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Posted to builds@lucene.apache.org by Apache Jenkins Server <je...@builds.apache.org> on 2020/01/05 18:05:33 UTC

[JENKINS] Lucene-Solr-BadApples-Tests-master - Build # 582 - Still Unstable

Build: https://builds.apache.org/job/Lucene-Solr-BadApples-Tests-master/582/

1 tests failed.
FAILED:  org.apache.solr.cloud.OverseerTest.testShardLeaderChange

Error Message:
Captured an uncaught exception in thread: Thread[id=12314, name=OverseerCollectionConfigSetProcessor-73018739537739800-127.0.0.1:41653_solr-n_0000000000, state=RUNNABLE, group=Overseer collection creation process.]

Stack Trace:
com.carrotsearch.randomizedtesting.UncaughtExceptionError: Captured an uncaught exception in thread: Thread[id=12314, name=OverseerCollectionConfigSetProcessor-73018739537739800-127.0.0.1:41653_solr-n_0000000000, state=RUNNABLE, group=Overseer collection creation process.]
	at __randomizedtesting.SeedInfo.seed([DEEB100905D2259A:B897FE1F4AD06B]:0)
Caused by: org.apache.solr.common.AlreadyClosedException
	at __randomizedtesting.SeedInfo.seed([DEEB100905D2259A]:0)
	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:69)
	at org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:338)
	at org.apache.solr.cloud.OverseerTaskProcessor.amILeader(OverseerTaskProcessor.java:424)
	at org.apache.solr.cloud.OverseerTaskProcessor.run(OverseerTaskProcessor.java:155)
	at java.base/java.lang.Thread.run(Thread.java:834)




Build Log:
[...truncated 13704 lines...]
   [junit4] Suite: org.apache.solr.cloud.OverseerTest
   [junit4]   2> 790062 INFO  (SUITE-OverseerTest-seed#[DEEB100905D2259A]-worker) [     ] o.a.s.SolrTestCaseJ4 Created dataDir: /home/jenkins/jenkins-slave/workspace/Lucene-Solr-BadApples-Tests-master/solr/build/solr-core/test/J2/temp/solr.cloud.OverseerTest_DEEB100905D2259A-001/data-dir-82-001
   [junit4]   2> 790062 WARN  (SUITE-OverseerTest-seed#[DEEB100905D2259A]-worker) [     ] o.a.s.SolrTestCaseJ4 startTrackingSearchers: numOpens=1 numCloses=1
   [junit4]   2> 790062 INFO  (SUITE-OverseerTest-seed#[DEEB100905D2259A]-worker) [     ] o.a.s.SolrTestCaseJ4 Using PointFields (NUMERIC_POINTS_SYSPROP=true) w/NUMERIC_DOCVALUES_SYSPROP=true
   [junit4]   2> 790063 INFO  (SUITE-OverseerTest-seed#[DEEB100905D2259A]-worker) [     ] o.a.s.SolrTestCaseJ4 Randomized ssl (true) and clientAuth (true) via: @org.apache.solr.util.RandomizeSSL(reason="", ssl=0.0/0.0, value=0.0/0.0, clientAuth=0.0/0.0)
   [junit4]   2> 790069 INFO  (SUITE-OverseerTest-seed#[DEEB100905D2259A]-worker) [     ] o.a.s.SolrTestCaseJ4 SecureRandom sanity checks: test.solr.allowed.securerandom=null & java.security.egd=file:/dev/./urandom
   [junit4]   2> 790070 INFO  (SUITE-OverseerTest-seed#[DEEB100905D2259A]-worker) [     ] o.a.s.c.ZkTestServer STARTING ZK TEST SERVER
   [junit4]   2> 790084 INFO  (ZkTestServer Run Thread) [     ] o.a.s.c.ZkTestServer client port:0.0.0.0/0.0.0.0:0
   [junit4]   2> 790084 INFO  (ZkTestServer Run Thread) [     ] o.a.s.c.ZkTestServer Starting server
   [junit4]   2> 790181 INFO  (SUITE-OverseerTest-seed#[DEEB100905D2259A]-worker) [     ] o.a.s.c.ZkTestServer start zk server on port:41653
   [junit4]   2> 790181 INFO  (SUITE-OverseerTest-seed#[DEEB100905D2259A]-worker) [     ] o.a.s.c.ZkTestServer waitForServerUp: 127.0.0.1:41653
   [junit4]   2> 790181 INFO  (SUITE-OverseerTest-seed#[DEEB100905D2259A]-worker) [     ] o.a.s.c.ZkTestServer parse host and port list: 127.0.0.1:41653
   [junit4]   2> 790181 INFO  (SUITE-OverseerTest-seed#[DEEB100905D2259A]-worker) [     ] o.a.s.c.ZkTestServer connecting to 127.0.0.1 41653
   [junit4]   2> 790184 INFO  (SUITE-OverseerTest-seed#[DEEB100905D2259A]-worker) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 790185 INFO  (zkConnectionManagerCallback-3967-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 790185 INFO  (SUITE-OverseerTest-seed#[DEEB100905D2259A]-worker) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 790196 INFO  (SUITE-OverseerTest-seed#[DEEB100905D2259A]-worker) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 790199 INFO  (zkConnectionManagerCallback-3969-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 790199 INFO  (SUITE-OverseerTest-seed#[DEEB100905D2259A]-worker) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 790199 INFO  (SUITE-OverseerTest-seed#[DEEB100905D2259A]-worker) [     ] o.a.s.SolrTestCaseJ4 ####initCore
   [junit4]   2> 790199 INFO  (SUITE-OverseerTest-seed#[DEEB100905D2259A]-worker) [     ] o.a.s.SolrTestCaseJ4 ####initCore end
   [junit4]   2> 790209 INFO  (TEST-OverseerTest.testReplay-seed#[DEEB100905D2259A]) [     ] o.a.s.SolrTestCaseJ4 ###Starting testReplay
   [junit4]   2> 790285 INFO  (TEST-OverseerTest.testReplay-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 790286 INFO  (zkConnectionManagerCallback-3973-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 790286 INFO  (TEST-OverseerTest.testReplay-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 790296 WARN  (TEST-OverseerTest.testReplay-seed#[DEEB100905D2259A]) [     ] o.e.j.u.s.S.config Trusting all certificates configured for Client@512ea074[provider=null,keyStore=null,trustStore=null]
   [junit4]   2> 790296 WARN  (TEST-OverseerTest.testReplay-seed#[DEEB100905D2259A]) [     ] o.e.j.u.s.S.config No Client EndPointIdentificationAlgorithm configured for Client@512ea074[provider=null,keyStore=null,trustStore=null]
   [junit4]   2> 790389 INFO  (TEST-OverseerTest.testReplay-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 790390 INFO  (zkConnectionManagerCallback-3980-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 790390 INFO  (TEST-OverseerTest.testReplay-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 790485 INFO  (TEST-OverseerTest.testReplay-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 790486 INFO  (zkConnectionManagerCallback-3985-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 790486 INFO  (TEST-OverseerTest.testReplay-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 790488 INFO  (TEST-OverseerTest.testReplay-seed#[DEEB100905D2259A]) [     ] o.a.s.c.s.i.ZkClientClusterStateProvider Cluster at 127.0.0.1:41653/solr ready
   [junit4]   2> 790490 INFO  (TEST-OverseerTest.testReplay-seed#[DEEB100905D2259A]) [     ] o.a.s.c.OverseerElectionContext I am going to be the leader 127.0.0.1:41653_solr
   [junit4]   2> 790491 INFO  (TEST-OverseerTest.testReplay-seed#[DEEB100905D2259A]) [     ] o.a.s.c.Overseer Overseer (id=73018739537739778-127.0.0.1:41653_solr-n_0000000000) starting
   [junit4]   2> 790495 INFO  (OverseerStateUpdate-73018739537739778-127.0.0.1:41653_solr-n_0000000000) [     ] o.a.s.c.Overseer Starting to work on the main queue : 127.0.0.1:41653_solr
   [junit4]   2> 790495 WARN  (TEST-OverseerTest.testReplay-seed#[DEEB100905D2259A]) [     ] o.a.s.c.Overseer Unable to check back-compat of .system collection - can't obtain ClusterState.
   [junit4]   2> 790911 INFO  (closeThreadPool-3987-thread-1) [     ] o.a.s.c.Overseer Overseer (id=73018739537739778-127.0.0.1:41653_solr-n_0000000000) closing
   [junit4]   2> 790911 INFO  (OverseerStateUpdate-73018739537739778-127.0.0.1:41653_solr-n_0000000000) [     ] o.a.s.c.Overseer Overseer Loop exiting : 127.0.0.1:41653_solr
   [junit4]   2> 790911 INFO  (OverseerAutoScalingTriggerThread-73018739537739778-127.0.0.1:41653_solr-n_0000000000) [     ] o.a.s.c.a.OverseerTriggerThread OverseerTriggerThread woken up but we are closed, exiting.
