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Posted to dev@lucene.apache.org by Apache Jenkins Server <je...@builds.apache.org> on 2018/03/20 02:48:43 UTC

[JENKINS] Lucene-Solr-Tests-7.3 - Build # 20 - Still Unstable

Build: https://builds.apache.org/job/Lucene-Solr-Tests-7.3/20/

3 tests failed.
FAILED:  junit.framework.TestSuite.org.apache.solr.cloud.TestLeaderElectionZkExpiry

Error Message:
ObjectTracker found 1 object(s) that were not released!!! [Overseer] org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: org.apache.solr.cloud.Overseer  at org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)  at org.apache.solr.cloud.Overseer.start(Overseer.java:545)  at org.apache.solr.cloud.OverseerElectionContext.runLeaderProcess(ElectionContext.java:850)  at org.apache.solr.cloud.LeaderElector.runIamLeaderProcess(LeaderElector.java:170)  at org.apache.solr.cloud.LeaderElector.checkIfIamLeader(LeaderElector.java:135)  at org.apache.solr.cloud.LeaderElector.joinElection(LeaderElector.java:307)  at org.apache.solr.cloud.LeaderElector.retryElection(LeaderElector.java:393)  at org.apache.solr.cloud.ZkController.rejoinOverseerElection(ZkController.java:2063)  at org.apache.solr.cloud.Overseer$ClusterStateUpdater.checkIfIamStillLeader(Overseer.java:331)  at java.lang.Thread.run(Thread.java:748)  

Stack Trace:
java.lang.AssertionError: ObjectTracker found 1 object(s) that were not released!!! [Overseer]
org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: org.apache.solr.cloud.Overseer
	at org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
	at org.apache.solr.cloud.Overseer.start(Overseer.java:545)
	at org.apache.solr.cloud.OverseerElectionContext.runLeaderProcess(ElectionContext.java:850)
	at org.apache.solr.cloud.LeaderElector.runIamLeaderProcess(LeaderElector.java:170)
	at org.apache.solr.cloud.LeaderElector.checkIfIamLeader(LeaderElector.java:135)
	at org.apache.solr.cloud.LeaderElector.joinElection(LeaderElector.java:307)
	at org.apache.solr.cloud.LeaderElector.retryElection(LeaderElector.java:393)
	at org.apache.solr.cloud.ZkController.rejoinOverseerElection(ZkController.java:2063)
	at org.apache.solr.cloud.Overseer$ClusterStateUpdater.checkIfIamStillLeader(Overseer.java:331)
	at java.lang.Thread.run(Thread.java:748)


	at __randomizedtesting.SeedInfo.seed([DE13BEE2F3FCCC8F]:0)
	at org.junit.Assert.fail(Assert.java:93)
	at org.junit.Assert.assertTrue(Assert.java:43)
	at org.junit.Assert.assertNull(Assert.java:551)
	at org.apache.solr.SolrTestCaseJ4.teardownTestCases(SolrTestCaseJ4.java:301)
	at sun.reflect.GeneratedMethodAccessor66.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1737)
	at com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:897)
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
	at com.carrotsearch.randomizedtesting.rules.SystemPropertiesRestoreRule$1.evaluate(SystemPropertiesRestoreRule.java:57)
	at org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:45)
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
	at org.apache.lucene.util.TestRuleStoreClassName$1.evaluate(TestRuleStoreClassName.java:41)
	at com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
	at com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
	at org.apache.lucene.util.TestRuleAssertionsRequired$1.evaluate(TestRuleAssertionsRequired.java:53)
	at org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:47)
	at org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:64)
	at org.apache.lucene.util.TestRuleIgnoreTestSuites$1.evaluate(TestRuleIgnoreTestSuites.java:54)
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
	at com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:368)
	at java.lang.Thread.run(Thread.java:748)


FAILED:  junit.framework.TestSuite.org.apache.solr.cloud.TestLeaderElectionZkExpiry

Error Message:
1 thread leaked from SUITE scope at org.apache.solr.cloud.TestLeaderElectionZkExpiry:     1) Thread[id=3649, name=OverseerAutoScalingTriggerThread-72309754993770505-dummy.host.com:8984_solr-n_0000000002, state=RUNNABLE, group=Overseer autoscaling triggers]         at org.apache.lucene.util.TestRuleLimitSysouts$DelegateStream.write(TestRuleLimitSysouts.java:128)         at java.io.PrintStream.write(PrintStream.java:480)         at sun.nio.cs.StreamEncoder.writeBytes(StreamEncoder.java:221)         at sun.nio.cs.StreamEncoder.implFlushBuffer(StreamEncoder.java:291)         at sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:295)         at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:141)         at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:229)         at org.apache.log4j.helpers.QuietWriter.flush(QuietWriter.java:59)         at org.apache.log4j.WriterAppender.subAppend(WriterAppender.java:324)         at org.apache.log4j.WriterAppender.append(WriterAppender.java:162)         at org.apache.log4j.AppenderSkeleton.doAppend(AppenderSkeleton.java:251)         at org.apache.log4j.helpers.AppenderAttachableImpl.appendLoopOnAppenders(AppenderAttachableImpl.java:66)         at org.apache.log4j.Category.callAppenders(Category.java:206)         at org.apache.log4j.Category.forcedLog(Category.java:391)         at org.apache.log4j.Category.log(Category.java:856)         at org.slf4j.impl.Log4jLoggerAdapter.error(Log4jLoggerAdapter.java:576)         at org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:140)         at java.lang.Thread.run(Thread.java:748)

Stack Trace:
com.carrotsearch.randomizedtesting.ThreadLeakError: 1 thread leaked from SUITE scope at org.apache.solr.cloud.TestLeaderElectionZkExpiry: 
   1) Thread[id=3649, name=OverseerAutoScalingTriggerThread-72309754993770505-dummy.host.com:8984_solr-n_0000000002, state=RUNNABLE, group=Overseer autoscaling triggers]
        at org.apache.lucene.util.TestRuleLimitSysouts$DelegateStream.write(TestRuleLimitSysouts.java:128)
        at java.io.PrintStream.write(PrintStream.java:480)
        at sun.nio.cs.StreamEncoder.writeBytes(StreamEncoder.java:221)
        at sun.nio.cs.StreamEncoder.implFlushBuffer(StreamEncoder.java:291)
        at sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:295)
        at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:141)
        at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:229)
        at org.apache.log4j.helpers.QuietWriter.flush(QuietWriter.java:59)
        at org.apache.log4j.WriterAppender.subAppend(WriterAppender.java:324)
        at org.apache.log4j.WriterAppender.append(WriterAppender.java:162)
        at org.apache.log4j.AppenderSkeleton.doAppend(AppenderSkeleton.java:251)
        at org.apache.log4j.helpers.AppenderAttachableImpl.appendLoopOnAppenders(AppenderAttachableImpl.java:66)
        at org.apache.log4j.Category.callAppenders(Category.java:206)
        at org.apache.log4j.Category.forcedLog(Category.java:391)
        at org.apache.log4j.Category.log(Category.java:856)
        at org.slf4j.impl.Log4jLoggerAdapter.error(Log4jLoggerAdapter.java:576)
        at org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:140)
        at java.lang.Thread.run(Thread.java:748)
	at __randomizedtesting.SeedInfo.seed([DE13BEE2F3FCCC8F]:0)


FAILED:  junit.framework.TestSuite.org.apache.solr.cloud.TestLeaderElectionZkExpiry

Error Message:
There are still zombie threads that couldn't be terminated:    1) Thread[id=3649, name=OverseerAutoScalingTriggerThread-72309754993770505-dummy.host.com:8984_solr-n_0000000002, state=RUNNABLE, group=Overseer autoscaling triggers]         at org.apache.lucene.util.TestRuleLimitSysouts$DelegateStream.write(TestRuleLimitSysouts.java:128)         at java.io.PrintStream.write(PrintStream.java:480)         at sun.nio.cs.StreamEncoder.writeBytes(StreamEncoder.java:221)         at sun.nio.cs.StreamEncoder.implFlushBuffer(StreamEncoder.java:291)         at sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:295)         at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:141)         at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:229)         at org.apache.log4j.helpers.QuietWriter.flush(QuietWriter.java:59)         at org.apache.log4j.WriterAppender.subAppend(WriterAppender.java:324)         at org.apache.log4j.WriterAppender.append(WriterAppender.java:162)         at org.apache.log4j.AppenderSkeleton.doAppend(AppenderSkeleton.java:251)         at org.apache.log4j.helpers.AppenderAttachableImpl.appendLoopOnAppenders(AppenderAttachableImpl.java:66)         at org.apache.log4j.Category.callAppenders(Category.java:206)         at org.apache.log4j.Category.forcedLog(Category.java:391)         at org.apache.log4j.Category.log(Category.java:856)         at org.slf4j.impl.Log4jLoggerAdapter.error(Log4jLoggerAdapter.java:576)         at org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:140)         at java.lang.Thread.run(Thread.java:748)

Stack Trace:
com.carrotsearch.randomizedtesting.ThreadLeakError: There are still zombie threads that couldn't be terminated:
   1) Thread[id=3649, name=OverseerAutoScalingTriggerThread-72309754993770505-dummy.host.com:8984_solr-n_0000000002, state=RUNNABLE, group=Overseer autoscaling triggers]
        at org.apache.lucene.util.TestRuleLimitSysouts$DelegateStream.write(TestRuleLimitSysouts.java:128)
        at java.io.PrintStream.write(PrintStream.java:480)
        at sun.nio.cs.StreamEncoder.writeBytes(StreamEncoder.java:221)
        at sun.nio.cs.StreamEncoder.implFlushBuffer(StreamEncoder.java:291)
        at sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:295)
        at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:141)
        at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:229)
        at org.apache.log4j.helpers.QuietWriter.flush(QuietWriter.java:59)
        at org.apache.log4j.WriterAppender.subAppend(WriterAppender.java:324)
        at org.apache.log4j.WriterAppender.append(WriterAppender.java:162)
        at org.apache.log4j.AppenderSkeleton.doAppend(AppenderSkeleton.java:251)
        at org.apache.log4j.helpers.AppenderAttachableImpl.appendLoopOnAppenders(AppenderAttachableImpl.java:66)
        at org.apache.log4j.Category.callAppenders(Category.java:206)
        at org.apache.log4j.Category.forcedLog(Category.java:391)
        at org.apache.log4j.Category.log(Category.java:856)
        at org.slf4j.impl.Log4jLoggerAdapter.error(Log4jLoggerAdapter.java:576)
        at org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:140)
        at java.lang.Thread.run(Thread.java:748)
	at __randomizedtesting.SeedInfo.seed([DE13BEE2F3FCCC8F]:0)




Build Log:
[...truncated 12494 lines...]
   [junit4] Suite: org.apache.solr.cloud.TestLeaderElectionZkExpiry
   [junit4]   2> 809233 INFO  (SUITE-TestLeaderElectionZkExpiry-seed#[DE13BEE2F3FCCC8F]-worker) [    ] o.a.s.SolrTestCaseJ4 SecureRandom sanity checks: test.solr.allowed.securerandom=null & java.security.egd=file:/dev/./urandom
   [junit4]   2> Creating dataDir: /home/jenkins/jenkins-slave/workspace/Lucene-Solr-Tests-7.3/solr/build/solr-core/test/J2/temp/solr.cloud.TestLeaderElectionZkExpiry_DE13BEE2F3FCCC8F-001/init-core-data-001
   [junit4]   2> 809233 WARN  (SUITE-TestLeaderElectionZkExpiry-seed#[DE13BEE2F3FCCC8F]-worker) [    ] o.a.s.SolrTestCaseJ4 startTrackingSearchers: numOpens=11 numCloses=11
   [junit4]   2> 809233 INFO  (SUITE-TestLeaderElectionZkExpiry-seed#[DE13BEE2F3FCCC8F]-worker) [    ] o.a.s.SolrTestCaseJ4 Using PointFields (NUMERIC_POINTS_SYSPROP=true) w/NUMERIC_DOCVALUES_SYSPROP=true
   [junit4]   2> 809235 INFO  (SUITE-TestLeaderElectionZkExpiry-seed#[DE13BEE2F3FCCC8F]-worker) [    ] o.a.s.SolrTestCaseJ4 Randomized ssl (true) and clientAuth (true) via: @org.apache.solr.util.RandomizeSSL(reason=, ssl=NaN, value=NaN, clientAuth=NaN)
   [junit4]   2> 809320 INFO  (TEST-TestLeaderElectionZkExpiry.testLeaderElectionWithZkExpiry-seed#[DE13BEE2F3FCCC8F]) [    ] o.a.s.SolrTestCaseJ4 ###Starting testLeaderElectionWithZkExpiry
   [junit4]   2> 809327 INFO  (TEST-TestLeaderElectionZkExpiry.testLeaderElectionWithZkExpiry-seed#[DE13BEE2F3FCCC8F]) [    ] o.a.s.c.SolrXmlConfig MBean server found: com.sun.jmx.mbeanserver.JmxMBeanServer@793d7725, but no JMX reporters were configured - adding default JMX reporter.
   [junit4]   2> 809550 INFO  (TEST-TestLeaderElectionZkExpiry.testLeaderElectionWithZkExpiry-seed#[DE13BEE2F3FCCC8F]) [    ] o.a.s.m.r.SolrJmxReporter JMX monitoring for 'solr.node' (registry 'solr.node') enabled at server: com.sun.jmx.mbeanserver.JmxMBeanServer@793d7725
   [junit4]   2> 809697 INFO  (TEST-TestLeaderElectionZkExpiry.testLeaderElectionWithZkExpiry-seed#[DE13BEE2F3FCCC8F]) [    ] o.a.s.m.r.SolrJmxReporter JMX monitoring for 'solr.jvm' (registry 'solr.jvm') enabled at server: com.sun.jmx.mbeanserver.JmxMBeanServer@793d7725
   [junit4]   2> 809697 INFO  (TEST-TestLeaderElectionZkExpiry.testLeaderElectionWithZkExpiry-seed#[DE13BEE2F3FCCC8F]) [    ] o.a.s.m.r.SolrJmxReporter JMX monitoring for 'solr.jetty' (registry 'solr.jetty') enabled at server: com.sun.jmx.mbeanserver.JmxMBeanServer@793d7725
   [junit4]   2> 809710 INFO  (TEST-TestLeaderElectionZkExpiry.testLeaderElectionWithZkExpiry-seed#[DE13BEE2F3FCCC8F]) [    ] o.a.s.c.CorePropertiesLocator Found 0 core definitions underneath /home/jenkins/jenkins-slave/workspace/Lucene-Solr-Tests-7.3/solr/build/solr-core/test/J2/temp/solr.cloud.TestLeaderElectionZkExpiry_DE13BEE2F3FCCC8F-001/testLeaderElectionWithZkExpiry-solr-001
   [junit4]   2> 809731 INFO  (TEST-TestLeaderElectionZkExpiry.testLeaderElectionWithZkExpiry-seed#[DE13BEE2F3FCCC8F]) [    ] o.a.s.c.ZkTestServer STARTING ZK TEST SERVER
   [junit4]   2> 809731 INFO  (Thread-512) [    ] o.a.s.c.ZkTestServer client port:0.0.0.0/0.0.0.0:0
   [junit4]   2> 809731 INFO  (Thread-512) [    ] o.a.s.c.ZkTestServer Starting server
   [junit4]   2> 809732 ERROR (Thread-512) [    ] o.a.z.s.ZooKeeperServer ZKShutdownHandler is not registered, so ZooKeeper server won't take any action on ERROR or SHUTDOWN server state changes
   [junit4]   2> 809831 INFO  (TEST-TestLeaderElectionZkExpiry.testLeaderElectionWithZkExpiry-seed#[DE13BEE2F3FCCC8F]) [    ] o.a.s.c.ZkTestServer start zk server on port:43504
   [junit4]   2> 809851 INFO  (zkConnectionManagerCallback-718-thread-1) [    ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 809865 INFO  (zkConnectionManagerCallback-720-thread-1) [    ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 809917 INFO  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 810234 INFO  (TEST-TestLeaderElectionZkExpiry.testLeaderElectionWithZkExpiry-seed#[DE13BEE2F3FCCC8F]) [n:dummy.host.com:8984_solr    ] o.a.s.c.Overseer Overseer (id=null) closing
   [junit4]   2> 810254 INFO  (TEST-TestLeaderElectionZkExpiry.testLeaderElectionWithZkExpiry-seed#[DE13BEE2F3FCCC8F]) [n:dummy.host.com:8984_solr    ] o.a.s.c.OverseerElectionContext I am going to be the leader dummy.host.com:8984_solr
   [junit4]   2> 810255 INFO  (TEST-TestLeaderElectionZkExpiry.testLeaderElectionWithZkExpiry-seed#[DE13BEE2F3FCCC8F]) [n:dummy.host.com:8984_solr    ] o.a.s.c.Overseer Overseer (id=72309754993770498-dummy.host.com:8984_solr-n_0000000000) starting
   [junit4]   2> 810306 INFO  (zkConnectionManagerCallback-727-thread-1-processing-n:dummy.host.com:8984_solr) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 810308 INFO  (TEST-TestLeaderElectionZkExpiry.testLeaderElectionWithZkExpiry-seed#[DE13BEE2F3FCCC8F]) [n:dummy.host.com:8984_solr    ] o.a.s.c.s.i.ZkClientClusterStateProvider Cluster at 127.0.0.1:43504/solr ready
   [junit4]   2> 810417 INFO  (TEST-TestLeaderElectionZkExpiry.testLeaderElectionWithZkExpiry-seed#[DE13BEE2F3FCCC8F]) [n:dummy.host.com:8984_solr    ] o.a.s.c.ZkController Register node as live in ZooKeeper:/live_nodes/dummy.host.com:8984_solr
   [junit4]   2> 810525 INFO  (zkCallback-726-thread-1-processing-n:dummy.host.com:8984_solr) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 810528 WARN  (NIOServerCxn.Factory:0.0.0.0/0.0.0.0:0) [    ] o.a.z.s.NIOServerCnxnFactory Ignoring unexpected runtime exception
   [junit4]   2> java.nio.channels.CancelledKeyException
   [junit4]   2> 	at sun.nio.ch.SelectionKeyImpl.ensureValid(SelectionKeyImpl.java:73)
   [junit4]   2> 	at sun.nio.ch.SelectionKeyImpl.readyOps(SelectionKeyImpl.java:87)
   [junit4]   2> 	at org.apache.zookeeper.server.NIOServerCnxnFactory.run(NIOServerCnxnFactory.java:205)
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> 810546 INFO  (zkCallback-726-thread-1-processing-n:dummy.host.com:8984_solr) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (0)
   [junit4]   2> 810656 WARN  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.ConnectionManager Watcher org.apache.solr.common.cloud.ConnectionManager@6ff854f3 name: ZooKeeperConnection Watcher:127.0.0.1:43504/solr got event WatchedEvent state:Disconnected type:None path:null path: null type: None
   [junit4]   2> 810656 WARN  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.ConnectionManager zkClient has disconnected
   [junit4]   2> 812429 WARN  (TEST-TestLeaderElectionZkExpiry.testLeaderElectionWithZkExpiry-seed#[DE13BEE2F3FCCC8F]-SendThread(127.0.0.1:43504)) [n:dummy.host.com:8984_solr    ] o.a.z.ClientCnxn Unable to reconnect to ZooKeeper service, session 0x100e556cc330002 has expired
   [junit4]   2> 812449 WARN  (OverseerStateUpdate-72309754993770498-dummy.host.com:8984_solr-n_0000000000) [n:dummy.host.com:8984_solr    ] o.a.s.c.Overseer Solr cannot talk to ZK, exiting Overseer main queue loop
   [junit4]   2> org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /overseer/queue
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:130)
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54)
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.getChildren(ZooKeeper.java:1535)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$getChildren$4(SolrZkClient.java:328)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.getChildren(SolrZkClient.java:328)
   [junit4]   2> 	at org.apache.solr.cloud.ZkDistributedQueue.fetchZkChildren(ZkDistributedQueue.java:410)
   [junit4]   2> 	at org.apache.solr.cloud.ZkDistributedQueue.firstChild(ZkDistributedQueue.java:387)
   [junit4]   2> 	at org.apache.solr.cloud.ZkDistributedQueue.peekElements(ZkDistributedQueue.java:441)
   [junit4]   2> 	at org.apache.solr.cloud.Overseer$ClusterStateUpdater.run(Overseer.java:205)
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> 812449 INFO  (OverseerStateUpdate-72309754993770498-dummy.host.com:8984_solr-n_0000000000) [n:dummy.host.com:8984_solr    ] o.a.s.c.Overseer Overseer Loop exiting : dummy.host.com:8984_solr
   [junit4]   2> 812502 WARN  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.ConnectionManager Watcher org.apache.solr.common.cloud.ConnectionManager@6ff854f3 name: ZooKeeperConnection Watcher:127.0.0.1:43504/solr got event WatchedEvent state:Expired type:None path:null path: null type: None
   [junit4]   2> 812502 WARN  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.ConnectionManager Our previous ZooKeeper session was expired. Attempting to reconnect to recover relationship with ZooKeeper...
   [junit4]   2> 812502 INFO  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr) [n:dummy.host.com:8984_solr    ] o.a.s.c.Overseer Overseer (id=72309754993770498-dummy.host.com:8984_solr-n_0000000000) closing
   [junit4]   2> 812502 INFO  (OverseerCollectionConfigSetProcessor-72309754993770498-dummy.host.com:8984_solr-n_0000000000) [n:dummy.host.com:8984_solr    ] o.a.s.c.OverseerTaskProcessor According to ZK I (id=72309754993770498-dummy.host.com:8984_solr-n_0000000000) am no longer a leader.
   [junit4]   2> 812502 WARN  (OverseerAutoScalingTriggerThread-72309754993770498-dummy.host.com:8984_solr-n_0000000000) [n:dummy.host.com:8984_solr    ] o.a.s.c.a.OverseerTriggerThread OverseerTriggerThread woken up but we are closed, exiting.
   [junit4]   2> 812502 ERROR (OverseerExitThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.Overseer could not read the data
   [junit4]   2> org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /overseer_elect/leader
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:130)
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54)
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.cloud.Overseer$ClusterStateUpdater.checkIfIamStillLeader(Overseer.java:306)
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> 812611 WARN  (zkCallback-721-thread-1-processing-n:dummy.host.com:8984_solr) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.ZkStateReader ZooKeeper watch triggered, but Solr cannot talk to ZK: [KeeperErrorCode = Session expired for /live_nodes]
   [junit4]   2> 812623 WARN  (ScheduledTrigger-1042-thread-1) [n:dummy.host.com:8984_solr    ] o.a.s.c.a.TriggerEventQueue Exception peeking queue of trigger .auto_add_replicas
   [junit4]   2> org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /autoscaling/events/.auto_add_replicas
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:130)
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54)
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.getChildren(ZooKeeper.java:1535)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$getChildren$4(SolrZkClient.java:328)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.getChildren(SolrZkClient.java:328)
   [junit4]   2> 	at org.apache.solr.cloud.ZkDistributedQueue.fetchZkChildren(ZkDistributedQueue.java:410)
   [junit4]   2> 	at org.apache.solr.cloud.ZkDistributedQueue.firstChild(ZkDistributedQueue.java:387)
   [junit4]   2> 	at org.apache.solr.cloud.ZkDistributedQueue.firstElement(ZkDistributedQueue.java:504)
   [junit4]   2> 	at org.apache.solr.cloud.ZkDistributedQueue.peek(ZkDistributedQueue.java:145)
   [junit4]   2> 	at org.apache.solr.cloud.autoscaling.TriggerEventQueue.peekEvent(TriggerEventQueue.java:69)
   [junit4]   2> 	at org.apache.solr.cloud.autoscaling.ScheduledTriggers$TriggerWrapper.run(ScheduledTriggers.java:554)
   [junit4]   2> 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
   [junit4]   2> 	at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
   [junit4]   2> 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
   [junit4]   2> 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
   [junit4]   2> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
   [junit4]   2> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> 812717 WARN  (ScheduledTrigger-1042-thread-1) [n:dummy.host.com:8984_solr    ] o.a.s.c.a.TriggerBase Exception getting trigger state '/autoscaling/triggerState/.auto_add_replicas'
   [junit4]   2> java.lang.InterruptedException
   [junit4]   2> 	at java.lang.Object.wait(Native Method)
   [junit4]   2> 	at java.lang.Object.wait(Object.java:502)
   [junit4]   2> 	at org.apache.zookeeper.ClientCnxn.submitRequest(ClientCnxn.java:1409)
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:1100)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$exists$3(SolrZkClient.java:316)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.exists(SolrZkClient.java:316)
   [junit4]   2> 	at org.apache.solr.client.solrj.impl.ZkDistribStateManager.hasData(ZkDistribStateManager.java:58)
   [junit4]   2> 	at org.apache.solr.cloud.autoscaling.TriggerBase.restoreState(TriggerBase.java:221)
   [junit4]   2> 	at org.apache.solr.cloud.autoscaling.ScheduledTriggers$TriggerWrapper.run(ScheduledTriggers.java:564)
   [junit4]   2> 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
   [junit4]   2> 	at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
   [junit4]   2> 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
   [junit4]   2> 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
   [junit4]   2> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
   [junit4]   2> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> 812729 WARN  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.DefaultConnectionStrategy Connection expired - starting a new one...
   [junit4]   2> 812912 INFO  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 812913 INFO  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.ConnectionManager Connection with ZooKeeper reestablished.
   [junit4]   2> 812913 INFO  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr) [n:dummy.host.com:8984_solr    ] o.a.s.c.ZkController ZooKeeper session re-connected ... refreshing core states after session expiration.
   [junit4]   2> 812914 WARN  (ScheduledTrigger-1042-thread-1) [n:dummy.host.com:8984_solr    ] o.a.s.c.a.NodeLostTrigger NodeLostTrigger ran but was already closed
   [junit4]   2> 813037 WARN  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.ConnectionManager Watcher org.apache.solr.common.cloud.ConnectionManager@6ff854f3 name: ZooKeeperConnection Watcher:127.0.0.1:43504/solr got event WatchedEvent state:Disconnected type:None path:null path: null type: None
   [junit4]   2> 813037 WARN  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.ConnectionManager zkClient has disconnected
   [junit4]   2> 814572 WARN  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-SendThread(127.0.0.1:43504)) [n:dummy.host.com:8984_solr    ] o.a.z.ClientCnxn Unable to reconnect to ZooKeeper service, session 0x100e556cc330004 has expired
   [junit4]   2> 814572 WARN  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.ConnectionManager Watcher org.apache.solr.common.cloud.ConnectionManager@6ff854f3 name: ZooKeeperConnection Watcher:127.0.0.1:43504/solr got event WatchedEvent state:Expired type:None path:null path: null type: None
   [junit4]   2> 814572 WARN  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.ConnectionManager Our previous ZooKeeper session was expired. Attempting to reconnect to recover relationship with ZooKeeper...
   [junit4]   2> 814572 WARN  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.DefaultConnectionStrategy Connection expired - starting a new one...
   [junit4]   2> 814574 INFO  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 814574 INFO  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.ConnectionManager Connection with ZooKeeper reestablished.
   [junit4]   2> 814574 INFO  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.ZkController ZooKeeper session re-connected ... refreshing core states after session expiration.
   [junit4]   2> 814673 ERROR (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr) [n:dummy.host.com:8984_solr    ] o.a.s.c.ZkController :org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /security.json
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:130)
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54)
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:1105)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$exists$2(SolrZkClient.java:304)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.exists(SolrZkClient.java:304)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkStateReader.addSecurityNodeWatcher(ZkStateReader.java:461)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkStateReader.createClusterStateWatchersAndUpdate(ZkStateReader.java:444)
   [junit4]   2> 	at org.apache.solr.cloud.ZkController$1.command(ZkController.java:330)
   [junit4]   2> 	at org.apache.solr.common.cloud.ConnectionManager$1.update(ConnectionManager.java:167)
   [junit4]   2> 	at org.apache.solr.common.cloud.DefaultConnectionStrategy.reconnect(DefaultConnectionStrategy.java:57)
   [junit4]   2> 	at org.apache.solr.common.cloud.ConnectionManager.process(ConnectionManager.java:141)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient$1.lambda$process$0(SolrZkClient.java:267)
   [junit4]   2> 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
   [junit4]   2> 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
   [junit4]   2> 	at org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:188)
   [junit4]   2> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
   [junit4]   2> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> 
   [junit4]   2> 814673 ERROR (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.DefaultConnectionStrategy Reconnect to ZooKeeper failed:org.apache.solr.common.cloud.ZooKeeperException: 
   [junit4]   2> 	at org.apache.solr.cloud.ZkController$1.command(ZkController.java:415)
   [junit4]   2> 	at org.apache.solr.common.cloud.ConnectionManager$1.update(ConnectionManager.java:167)
   [junit4]   2> 	at org.apache.solr.common.cloud.DefaultConnectionStrategy.reconnect(DefaultConnectionStrategy.java:57)
   [junit4]   2> 	at org.apache.solr.common.cloud.ConnectionManager.process(ConnectionManager.java:141)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient$1.lambda$process$0(SolrZkClient.java:267)
   [junit4]   2> 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
   [junit4]   2> 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
   [junit4]   2> 	at org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:188)
   [junit4]   2> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
   [junit4]   2> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> Caused by: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /security.json
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:130)
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54)
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:1105)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$exists$2(SolrZkClient.java:304)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.exists(SolrZkClient.java:304)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkStateReader.addSecurityNodeWatcher(ZkStateReader.java:461)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkStateReader.createClusterStateWatchersAndUpdate(ZkStateReader.java:444)
   [junit4]   2> 	at org.apache.solr.cloud.ZkController$1.command(ZkController.java:330)
   [junit4]   2> 	... 10 more
   [junit4]   2> 
   [junit4]   2> 814673 WARN  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.DefaultConnectionStrategy Reconnect to ZooKeeper failed
   [junit4]   2> 814694 INFO  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.ConnectionManager zkClient Connected:true
   [junit4]   2> 814694 WARN  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.ConnectionManager Watcher org.apache.solr.common.cloud.ConnectionManager@6ff854f3 name: ZooKeeperConnection Watcher:127.0.0.1:43504/solr got event WatchedEvent state:Disconnected type:None path:null path: null type: None
   [junit4]   2> 814694 WARN  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.ConnectionManager zkClient has disconnected
   [junit4]   2> 816627 WARN  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-SendThread(127.0.0.1:43504)) [n:dummy.host.com:8984_solr    ] o.a.z.ClientCnxn Unable to reconnect to ZooKeeper service, session 0x100e556cc330005 has expired
   [junit4]   2> 816627 WARN  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.ConnectionManager Watcher org.apache.solr.common.cloud.ConnectionManager@6ff854f3 name: ZooKeeperConnection Watcher:127.0.0.1:43504/solr got event WatchedEvent state:Expired type:None path:null path: null type: None
   [junit4]   2> 816627 WARN  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.ConnectionManager Our previous ZooKeeper session was expired. Attempting to reconnect to recover relationship with ZooKeeper...
   [junit4]   2> 816627 WARN  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.DefaultConnectionStrategy Connection expired - starting a new one...
   [junit4]   2> 816657 INFO  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 816657 INFO  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.ConnectionManager Connection with ZooKeeper reestablished.
   [junit4]   2> 816657 INFO  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.ZkController ZooKeeper session re-connected ... refreshing core states after session expiration.
   [junit4]   2> 816747 ERROR (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.ZkController :org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /clusterstate.json
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:130)
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54)
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:1105)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$exists$3(SolrZkClient.java:316)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.exists(SolrZkClient.java:316)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkStateReader.createClusterStateWatchersAndUpdate(ZkStateReader.java:430)
   [junit4]   2> 	at org.apache.solr.cloud.ZkController$1.command(ZkController.java:330)
   [junit4]   2> 	at org.apache.solr.common.cloud.ConnectionManager$1.update(ConnectionManager.java:167)
   [junit4]   2> 	at org.apache.solr.common.cloud.DefaultConnectionStrategy.reconnect(DefaultConnectionStrategy.java:57)
   [junit4]   2> 	at org.apache.solr.common.cloud.ConnectionManager.process(ConnectionManager.java:141)
   [junit4]   2> 	at org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:531)
   [junit4]   2> 	at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:506)
   [junit4]   2> 
   [junit4]   2> 816747 ERROR (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.DefaultConnectionStrategy Reconnect to ZooKeeper failed:org.apache.solr.common.cloud.ZooKeeperException: 
   [junit4]   2> 	at org.apache.solr.cloud.ZkController$1.command(ZkController.java:415)
   [junit4]   2> 	at org.apache.solr.common.cloud.ConnectionManager$1.update(ConnectionManager.java:167)
   [junit4]   2> 	at org.apache.solr.common.cloud.DefaultConnectionStrategy.reconnect(DefaultConnectionStrategy.java:57)
   [junit4]   2> 	at org.apache.solr.common.cloud.ConnectionManager.process(ConnectionManager.java:141)
   [junit4]   2> 	at org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:531)
   [junit4]   2> 	at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:506)
   [junit4]   2> Caused by: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /clusterstate.json
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:130)
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54)
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:1105)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$exists$3(SolrZkClient.java:316)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.exists(SolrZkClient.java:316)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkStateReader.createClusterStateWatchersAndUpdate(ZkStateReader.java:430)
   [junit4]   2> 	at org.apache.solr.cloud.ZkController$1.command(ZkController.java:330)
   [junit4]   2> 	... 5 more
   [junit4]   2> 
   [junit4]   2> 816747 WARN  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.DefaultConnectionStrategy Reconnect to ZooKeeper failed
   [junit4]   2> 816747 INFO  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.ConnectionManager zkClient Connected:true
   [junit4]   2> 816787 WARN  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.ConnectionManager Watcher org.apache.solr.common.cloud.ConnectionManager@6ff854f3 name: ZooKeeperConnection Watcher:127.0.0.1:43504/solr got event WatchedEvent state:Disconnected type:None path:null path: null type: None
   [junit4]   2> 816787 WARN  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.ConnectionManager zkClient has disconnected
   [junit4]   2> 818559 WARN  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-SendThread(127.0.0.1:43504)) [n:dummy.host.com:8984_solr    ] o.a.z.ClientCnxn Unable to reconnect to ZooKeeper service, session 0x100e556cc330006 has expired
   [junit4]   2> 818559 WARN  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.ConnectionManager Watcher org.apache.solr.common.cloud.ConnectionManager@6ff854f3 name: ZooKeeperConnection Watcher:127.0.0.1:43504/solr got event WatchedEvent state:Expired type:None path:null path: null type: None
   [junit4]   2> 818559 WARN  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.ConnectionManager Our previous ZooKeeper session was expired. Attempting to reconnect to recover relationship with ZooKeeper...
   [junit4]   2> 818559 WARN  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.DefaultConnectionStrategy Connection expired - starting a new one...
   [junit4]   2> 818574 INFO  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 818574 INFO  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.ConnectionManager Connection with ZooKeeper reestablished.
   [junit4]   2> 818574 INFO  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.ZkController ZooKeeper session re-connected ... refreshing core states after session expiration.
   [junit4]   2> 818660 ERROR (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.ZkController :org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /clusterstate.json
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:130)
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54)
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:1105)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$exists$3(SolrZkClient.java:316)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.exists(SolrZkClient.java:316)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkStateReader.createClusterStateWatchersAndUpdate(ZkStateReader.java:430)