   [junit4]   2> 790913 WARN  (OverseerExitThread) [     ] o.a.s.c.Overseer Error communicating with ZooKeeper
   [junit4]   2>           => org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /overseer_elect/leader
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:134)
   [junit4]   2> org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /overseer_elect/leader
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:134) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:2131) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:338) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:71) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:338) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.cloud.Overseer$ClusterStateUpdater.checkIfIamStillLeader(Overseer.java:331) ~[java/:?]
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:834) [?:?]
   [junit4]   2> 790934 INFO  (TEST-OverseerTest.testReplay-seed#[DEEB100905D2259A]) [     ] o.a.s.SolrTestCaseJ4 ###Ending testReplay
   [junit4]   2> 790939 INFO  (TEST-OverseerTest.testDoubleAssignment-seed#[DEEB100905D2259A]) [     ] o.a.s.SolrTestCaseJ4 ###Starting testDoubleAssignment
   [junit4]   2> 790997 INFO  (TEST-OverseerTest.testDoubleAssignment-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 790998 INFO  (zkConnectionManagerCallback-3991-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 790998 INFO  (TEST-OverseerTest.testDoubleAssignment-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 791003 INFO  (zkCallback-3968-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 791003 INFO  (zkCallback-3990-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 791003 INFO  (TEST-OverseerTest.testDoubleAssignment-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 791009 INFO  (zkConnectionManagerCallback-3995-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 791009 INFO  (TEST-OverseerTest.testDoubleAssignment-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 791014 WARN  (TEST-OverseerTest.testDoubleAssignment-seed#[DEEB100905D2259A]) [     ] o.e.j.u.s.S.config Trusting all certificates configured for Client@191e3dfa[provider=null,keyStore=null,trustStore=null]
   [junit4]   2> 791014 WARN  (TEST-OverseerTest.testDoubleAssignment-seed#[DEEB100905D2259A]) [     ] o.e.j.u.s.S.config No Client EndPointIdentificationAlgorithm configured for Client@191e3dfa[provider=null,keyStore=null,trustStore=null]
   [junit4]   2> 791016 INFO  (TEST-OverseerTest.testDoubleAssignment-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 791021 INFO  (zkConnectionManagerCallback-4002-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 791021 INFO  (TEST-OverseerTest.testDoubleAssignment-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 791024 INFO  (TEST-OverseerTest.testDoubleAssignment-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 791028 INFO  (zkConnectionManagerCallback-4007-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 791028 INFO  (TEST-OverseerTest.testDoubleAssignment-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 791029 INFO  (TEST-OverseerTest.testDoubleAssignment-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 791030 INFO  (TEST-OverseerTest.testDoubleAssignment-seed#[DEEB100905D2259A]) [     ] o.a.s.c.s.i.ZkClientClusterStateProvider Cluster at 127.0.0.1:41653/solr ready
   [junit4]   2> 791031 INFO  (TEST-OverseerTest.testDoubleAssignment-seed#[DEEB100905D2259A]) [     ] o.a.s.c.OverseerElectionContext I am going to be the leader 127.0.0.1:41653_solr
   [junit4]   2> 791032 INFO  (TEST-OverseerTest.testDoubleAssignment-seed#[DEEB100905D2259A]) [     ] o.a.s.c.Overseer Overseer (id=73018739537739782-127.0.0.1:41653_solr-n_0000000000) starting
   [junit4]   2> 791038 INFO  (OverseerStateUpdate-73018739537739782-127.0.0.1:41653_solr-n_0000000000) [     ] o.a.s.c.Overseer Starting to work on the main queue : 127.0.0.1:41653_solr
   [junit4]   2> 791039 INFO  (OverseerStateUpdate-73018739537739782-127.0.0.1:41653_solr-n_0000000000) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 791041 WARN  (TEST-OverseerTest.testDoubleAssignment-seed#[DEEB100905D2259A]) [     ] o.a.s.c.Overseer Unable to check back-compat of .system collection - can't obtain ClusterState.
   [junit4]   2> 791058 INFO  (TEST-OverseerTest.testDoubleAssignment-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 791061 INFO  (zkConnectionManagerCallback-4012-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 791061 INFO  (TEST-OverseerTest.testDoubleAssignment-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 791062 INFO  (TEST-OverseerTest.testDoubleAssignment-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 791063 INFO  (TEST-OverseerTest.testDoubleAssignment-seed#[DEEB100905D2259A]) [     ] o.a.s.c.s.i.ZkClientClusterStateProvider Cluster at 127.0.0.1:41653/solr ready
   [junit4]   2> 791170 INFO  (TEST-OverseerTest.testDoubleAssignment-seed#[DEEB100905D2259A]) [     ] o.a.s.c.ShardLeaderElectionContextBase make sure parent is created /collections/collection1/leaders/shard1
   [junit4]   2> 791171 INFO  (TEST-OverseerTest.testDoubleAssignment-seed#[DEEB100905D2259A]) [     ] o.a.s.c.ShardLeaderElectionContextBase Creating leader registration node /collections/collection1/leaders/shard1/leader after winning as /collections/collection1/leader_elect/shard1/election/73018739537739781-node1_core1-n_0000000000
   [junit4]   2> 791173 INFO  (TEST-OverseerTest.testDoubleAssignment-seed#[DEEB100905D2259A]) [     ] o.a.s.c.AbstractDistribZkTestBase verifyReplicaStatus (collection1) shard=shard1 coreNodeName=core_node1
   [junit4]   2> 791175 INFO  (zkCallback-3994-thread-2) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (0)
   [junit4]   2> 791175 INFO  (zkCallback-3968-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (0)
   [junit4]   2> 791175 INFO  (zkCallback-4006-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (0)
   [junit4]   2> 791175 INFO  (zkCallback-3990-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (0)
   [junit4]   2> 791175 INFO  (zkCallback-4011-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (0)
   [junit4]   2> 791276 INFO  (TEST-OverseerTest.testDoubleAssignment-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 791277 INFO  (zkConnectionManagerCallback-4014-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 791277 INFO  (TEST-OverseerTest.testDoubleAssignment-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 791282 INFO  (zkCallback-3994-thread-2) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 791282 INFO  (zkCallback-4011-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 791282 INFO  (zkCallback-3968-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 791282 INFO  (zkCallback-4006-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 791282 INFO  (zkCallback-4013-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 791284 INFO  (TEST-OverseerTest.testDoubleAssignment-seed#[DEEB100905D2259A]) [     ] o.a.s.c.ShardLeaderElectionContextBase make sure parent is created /collections/collection1/leaders/shard1
   [junit4]   2> 791285 INFO  (TEST-OverseerTest.testDoubleAssignment-seed#[DEEB100905D2259A]) [     ] o.a.s.c.ShardLeaderElectionContextBase Creating leader registration node /collections/collection1/leaders/shard1/leader after winning as /collections/collection1/leader_elect/shard1/election/73018739537739786-node1_core1-n_0000000001
   [junit4]   2> 791386 WARN  (OverseerStateUpdate-73018739537739782-127.0.0.1:41653_solr-n_0000000000) [     ] o.a.s.c.Overseer Solr cannot talk to ZK, exiting Overseer main queue loop
   [junit4]   2>           => org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /clusterstate.json
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:134)
   [junit4]   2> org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /clusterstate.json
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:134) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.setData(ZooKeeper.java:2384) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$setData$6(SolrZkClient.java:350) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:71) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.setData(SolrZkClient.java:350) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.cloud.overseer.ZkStateWriter.writePendingUpdates(ZkStateWriter.java:220) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.cloud.Overseer$ClusterStateUpdater.run(Overseer.java:259) ~[java/:?]
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:834) [?:?]
   [junit4]   2> 791386 INFO  (OverseerStateUpdate-73018739537739782-127.0.0.1:41653_solr-n_0000000000) [     ] o.a.s.c.Overseer Overseer Loop exiting : 127.0.0.1:41653_solr
   [junit4]   2> 791389 INFO  (zkCallback-4006-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (0)
   [junit4]   2> 791389 INFO  (zkCallback-3968-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (0)
   [junit4]   2> 791390 INFO  (zkCallback-4011-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (0)
   [junit4]   2> 791390 WARN  (OverseerExitThread) [     ] o.a.s.c.Overseer Error communicating with ZooKeeper
   [junit4]   2>           => org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /overseer_elect/leader
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:134)
   [junit4]   2> org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /overseer_elect/leader
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:134) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:2131) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:338) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:71) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:338) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.cloud.Overseer$ClusterStateUpdater.checkIfIamStillLeader(Overseer.java:331) ~[java/:?]
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:834) [?:?]
   [junit4]   2> 791390 INFO  (zkCallback-4013-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (0)
   [junit4]   2> 791697 INFO  (closeThreadPool-4018-thread-1) [     ] o.a.s.c.Overseer Overseer (id=73018739537739782-127.0.0.1:41653_solr-n_0000000000) closing
   [junit4]   2> 791697 INFO  (OverseerAutoScalingTriggerThread-73018739537739782-127.0.0.1:41653_solr-n_0000000000) [     ] o.a.s.c.a.OverseerTriggerThread OverseerTriggerThread woken up but we are closed, exiting.