   [junit4]   2> 	at org.apache.solr.cloud.ZkController$1.command(ZkController.java:330)
   [junit4]   2> 	at org.apache.solr.common.cloud.ConnectionManager$1.update(ConnectionManager.java:167)
   [junit4]   2> 	at org.apache.solr.common.cloud.DefaultConnectionStrategy.reconnect(DefaultConnectionStrategy.java:57)
   [junit4]   2> 	at org.apache.solr.common.cloud.ConnectionManager.process(ConnectionManager.java:141)
   [junit4]   2> 	at org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:531)
   [junit4]   2> 	at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:506)
   [junit4]   2> 
   [junit4]   2> 818660 ERROR (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.DefaultConnectionStrategy Reconnect to ZooKeeper failed:org.apache.solr.common.cloud.ZooKeeperException: 
   [junit4]   2> 	at org.apache.solr.cloud.ZkController$1.command(ZkController.java:415)
   [junit4]   2> 	at org.apache.solr.common.cloud.ConnectionManager$1.update(ConnectionManager.java:167)
   [junit4]   2> 	at org.apache.solr.common.cloud.DefaultConnectionStrategy.reconnect(DefaultConnectionStrategy.java:57)
   [junit4]   2> 	at org.apache.solr.common.cloud.ConnectionManager.process(ConnectionManager.java:141)
   [junit4]   2> 	at org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:531)
   [junit4]   2> 	at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:506)
   [junit4]   2> Caused by: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /clusterstate.json
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:130)
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54)
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:1105)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$exists$3(SolrZkClient.java:316)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.exists(SolrZkClient.java:316)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkStateReader.createClusterStateWatchersAndUpdate(ZkStateReader.java:430)
   [junit4]   2> 	at org.apache.solr.cloud.ZkController$1.command(ZkController.java:330)
   [junit4]   2> 	... 5 more
   [junit4]   2> 
   [junit4]   2> 818660 WARN  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.DefaultConnectionStrategy Reconnect to ZooKeeper failed
   [junit4]   2> 818660 INFO  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.ConnectionManager zkClient Connected:true
   [junit4]   2> 818687 WARN  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.ConnectionManager Watcher org.apache.solr.common.cloud.ConnectionManager@6ff854f3 name: ZooKeeperConnection Watcher:127.0.0.1:43504/solr got event WatchedEvent state:Disconnected type:None path:null path: null type: None
   [junit4]   2> 818687 WARN  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.ConnectionManager zkClient has disconnected
   [junit4]   2> 820499 INFO  (zkConnectionManagerCallback-729-thread-1-processing-n:dummy.host.com:8984_solr) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 820599 WARN  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-SendThread(127.0.0.1:43504)) [n:dummy.host.com:8984_solr    ] o.a.z.ClientCnxn Unable to reconnect to ZooKeeper service, session 0x100e556cc330007 has expired
   [junit4]   2> 820599 WARN  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.ConnectionManager Watcher org.apache.solr.common.cloud.ConnectionManager@6ff854f3 name: ZooKeeperConnection Watcher:127.0.0.1:43504/solr got event WatchedEvent state:Expired type:None path:null path: null type: None
   [junit4]   2> 820599 WARN  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.ConnectionManager Our previous ZooKeeper session was expired. Attempting to reconnect to recover relationship with ZooKeeper...
   [junit4]   2> 820599 WARN  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.DefaultConnectionStrategy Connection expired - starting a new one...
   [junit4]   2> 820600 INFO  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 820600 INFO  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.ConnectionManager Connection with ZooKeeper reestablished.
   [junit4]   2> 820600 INFO  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.ZkController ZooKeeper session re-connected ... refreshing core states after session expiration.
   [junit4]   2> 820708 ERROR (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.ZkController :org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /clusterstate.json
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:130)
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54)
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:1105)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$exists$3(SolrZkClient.java:316)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.exists(SolrZkClient.java:316)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkStateReader.createClusterStateWatchersAndUpdate(ZkStateReader.java:430)
   [junit4]   2> 	at org.apache.solr.cloud.ZkController$1.command(ZkController.java:330)
   [junit4]   2> 	at org.apache.solr.common.cloud.ConnectionManager$1.update(ConnectionManager.java:167)
   [junit4]   2> 	at org.apache.solr.common.cloud.DefaultConnectionStrategy.reconnect(DefaultConnectionStrategy.java:57)
   [junit4]   2> 	at org.apache.solr.common.cloud.ConnectionManager.process(ConnectionManager.java:141)
   [junit4]   2> 	at org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:531)
   [junit4]   2> 	at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:506)
   [junit4]   2> 
   [junit4]   2> 820708 ERROR (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.DefaultConnectionStrategy Reconnect to ZooKeeper failed:org.apache.solr.common.cloud.ZooKeeperException: 
   [junit4]   2> 	at org.apache.solr.cloud.ZkController$1.command(ZkController.java:415)
   [junit4]   2> 	at org.apache.solr.common.cloud.ConnectionManager$1.update(ConnectionManager.java:167)
   [junit4]   2> 	at org.apache.solr.common.cloud.DefaultConnectionStrategy.reconnect(DefaultConnectionStrategy.java:57)
   [junit4]   2> 	at org.apache.solr.common.cloud.ConnectionManager.process(ConnectionManager.java:141)
   [junit4]   2> 	at org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:531)
   [junit4]   2> 	at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:506)
   [junit4]   2> Caused by: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /clusterstate.json
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:130)
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54)
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:1105)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$exists$3(SolrZkClient.java:316)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.exists(SolrZkClient.java:316)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkStateReader.createClusterStateWatchersAndUpdate(ZkStateReader.java:430)
   [junit4]   2> 	at org.apache.solr.cloud.ZkController$1.command(ZkController.java:330)
   [junit4]   2> 	... 5 more
   [junit4]   2> 
   [junit4]   2> 820708 WARN  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.DefaultConnectionStrategy Reconnect to ZooKeeper failed
   [junit4]   2> 820708 INFO  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.ConnectionManager zkClient Connected:true
   [junit4]   2> 820712 INFO  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.OverseerElectionContext I am going to be the leader dummy.host.com:8984_solr
   [junit4]   2> 820713 INFO  (TEST-TestLeaderElectionZkExpiry.testLeaderElectionWithZkExpiry-seed#[DE13BEE2F3FCCC8F]) [n:dummy.host.com:8984_solr    ] o.a.s.c.TestLeaderElectionZkExpiry Time=3847681816227545 Overseer leader is = dummy.host.com:8984_solr
   [junit4]   2> 820713 INFO  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.Overseer Overseer (id=72309754993770505-dummy.host.com:8984_solr-n_0000000001) starting
   [junit4]   2> 820716 INFO  (TEST-TestLeaderElectionZkExpiry.testLeaderElectionWithZkExpiry-seed#[DE13BEE2F3FCCC8F]) [n:dummy.host.com:8984_solr    ] o.a.s.c.Overseer Overseer (id=72309754993770505-dummy.host.com:8984_solr-n_0000000001) closing
   [junit4]   2> 820716 INFO  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.ZkController Register node as live in ZooKeeper:/live_nodes/dummy.host.com:8984_solr
   [junit4]   2> 820716 INFO  (OverseerStateUpdate-72309754993770505-dummy.host.com:8984_solr-n_0000000001) [n:dummy.host.com:8984_solr    ] o.a.s.c.Overseer Overseer Loop exiting : dummy.host.com:8984_solr
   [junit4]   2> 820717 WARN  (OverseerAutoScalingTriggerThread-72309754993770505-dummy.host.com:8984_solr-n_0000000001) [n:dummy.host.com:8984_solr    ] o.a.s.c.a.OverseerTriggerThread Interrupted
   [junit4]   2> java.lang.InterruptedException
   [junit4]   2> 	at java.lang.Object.wait(Native Method)
   [junit4]   2> 	at java.lang.Object.wait(Object.java:502)
   [junit4]   2> 	at org.apache.zookeeper.ClientCnxn.submitRequest(ClientCnxn.java:1409)
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1213)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
   [junit4]   2> 	at org.apache.solr.client.solrj.cloud.autoscaling.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:78)
   [junit4]   2> 	at org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:126)
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> 820717 ERROR (OverseerCollectionConfigSetProcessor-72309754993770505-dummy.host.com:8984_solr-n_0000000001) [n:dummy.host.com:8984_solr    ] o.a.s.c.OverseerTaskProcessor Unable to prioritize overseer 
   [junit4]   2> java.lang.InterruptedException
   [junit4]   2> 	at java.lang.Object.wait(Native Method)
   [junit4]   2> 	at java.lang.Object.wait(Object.java:502)
   [junit4]   2> 	at org.apache.zookeeper.ClientCnxn.submitRequest(ClientCnxn.java:1409)
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:1100)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$exists$3(SolrZkClient.java:316)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.exists(SolrZkClient.java:316)
   [junit4]   2> 	at org.apache.solr.cloud.OverseerNodePrioritizer.prioritizeOverseerNodes(OverseerNodePrioritizer.java:60)
   [junit4]   2> 	at org.apache.solr.cloud.OverseerTaskProcessor.run(OverseerTaskProcessor.java:178)
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> 820719 INFO  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.DefaultConnectionStrategy Reconnected to ZooKeeper
   [junit4]   2> 820719 INFO  (zkConnectionManagerCallback-722-thread-1-processing-n:dummy.host.com:8984_solr-EventThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.ConnectionManager zkClient Connected:true
   [junit4]   2> 820719 INFO  (zkCallback-721-thread-5-processing-n:dummy.host.com:8984_solr) [n:dummy.host.com:8984_solr    ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 820719 WARN  (OverseerExitThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.Overseer I'm exiting, but I'm still the leader
   [junit4]   2> 820737 INFO  (OverseerExitThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.OverseerElectionContext I am going to be the leader dummy.host.com:8984_solr
   [junit4]   2> 820738 INFO  (OverseerExitThread) [n:dummy.host.com:8984_solr    ] o.a.s.c.Overseer Overseer (id=72309754993770505-dummy.host.com:8984_solr-n_0000000002) starting
   [junit4]   2> 820741 ERROR (OverseerAutoScalingTriggerThread-72309754993770505-dummy.host.com:8984_solr-n_0000000002) [n:dummy.host.com:8984_solr    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /autoscaling.json
   [junit4]   2> 	at org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
   [junit4]   2> 	at org.apache.solr.client.solrj.cloud.autoscaling.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:78)
   [junit4]   2> 	at org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:126)
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> Caused by: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /autoscaling.json
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:130)
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54)
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
   [junit4]   2> 	... 3 more
   [junit4]   2> 820741 ERROR (OverseerAutoScalingTriggerThread-72309754993770505-dummy.host.com:8984_solr-n_0000000002) [n:dummy.host.com:8984_solr    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /autoscaling.json
   [junit4]   2> 	at org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
   [junit4]   2> 	at org.apache.solr.client.solrj.cloud.autoscaling.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:78)
   [junit4]   2> 	at org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:126)
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> Caused by: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /autoscaling.json
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:130)
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54)
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
   [junit4]   2> 	... 3 more
   [junit4]   2> 820742 ERROR (OverseerAutoScalingTriggerThread-72309754993770505-dummy.host.com:8984_solr-n_0000000002) [n:dummy.host.com:8984_solr    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /autoscaling.json
   [junit4]   2> 	at org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
   [junit4]   2> 	at org.apache.solr.client.solrj.cloud.autoscaling.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:78)
   [junit4]   2> 	at org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:126)
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> Caused by: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /autoscaling.json
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:130)
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54)
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
   [junit4]   2> 	... 3 more
   [junit4]   2> 820742 ERROR (OverseerAutoScalingTriggerThread-72309754993770505-dummy.host.com:8984_solr-n_0000000002) [n:dummy.host.com:8984_solr    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /autoscaling.json
   [junit4]   2> 	at org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
   [junit4]   2> 	at org.apache.solr.client.solrj.cloud.autoscaling.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:78)
   [junit4]   2> 	at org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:126)
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> Caused by: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /autoscaling.json
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:130)
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54)
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
   [junit4]   2> 	... 3 more
   [junit4]   2> 820742 ERROR (OverseerAutoScalingTriggerThread-72309754993770505-dummy.host.com:8984_solr-n_0000000002) [n:dummy.host.com:8984_solr    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /autoscaling.json
   [junit4]   2> 	at org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
   [junit4]   2> 	at org.apache.solr.client.solrj.cloud.autoscaling.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:78)
   [junit4]   2> 	at org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:126)
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> Caused by: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /autoscaling.json
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:130)
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54)
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
   [junit4]   2> 	... 3 more
   [junit4]   2> 820742 ERROR (OverseerAutoScalingTriggerThread-72309754993770505-dummy.host.com:8984_solr-n_0000000002) [n:dummy.host.com:8984_solr    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /autoscaling.json
   [junit4]   2> 	at org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
   [junit4]   2> 	at org.apache.solr.client.solrj.cloud.autoscaling.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:78)
   [junit4]   2> 	at org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:126)
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> Caused by: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /autoscaling.json
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:130)
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54)
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
   [junit4]   2> 	... 3 more
   [junit4]   2> 820742 ERROR (OverseerAutoScalingTriggerThread-72309754993770505-dummy.host.com:8984_solr-n_0000000002) [n:dummy.host.com:8984_solr    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /autoscaling.json
   [junit4]   2> 	at org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
   [junit4]   2> 	at org.apache.solr.client.solrj.cloud.autoscaling.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:78)
   [junit4]   2> 	at org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:126)
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> Caused by: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /autoscaling.json
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:130)
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54)
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
   [junit4]   2> 	... 3 more
   [junit4]   2> 820743 ERROR (OverseerAutoScalingTriggerThread-72309754993770505-dummy.host.com:8984_solr-n_0000000002) [n:dummy.host.com:8984_solr    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /autoscaling.json
   [junit4]   2> 	at org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
   [junit4]   2> 	at org.apache.solr.client.solrj.cloud.autoscaling.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:78)
   [junit4]   2> 	at org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:126)
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> Caused by: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /autoscaling.json
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:130)
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54)
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
   [junit4]   2> 	... 3 more
   [junit4]   2> 820743 ERROR (OverseerAutoScalingTriggerThread-72309754993770505-dummy.host.com:8984_solr-n_0000000002) [n:dummy.host.com:8984_solr    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /autoscaling.json
   [junit4]   2> 	at org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
   [junit4]   2> 	at org.apache.solr.client.solrj.cloud.autoscaling.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:78)
   [junit4]   2> 	at org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:126)
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> Caused by: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /autoscaling.json
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:130)
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54)
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
   [junit4]   2> 	... 3 more
   [junit4]   2> 820743 ERROR (OverseerAutoScalingTriggerThread-72309754993770505-dummy.host.com:8984_solr-n_0000000002) [n:dummy.host.com:8984_solr    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /autoscaling.json
   [junit4]   2> 	at org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
   [junit4]   2> 	at org.apache.solr.client.solrj.cloud.autoscaling.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:78)
   [junit4]   2> 	at org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:126)
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> Caused by: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /autoscaling.json
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:130)
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54)
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
   [junit4]   2> 	... 3 more
   [junit4]   2> 820744 ERROR (OverseerAutoScalingTriggerThread-72309754993770505-dummy.host.com:8984_solr-n_0000000002) [n:dummy.host.com:8984_solr    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /autoscaling.json
   [junit4]   2> 	at org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
   [junit4]   2> 	at org.apache.solr.client.solrj.cloud.autoscaling.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:78)
   [junit4]   2> 	at org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:126)
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> Caused by: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /autoscaling.json
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:130)
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54)
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
   [junit4]   2> 	... 3 more
   [junit4]   2> 820744 ERROR (OverseerAutoScalingTriggerThread-72309754993770505-dummy.host.com:8984_solr-n_0000000002) [n:dummy.host.com:8984_solr    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /autoscaling.json
   [junit4]   2> 	at org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
   [junit4]   2> 	at org.apache.solr.client.solrj.cloud.autoscaling.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:78)
   [junit4]   2> 	at org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:126)
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> Caused by: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /autoscaling.json
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:130)
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54)
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
   [junit4]   2> 	... 3 more
   [junit4]   2> 820744 ERROR (OverseerAutoScalingTriggerThread-72309754993770505-dummy.host.com:8984_solr-n_0000000002) [n:dummy.host.com:8984_solr    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /autoscaling.json
   [junit4]   2> 	at org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
   [junit4]   2> 	at org.apache.solr.client.solrj.cloud.autoscaling.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:78)
   [junit4]   2> 	at org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:126)
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> Caused by: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /autoscaling.json
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:130)
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54)
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
   [junit4]   2> 	... 3 more
   [junit4]   2> 820744 ERROR (OverseerAutoScalingTriggerThread-72309754993770505-dummy.host.com:8984_solr-n_0000000002) [n:dummy.host.com:8984_solr    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /autoscaling.json
   [junit4]   2> 	at org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
   [junit4]   2> 	at org.apache.solr.client.solrj.cloud.autoscaling.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:78)
   [junit4]   2> 	at org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:126)
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> Caused by: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /autoscaling.json
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:130)
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54)
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
   [junit4]   2> 	... 3 more
   [junit4]   2> 820745 ERROR (OverseerAutoScalingTriggerThread-72309754993770505-dummy.host.com:8984_solr-n_0000000002) [n:dummy.host.com:8984_solr    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /autoscaling.json
   [junit4]   2> 	at org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
   [junit4]   2> 	at org.apache.solr.client.solrj.cloud.autoscaling.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:78)
   [junit4]   2> 	at org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:126)
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> Caused by: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /autoscaling.json
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:130)
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54)
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
   [junit4]   2> 	... 3 more
   [junit4]   2> 820745 ERROR (OverseerAutoScalingTriggerThread-72309754993770505-dummy.host.com:8984_solr-n_0000000002) [n:dummy.host.com:8984_solr    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /autoscaling.json
   [junit4]   2> 	at org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
   [junit4]   2> 	at org.apache.solr.client.solrj.cloud.autoscaling.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:78)
   [junit4]   2> 	at org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:126)
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> Caused by: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /autoscaling.json
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:130)
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54)
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
   [junit4]   2> 	... 3 more
   [junit4]   2> 820745 ERROR (OverseerAutoScalingTriggerThread-72309754993770505-dummy.host.com:8984_solr-n_0000000002) [n:dummy.host.com:8984_solr    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /autoscaling.json
   [junit4]   2> 	at org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
   [junit4]   2> 	at org.apache.solr.client.solrj.cloud.autoscaling.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:78)
   [junit4]   2> 	at org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:126)
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> Caused by: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /autoscaling.json
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:130)
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54)
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
   [junit4]   2> 	... 3 more
   [junit4]   2> 820745 ERROR (OverseerAutoScalingTriggerThread-72309754993770505-dummy.host.com:8984_solr-n_0000000002) [n:dummy.host.com:8984_solr    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /autoscaling.json
   [junit4]   2> 	at org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
   [junit4]   2> 	at org.apache.solr.client.solrj.cloud.autoscaling.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:78)
   [junit4]   2> 	at org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:126)
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> Caused by: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /autoscaling.json
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:130)
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54)
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
   [junit4]   2> 	... 3 more
   [junit4]   2> 820745 ERROR (OverseerAutoScalingTriggerThread-72309754993770505-dummy.host.com:8984_solr-n_0000000002) [n:dummy