   [junit4]   2> 791724 INFO  (TEST-OverseerTest.testDoubleAssignment-seed#[DEEB100905D2259A]) [     ] o.a.s.SolrTestCaseJ4 ###Ending testDoubleAssignment
   [junit4]   2> 791729 INFO  (TEST-OverseerTest.testLatchWatcher-seed#[DEEB100905D2259A]) [     ] o.a.s.SolrTestCaseJ4 ###Starting testLatchWatcher
   [junit4]   2> 791831 INFO  (TEST-OverseerTest.testLatchWatcher-seed#[DEEB100905D2259A]) [     ] o.a.s.SolrTestCaseJ4 ###Ending testLatchWatcher
   [junit4]   2> 791836 INFO  (TEST-OverseerTest.testOverseerFailure-seed#[DEEB100905D2259A]) [     ] o.a.s.SolrTestCaseJ4 ###Starting testOverseerFailure
   [junit4]   2> 791889 INFO  (TEST-OverseerTest.testOverseerFailure-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 791890 INFO  (zkConnectionManagerCallback-4024-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 791890 INFO  (TEST-OverseerTest.testOverseerFailure-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 791894 INFO  (zkCallback-3968-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 791894 INFO  (zkCallback-4023-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 791894 INFO  (TEST-OverseerTest.testOverseerFailure-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 791895 INFO  (zkConnectionManagerCallback-4028-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 791895 INFO  (TEST-OverseerTest.testOverseerFailure-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 791901 WARN  (TEST-OverseerTest.testOverseerFailure-seed#[DEEB100905D2259A]) [     ] o.e.j.u.s.S.config Trusting all certificates configured for Client@5d043fcd[provider=null,keyStore=null,trustStore=null]
   [junit4]   2> 791901 WARN  (TEST-OverseerTest.testOverseerFailure-seed#[DEEB100905D2259A]) [     ] o.e.j.u.s.S.config No Client EndPointIdentificationAlgorithm configured for Client@5d043fcd[provider=null,keyStore=null,trustStore=null]
   [junit4]   2> 791901 INFO  (TEST-OverseerTest.testOverseerFailure-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 791902 INFO  (zkConnectionManagerCallback-4035-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 791902 INFO  (TEST-OverseerTest.testOverseerFailure-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 791904 INFO  (TEST-OverseerTest.testOverseerFailure-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 791905 INFO  (zkConnectionManagerCallback-4040-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 791905 INFO  (TEST-OverseerTest.testOverseerFailure-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 791906 INFO  (TEST-OverseerTest.testOverseerFailure-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 791906 INFO  (TEST-OverseerTest.testOverseerFailure-seed#[DEEB100905D2259A]) [     ] o.a.s.c.s.i.ZkClientClusterStateProvider Cluster at 127.0.0.1:41653/solr ready
   [junit4]   2> 791908 INFO  (TEST-OverseerTest.testOverseerFailure-seed#[DEEB100905D2259A]) [     ] o.a.s.c.OverseerElectionContext I am going to be the leader 127.0.0.1:41653_solr
   [junit4]   2> 791909 INFO  (TEST-OverseerTest.testOverseerFailure-seed#[DEEB100905D2259A]) [     ] o.a.s.c.Overseer Overseer (id=73018739537739788-127.0.0.1:41653_solr-n_0000000000) starting
   [junit4]   2> 791913 WARN  (TEST-OverseerTest.testOverseerFailure-seed#[DEEB100905D2259A]) [     ] o.a.s.c.Overseer Unable to check back-compat of .system collection - can't obtain ClusterState.
   [junit4]   2> 791913 INFO  (OverseerStateUpdate-73018739537739788-127.0.0.1:41653_solr-n_0000000000) [     ] o.a.s.c.Overseer Starting to work on the main queue : 127.0.0.1:41653_solr
   [junit4]   2> 791917 INFO  (OverseerStateUpdate-73018739537739788-127.0.0.1:41653_solr-n_0000000000) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 791921 INFO  (TEST-OverseerTest.testOverseerFailure-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 791921 INFO  (zkConnectionManagerCallback-4045-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 791922 INFO  (TEST-OverseerTest.testOverseerFailure-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 791922 INFO  (TEST-OverseerTest.testOverseerFailure-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 791923 INFO  (TEST-OverseerTest.testOverseerFailure-seed#[DEEB100905D2259A]) [     ] o.a.s.c.s.i.ZkClientClusterStateProvider Cluster at 127.0.0.1:41653/solr ready
   [junit4]   2> 792028 INFO  (TEST-OverseerTest.testOverseerFailure-seed#[DEEB100905D2259A]) [     ] o.a.s.c.ShardLeaderElectionContextBase make sure parent is created /collections/collection1/leaders/shard1
   [junit4]   2> 792030 INFO  (TEST-OverseerTest.testOverseerFailure-seed#[DEEB100905D2259A]) [     ] o.a.s.c.ShardLeaderElectionContextBase Creating leader registration node /collections/collection1/leaders/shard1/leader after winning as /collections/collection1/leader_elect/shard1/election/73018739537739787-node1_core1-n_0000000000
   [junit4]   2> 792031 INFO  (TEST-OverseerTest.testOverseerFailure-seed#[DEEB100905D2259A]) [     ] o.a.s.c.AbstractDistribZkTestBase verifyReplicaStatus (collection1) shard=shard1 coreNodeName=core_node1
   [junit4]   2> 792034 INFO  (TEST-OverseerTest.testOverseerFailure-seed#[DEEB100905D2259A]) [     ] o.a.s.c.ShardLeaderElectionContextBase make sure parent is created /collections/collection1/leaders/shard1
   [junit4]   2> 792035 INFO  (TEST-OverseerTest.testOverseerFailure-seed#[DEEB100905D2259A]) [     ] o.a.s.c.ShardLeaderElectionContextBase Creating leader registration node /collections/collection1/leaders/shard1/leader after winning as /collections/collection1/leader_elect/shard1/election/73018739537739787-node1_core1-n_0000000001
   [junit4]   2> 792036 INFO  (TEST-OverseerTest.testOverseerFailure-seed#[DEEB100905D2259A]) [     ] o.a.s.c.AbstractDistribZkTestBase verifyReplicaStatus (collection1) shard=shard1 coreNodeName=core_node1
   [junit4]   2> 792140 INFO  (TEST-OverseerTest.testOverseerFailure-seed#[DEEB100905D2259A]) [     ] o.a.s.c.ShardLeaderElectionContextBase make sure parent is created /collections/collection1/leaders/shard1
   [junit4]   2> 792142 INFO  (TEST-OverseerTest.testOverseerFailure-seed#[DEEB100905D2259A]) [     ] o.a.s.c.ShardLeaderElectionContextBase Creating leader registration node /collections/collection1/leaders/shard1/leader after winning as /collections/collection1/leader_elect/shard1/election/73018739537739787-node1_core1-n_0000000002
   [junit4]   2> 792243 WARN  (OverseerStateUpdate-73018739537739788-127.0.0.1:41653_solr-n_0000000000) [     ] o.a.s.c.Overseer Solr cannot talk to ZK, exiting Overseer main queue loop
   [junit4]   2>           => org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /clusterstate.json
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:134)
   [junit4]   2> org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /clusterstate.json
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:134) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.setData(ZooKeeper.java:2384) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$setData$6(SolrZkClient.java:350) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:71) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.setData(SolrZkClient.java:350) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.cloud.overseer.ZkStateWriter.writePendingUpdates(ZkStateWriter.java:220) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.cloud.Overseer$ClusterStateUpdater.run(Overseer.java:259) ~[java/:?]
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:834) [?:?]
   [junit4]   2> 792243 INFO  (OverseerStateUpdate-73018739537739788-127.0.0.1:41653_solr-n_0000000000) [     ] o.a.s.c.Overseer Overseer Loop exiting : 127.0.0.1:41653_solr
   [junit4]   2> 792246 INFO  (TEST-OverseerTest.testOverseerFailure-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 792246 WARN  (OverseerExitThread) [     ] o.a.s.c.Overseer Error communicating with ZooKeeper
   [junit4]   2>           => org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /overseer_elect/leader
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:134)
   [junit4]   2> org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /overseer_elect/leader
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:134) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:2131) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:338) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:71) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:338) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.cloud.Overseer$ClusterStateUpdater.checkIfIamStillLeader(Overseer.java:331) ~[java/:?]
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:834) [?:?]
   [junit4]   2> 792247 INFO  (zkConnectionManagerCallback-4047-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 792247 INFO  (TEST-OverseerTest.testOverseerFailure-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 792247 INFO  (TEST-OverseerTest.testOverseerFailure-seed#[DEEB100905D2259A]) [     ] o.a.s.c.Overseer Overseer (id=73018739537739788-127.0.0.1:41653_solr-n_0000000000) closing
   [junit4]   2> 792247 INFO  (OverseerAutoScalingTriggerThread-73018739537739788-127.0.0.1:41653_solr-n_0000000000) [     ] o.a.s.c.a.OverseerTriggerThread OverseerTriggerThread woken up but we are closed, exiting.