[...truncated too long message...]

ed by: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /autoscaling.json
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:130)
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54)
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
   [junit4]   2> 	... 3 more
   [junit4]   2> NOTE: reproduce with: ant test  -Dtestcase=TestLeaderElectionZkExpiry -Dtests.seed=DE13BEE2F3FCCC8F -Dtests.multiplier=2 -Dtests.slow=true -Dtests.locale=zh-HK -Dtests.timezone=America/Metlakatla -Dtests.asserts=true -Dtests.file.encoding=ISO-8859-1
   [junit4]   2> 927111 ERROR (OverseerAutoScalingTriggerThread-72309754993770505-dummy.host.com:8984_solr-n_0000000002) [n:dummy.host.com:8984_solr    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /autoscaling.json
   [junit4]   2> 	at org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
   [junit4]   2> 	at org.apache.solr.client.solrj.cloud.autoscaling.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:78)
   [junit4]   2> 	at org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:126)
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> Caused by: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /autoscaling.json
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:130)
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54)
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
   [junit4]   2> 	... 3 more
   [junit4]   2> 927112 ERROR (OverseerAutoScalingTriggerThread-72309754993770505-dummy.host.com:8984_solr-n_0000000002) [n:dummy.host.com:8984_solr    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /autoscaling.json
   [junit4]   2> 	at org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
   [junit4]   2> 	at org.apache.solr.client.solrj.cloud.autoscaling.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:78)
   [junit4]   2> 	at org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:126)
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> Caused by: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /autoscaling.json
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:130)
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54)
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340)
   [junit4]   2> 	at org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
   [junit4]   2> 	... 3 more
   [junit4] ERROR   0.00s J2 | TestLeaderElectionZkExpiry (suite) <<<
   [junit4]    > Throwable #1: java.lang.AssertionError: ObjectTracker found 1 object(s) that were not released!!! [Overseer]
   [junit4]    > org.apache.solr.common.util.ObjectReleaseTracker$ObjectTrackerException: org.apache.solr.cloud.Overseer
   [junit4]    > 	at org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
   [junit4]    > 	at org.apache.solr.cloud.Overseer.start(Overseer.java:545)
   [junit4]    > 	at org.apache.solr.cloud.OverseerElectionContext.runLeaderProcess(ElectionContext.java:850)
   [junit4]    > 	at org.apache.solr.cloud.LeaderElector.runIamLeaderProcess(LeaderElector.java:170)
   [junit4]    > 	at org.apache.solr.cloud.LeaderElector.checkIfIamLeader(LeaderElector.java:135)
   [junit4]    > 	at org.apache.solr.cloud.LeaderElector.joinElection(LeaderElector.java:307)
   [junit4]    > 	at org.apache.solr.cloud.LeaderElector.retryElection(LeaderElector.java:393)
   [junit4]    > 	at org.apache.solr.cloud.ZkController.rejoinOverseerElection(ZkController.java:2063)
   [junit4]    > 	at org.apache.solr.cloud.Overseer$ClusterStateUpdater.checkIfIamStillLeader(Overseer.java:331)
   [junit4]    > 	at java.lang.Thread.run(Thread.java:748)
   [junit4]    > 	at __randomizedtesting.SeedInfo.seed([DE13BEE2F3FCCC8F]:0)
   [junit4]    > 	at org.apache.solr.SolrTestCaseJ4.teardownTestCases(SolrTestCaseJ4.java:301)
   [junit4]    > 	at java.lang.Thread.run(Thread.java:748)Throwable #2: com.carrotsearch.randomizedtesting.ThreadLeakError: 1 thread leaked from SUITE scope at org.apache.solr.cloud.TestLeaderElectionZkExpiry: 
   [junit4]    >    1) Thread[id=3649, name=OverseerAutoScalingTriggerThread-72309754993770505-dummy.host.com:8984_solr-n_0000000002, state=RUNNABLE, group=Overseer autoscaling triggers]
   [junit4]    >         at java.io.PrintStream.write(PrintStream.java:480)
   [junit4]    >         at sun.nio.cs.StreamEncoder.writeBytes(StreamEncoder.java:221)
   [junit4]    >         at sun.nio.cs.StreamEncoder.implFlushBuffer(StreamEncoder.java:291)
   [junit4]    >         at sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:295)
   [junit4]    >         at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:141)
   [junit4]    >         at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:229)
   [junit4]    >         at org.apache.log4j.helpers.QuietWriter.flush(QuietWriter.java:59)
   [junit4]    >         at org.apache.log4j.WriterAppender.subAppend(WriterAppender.java:324)
   [junit4]    >         at org.apache.log4j.WriterAppender.append(WriterAppender.java:162)
   [junit4]    >         at org.apache.log4j.AppenderSkeleton.doAppend(AppenderSkeleton.java:251)
   [junit4]    >         at org.apache.log4j.helpers.AppenderAttachableImpl.appendLoopOnAppenders(AppenderAttachableImpl.java:66)
   [junit4]    >         at org.apache.log4j.Category.callAppenders(Category.java:206)
   [junit4]    >         at org.apache.log4j.Category.forcedLog(Category.java:391)
   [junit4]    >         at org.apache.log4j.Category.log(Category.java:856)
   [junit4]    >         at org.slf4j.impl.Log4jLoggerAdapter.error(Log4jLoggerAdapter.java:576)
   [junit4]    >         at org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:140)
   [junit4]    >         at java.lang.Thread.run(Thread.java:748)
   [junit4]    > 	at __randomizedtesting.SeedInfo.seed([DE13BEE2F3FCCC8F]:0)Throwable #3: com.carrotsearch.randomizedtesting.ThreadLeakError: There are still zombie threads that couldn't be terminated:
   [junit4]    >    1) Thread[id=3649, name=OverseerAutoScalingTriggerThread-72309754993770505-dummy.host.com:8984_solr-n_0000000002, state=RUNNABLE, group=Overseer autoscaling triggers]
   [junit4]    >         at java.io.PrintStream.write(PrintStream.java:480)
   [junit4]    >         at sun.nio.cs.StreamEncoder.writeBytes(StreamEncoder.java:221)
   [junit4]    >         at sun.nio.cs.StreamEncoder.implFlushBuffer(StreamEncoder.java:291)
   [junit4]    >         at sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:295)
   [junit4]    >         at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:141)
   [junit4]    >         at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:229)
   [junit4]    >         at org.apache.log4j.helpers.QuietWriter.flush(QuietWriter.java:59)
   [junit4]    >         at org.apache.log4j.WriterAppender.subAppend(WriterAppender.java:324)
   [junit4]    >         at org.apache.log4j.WriterAppender.append(WriterAppender.java:162)
   [junit4]    >         at org.apache.log4j.AppenderSkeleton.doAppend(AppenderSkeleton.java:251)
   [junit4]    >         at org.apache.log4j.helpers.AppenderAttachableImpl.appendLoopOnAppenders(AppenderAttachableImpl.java:66)
   [junit4]    >         at org.apache.log4j.Category.callAppenders(Category.java:206)
   [junit4]    >         at org.apache.log4j.Category.forcedLog(Category.java:391)
   [junit4]    >         at org.apache.log4j.Category.log(Category.java:856)
   [junit4]    >         at org.slf4j.impl.Log4jLoggerAdapter.error(Log4jLoggerAdapter.java:576)
   [junit4]    >         at org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:140)
   [junit4]    >         at java.lang.Thread.run(Thread.java:748)
   [junit4]    > 	at __randomizedtesting.SeedInfo.seed([DE13BEE2F3FCCC8F]:0)
   [junit4] Completed [126/783 (1!)] on J2 in 117.94s, 1 test, 1 failure, 2 errors <<< FAILURES!