   [junit4]   2> 792251 WARN  (TEST-OverseerTest.testOverseerFailure-seed#[DEEB100905D2259A]) [     ] o.e.j.u.s.S.config Trusting all certificates configured for Client@715a9215[provider=null,keyStore=null,trustStore=null]
   [junit4]   2> 792251 WARN  (TEST-OverseerTest.testOverseerFailure-seed#[DEEB100905D2259A]) [     ] o.e.j.u.s.S.config No Client EndPointIdentificationAlgorithm configured for Client@715a9215[provider=null,keyStore=null,trustStore=null]
   [junit4]   2> 792251 INFO  (TEST-OverseerTest.testOverseerFailure-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 792252 INFO  (zkConnectionManagerCallback-4054-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 792252 INFO  (TEST-OverseerTest.testOverseerFailure-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 792254 INFO  (TEST-OverseerTest.testOverseerFailure-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 792255 INFO  (zkConnectionManagerCallback-4059-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 792255 INFO  (TEST-OverseerTest.testOverseerFailure-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 792256 INFO  (TEST-OverseerTest.testOverseerFailure-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 792257 INFO  (TEST-OverseerTest.testOverseerFailure-seed#[DEEB100905D2259A]) [     ] o.a.s.c.s.i.ZkClientClusterStateProvider Cluster at 127.0.0.1:41653/solr ready
   [junit4]   2> 792258 INFO  (TEST-OverseerTest.testOverseerFailure-seed#[DEEB100905D2259A]) [     ] o.a.s.c.OverseerElectionContext I am going to be the leader 127.0.0.1:41653_solr
   [junit4]   2> 792258 INFO  (TEST-OverseerTest.testOverseerFailure-seed#[DEEB100905D2259A]) [     ] o.a.s.c.Overseer Overseer (id=73018739537739792-127.0.0.1:41653_solr-n_0000000001) starting
   [junit4]   2> 792260 WARN  (TEST-OverseerTest.testOverseerFailure-seed#[DEEB100905D2259A]) [     ] o.a.s.c.Overseer Unable to check back-compat of .system collection - can't obtain ClusterState.
   [junit4]   2> 792261 INFO  (TEST-OverseerTest.testOverseerFailure-seed#[DEEB100905D2259A]) [     ] o.a.s.c.AbstractDistribZkTestBase verifyReplicaStatus (collection1) shard=shard1 coreNodeName=core_node1
   [junit4]   2> 792261 INFO  (OverseerStateUpdate-73018739537739792-127.0.0.1:41653_solr-n_0000000001) [     ] o.a.s.c.Overseer Starting to work on the main queue : 127.0.0.1:41653_solr
   [junit4]   2> 792262 INFO  (OverseerStateUpdate-73018739537739792-127.0.0.1:41653_solr-n_0000000001) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 792368 INFO  (zkCallback-4044-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (0)
   [junit4]   2> 792368 INFO  (zkCallback-3968-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (0)
   [junit4]   2> 792368 INFO  (zkCallback-4023-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (0)
   [junit4]   2> 792368 INFO  (zkCallback-4039-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (0)
   [junit4]   2> 792369 INFO  (zkCallback-4058-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (0)
   [junit4]   2> 792369 INFO  (zkCallback-4046-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (0)
   [junit4]   2> 792975 INFO  (closeThreadPool-4061-thread-1) [     ] o.a.s.c.Overseer Overseer (id=73018739537739788-127.0.0.1:41653_solr-n_0000000000) closing
   [junit4]   2> 792975 INFO  (closeThreadPool-4061-thread-2) [     ] o.a.s.c.Overseer Overseer (id=73018739537739792-127.0.0.1:41653_solr-n_0000000001) closing
   [junit4]   2> 792975 INFO  (OverseerAutoScalingTriggerThread-73018739537739792-127.0.0.1:41653_solr-n_0000000001) [     ] o.a.s.c.a.OverseerTriggerThread OverseerTriggerThread woken up but we are closed, exiting.
   [junit4]   2> 792976 INFO  (OverseerStateUpdate-73018739537739792-127.0.0.1:41653_solr-n_0000000001) [     ] o.a.s.c.Overseer Overseer Loop exiting : 127.0.0.1:41653_solr
   [junit4]   2> 792978 WARN  (OverseerExitThread) [     ] o.a.s.c.Overseer Error communicating with ZooKeeper
   [junit4]   2>           => org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /overseer_elect/leader
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:134)
   [junit4]   2> org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /overseer_elect/leader
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:134) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:2131) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:338) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:71) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:338) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.cloud.Overseer$ClusterStateUpdater.checkIfIamStillLeader(Overseer.java:331) ~[java/:?]
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:834) [?:?]
   [junit4]   2> 793005 INFO  (TEST-OverseerTest.testOverseerFailure-seed#[DEEB100905D2259A]) [     ] o.a.s.SolrTestCaseJ4 ###Ending testOverseerFailure
   [junit4]   2> 793010 INFO  (TEST-OverseerTest.testOverseerStatsReset-seed#[DEEB100905D2259A]) [     ] o.a.s.SolrTestCaseJ4 ###Starting testOverseerStatsReset
   [junit4]   2> 793071 INFO  (TEST-OverseerTest.testOverseerStatsReset-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 793082 INFO  (zkConnectionManagerCallback-4065-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 793082 INFO  (TEST-OverseerTest.testOverseerStatsReset-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 793086 INFO  (zkCallback-3968-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 793093 INFO  (zkCallback-4064-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 793101 INFO  (TEST-OverseerTest.testOverseerStatsReset-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 793109 INFO  (zkConnectionManagerCallback-4072-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 793109 INFO  (TEST-OverseerTest.testOverseerStatsReset-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 793110 INFO  (TEST-OverseerTest.testOverseerStatsReset-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 793111 INFO  (TEST-OverseerTest.testOverseerStatsReset-seed#[DEEB100905D2259A]) [     ] o.a.s.c.s.i.ZkClientClusterStateProvider Cluster at 127.0.0.1:41653/solr ready
   [junit4]   2> 793120 WARN  (TEST-OverseerTest.testOverseerStatsReset-seed#[DEEB100905D2259A]) [     ] o.e.j.u.s.S.config Trusting all certificates configured for Client@61063293[provider=null,keyStore=null,trustStore=null]
   [junit4]   2> 793120 WARN  (TEST-OverseerTest.testOverseerStatsReset-seed#[DEEB100905D2259A]) [     ] o.e.j.u.s.S.config No Client EndPointIdentificationAlgorithm configured for Client@61063293[provider=null,keyStore=null,trustStore=null]
   [junit4]   2> 793122 INFO  (TEST-OverseerTest.testOverseerStatsReset-seed#[DEEB100905D2259A]) [     ] o.a.s.c.OverseerElectionContext I am going to be the leader 127.0.0.1:41653_solr
   [junit4]   2> 793123 INFO  (TEST-OverseerTest.testOverseerStatsReset-seed#[DEEB100905D2259A]) [     ] o.a.s.c.Overseer Overseer (id=73018739537739777-127.0.0.1:41653_solr-n_0000000000) starting
   [junit4]   2> 793127 WARN  (TEST-OverseerTest.testOverseerStatsReset-seed#[DEEB100905D2259A]) [     ] o.a.s.c.Overseer Unable to check back-compat of .system collection - can't obtain ClusterState.
   [junit4]   2> 793130 INFO  (OverseerStateUpdate-73018739537739777-127.0.0.1:41653_solr-n_0000000000) [     ] o.a.s.c.Overseer Starting to work on the main queue : 127.0.0.1:41653_solr
   [junit4]   2> 793254 INFO  (TEST-OverseerTest.testOverseerStatsReset-seed#[DEEB100905D2259A]) [     ] o.a.s.c.ShardLeaderElectionContextBase make sure parent is created /collections/collection1/leaders/shard1
   [junit4]   2> 793255 INFO  (TEST-OverseerTest.testOverseerStatsReset-seed#[DEEB100905D2259A]) [     ] o.a.s.c.ShardLeaderElectionContextBase Creating leader registration node /collections/collection1/leaders/shard1/leader after winning as /collections/collection1/leader_elect/shard1/election/73018739537739795-node1_core1-n_0000000000
   [junit4]   2> 793256 INFO  (TEST-OverseerTest.testOverseerStatsReset-seed#[DEEB100905D2259A]) [     ] o.a.s.c.Overseer Overseer (id=73018739537739777-127.0.0.1:41653_solr-n_0000000000) closing
   [junit4]   2> 793256 INFO  (OverseerAutoScalingTriggerThread-73018739537739777-127.0.0.1:41653_solr-n_0000000000) [     ] o.a.s.c.a.OverseerTriggerThread OverseerTriggerThread woken up but we are closed, exiting.