[...truncated 51743 lines...]

[JENKINS] Lucene-Solr-Tests-7.3 - Build # 21 - Still Unstable

Posted by Apache Jenkins Server <je...@builds.apache.org>.
Build: https://builds.apache.org/job/Lucene-Solr-Tests-7.3/21/

18 tests failed.
FAILED:  org.apache.solr.handler.dataimport.TestZKPropertiesWriter.testZKPropertiesWriter

Error Message:


Stack Trace:
java.lang.NullPointerException
	at __randomizedtesting.SeedInfo.seed([24A13F61970004B0:6C2D4316BB572444]:0)
	at java.text.SimpleDateFormat.parse(SimpleDateFormat.java:1439)
	at java.text.DateFormat.parse(DateFormat.java:364)
	at org.apache.solr.handler.dataimport.TestZKPropertiesWriter.testZKPropertiesWriter(TestZKPropertiesWriter.java:130)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1737)
	at com.carrotsearch.randomizedtesting.RandomizedRunner$8.evaluate(RandomizedRunner.java:934)
	at com.carrotsearch.randomizedtesting.RandomizedRunner$9.evaluate(RandomizedRunner.java:970)
	at com.carrotsearch.randomizedtesting.RandomizedRunner$10.evaluate(RandomizedRunner.java:984)
	at com.carrotsearch.randomizedtesting.rules.SystemPropertiesRestoreRule$1.evaluate(SystemPropertiesRestoreRule.java:57)
	at org.apache.lucene.util.TestRuleSetupTeardownChained$1.evaluate(TestRuleSetupTeardownChained.java:49)
	at org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:45)
	at org.apache.lucene.util.TestRuleThreadAndTestName$1.evaluate(TestRuleThreadAndTestName.java:48)
	at org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:64)
	at org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:47)
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
	at com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:368)
	at com.carrotsearch.randomizedtesting.ThreadLeakControl.forkTimeoutingTask(ThreadLeakControl.java:817)
	at com.carrotsearch.randomizedtesting.ThreadLeakControl$3.evaluate(ThreadLeakControl.java:468)
	at com.carrotsearch.randomizedtesting.RandomizedRunner.runSingleTest(RandomizedRunner.java:943)
	at com.carrotsearch.randomizedtesting.RandomizedRunner$5.evaluate(RandomizedRunner.java:829)
	at com.carrotsearch.randomizedtesting.RandomizedRunner$6.evaluate(RandomizedRunner.java:879)
	at com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:890)
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
	at com.carrotsearch.randomizedtesting.rules.SystemPropertiesRestoreRule$1.evaluate(SystemPropertiesRestoreRule.java:57)
	at org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:45)
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
	at org.apache.lucene.util.TestRuleStoreClassName$1.evaluate(TestRuleStoreClassName.java:41)
	at com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
	at com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
	at org.apache.lucene.util.TestRuleAssertionsRequired$1.evaluate(TestRuleAssertionsRequired.java:53)
	at org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:47)
	at org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:64)
	at org.apache.lucene.util.TestRuleIgnoreTestSuites$1.evaluate(TestRuleIgnoreTestSuites.java:54)
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
	at com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:368)
	at java.lang.Thread.run(Thread.java:748)


FAILED:  org.apache.solr.ltr.TestLTROnSolrCloud.testSimpleQuery

Error Message:
Error from server at http://127.0.0.1:43474/solr: KeeperErrorCode = NoNode for /overseer/collection-queue-work/qnr-0000000000

Stack Trace:
org.apache.solr.client.solrj.impl.HttpSolrClient$RemoteSolrException: Error from server at http://127.0.0.1:43474/solr: KeeperErrorCode = NoNode for /overseer/collection-queue-work/qnr-0000000000
	at org.apache.solr.client.solrj.impl.HttpSolrClient.executeMethod(HttpSolrClient.java:643)
	at org.apache.solr.client.solrj.impl.HttpSolrClient.request(HttpSolrClient.java:255)
	at org.apache.solr.client.solrj.impl.HttpSolrClient.request(HttpSolrClient.java:244)
	at org.apache.solr.client.solrj.impl.LBHttpSolrClient.doRequest(LBHttpSolrClient.java:483)
	at org.apache.solr.client.solrj.impl.LBHttpSolrClient.request(LBHttpSolrClient.java:413)
	at org.apache.solr.client.solrj.impl.CloudSolrClient.sendRequest(CloudSolrClient.java:1105)
	at org.apache.solr.client.solrj.impl.CloudSolrClient.requestWithRetryOnStaleState(CloudSolrClient.java:885)
	at org.apache.solr.client.solrj.impl.CloudSolrClient.request(CloudSolrClient.java:818)
	at org.apache.solr.client.solrj.SolrRequest.process(SolrRequest.java:194)
	at org.apache.solr.client.solrj.SolrRequest.process(SolrRequest.java:211)
	at org.apache.solr.ltr.TestLTROnSolrCloud.createCollection(TestLTROnSolrCloud.java:227)
	at org.apache.solr.ltr.TestLTROnSolrCloud.setupSolrCluster(TestLTROnSolrCloud.java:208)
	at org.apache.solr.ltr.TestLTROnSolrCloud.setUp(TestLTROnSolrCloud.java:61)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1737)
	at com.carrotsearch.randomizedtesting.RandomizedRunner$9.evaluate(RandomizedRunner.java:968)
	at com.carrotsearch.randomizedtesting.RandomizedRunner$10.evaluate(RandomizedRunner.java:984)
	at com.carrotsearch.randomizedtesting.rules.SystemPropertiesRestoreRule$1.evaluate(SystemPropertiesRestoreRule.java:57)
	at org.apache.lucene.util.TestRuleSetupTeardownChained$1.evaluate(TestRuleSetupTeardownChained.java:49)
	at org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:45)
	at org.apache.lucene.util.TestRuleThreadAndTestName$1.evaluate(TestRuleThreadAndTestName.java:48)
	at org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:64)
	at org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:47)
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
	at com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:368)
	at com.carrotsearch.randomizedtesting.ThreadLeakControl.forkTimeoutingTask(ThreadLeakControl.java:817)
	at com.carrotsearch.randomizedtesting.ThreadLeakControl$3.evaluate(ThreadLeakControl.java:468)
	at com.carrotsearch.randomizedtesting.RandomizedRunner.runSingleTest(RandomizedRunner.java:943)
	at com.carrotsearch.randomizedtesting.RandomizedRunner$5.evaluate(RandomizedRunner.java:829)
	at com.carrotsearch.randomizedtesting.RandomizedRunner$6.evaluate(RandomizedRunner.java:879)
	at com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:890)
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
	at com.carrotsearch.randomizedtesting.rules.SystemPropertiesRestoreRule$1.evaluate(SystemPropertiesRestoreRule.java:57)
	at org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:45)
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
	at org.apache.lucene.util.TestRuleStoreClassName$1.evaluate(TestRuleStoreClassName.java:41)
	at com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
	at com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
	at org.apache.lucene.util.TestRuleAssertionsRequired$1.evaluate(TestRuleAssertionsRequired.java:53)
	at org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:47)
	at org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:64)
	at org.apache.lucene.util.TestRuleIgnoreTestSuites$1.evaluate(TestRuleIgnoreTestSuites.java:54)
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
	at com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:368)
	at java.lang.Thread.run(Thread.java:748)