   [junit4]   2> 793257 INFO  (OverseerStateUpdate-73018739537739777-127.0.0.1:41653_solr-n_0000000000) [     ] o.a.s.c.Overseer Overseer Loop exiting : 127.0.0.1:41653_solr
   [junit4]   2> 793258 INFO  (TEST-OverseerTest.testOverseerStatsReset-seed#[DEEB100905D2259A]) [     ] o.a.s.c.Overseer Overseer (id=73018739537739777-127.0.0.1:41653_solr-n_0000000000) closing
   [junit4]   2> 793258 INFO  (TEST-OverseerTest.testOverseerStatsReset-seed#[DEEB100905D2259A]) [     ] o.a.s.c.Overseer Overseer (id=73018739537739777-127.0.0.1:41653_solr-n_0000000000) closing
   [junit4]   2> 793259 INFO  (TEST-OverseerTest.testOverseerStatsReset-seed#[DEEB100905D2259A]) [     ] o.a.s.c.Overseer Overseer (id=73018739537739777-127.0.0.1:41653_solr-n_0000000000) closing
   [junit4]   2> 793259 INFO  (TEST-OverseerTest.testOverseerStatsReset-seed#[DEEB100905D2259A]) [     ] o.a.s.c.OverseerElectionContext I am going to be the leader 127.0.0.1:41653_solr
   [junit4]   2> 793259 WARN  (OverseerExitThread) [     ] o.a.s.c.Overseer I (id=73018739537739777-127.0.0.1:41653_solr-n_0000000000) am exiting, but I'm still the leader
   [junit4]   2> 793260 ERROR (TEST-OverseerTest.testOverseerStatsReset-seed#[DEEB100905D2259A]) [     ] o.a.s.c.LeaderElector node exists
   [junit4]   2>           => org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode = NodeExists for /overseer_elect/leader
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:126)
   [junit4]   2> org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode = NodeExists for /overseer_elect/leader
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:126) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.create(ZooKeeper.java:1538) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$makePath$9(SolrZkClient.java:529) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:71) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.makePath(SolrZkClient.java:528) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.makePath(SolrZkClient.java:472) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.makePath(SolrZkClient.java:459) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.cloud.OverseerElectionContext.runLeaderProcess(ElectionContext.java:739) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.cloud.LeaderElector.runIamLeaderProcess(LeaderElector.java:172) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.cloud.LeaderElector.checkIfIamLeader(LeaderElector.java:137) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.cloud.LeaderElector.joinElection(LeaderElector.java:309) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.cloud.LeaderElector.joinElection(LeaderElector.java:218) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.cloud.OverseerTest.testOverseerStatsReset(OverseerTest.java:757) ~[test/:?]
   [junit4]   2> 	at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?]
   [junit4]   2> 	at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:?]
   [junit4]   2> 	at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?]
   [junit4]   2> 	at java.lang.reflect.Method.invoke(Method.java:566) ~[?:?]
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1754) ~[randomizedtesting-runner-2.7.6.jar:?]
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.RandomizedRunner$8.evaluate(RandomizedRunner.java:942) ~[randomizedtesting-runner-2.7.6.jar:?]
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.RandomizedRunner$9.evaluate(RandomizedRunner.java:978) ~[randomizedtesting-runner-2.7.6.jar:?]
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.RandomizedRunner$10.evaluate(RandomizedRunner.java:992) ~[randomizedtesting-runner-2.7.6.jar:?]
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.SystemPropertiesRestoreRule$1.evaluate(SystemPropertiesRestoreRule.java:57) ~[randomizedtesting-runner-2.7.6.jar:?]
   [junit4]   2> 	at org.apache.lucene.util.TestRuleSetupTeardownChained$1.evaluate(TestRuleSetupTeardownChained.java:49) ~[java/:?]
   [junit4]   2> 	at org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:45) ~[java/:?]
   [junit4]   2> 	at org.apache.lucene.util.TestRuleThreadAndTestName$1.evaluate(TestRuleThreadAndTestName.java:48) ~[java/:?]
   [junit4]   2> 	at org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:64) ~[java/:?]
   [junit4]   2> 	at org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:47) ~[java/:?]
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36) ~[randomizedtesting-runner-2.7.6.jar:?]
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:370) ~[randomizedtesting-runner-2.7.6.jar:?]
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.ThreadLeakControl.forkTimeoutingTask(ThreadLeakControl.java:819) ~[randomizedtesting-runner-2.7.6.jar:?]
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.ThreadLeakControl$3.evaluate(ThreadLeakControl.java:470) ~[randomizedtesting-runner-2.7.6.jar:?]
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.RandomizedRunner.runSingleTest(RandomizedRunner.java:951) ~[randomizedtesting-runner-2.7.6.jar:?]
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.RandomizedRunner$5.evaluate(RandomizedRunner.java:836) ~[randomizedtesting-runner-2.7.6.jar:?]
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.RandomizedRunner$6.evaluate(RandomizedRunner.java:887) ~[randomizedtesting-runner-2.7.6.jar:?]
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:898) ~[randomizedtesting-runner-2.7.6.jar:?]
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36) ~[randomizedtesting-runner-2.7.6.jar:?]
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.SystemPropertiesRestoreRule$1.evaluate(SystemPropertiesRestoreRule.java:57) ~[randomizedtesting-runner-2.7.6.jar:?]
   [junit4]   2> 	at org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:45) ~[java/:?]
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36) ~[randomizedtesting-runner-2.7.6.jar:?]
   [junit4]   2> 	at org.apache.lucene.util.TestRuleStoreClassName$1.evaluate(TestRuleStoreClassName.java:41) ~[java/:?]
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40) ~[randomizedtesting-runner-2.7.6.jar:?]
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40) ~[randomizedtesting-runner-2.7.6.jar:?]
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36) ~[randomizedtesting-runner-2.7.6.jar:?]
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36) ~[randomizedtesting-runner-2.7.6.jar:?]
   [junit4]   2> 	at org.apache.lucene.util.TestRuleAssertionsRequired$1.evaluate(TestRuleAssertionsRequired.java:53) ~[java/:?]
   [junit4]   2> 	at org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:47) ~[java/:?]
   [junit4]   2> 	at org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:64) ~[java/:?]
   [junit4]   2> 	at org.apache.lucene.util.TestRuleIgnoreTestSuites$1.evaluate(TestRuleIgnoreTestSuites.java:54) ~[java/:?]
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36) ~[randomizedtesting-runner-2.7.6.jar:?]
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:370) ~[randomizedtesting-runner-2.7.6.jar:?]
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.ThreadLeakControl.lambda$forkTimeoutingTask$0(ThreadLeakControl.java:826) ~[randomizedtesting-runner-2.7.6.jar:?]
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:834) [?:?]
   [junit4]   2> 793260 INFO  (TEST-OverseerTest.testOverseerStatsReset-seed#[DEEB100905D2259A]) [     ] o.a.s.c.Overseer Overseer (id=73018739537739777-127.0.0.1:41653_solr-n_0000000000) closing
   [junit4]   2> 793260 INFO  (TEST-OverseerTest.testOverseerStatsReset-seed#[DEEB100905D2259A]) [     ] o.a.s.c.Overseer Overseer (id=73018739537739777-127.0.0.1:41653_solr-n_0000000000) closing
   [junit4]   2> 793260 INFO  (TEST-OverseerTest.testOverseerStatsReset-seed#[DEEB100905D2259A]) [     ] o.a.s.c.Overseer Overseer (id=73018739537739777-127.0.0.1:41653_solr-n_0000000000) closing
   [junit4]   2> 793260 INFO  (TEST-OverseerTest.testOverseerStatsReset-seed#[DEEB100905D2259A]) [     ] o.a.s.c.Overseer Overseer (id=73018739537739777-127.0.0.1:41653_solr-n_0000000000) closing
   [junit4]   2> 793261 INFO  (TEST-OverseerTest.testOverseerStatsReset-seed#[DEEB100905D2259A]) [     ] o.a.s.c.OverseerElectionContext I am going to be the leader 127.0.0.1:41653_solr
   [junit4]   2> 793261 INFO  (TEST-OverseerTest.testOverseerStatsReset-seed#[DEEB100905D2259A]) [     ] o.a.s.c.Overseer Overseer (id=73018739537739777-127.0.0.1:41653_solr-n_0000000002) starting
   [junit4]   2> 793266 INFO  (OverseerStateUpdate-73018739537739777-127.0.0.1:41653_solr-n_0000000002) [     ] o.a.s.c.Overseer Starting to work on the main queue : 127.0.0.1:41653_solr
   [junit4]   2> 793269 WARN  (TEST-OverseerTest.testOverseerStatsReset-seed#[DEEB100905D2259A]) [     ] o.a.s.c.Overseer Unable to check back-compat of .system collection - can't obtain ClusterState.