FAILED:  junit.framework.TestSuite.org.apache.solr.ltr.TestLTROnSolrCloud

Error Message:
36 threads leaked from SUITE scope at org.apache.solr.ltr.TestLTROnSolrCloud:     1) Thread[id=133, name=zkConnectionManagerCallback-33-thread-1, state=WAITING, group=TGRP-TestLTROnSolrCloud]         at sun.misc.Unsafe.park(Native Method)         at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)         at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)         at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)         at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)         at java.lang.Thread.run(Thread.java:748)    2) Thread[id=157, name=zkConnectionManagerCallback-20-thread-1-processing-n:127.0.0.1:43474_solr-SendThread(127.0.0.1:37649), state=RUNNABLE, group=TGRP-TestLTROnSolrCloud]         at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)         at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)         at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:93)         at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)         at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)         at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:349)         at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1144)    3) Thread[id=95, name=qtp491470505-95, state=TIMED_WAITING, group=TGRP-TestLTROnSolrCloud]         at sun.misc.Unsafe.park(Native Method)         at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)         at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)         at org.eclipse.jetty.util.BlockingArrayQueue.poll(BlockingArrayQueue.java:392)         at org.eclipse.jetty.util.thread.QueuedThreadPool.idleJobPoll(QueuedThreadPool.java:600)         at org.eclipse.jetty.util.thread.QueuedThreadPool.access$800(QueuedThreadPool.java:49)         at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:663)         at java.lang.Thread.run(Thread.java:748)    4) Thread[id=166, name=ScheduledTrigger-64-thread-2, state=TIMED_WAITING, group=TGRP-TestLTROnSolrCloud]         at sun.misc.Unsafe.park(Native Method)         at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)         at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)         at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)         at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)         at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)         at java.lang.Thread.run(Thread.java:748)    5) Thread[id=86, name=ProcessThread(sid:0 cport:37649):, state=WAITING, group=TGRP-TestLTROnSolrCloud]         at sun.misc.Unsafe.park(Native Method)         at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)         at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)         at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)         at org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.java:123)    6) Thread[id=156, name=zkConnectionManagerCallback-25-thread-1-processing-n:127.0.0.1:43474_solr-EventThread, state=WAITING, group=TGRP-TestLTROnSolrCloud]         at sun.misc.Unsafe.park(Native Method)         at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)         at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)         at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)         at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:502)    7) Thread[id=162, name=OverseerAutoScalingTriggerThread-72312215869849610-127.0.0.1:43474_solr-n_0000000001, state=WAITING, group=Overseer autoscaling triggers]         at sun.misc.Unsafe.park(Native Method)         at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)         at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)         at org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:175)         at java.lang.Thread.run(Thread.java:748)    8) Thread[id=110, name=zkConnectionManagerCallback-20-thread-1, state=WAITING, group=TGRP-TestLTROnSolrCloud]         at sun.misc.Unsafe.park(Native Method)         at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)         at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)         at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)         at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)         at java.lang.Thread.run(Thread.java:748)    9) Thread[id=91, name=qtp491470505-91, state=RUNNABLE, group=TGRP-TestLTROnSolrCloud]         at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)         at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)         at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:93)         at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)         at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)         at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:101)         at org.eclipse.jetty.io.ManagedSelector$SelectorProducer.select(ManagedSelector.java:375)         at org.eclipse.jetty.io.ManagedSelector$SelectorProducer.produce(ManagedSelector.java:304)         at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:179)         at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.produce(EatWhatYouKill.java:140)         at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:131)         at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:382)         at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:708)         at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:626)         at java.lang.Thread.run(Thread.java:748)   10) Thread[id=103, name=Connection evictor, state=TIMED_WAITING, group=TGRP-TestLTROnSolrCloud]         at java.lang.Thread.sleep(Native Method)         at org.apache.http.impl.client.IdleConnectionEvictor$1.run(IdleConnectionEvictor.java:66)         at java.lang.Thread.run(Thread.java:748)   11) Thread[id=122, name=Thread-33, state=WAITING, group=TGRP-TestLTROnSolrCloud]         at java.lang.Object.wait(Native Method)         at java.lang.Object.wait(Object.java:502)         at org.apache.solr.core.CloserThread.run(CoreContainer.java:1725)   12) Thread[id=84, name=SessionTracker, state=TIMED_WAITING, group=TGRP-TestLTROnSolrCloud]         at java.lang.Object.wait(Native Method)         at org.apache.zookeeper.server.SessionTrackerImpl.run(SessionTrackerImpl.java:147)   13) Thread[id=165, name=OverseerThreadFactory-66-thread-1, state=WAITING, group=Overseer collection creation process.]         at sun.misc.Unsafe.park(Native Method)         at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)         at java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:458)         at java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:362)         at java.util.concurrent.SynchronousQueue.take(SynchronousQueue.java:924)         at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)         at java.lang.Thread.run(Thread.java:748)   14) Thread[id=134, name=Scheduler-327992176, state=TIMED_WAITING, group=TGRP-TestLTROnSolrCloud]         at sun.misc.Unsafe.park(Native Method)         at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)         at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)         at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)         at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)         at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)         at java.lang.Thread.run(Thread.java:748)   15) Thread[id=158, name=zkConnectionManagerCallback-20-thread-1-processing-n:127.0.0.1:43474_solr-EventThread, state=WAITING, group=TGRP-TestLTROnSolrCloud]         at sun.misc.Unsafe.park(Native Method)         at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)         at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)         at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)         at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:502)   16) Thread[id=98, name=qtp491470505-98, state=RUNNABLE, group=TGRP-TestLTROnSolrCloud]         at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)         at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)         at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:93)         at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)         at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)         at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:101)         at org.eclipse.jetty.io.ManagedSelector$SelectorProducer.select(ManagedSelector.java:375)         at org.eclipse.jetty.io.ManagedSelector$SelectorProducer.produce(ManagedSelector.java:304)         at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:179)         at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.produce(EatWhatYouKill.java:140)         at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:131)         at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:382)         at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:708)         at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:626)         at java.lang.Thread.run(Thread.java:748)   17) Thread[id=161, name=OverseerCollectionConfigSetProcessor-72312215869849610-127.0.0.1:43474_solr-n_0000000001, state=TIMED_WAITING, group=Overseer collection creation process.]         at sun.misc.Unsafe.park(Native Method)         at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)         at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)         at org.apache.solr.cloud.ZkDistributedQueue.peekElements(ZkDistributedQueue.java:463)         at org.apache.solr.cloud.OverseerTaskQueue.peekTopN(OverseerTaskQueue.java:243)         at org.apache.solr.cloud.OverseerTaskProcessor.run(OverseerTaskProcessor.java:228)         at java.lang.Thread.run(Thread.java:748)   18) Thread[id=93, name=qtp491470505-93-acceptor-0@45856a7f-ServerConnector@2529a2c{HTTP/1.1,[http/1.1]}{127.0.0.1:43474}, state=RUNNABLE, group=TGRP-TestLTROnSolrCloud]         at sun.nio.ch.ServerSocketChannelImpl.accept0(Native Method)         at sun.nio.ch.ServerSocketChannelImpl.accept(ServerSocketChannelImpl.java:422)         at sun.nio.ch.ServerSocketChannelImpl.accept(ServerSocketChannelImpl.java:250)         at org.eclipse.jetty.server.ServerConnector.accept(ServerConnector.java:379)         at org.eclipse.jetty.server.AbstractConnector$Acceptor.run(AbstractConnector.java:638)         at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:708)         at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:626)         at java.lang.Thread.run(Thread.java:748)   19) Thread[id=99, name=Scheduler-1782389197, state=TIMED_WAITING, group=TGRP-TestLTROnSolrCloud]         at sun.misc.Unsafe.park(Native Method)         at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)         at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)         at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)         at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)         at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)         at java.lang.Thread.run(Thread.java:748)   20) Thread[id=94, name=qtp491470505-94, state=TIMED_WAITING, group=TGRP-TestLTROnSolrCloud]         at sun.misc.Unsafe.park(Native Method)         at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)         at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2163)         at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.reservedWait(ReservedThreadExecutor.java:308)         at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:373)         at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:708)         at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:626)         at java.lang.Thread.run(Thread.java:748)   21) Thread[id=160, name=OverseerStateUpdate-72312215869849610-127.0.0.1:43474_solr-n_0000000001, state=TIMED_WAITING, group=Overseer state updater.]         at sun.misc.Unsafe.park(Native Method)         at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)         at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)         at org.apache.solr.cloud.ZkDistributedQueue.peekElements(ZkDistributedQueue.java:463)         at org.apache.solr.cloud.Overseer$ClusterStateUpdater.run(Overseer.java:205)         at java.lang.Thread.run(Thread.java:748)   22) Thread[id=164, name=ScheduledTrigger-64-thread-1, state=WAITING, group=TGRP-TestLTROnSolrCloud]         at sun.misc.Unsafe.park(Native Method)         at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)         at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)         at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1088)         at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)         at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)         at java.lang.Thread.run(Thread.java:748)   23) Thread[id=92, name=qtp491470505-92, state=TIMED_WAITING, group=TGRP-TestLTROnSolrCloud]         at sun.misc.Unsafe.park(Native Method)         at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)         at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)         at org.eclipse.jetty.util.BlockingArrayQueue.poll(BlockingArrayQueue.java:392)         at org.eclipse.jetty.util.thread.QueuedThreadPool.idleJobPoll(QueuedThreadPool.java:600)         at org.eclipse.jetty.util.thread.QueuedThreadPool.access$800(QueuedThreadPool.java:49)         at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:663)         at java.lang.Thread.run(Thread.java:748)   24) Thread[id=83, name=NIOServerCxn.Factory:0.0.0.0/0.0.0.0:0, state=RUNNABLE, group=TGRP-TestLTROnSolrCloud]         at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)         at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)         at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:93)         at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)         at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)         at org.apache.zookeeper.server.NIOServerCnxnFactory.run(NIOServerCnxnFactory.java:196)         at java.lang.Thread.run(Thread.java:748)   25) Thread[id=115, name=zkConnectionManagerCallback-25-thread-1, state=WAITING, group=TGRP-TestLTROnSolrCloud]         at sun.misc.Unsafe.park(Native Method)         at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)         at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)         at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)         at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)         at java.lang.Thread.run(Thread.java:748)   26) Thread[id=97, name=qtp491470505-97, state=TIMED_WAITING, group=TGRP-TestLTROnSolrCloud]         at sun.misc.Unsafe.park(Native Method)         at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)         at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)         at org.eclipse.jetty.util.BlockingArrayQueue.poll(BlockingArrayQueue.java:392)         at org.eclipse.jetty.util.thread.QueuedThreadPool.idleJobPoll(QueuedThreadPool.java:600)         at org.eclipse.jetty.util.thread.QueuedThreadPool.access$800(QueuedThreadPool.java:49)         at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:663)         at java.lang.Thread.run(Thread.java:748)   27) Thread[id=151, name=zkConnectionManagerCallback-33-thread-1-EventThread, state=WAITING, group=TGRP-TestLTROnSolrCloud]         at sun.misc.Unsafe.park(Native Method)         at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)         at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)         at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)         at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:502)   28) Thread[id=127, name=Connection evictor, state=TIMED_WAITING, group=TGRP-TestLTROnSolrCloud]         at java.lang.Thread.sleep(Native Method)         at org.apache.http.impl.client.IdleConnectionEvictor$1.run(IdleConnectionEvictor.java:66)         at java.lang.Thread.run(Thread.java:748)   29) Thread[id=82, name=Thread-24, state=WAITING, group=TGRP-TestLTROnSolrCloud]         at java.lang.Object.wait(Native Method)         at java.lang.Thread.join(Thread.java:1252)         at java.lang.Thread.join(Thread.java:1326)         at org.apache.zookeeper.server.NIOServerCnxnFactory.join(NIOServerCnxnFactory.java:313)         at org.apache.solr.cloud.ZkTestServer$ZKServerMain.runFromConfig(ZkTestServer.java:310)         at org.apache.solr.cloud.ZkTestServer$2.run(ZkTestServer.java:491)   30) Thread[id=150, name=zkConnectionManagerCallback-33-thread-1-SendThread(127.0.0.1:37649), state=RUNNABLE, group=TGRP-TestLTROnSolrCloud]         at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)         at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)         at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:93)         at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)         at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)         at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:349)         at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1144)   31) Thread[id=167, name=ScheduledTrigger-64-thread-3, state=WAITING, group=TGRP-TestLTROnSolrCloud]         at sun.misc.Unsafe.park(Native Method)         at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)         at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)         at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1088)         at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)         at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)         at java.lang.Thread.run(Thread.java:748)   32) Thread[id=112, name=Connection evictor, state=TIMED_WAITING, group=TGRP-TestLTROnSolrCloud]         at java.lang.Thread.sleep(Native Method)         at org.apache.http.impl.client.IdleConnectionEvictor$1.run(IdleConnectionEvictor.java:66)         at java.lang.Thread.run(Thread.java:748)   33) Thread[id=104, name=Connection evictor, state=TIMED_WAITING, group=TGRP-TestLTROnSolrCloud]         at java.lang.Thread.sleep(Native Method)         at org.apache.http.impl.client.IdleConnectionEvictor$1.run(IdleConnectionEvictor.java:66)         at java.lang.Thread.run(Thread.java:748)   34) Thread[id=96, name=qtp491470505-96, state=TIMED_WAITING, group=TGRP-TestLTROnSolrCloud]         at sun.misc.Unsafe.park(Native Method)         at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)         at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2163)         at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.reservedWait(ReservedThreadExecutor.java:308)         at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:373)         at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:708)         at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:626)         at java.lang.Thread.run(Thread.java:748)   35) Thread[id=155, name=zkConnectionManagerCallback-25-thread-1-processing-n:127.0.0.1:43474_solr-SendThread(127.0.0.1:37649), state=RUNNABLE, group=TGRP-TestLTROnSolrCloud]         at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)         at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)         at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:93)         at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)         at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)         at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:349)         at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1144)   36) Thread[id=168, name=ScheduledTrigger-64-thread-4, state=WAITING, group=TGRP-TestLTROnSolrCloud]         at sun.misc.Unsafe.park(Native Method)         at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)         at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)         at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1088)         at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)         at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)         at java.lang.Thread.run(Thread.java:748)

Stack Trace:
com.carrotsearch.randomizedtesting.ThreadLeakError: 36 threads leaked from SUITE scope at org.apache.solr.ltr.TestLTROnSolrCloud: 
   1) Thread[id=133, name=zkConnectionManagerCallback-33-thread-1, state=WAITING, group=TGRP-TestLTROnSolrCloud]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
        at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
        at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
        at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
   2) Thread[id=157, name=zkConnectionManagerCallback-20-thread-1-processing-n:127.0.0.1:43474_solr-SendThread(127.0.0.1:37649), state=RUNNABLE, group=TGRP-TestLTROnSolrCloud]
        at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
        at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
        at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:93)
        at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)
        at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
        at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:349)
        at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1144)
   3) Thread[id=95, name=qtp491470505-95, state=TIMED_WAITING, group=TGRP-TestLTROnSolrCloud]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
        at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
        at org.eclipse.jetty.util.BlockingArrayQueue.poll(BlockingArrayQueue.java:392)
        at org.eclipse.jetty.util.thread.QueuedThreadPool.idleJobPoll(QueuedThreadPool.java:600)
        at org.eclipse.jetty.util.thread.QueuedThreadPool.access$800(QueuedThreadPool.java:49)
        at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:663)
        at java.lang.Thread.run(Thread.java:748)
   4) Thread[id=166, name=ScheduledTrigger-64-thread-2, state=TIMED_WAITING, group=TGRP-TestLTROnSolrCloud]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
        at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
        at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)
        at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
        at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
   5) Thread[id=86, name=ProcessThread(sid:0 cport:37649):, state=WAITING, group=TGRP-TestLTROnSolrCloud]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
        at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
        at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
        at org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.java:123)
   6) Thread[id=156, name=zkConnectionManagerCallback-25-thread-1-processing-n:127.0.0.1:43474_solr-EventThread, state=WAITING, group=TGRP-TestLTROnSolrCloud]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
        at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
        at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
        at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:502)
   7) Thread[id=162, name=OverseerAutoScalingTriggerThread-72312215869849610-127.0.0.1:43474_solr-n_0000000001, state=WAITING, group=Overseer autoscaling triggers]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
        at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
        at org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:175)
        at java.lang.Thread.run(Thread.java:748)
   8) Thread[id=110, name=zkConnectionManagerCallback-20-thread-1, state=WAITING, group=TGRP-TestLTROnSolrCloud]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
        at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
        at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
        at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
   9) Thread[id=91, name=qtp491470505-91, state=RUNNABLE, group=TGRP-TestLTROnSolrCloud]
        at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
        at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
        at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:93)
        at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)
        at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
        at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:101)
        at org.eclipse.jetty.io.ManagedSelector$SelectorProducer.select(ManagedSelector.java:375)
        at org.eclipse.jetty.io.ManagedSelector$SelectorProducer.produce(ManagedSelector.java:304)
        at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:179)
        at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.produce(EatWhatYouKill.java:140)
        at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:131)
        at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:382)
        at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:708)
        at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:626)
        at java.lang.Thread.run(Thread.java:748)
  10) Thread[id=103, name=Connection evictor, state=TIMED_WAITING, group=TGRP-TestLTROnSolrCloud]
        at java.lang.Thread.sleep(Native Method)
        at org.apache.http.impl.client.IdleConnectionEvictor$1.run(IdleConnectionEvictor.java:66)
        at java.lang.Thread.run(Thread.java:748)
  11) Thread[id=122, name=Thread-33, state=WAITING, group=TGRP-TestLTROnSolrCloud]
        at java.lang.Object.wait(Native Method)
        at java.lang.Object.wait(Object.java:502)
        at org.apache.solr.core.CloserThread.run(CoreContainer.java:1725)
  12) Thread[id=84, name=SessionTracker, state=TIMED_WAITING, group=TGRP-TestLTROnSolrCloud]
        at java.lang.Object.wait(Native Method)
        at org.apache.zookeeper.server.SessionTrackerImpl.run(SessionTrackerImpl.java:147)
  13) Thread[id=165, name=OverseerThreadFactory-66-thread-1, state=WAITING, group=Overseer collection creation process.]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
        at java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:458)
        at java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:362)
        at java.util.concurrent.SynchronousQueue.take(SynchronousQueue.java:924)
        at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
  14) Thread[id=134, name=Scheduler-327992176, state=TIMED_WAITING, group=TGRP-TestLTROnSolrCloud]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
        at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
        at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)
        at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
        at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
  15) Thread[id=158, name=zkConnectionManagerCallback-20-thread-1-processing-n:127.0.0.1:43474_solr-EventThread, state=WAITING, group=TGRP-TestLTROnSolrCloud]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
        at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
        at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
        at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:502)
  16) Thread[id=98, name=qtp491470505-98, state=RUNNABLE, group=TGRP-TestLTROnSolrCloud]
        at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
        at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
        at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:93)
        at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)
        at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
        at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:101)
        at org.eclipse.jetty.io.ManagedSelector$SelectorProducer.select(ManagedSelector.java:375)
        at org.eclipse.jetty.io.ManagedSelector$SelectorProducer.produce(ManagedSelector.java:304)
        at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:179)
        at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.produce(EatWhatYouKill.java:140)
        at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:131)
        at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:382)
        at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:708)
        at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:626)
        at java.lang.Thread.run(Thread.java:748)
  17) Thread[id=161, name=OverseerCollectionConfigSetProcessor-72312215869849610-127.0.0.1:43474_solr-n_0000000001, state=TIMED_WAITING, group=Overseer collection creation process.]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
        at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
        at org.apache.solr.cloud.ZkDistributedQueue.peekElements(ZkDistributedQueue.java:463)
        at org.apache.solr.cloud.OverseerTaskQueue.peekTopN(OverseerTaskQueue.java:243)
        at org.apache.solr.cloud.OverseerTaskProcessor.run(OverseerTaskProcessor.java:228)
        at java.lang.Thread.run(Thread.java:748)
  18) Thread[id=93, name=qtp491470505-93-acceptor-0@45856a7f-ServerConnector@2529a2c{HTTP/1.1,[http/1.1]}{127.0.0.1:43474}, state=RUNNABLE, group=TGRP-TestLTROnSolrCloud]
        at sun.nio.ch.ServerSocketChannelImpl.accept0(Native Method)
        at sun.nio.ch.ServerSocketChannelImpl.accept(ServerSocketChannelImpl.java:422)
        at sun.nio.ch.ServerSocketChannelImpl.accept(ServerSocketChannelImpl.java:250)
        at org.eclipse.jetty.server.ServerConnector.accept(ServerConnector.java:379)
        at org.eclipse.jetty.server.AbstractConnector$Acceptor.run(AbstractConnector.java:638)
        at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:708)
        at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:626)
        at java.lang.Thread.run(Thread.java:748)
  19) Thread[id=99, name=Scheduler-1782389197, state=TIMED_WAITING, group=TGRP-TestLTROnSolrCloud]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
        at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
        at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)
        at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
        at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
  20) Thread[id=94, name=qtp491470505-94, state=TIMED_WAITING, group=TGRP-TestLTROnSolrCloud]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
        at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2163)
        at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.reservedWait(ReservedThreadExecutor.java:308)
        at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:373)
        at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:708)
        at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:626)
        at java.lang.Thread.run(Thread.java:748)
  21) Thread[id=160, name=OverseerStateUpdate-72312215869849610-127.0.0.1:43474_solr-n_0000000001, state=TIMED_WAITING, group=Overseer state updater.]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
        at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
        at org.apache.solr.cloud.ZkDistributedQueue.peekElements(ZkDistributedQueue.java:463)
        at org.apache.solr.cloud.Overseer$ClusterStateUpdater.run(Overseer.java:205)
        at java.lang.Thread.run(Thread.java:748)
  22) Thread[id=164, name=ScheduledTrigger-64-thread-1, state=WAITING, group=TGRP-TestLTROnSolrCloud]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
        at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
        at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1088)
        at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
        at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
  23) Thread[id=92, name=qtp491470505-92, state=TIMED_WAITING, group=TGRP-TestLTROnSolrCloud]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
        at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
        at org.eclipse.jetty.util.BlockingArrayQueue.poll(BlockingArrayQueue.java:392)
        at org.eclipse.jetty.util.thread.QueuedThreadPool.idleJobPoll(QueuedThreadPool.java:600)
        at org.eclipse.jetty.util.thread.QueuedThreadPool.access$800(QueuedThreadPool.java:49)
        at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:663)
        at java.lang.Thread.run(Thread.java:748)
  24) Thread[id=83, name=NIOServerCxn.Factory:0.0.0.0/0.0.0.0:0, state=RUNNABLE, group=TGRP-TestLTROnSolrCloud]
        at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
        at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
        at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:93)
        at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)
        at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
        at org.apache.zookeeper.server.NIOServerCnxnFactory.run(NIOServerCnxnFactory.java:196)
        at java.lang.Thread.run(Thread.java:748)
  25) Thread[id=115, name=zkConnectionManagerCallback-25-thread-1, state=WAITING, group=TGRP-TestLTROnSolrCloud]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
        at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
        at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
        at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
  26) Thread[id=97, name=qtp491470505-97, state=TIMED_WAITING, group=TGRP-TestLTROnSolrCloud]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
        at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
        at org.eclipse.jetty.util.BlockingArrayQueue.poll(BlockingArrayQueue.java:392)
        at org.eclipse.jetty.util.thread.QueuedThreadPool.idleJobPoll(QueuedThreadPool.java:600)
        at org.eclipse.jetty.util.thread.QueuedThreadPool.access$800(QueuedThreadPool.java:49)
        at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:663)
        at java.lang.Thread.run(Thread.java:748)
  27) Thread[id=151, name=zkConnectionManagerCallback-33-thread-1-EventThread, state=WAITING, group=TGRP-TestLTROnSolrCloud]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
        at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
        at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
        at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:502)
  28) Thread[id=127, name=Connection evictor, state=TIMED_WAITING, group=TGRP-TestLTROnSolrCloud]
        at java.lang.Thread.sleep(Native Method)
        at org.apache.http.impl.client.IdleConnectionEvictor$1.run(IdleConnectionEvictor.java:66)
        at java.lang.Thread.run(Thread.java:748)
  29) Thread[id=82, name=Thread-24, state=WAITING, group=TGRP-TestLTROnSolrCloud]
        at java.lang.Object.wait(Native Method)
        at java.lang.Thread.join(Thread.java:1252)
        at java.lang.Thread.join(Thread.java:1326)
        at org.apache.zookeeper.server.NIOServerCnxnFactory.join(NIOServerCnxnFactory.java:313)
        at org.apache.solr.cloud.ZkTestServer$ZKServerMain.runFromConfig(ZkTestServer.java:310)
        at org.apache.solr.cloud.ZkTestServer$2.run(ZkTestServer.java:491)
  30) Thread[id=150, name=zkConnectionManagerCallback-33-thread-1-SendThread(127.0.0.1:37649), state=RUNNABLE, group=TGRP-TestLTROnSolrCloud]
        at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
        at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
        at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:93)
        at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)
        at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
        at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:349)
        at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1144)
  31) Thread[id=167, name=ScheduledTrigger-64-thread-3, state=WAITING, group=TGRP-TestLTROnSolrCloud]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
        at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
        at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1088)
        at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
        at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
  32) Thread[id=112, name=Connection evictor, state=TIMED_WAITING, group=TGRP-TestLTROnSolrCloud]
        at java.lang.Thread.sleep(Native Method)
        at org.apache.http.impl.client.IdleConnectionEvictor$1.run(IdleConnectionEvictor.java:66)
        at java.lang.Thread.run(Thread.java:748)
  33) Thread[id=104, name=Connection evictor, state=TIMED_WAITING, group=TGRP-TestLTROnSolrCloud]
        at java.lang.Thread.sleep(Native Method)
        at org.apache.http.impl.client.IdleConnectionEvictor$1.run(IdleConnectionEvictor.java:66)
        at java.lang.Thread.run(Thread.java:748)
  34) Thread[id=96, name=qtp491470505-96, state=TIMED_WAITING, group=TGRP-TestLTROnSolrCloud]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
        at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2163)
        at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.reservedWait(ReservedThreadExecutor.java:308)
        at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:373)
        at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:708)
        at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:626)
        at java.lang.Thread.run(Thread.java:748)
  35) Thread[id=155, name=zkConnectionManagerCallback-25-thread-1-processing-n:127.0.0.1:43474_solr-SendThread(127.0.0.1:37649), state=RUNNABLE, group=TGRP-TestLTROnSolrCloud]
        at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
        at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
        at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:93)
        at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)
        at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
        at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:349)
        at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1144)
  36) Thread[id=168, name=ScheduledTrigger-64-thread-4, state=WAITING, group=TGRP-TestLTROnSolrCloud]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
        at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
        at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1088)
        at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
        at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
	at __randomizedtesting.SeedInfo.seed([7CF1C0CA1BE6DD13]:0)


FAILED:  junit.framework.TestSuite.org.apache.solr.ltr.TestLTROnSolrCloud

Error Message:
There are still zombie threads that couldn't be terminated:    1) Thread[id=115, name=zkConnectionManagerCallback-25-thread-1, state=WAITING, group=TGRP-TestLTROnSolrCloud]         at sun.misc.Unsafe.park(Native Method)         at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)         at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)         at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)         at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)         at java.lang.Thread.run(Thread.java:748)    2) Thread[id=133, name=zkConnectionManagerCallback-33-thread-1, state=WAITING, group=TGRP-TestLTROnSolrCloud]         at sun.misc.Unsafe.park(Native Method)         at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)         at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)         at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)         at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)         at java.lang.Thread.run(Thread.java:748)    3) Thread[id=157, name=zkConnectionManagerCallback-20-thread-1-processing-n:127.0.0.1:43474_solr-SendThread(127.0.0.1:37649), state=TIMED_WAITING, group=TGRP-TestLTROnSolrCloud]         at java.lang.Thread.sleep(Native Method)         at org.apache.zookeeper.client.StaticHostProvider.next(StaticHostProvider.java:105)         at org.apache.zookeeper.ClientCnxn$SendThread.startConnect(ClientCnxn.java:1000)         at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1063)    4) Thread[id=166, name=ScheduledTrigger-64-thread-2, state=WAITING, group=TGRP-TestLTROnSolrCloud]         at sun.misc.Unsafe.park(Native Method)         at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)         at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)         at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1088)         at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)         at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)         at java.lang.Thread.run(Thread.java:748)    5) Thread[id=110, name=zkConnectionManagerCallback-20-thread-1, state=WAITING, group=TGRP-TestLTROnSolrCloud]         at sun.misc.Unsafe.park(Native Method)         at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)         at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)         at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)         at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)         at java.lang.Thread.run(Thread.java:748)    6) Thread[id=150, name=zkConnectionManagerCallback-33-thread-1-SendThread(127.0.0.1:37649), state=TIMED_WAITING, group=TGRP-TestLTROnSolrCloud]         at java.lang.Thread.sleep(Native Method)         at org.apache.zookeeper.client.StaticHostProvider.next(StaticHostProvider.java:105)         at org.apache.zookeeper.ClientCnxn$SendThread.startConnect(ClientCnxn.java:1000)         at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1063)    7) Thread[id=91, name=qtp491470505-91, state=RUNNABLE, group=TGRP-TestLTROnSolrCloud]         at sun.nio.ch.EPollArrayWrapper.interrupt(Native Method)         at sun.nio.ch.EPollArrayWrapper.interrupt(EPollArrayWrapper.java:317)         at sun.nio.ch.EPollSelectorImpl.wakeup(EPollSelectorImpl.java:207)         at java.nio.channels.spi.AbstractSelector$1.interrupt(AbstractSelector.java:213)         at java.nio.channels.spi.AbstractSelector.begin(AbstractSelector.java:219)         at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:92)         at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)         at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)         at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:101)         at org.eclipse.jetty.io.ManagedSelector$SelectorProducer.select(ManagedSelector.java:375)         at org.eclipse.jetty.io.ManagedSelector$SelectorProducer.produce(ManagedSelector.java:304)         at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:179)         at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.produce(EatWhatYouKill.java:140)         at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:131)         at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:382)         at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:708)         at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:626)         at java.lang.Thread.run(Thread.java:748)    8) Thread[id=122, name=Thread-33, state=WAITING, group=TGRP-TestLTROnSolrCloud]         at java.lang.Object.wait(Native Method)         at java.lang.Object.wait(Object.java:502)         at org.apache.solr.core.CloserThread.run(CoreContainer.java:1725)    9) Thread[id=167, name=ScheduledTrigger-64-thread-3, state=WAITING, group=TGRP-TestLTROnSolrCloud]         at sun.misc.Unsafe.park(Native Method)         at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)         at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)         at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1088)         at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)         at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)         at java.lang.Thread.run(Thread.java:748)   10) Thread[id=134, name=Scheduler-327992176, state=WAITING, group=TGRP-TestLTROnSolrCloud]         at sun.misc.Unsafe.park(Native Method)         at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)         at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)         at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1081)         at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)         at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)         at java.lang.Thread.run(Thread.java:748)   11) Thread[id=98, name=qtp491470505-98, state=RUNNABLE, group=TGRP-TestLTROnSolrCloud]         at sun.nio.ch.EPollArrayWrapper.interrupt(Native Method)         at sun.nio.ch.EPollArrayWrapper.interrupt(EPollArrayWrapper.java:317)         at sun.nio.ch.EPollSelectorImpl.wakeup(EPollSelectorImpl.java:207)         at java.nio.channels.spi.AbstractSelector$1.interrupt(AbstractSelector.java:213)         at java.nio.channels.spi.AbstractSelector.begin(AbstractSelector.java:219)         at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:92)         at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)         at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)         at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:101)         at org.eclipse.jetty.io.ManagedSelector$SelectorProducer.select(ManagedSelector.java:375)         at org.eclipse.jetty.io.ManagedSelector$SelectorProducer.produce(ManagedSelector.java:304)         at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:179)         at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.produce(EatWhatYouKill.java:140)         at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:131)         at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:382)         at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:708)         at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:626)         at java.lang.Thread.run(Thread.java:748)   12) Thread[id=99, name=Scheduler-1782389197, state=TIMED_WAITING, group=TGRP-TestLTROnSolrCloud]         at sun.misc.Unsafe.park(Native Method)         at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)         at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)         at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)         at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)         at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)         at java.lang.Thread.run(Thread.java:748)   13) Thread[id=94, name=qtp491470505-94, state=TIMED_WAITING, group=TGRP-TestLTROnSolrCloud]         at sun.misc.Unsafe.park(Native Method)         at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)         at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2163)         at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.reservedWait(ReservedThreadExecutor.java:308)         at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:373)         at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:708)         at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:626)         at java.lang.Thread.run(Thread.java:748)   14) Thread[id=96, name=qtp491470505-96, state=TIMED_WAITING, group=TGRP-TestLTROnSolrCloud]         at sun.misc.Unsafe.park(Native Method)         at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)         at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2163)         at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.reservedWait(ReservedThreadExecutor.java:308)         at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:373)         at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:708)         at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:626)         at java.lang.Thread.run(Thread.java:748)   15) Thread[id=155, name=zkConnectionManagerCallback-25-thread-1-processing-n:127.0.0.1:43474_solr-SendThread(127.0.0.1:37649), state=TIMED_WAITING, group=TGRP-TestLTROnSolrCloud]         at java.lang.Thread.sleep(Native Method)         at org.apache.zookeeper.client.StaticHostProvider.next(StaticHostProvider.java:105)         at org.apache.zookeeper.ClientCnxn$SendThread.startConnect(ClientCnxn.java:1000)         at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1063)   16) Thread[id=164, name=ScheduledTrigger-64-thread-1, state=TIMED_WAITING, group=TGRP-TestLTROnSolrCloud]         at sun.misc.Unsafe.park(Native Method)         at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)         at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)         at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)         at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)         at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)         at java.lang.Thread.run(Thread.java:748)   17) Thread[id=168, name=ScheduledTrigger-64-thread-4, state=WAITING, group=TGRP-TestLTROnSolrCloud]         at sun.misc.Unsafe.park(Native Method)         at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)         at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)         at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1088)         at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)         at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)         at java.lang.Thread.run(Thread.java:748)