   [junit4]   2> 793270 INFO  (zkCallback-4064-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (0)
   [junit4]   2> 793270 INFO  (zkCallback-4071-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (0)
   [junit4]   2> 793271 INFO  (zkCallback-3968-thread-2) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (0)
   [junit4]   2> 793474 INFO  (closeThreadPool-4077-thread-1) [     ] o.a.s.c.Overseer Overseer (id=73018739537739777-127.0.0.1:41653_solr-n_0000000002) closing
   [junit4]   2> 793474 INFO  (OverseerAutoScalingTriggerThread-73018739537739777-127.0.0.1:41653_solr-n_0000000002) [     ] o.a.s.c.a.OverseerTriggerThread OverseerTriggerThread woken up but we are closed, exiting.
   [junit4]   2> 793474 INFO  (OverseerStateUpdate-73018739537739777-127.0.0.1:41653_solr-n_0000000002) [     ] o.a.s.c.Overseer Overseer Loop exiting : 127.0.0.1:41653_solr
   [junit4]   2> 793477 WARN  (OverseerExitThread) [     ] o.a.s.c.Overseer I (id=73018739537739777-127.0.0.1:41653_solr-n_0000000002) am exiting, but I'm still the leader
   [junit4]   2> 793497 INFO  (TEST-OverseerTest.testOverseerStatsReset-seed#[DEEB100905D2259A]) [     ] o.a.s.SolrTestCaseJ4 ###Ending testOverseerStatsReset
   [junit4]   2> 793502 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.a.s.SolrTestCaseJ4 ###Starting testRemovalOfLastReplica
   [junit4]   2> 793549 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 793550 INFO  (zkConnectionManagerCallback-4081-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 793550 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 793553 WARN  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.e.j.u.s.S.config Trusting all certificates configured for Client@58050761[provider=null,keyStore=null,trustStore=null]
   [junit4]   2> 793553 WARN  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.e.j.u.s.S.config No Client EndPointIdentificationAlgorithm configured for Client@58050761[provider=null,keyStore=null,trustStore=null]
   [junit4]   2> 793557 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 793558 INFO  (zkConnectionManagerCallback-4088-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 793558 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 793561 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 793565 INFO  (zkConnectionManagerCallback-4093-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 793565 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 793567 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.a.s.c.s.i.ZkClientClusterStateProvider Cluster at 127.0.0.1:41653/solr ready
   [junit4]   2> 793568 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.a.s.c.OverseerElectionContext I am going to be the leader 127.0.0.1:41653_solr
   [junit4]   2> 793569 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.a.s.c.Overseer Overseer (id=73018739537739797-127.0.0.1:41653_solr-n_0000000000) starting
   [junit4]   2> 793573 WARN  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.a.s.c.Overseer Unable to check back-compat of .system collection - can't obtain ClusterState.
   [junit4]   2> 793574 INFO  (OverseerStateUpdate-73018739537739797-127.0.0.1:41653_solr-n_0000000000) [     ] o.a.s.c.Overseer Starting to work on the main queue : 127.0.0.1:41653_solr
   [junit4]   2> 793582 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.a.s.c.AbstractDistribZkTestBase verifyReplicaStatus (collection1) shard=shard1 coreNodeName=core_node13
   [junit4]   2> 793701 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.a.s.c.AbstractDistribZkTestBase verifyReplicaStatus (collection1) shard=shard2 coreNodeName=core_node14
   [junit4]   2> 793702 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.a.s.c.AbstractDistribZkTestBase verifyReplicaStatus (collection1) shard=shard3 coreNodeName=core_node15
   [junit4]   2> 793703 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.a.s.c.AbstractDistribZkTestBase verifyReplicaStatus (collection1) shard=shard4 coreNodeName=core_node16
   [junit4]   2> 793703 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.a.s.c.AbstractDistribZkTestBase verifyReplicaStatus (collection1) shard=shard1 coreNodeName=core_node9
   [junit4]   2> 793704 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.a.s.c.AbstractDistribZkTestBase verifyReplicaStatus (collection1) shard=shard2 coreNodeName=core_node10
   [junit4]   2> 793704 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.a.s.c.AbstractDistribZkTestBase verifyReplicaStatus (collection1) shard=shard3 coreNodeName=core_node11
   [junit4]   2> 793705 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.a.s.c.AbstractDistribZkTestBase verifyReplicaStatus (collection1) shard=shard4 coreNodeName=core_node12
   [junit4]   2> 793705 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.a.s.c.AbstractDistribZkTestBase verifyReplicaStatus (collection1) shard=shard1 coreNodeName=core_node5
   [junit4]   2> 793705 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.a.s.c.AbstractDistribZkTestBase verifyReplicaStatus (collection1) shard=shard2 coreNodeName=core_node6
   [junit4]   2> 793706 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.a.s.c.AbstractDistribZkTestBase verifyReplicaStatus (collection1) shard=shard3 coreNodeName=core_node7
   [junit4]   2> 793706 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.a.s.c.AbstractDistribZkTestBase verifyReplicaStatus (collection1) shard=shard4 coreNodeName=core_node8
   [junit4]   2> 793707 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.a.s.c.AbstractDistribZkTestBase verifyReplicaStatus (collection1) shard=shard1 coreNodeName=core_node1
   [junit4]   2> 793707 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.a.s.c.AbstractDistribZkTestBase verifyReplicaStatus (collection1) shard=shard2 coreNodeName=core_node2
   [junit4]   2> 793707 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.a.s.c.AbstractDistribZkTestBase verifyReplicaStatus (collection1) shard=shard3 coreNodeName=core_node3
   [junit4]   2> 793708 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.a.s.c.AbstractDistribZkTestBase verifyReplicaStatus (collection1) shard=shard4 coreNodeName=core_node4
   [junit4]   2> 793712 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.a.s.c.AbstractDistribZkTestBase verifyReplicaStatus (collection1) shard=shard1 coreNodeName=core_node13
   [junit4]   2> 793815 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.a.s.c.AbstractDistribZkTestBase verifyReplicaStatus (collection1) shard=shard2 coreNodeName=core_node14
   [junit4]   2> 793815 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.a.s.c.AbstractDistribZkTestBase verifyReplicaStatus (collection1) shard=shard3 coreNodeName=core_node15
   [junit4]   2> 793816 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.a.s.c.AbstractDistribZkTestBase verifyReplicaStatus (collection1) shard=shard4 coreNodeName=core_node16
   [junit4]   2> 793816 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.a.s.c.AbstractDistribZkTestBase verifyReplicaStatus (collection1) shard=shard1 coreNodeName=core_node9
   [junit4]   2> 793817 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.a.s.c.AbstractDistribZkTestBase verifyReplicaStatus (collection1) shard=shard2 coreNodeName=core_node10
   [junit4]   2> 793817 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.a.s.c.AbstractDistribZkTestBase verifyReplicaStatus (collection1) shard=shard3 coreNodeName=core_node11
   [junit4]   2> 793817 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.a.s.c.AbstractDistribZkTestBase verifyReplicaStatus (collection1) shard=shard4 coreNodeName=core_node12
   [junit4]   2> 793818 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.a.s.c.AbstractDistribZkTestBase verifyReplicaStatus (collection1) shard=shard1 coreNodeName=core_node5
   [junit4]   2> 793818 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.a.s.c.AbstractDistribZkTestBase verifyReplicaStatus (collection1) shard=shard2 coreNodeName=core_node6
   [junit4]   2> 793819 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.a.s.c.AbstractDistribZkTestBase verifyReplicaStatus (collection1) shard=shard3 coreNodeName=core_node7
   [junit4]   2> 793819 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.a.s.c.AbstractDistribZkTestBase verifyReplicaStatus (collection1) shard=shard4 coreNodeName=core_node8
   [junit4]   2> 793819 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.a.s.c.AbstractDistribZkTestBase verifyReplicaStatus (collection1) shard=shard1 coreNodeName=core_node1
   [junit4]   2> 793820 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.a.s.c.AbstractDistribZkTestBase verifyReplicaStatus (collection1) shard=shard2 coreNodeName=core_node2
   [junit4]   2> 793820 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.a.s.c.AbstractDistribZkTestBase verifyReplicaStatus (collection1) shard=shard3 coreNodeName=core_node3
   [junit4]   2> 793821 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.a.s.c.AbstractDistribZkTestBase verifyReplicaStatus (collection1) shard=shard4 coreNodeName=core_node4
   [junit4]   2> 795669 INFO  (OverseerCollectionConfigSetProcessor-73018739537739797-127.0.0.1:41653_solr-n_0000000000) [     ] o.a.s.c.OverseerTaskProcessor According to ZK I (id=73018739537739797-127.0.0.1:41653_solr-n_0000000000) am no longer a leader. propsId=null
   [junit4]   2> 795770 INFO  (closeThreadPool-4095-thread-1) [     ] o.a.s.c.Overseer Overseer (id=73018739537739797-127.0.0.1:41653_solr-n_0000000000) closing
   [junit4]   2> 795770 INFO  (OverseerAutoScalingTriggerThread-73018739537739797-127.0.0.1:41653_solr-n_0000000000) [     ] o.a.s.c.a.OverseerTriggerThread OverseerTriggerThread woken up but we are closed, exiting.
   [junit4]   2> 795771 INFO  (OverseerStateUpdate-73018739537739797-127.0.0.1:41653_solr-n_0000000000) [     ] o.a.s.c.Overseer Overseer Loop exiting : 127.0.0.1:41653_solr
   [junit4]   2> 795772 WARN  (OverseerExitThread) [     ] o.a.s.c.Overseer Error communicating with ZooKeeper
   [junit4]   2>           => org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /overseer_elect/leader
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:134)
   [junit4]   2> org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /overseer_elect/leader
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:134) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:2131) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:338) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:71) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:338) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.cloud.Overseer$ClusterStateUpdater.checkIfIamStillLeader(Overseer.java:331) ~[java/:?]
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:834) [?:?]
   [junit4]   2> 795795 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[DEEB100905D2259A]) [     ] o.a.s.SolrTestCaseJ4 ###Ending testRemovalOfLastReplica
   [junit4]   2> 795799 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[DEEB100905D2259A]) [     ] o.a.s.SolrTestCaseJ4 ###Starting testShardLeaderChange
   [junit4]   2> 795847 INFO  (Thread-1923) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 795847 INFO  (zkConnectionManagerCallback-4099-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 795847 INFO  (Thread-1923) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 795850 WARN  (TEST-OverseerTest.testShardLeaderChange-seed#[DEEB100905D2259A]) [     ] o.e.j.u.s.S.config Trusting all certificates configured for Client@43ddfb4d[provider=null,keyStore=null,trustStore=null]
   [junit4]   2> 795850 WARN  (TEST-OverseerTest.testShardLeaderChange-seed#[DEEB100905D2259A]) [     ] o.e.j.u.s.S.config No Client EndPointIdentificationAlgorithm configured for Client@43ddfb4d[provider=null,keyStore=null,trustStore=null]
   [junit4]   2> 795851 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 795851 INFO  (zkConnectionManagerCallback-4108-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 795852 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 795853 WARN  (Thread-1923) [     ] o.e.j.u.s.S.config Trusting all certificates configured for Client@34cb7883[provider=null,keyStore=null,trustStore=null]
   [junit4]   2> 795853 WARN  (Thread-1923) [     ] o.e.j.u.s.S.config No Client EndPointIdentificationAlgorithm configured for Client@34cb7883[provider=null,keyStore=null,trustStore=null]
   [junit4]   2> 795854 WARN  (TEST-OverseerTest.testShardLeaderChange-seed#[DEEB100905D2259A]) [     ] o.e.j.u.s.S.config Trusting all certificates configured for Client@5e46cefc[provider=null,keyStore=null,trustStore=null]
   [junit4]   2> 795854 WARN  (TEST-OverseerTest.testShardLeaderChange-seed#[DEEB100905D2259A]) [     ] o.e.j.u.s.S.config No Client EndPointIdentificationAlgorithm configured for Client@5e46cefc[provider=null,keyStore=null,trustStore=null]
   [junit4]   2> 795857 INFO  (Thread-1923) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 795858 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 795863 INFO  (zkConnectionManagerCallback-4115-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 795863 INFO  (zkConnectionManagerCallback-4118-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 795863 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 795863 INFO  (Thread-1923) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 795865 INFO  (Thread-1923) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 795866 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 795869 INFO  (zkConnectionManagerCallback-4128-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 795869 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 795870 INFO  (zkConnectionManagerCallback-4124-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 795870 INFO  (Thread-1923) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 795871 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[DEEB100905D2259A]) [     ] o.a.s.c.s.i.ZkClientClusterStateProvider Cluster at 127.0.0.1:41653/solr ready
   [junit4]   2> 795871 INFO  (Thread-1923) [     ] o.a.s.c.s.i.ZkClientClusterStateProvider Cluster at 127.0.0.1:41653/solr ready
   [junit4]   2> 795873 INFO  (Thread-1923) [     ] o.a.s.c.OverseerElectionContext I am going to be the leader 127.0.0.1:41653_solr
   [junit4]   2> 795873 INFO  (Thread-1923) [     ] o.a.s.c.Overseer Overseer (id=73018739537739800-127.0.0.1:41653_solr-n_0000000000) starting
   [junit4]   2> 795874 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 795878 INFO  (zkConnectionManagerCallback-4130-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 795878 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[DEEB100905D2259A]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 795882 INFO  (OverseerStateUpdate-73018739537739800-127.0.0.1:41653_solr-n_0000000000) [     ] o.a.s.c.Overseer Starting to work on the main queue : 127.0.0.1:41653_solr
   [junit4]   2> 795882 INFO  (zkCallback-3968-thread-2) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 795883 INFO  (OverseerStateUpdate-73018739537739800-127.0.0.1:41653_solr-n_0000000000) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 795888 WARN  (Thread-1923) [     ] o.a.s.c.Overseer Unable to check back-compat of .system collection - can't obtain ClusterState.
   [junit4]   2> 795888 INFO  (Thread-1923) [     ] o.a.s.c.OverseerTest Killing overseer.
   [junit4]   2> 795889 INFO  (zkCallback-4127-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 795895 INFO  (zkCallback-4129-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 795898 INFO  (zkCallback-4123-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 795998 INFO  (Thread-1923) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 795998 INFO  (zkCallback-4107-thread-1) [     ] o.a.s.c.OverseerElectionContext I am going to be the leader 127.0.0.1:41653_solr
   [junit4]   2> 795999 INFO  (zkConnectionManagerCallback-4134-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 795999 INFO  (Thread-1923) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 796000 INFO  (zkCallback-4107-thread-1) [     ] o.a.s.c.Overseer Overseer (id=73018739537739801-127.0.0.1:41653_solr-n_0000000001) starting
   [junit4]   2> 796003 WARN  (zkCallback-4107-thread-1) [     ] o.a.s.c.Overseer Unable to check back-compat of .system collection - can't obtain ClusterState.
   [junit4]   2> 796003 INFO  (OverseerStateUpdate-73018739537739801-127.0.0.1:41653_solr-n_0000000001) [     ] o.a.s.c.Overseer Starting to work on the main queue : 127.0.0.1:41653_solr
   [junit4]   2> 796106 WARN  (Thread-1923) [     ] o.e.j.u.s.S.config Trusting all certificates configured for Client@2cdc9936[provider=null,keyStore=null,trustStore=null]
   [junit4]   2> 796106 WARN  (Thread-1923) [     ] o.e.j.u.s.S.config No Client EndPointIdentificationAlgorithm configured for Client@2cdc9936[provider=null,keyStore=null,trustStore=null]
   [junit4]   2> 796107 INFO  (Thread-1923) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 796108 INFO  (zkConnectionManagerCallback-4141-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 796108 INFO  (Thread-1923) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 796111 INFO  (Thread-1923) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 796113 INFO  (zkConnectionManagerCallback-4146-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 796113 INFO  (Thread-1923) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 796114 INFO  (Thread-1923) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 796115 INFO  (Thread-1923) [     ] o.a.s.c.s.i.ZkClientClusterStateProvider Cluster at 127.0.0.1:41653/solr ready
   [junit4]   2> 796115 INFO  (Thread-1923) [     ] o.a.s.c.OverseerElectionContext I am going to be the leader 127.0.0.1:41653_solr
   [junit4]   2> 796116 INFO  (Thread-1923) [     ] o.a.s.c.Overseer Overseer (id=73018739537739807-127.0.0.1:41653_solr-n_0000000002) starting
   [junit4]   2> 796118 INFO  (OverseerStateUpdate-73018739537739807-127.0.0.1:41653_solr-n_0000000002) [     ] o.a.s.c.Overseer Starting to work on the main queue : 127.0.0.1:41653_solr
   [junit4]   2> 796119 INFO  (OverseerStateUpdate-73018739537739807-127.0.0.1:41653_solr-n_0000000002) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 796122 WARN  (OverseerStateUpdate-73018739537739807-127.0.0.1:41653_solr-n_0000000002) [     ] o.a.s.c.o.ClusterStateMutator Collection collection1 already exists. exit
   [junit4]   2> 796122 WARN  (Thread-1923) [     ] o.a.s.c.Overseer Unable to check back-compat of .system collection - can't obtain ClusterState.