Stack Trace:
com.carrotsearch.randomizedtesting.ThreadLeakError: There are still zombie threads that couldn't be terminated:
   1) Thread[id=115, name=zkConnectionManagerCallback-25-thread-1, state=WAITING, group=TGRP-TestLTROnSolrCloud]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
        at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
        at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
        at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
   2) Thread[id=133, name=zkConnectionManagerCallback-33-thread-1, state=WAITING, group=TGRP-TestLTROnSolrCloud]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
        at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
        at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
        at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
   3) Thread[id=157, name=zkConnectionManagerCallback-20-thread-1-processing-n:127.0.0.1:43474_solr-SendThread(127.0.0.1:37649), state=TIMED_WAITING, group=TGRP-TestLTROnSolrCloud]
        at java.lang.Thread.sleep(Native Method)
        at org.apache.zookeeper.client.StaticHostProvider.next(StaticHostProvider.java:105)
        at org.apache.zookeeper.ClientCnxn$SendThread.startConnect(ClientCnxn.java:1000)
        at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1063)
   4) Thread[id=166, name=ScheduledTrigger-64-thread-2, state=WAITING, group=TGRP-TestLTROnSolrCloud]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
        at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
        at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1088)
        at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
        at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
   5) Thread[id=110, name=zkConnectionManagerCallback-20-thread-1, state=WAITING, group=TGRP-TestLTROnSolrCloud]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
        at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
        at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
        at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
   6) Thread[id=150, name=zkConnectionManagerCallback-33-thread-1-SendThread(127.0.0.1:37649), state=TIMED_WAITING, group=TGRP-TestLTROnSolrCloud]
        at java.lang.Thread.sleep(Native Method)
        at org.apache.zookeeper.client.StaticHostProvider.next(StaticHostProvider.java:105)
        at org.apache.zookeeper.ClientCnxn$SendThread.startConnect(ClientCnxn.java:1000)
        at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1063)
   7) Thread[id=91, name=qtp491470505-91, state=RUNNABLE, group=TGRP-TestLTROnSolrCloud]
        at sun.nio.ch.EPollArrayWrapper.interrupt(Native Method)
        at sun.nio.ch.EPollArrayWrapper.interrupt(EPollArrayWrapper.java:317)
        at sun.nio.ch.EPollSelectorImpl.wakeup(EPollSelectorImpl.java:207)
        at java.nio.channels.spi.AbstractSelector$1.interrupt(AbstractSelector.java:213)
        at java.nio.channels.spi.AbstractSelector.begin(AbstractSelector.java:219)
        at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:92)
        at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)
        at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
        at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:101)
        at org.eclipse.jetty.io.ManagedSelector$SelectorProducer.select(ManagedSelector.java:375)
        at org.eclipse.jetty.io.ManagedSelector$SelectorProducer.produce(ManagedSelector.java:304)
        at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:179)
        at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.produce(EatWhatYouKill.java:140)
        at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:131)
        at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:382)
        at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:708)
        at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:626)
        at java.lang.Thread.run(Thread.java:748)
   8) Thread[id=122, name=Thread-33, state=WAITING, group=TGRP-TestLTROnSolrCloud]
        at java.lang.Object.wait(Native Method)
        at java.lang.Object.wait(Object.java:502)
        at org.apache.solr.core.CloserThread.run(CoreContainer.java:1725)
   9) Thread[id=167, name=ScheduledTrigger-64-thread-3, state=WAITING, group=TGRP-TestLTROnSolrCloud]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
        at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
        at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1088)
        at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
        at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
  10) Thread[id=134, name=Scheduler-327992176, state=WAITING, group=TGRP-TestLTROnSolrCloud]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
        at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
        at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1081)
        at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
        at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
  11) Thread[id=98, name=qtp491470505-98, state=RUNNABLE, group=TGRP-TestLTROnSolrCloud]
        at sun.nio.ch.EPollArrayWrapper.interrupt(Native Method)
        at sun.nio.ch.EPollArrayWrapper.interrupt(EPollArrayWrapper.java:317)
        at sun.nio.ch.EPollSelectorImpl.wakeup(EPollSelectorImpl.java:207)
        at java.nio.channels.spi.AbstractSelector$1.interrupt(AbstractSelector.java:213)
        at java.nio.channels.spi.AbstractSelector.begin(AbstractSelector.java:219)
        at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:92)
        at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)
        at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
        at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:101)
        at org.eclipse.jetty.io.ManagedSelector$SelectorProducer.select(ManagedSelector.java:375)
        at org.eclipse.jetty.io.ManagedSelector$SelectorProducer.produce(ManagedSelector.java:304)
        at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:179)
        at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.produce(EatWhatYouKill.java:140)
        at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:131)
        at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:382)
        at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:708)
        at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:626)
        at java.lang.Thread.run(Thread.java:748)
  12) Thread[id=99, name=Scheduler-1782389197, state=TIMED_WAITING, group=TGRP-TestLTROnSolrCloud]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
        at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
        at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)
        at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
        at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
  13) Thread[id=94, name=qtp491470505-94, state=TIMED_WAITING, group=TGRP-TestLTROnSolrCloud]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
        at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2163)
        at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.reservedWait(ReservedThreadExecutor.java:308)
        at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:373)
        at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:708)
        at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:626)
        at java.lang.Thread.run(Thread.java:748)
  14) Thread[id=96, name=qtp491470505-96, state=TIMED_WAITING, group=TGRP-TestLTROnSolrCloud]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
        at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2163)
        at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.reservedWait(ReservedThreadExecutor.java:308)
        at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:373)
        at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:708)
        at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:626)
        at java.lang.Thread.run(Thread.java:748)
  15) Thread[id=155, name=zkConnectionManagerCallback-25-thread-1-processing-n:127.0.0.1:43474_solr-SendThread(127.0.0.1:37649), state=TIMED_WAITING, group=TGRP-TestLTROnSolrCloud]
        at java.lang.Thread.sleep(Native Method)
        at org.apache.zookeeper.client.StaticHostProvider.next(StaticHostProvider.java:105)
        at org.apache.zookeeper.ClientCnxn$SendThread.startConnect(ClientCnxn.java:1000)
        at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1063)
  16) Thread[id=164, name=ScheduledTrigger-64-thread-1, state=TIMED_WAITING, group=TGRP-TestLTROnSolrCloud]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
        at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
        at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)
        at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
        at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
  17) Thread[id=168, name=ScheduledTrigger-64-thread-4, state=WAITING, group=TGRP-TestLTROnSolrCloud]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
        at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
        at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1088)
        at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
        at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
	at __randomizedtesting.SeedInfo.seed([7CF1C0CA1BE6DD13]:0)


FAILED:  org.apache.solr.cloud.TestTlogReplica.testCreateDelete {seed=[737B31C7A426A7FB:686BC08B52D65FCB]}

Error Message:
Error from server at http://127.0.0.1:43498/solr: KeeperErrorCode = NoNode for /overseer/collection-queue-work/qnr-0000000002

Stack Trace:
org.apache.solr.client.solrj.impl.HttpSolrClient$RemoteSolrException: Error from server at http://127.0.0.1:43498/solr: KeeperErrorCode = NoNode for /overseer/collection-queue-work/qnr-0000000002
	at org.apache.solr.client.solrj.impl.HttpSolrClient.executeMethod(HttpSolrClient.java:643)
	at org.apache.solr.client.solrj.impl.HttpSolrClient.request(HttpSolrClient.java:255)
	at org.apache.solr.client.solrj.impl.HttpSolrClient.request(HttpSolrClient.java:244)
	at org.apache.solr.client.solrj.impl.LBHttpSolrClient.doRequest(LBHttp

[...truncated too long message...]

ger-64-thread-3, state=WAITING, group=TGRP-TestLTROnSolrCloud]
   [junit4]    >         at sun.misc.Unsafe.park(Native Method)
   [junit4]    >         at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
   [junit4]    >         at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
   [junit4]    >         at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1088)
   [junit4]    >         at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
   [junit4]    >         at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
   [junit4]    >         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
   [junit4]    >         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
   [junit4]    >         at java.lang.Thread.run(Thread.java:748)
   [junit4]    >   10) Thread[id=134, name=Scheduler-327992176, state=WAITING, group=TGRP-TestLTROnSolrCloud]
   [junit4]    >         at sun.misc.Unsafe.park(Native Method)
   [junit4]    >         at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
   [junit4]    >         at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
   [junit4]    >         at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1081)
   [junit4]    >         at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
   [junit4]    >         at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
   [junit4]    >         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
   [junit4]    >         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
   [junit4]    >         at java.lang.Thread.run(Thread.java:748)
   [junit4]    >   11) Thread[id=98, name=qtp491470505-98, state=RUNNABLE, group=TGRP-TestLTROnSolrCloud]
   [junit4]    >         at sun.nio.ch.EPollArrayWrapper.interrupt(Native Method)
   [junit4]    >         at sun.nio.ch.EPollArrayWrapper.interrupt(EPollArrayWrapper.java:317)
   [junit4]    >         at sun.nio.ch.EPollSelectorImpl.wakeup(EPollSelectorImpl.java:207)
   [junit4]    >         at java.nio.channels.spi.AbstractSelector$1.interrupt(AbstractSelector.java:213)
   [junit4]    >         at java.nio.channels.spi.AbstractSelector.begin(AbstractSelector.java:219)
   [junit4]    >         at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:92)
   [junit4]    >         at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)
   [junit4]    >         at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
   [junit4]    >         at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:101)
   [junit4]    >         at org.eclipse.jetty.io.ManagedSelector$SelectorProducer.select(ManagedSelector.java:375)
   [junit4]    >         at org.eclipse.jetty.io.ManagedSelector$SelectorProducer.produce(ManagedSelector.java:304)
   [junit4]    >         at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:179)
   [junit4]    >         at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.produce(EatWhatYouKill.java:140)
   [junit4]    >         at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:131)
   [junit4]    >         at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:382)
   [junit4]    >         at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:708)
   [junit4]    >         at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:626)
   [junit4]    >         at java.lang.Thread.run(Thread.java:748)
   [junit4]    >   12) Thread[id=99, name=Scheduler-1782389197, state=TIMED_WAITING, group=TGRP-TestLTROnSolrCloud]
   [junit4]    >         at sun.misc.Unsafe.park(Native Method)
   [junit4]    >         at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
   [junit4]    >         at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
   [junit4]    >         at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)
   [junit4]    >         at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
   [junit4]    >         at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
   [junit4]    >         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
   [junit4]    >         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
   [junit4]    >         at java.lang.Thread.run(Thread.java:748)
   [junit4]    >   13) Thread[id=94, name=qtp491470505-94, state=TIMED_WAITING, group=TGRP-TestLTROnSolrCloud]
   [junit4]    >         at sun.misc.Unsafe.park(Native Method)
   [junit4]    >         at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
   [junit4]    >         at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2163)
   [junit4]    >         at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.reservedWait(ReservedThreadExecutor.java:308)
   [junit4]    >         at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:373)
   [junit4]    >         at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:708)
   [junit4]    >         at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:626)
   [junit4]    >         at java.lang.Thread.run(Thread.java:748)
   [junit4]    >   14) Thread[id=96, name=qtp491470505-96, state=TIMED_WAITING, group=TGRP-TestLTROnSolrCloud]
   [junit4]    >         at sun.misc.Unsafe.park(Native Method)
   [junit4]    >         at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
   [junit4]    >         at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2163)
   [junit4]    >         at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.reservedWait(ReservedThreadExecutor.java:308)
   [junit4]    >         at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:373)
   [junit4]    >         at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:708)
   [junit4]    >         at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:626)
   [junit4]    >         at java.lang.Thread.run(Thread.java:748)
   [junit4]    >   15) Thread[id=155, name=zkConnectionManagerCallback-25-thread-1-processing-n:127.0.0.1:43474_solr-SendThread(127.0.0.1:37649), state=TIMED_WAITING, group=TGRP-TestLTROnSolrCloud]
   [junit4]    >         at java.lang.Thread.sleep(Native Method)
   [junit4]    >         at org.apache.zookeeper.client.StaticHostProvider.next(StaticHostProvider.java:105)
   [junit4]    >         at org.apache.zookeeper.ClientCnxn$SendThread.startConnect(ClientCnxn.java:1000)
   [junit4]    >         at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1063)
   [junit4]    >   16) Thread[id=164, name=ScheduledTrigger-64-thread-1, state=TIMED_WAITING, group=TGRP-TestLTROnSolrCloud]
   [junit4]    >         at sun.misc.Unsafe.park(Native Method)
   [junit4]    >         at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
   [junit4]    >         at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
   [junit4]    >         at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)
   [junit4]    >         at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
   [junit4]    >         at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
   [junit4]    >         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
   [junit4]    >         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
   [junit4]    >         at java.lang.Thread.run(Thread.java:748)
   [junit4]    >   17) Thread[id=168, name=ScheduledTrigger-64-thread-4, state=WAITING, group=TGRP-TestLTROnSolrCloud]
   [junit4]    >         at sun.misc.Unsafe.park(Native Method)
   [junit4]    >         at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
   [junit4]    >         at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
   [junit4]    >         at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1088)
   [junit4]    >         at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
   [junit4]    >         at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
   [junit4]    >         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
   [junit4]    >         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
   [junit4]    >         at java.lang.Thread.run(Thread.java:748)
   [junit4]    > 	at __randomizedtesting.SeedInfo.seed([7CF1C0CA1BE6DD13]:0)
   [junit4] Completed [34/37 (1!)] on J0 in 266.87s, 1 test, 3 errors <<< FAILURES!

[...truncated 42026 lines...]