   [junit4]   2> 796126 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[DEEB100905D2259A]) [     ] o.a.s.c.ShardLeaderElectionContextBase make sure parent is created /collections/collection1/leaders/shard1
   [junit4]   2> 796130 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[DEEB100905D2259A]) [     ] o.a.s.c.ShardLeaderElectionContextBase Creating leader registration node /collections/collection1/leaders/shard1/leader after winning as /collections/collection1/leader_elect/shard1/election/73018739537739806-node1_core1-n_0000000000
   [junit4]   2> org.apache.solr.common.SolrException: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /overseer/queue
   [junit4]   2> 	at org.apache.solr.cloud.ZkDistributedQueue.<init>(ZkDistributedQueue.java:129)
   [junit4]   2> 	at org.apache.solr.cloud.Overseer.getStateUpdateQueue(Overseer.java:824)
   [junit4]   2> 	at org.apache.solr.cloud.Overseer.getStateUpdateQueue(Overseer.java:812)
   [junit4]   2> 	at org.apache.solr.cloud.Overseer.offerStateUpdate(Overseer.java:985)
   [junit4]   2> 	at org.apache.solr.cloud.ShardLeaderElectionContextBase.runLeaderProcess(ElectionContext.java:251)
   [junit4]   2> 	at org.apache.solr.cloud.LeaderElector.runIamLeaderProcess(LeaderElector.java:172)
   [junit4]   2> 	at org.apache.solr.cloud.LeaderElector.checkIfIamLeader(LeaderElector.java:137)
   [junit4]   2> 	at org.apache.solr.cloud.LeaderElector.joinElection(LeaderElector.java:309)
   [junit4]   2> 	at org.apache.solr.cloud.LeaderElector.joinElection(LeaderElector.java:218)
   [junit4]   2> 	at org.apache.solr.cloud.OverseerTest$MockZKController.publishState(OverseerTest.java:250)
   [junit4]   2> 	at org.apache.solr.cloud.OverseerTest.testShardLeaderChange(OverseerTest.java:925)
   [junit4]   2> 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   [junit4]   2> 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
   [junit4]   2> 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   [junit4]   2> 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1754)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.RandomizedRunner$8.evaluate(RandomizedRunner.java:942)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.RandomizedRunner$9.evaluate(RandomizedRunner.java:978)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.RandomizedRunner$10.evaluate(RandomizedRunner.java:992)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.SystemPropertiesRestoreRule$1.evaluate(SystemPropertiesRestoreRule.java:57)
   [junit4]   2> 	at org.apache.lucene.util.TestRuleSetupTeardownChained$1.evaluate(TestRuleSetupTeardownChained.java:49)
   [junit4]   2> 	at org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:45)
   [junit4]   2> 	at org.apache.lucene.util.TestRuleThreadAndTestName$1.evaluate(TestRuleThreadAndTestName.java:48)
   [junit4]   2> 	at org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:64)
   [junit4]   2> 	at org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:47)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:370)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.ThreadLeakControl.forkTimeoutingTask(ThreadLeakControl.java:819)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.ThreadLeakControl$3.evaluate(ThreadLeakControl.java:470)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.RandomizedRunner.runSingleTest(RandomizedRunner.java:951)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.RandomizedRunner$5.evaluate(RandomizedRunner.java:836)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.RandomizedRunner$6.evaluate(RandomizedRunner.java:887)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:898)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.SystemPropertiesRestoreRule$1.evaluate(SystemPropertiesRestoreRule.java:57)
   [junit4]   2> 	at org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:45)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
   [junit4]   2> 	at org.apache.lucene.util.TestRuleStoreClassName$1.evaluate(TestRuleStoreClassName.java:41)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
   [junit4]   2> 	at org.apache.lucene.util.TestRuleAssertionsRequired$1.evaluate(TestRuleAssertionsRequired.java:53)
   [junit4]   2> 	at org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:47)
   [junit4]   2> 	at org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:64)
   [junit4]   2> 	at org.apache.lucene.util.TestRuleIgnoreTestSuites$1.evaluate(TestRuleIgnoreTestSuites.java:54)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:370)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.ThreadLeakControl.lambda$forkTimeoutingTask$0(ThreadLeakControl.java:826)
   [junit4]   2> 	at java.base/java.lang.Thread.run(Thread.java:834)
   [junit4]   2> Caused by: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /overseer/queue
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:134)
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54)
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:2021)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$exists$3(SolrZkClient.java:314)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:71)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.exists(SolrZkClient.java:314)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.ensureExists(ZkCmdExecutor.java:108)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.ensureExists(ZkCmdExecutor.java:93)
   [junit4]   2> 	at org.apache.solr.cloud.ZkDistributedQueue.<init>(ZkDistributedQueue.java:127)
   [junit4]   2> 	... 49 more
   [junit4]   2> org.apache.solr.common.SolrException: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /overseer/queue
   [junit4]   2> 	at org.apache.solr.cloud.ZkDistributedQueue.<init>(ZkDistributedQueue.java:129)
   [junit4]   2> 	at org.apache.solr.cloud.Overseer.getStateUpdateQueue(Overseer.java:824)
   [junit4]   2> 	at org.apache.solr.cloud.Overseer.getStateUpdateQueue(Overseer.java:812)
   [junit4]   2> 	at org.apache.solr.cloud.OverseerTest$MockZKController.publishState(OverseerTest.java:220)
   [junit4]   2> 	at org.apache.solr.cloud.OverseerTest.testShardLeaderChange(OverseerTest.java:925)
   [junit4]   2> 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   [junit4]   2> 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
   [junit4]   2> 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   [junit4]   2> 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1754)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.RandomizedRunner$8.evaluate(RandomizedRunner.java:942)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.RandomizedRunner$9.evaluate(RandomizedRunner.java:978)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.RandomizedRunner$10.evaluate(RandomizedRunner.java:992)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.SystemPropertiesRestoreRule$1.evaluate(SystemPropertiesRestoreRule.java:57)
   [junit4]   2> 	at org.apache.lucene.util.TestRuleSetupTeardownChained$1.evaluate(TestRuleSetupTeardownChained.java:49)
   [junit4]   2> 	at org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:45)
   [junit4]   2> 	at org.apache.lucene.util.TestRuleThreadAndTestName$1.evaluate(TestRuleThreadAndTestName.java:48)
   [junit4]   2> 	at org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:64)
   [junit4]   2> 	at org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:47)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:370)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.ThreadLeakControl.forkTimeoutingTask(ThreadLeakControl.java:819)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.ThreadLeakControl$3.evaluate(ThreadLeakControl.java:470)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.RandomizedRunner.runSingleTest(RandomizedRunner.java:951)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.RandomizedRunner$5.evaluate(RandomizedRunner.java:836)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.RandomizedRunner$6.evaluate(RandomizedRunner.java:887)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:898)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.SystemPropertiesRestoreRule$1.evaluate(SystemPropertiesRestoreRule.java:57)
   [junit4]   2> 	at org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:45)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
   [junit4]   2> 	at org.apache.lucene.util.TestRuleStoreClassName$1.evaluate(TestRuleStoreClassName.java:41)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
   [junit4]   2> 	at org.apache.lucene.util.TestRuleAssertionsRequired$1.evaluate(TestRuleAssertionsRequired.java:53)
   [junit4]   2> 	at org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:47)
   [junit4]   2> 	at org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:64)
   [junit4]   2> 	at org.apache.lucene.util.TestRuleIgnoreTestSuites$1.evaluate(TestRuleIgnoreTestSuites.java:54)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:370)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.ThreadLeakControl.lambda$forkTimeoutingTask$0(ThreadLeakControl.java:826)
   [junit4]   2> 	at java.base/java.lang.Thread.run(Thread.java:834)
   [junit4]   2> Caused by: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /overseer/queue
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:134)
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54)
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:2021)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$exists$3(SolrZkClient.java:314)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:71)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.exists(SolrZkClient.java:314)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.ensureExists(ZkCmdExecutor.java:108)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.ensureExists(ZkCmdExecutor.java:93)
   [junit4]   2> 	at org.apache.solr.cloud.ZkDistributedQueue.<init>(ZkDistributedQueue.java:127)
   [junit4]   2> 	... 43 more
   [junit4]   2> org.apache.solr.common.SolrException: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /overseer/queue
   [junit4]   2> 	at org.apache.solr.cloud.ZkDistributedQueue.<init>(ZkDistributedQueue.java:129)
   [junit4]   2> 	at org.apache.solr.cloud.Overseer.getStateUpdateQueue(Overseer.java:824)
   [ju

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

-seed#[DEEB100905D2259A]) [     ] o.a.s.c.AbstractDistribZkTestBase verifyReplicaStatus (c1) shard=shard1 coreNodeName=core_node1
   [junit4]   2> 815294 INFO  (OverseerStateUpdate-73018739537739905-127.0.0.1:41653_solr-n_0000000000) [     ] o.a.s.c.o.SliceMutator createReplica() {
   [junit4]   2>   "operation":"addreplica",
   [junit4]   2>   "collection":"test",
   [junit4]   2>   "shard":"x",
   [junit4]   2>   "base_url":"http://127.0.0.1/solr",
   [junit4]   2>   "core_node_name":"core_node1",
   [junit4]   2>   "node_name":"node1",
   [junit4]   2>   "core":"core1",
   [junit4]   2>   "state":"down"} 
   [junit4]   2> 815395 INFO  (zkCallback-3968-thread-2) [     ] o.a.s.c.c.ZkStateReader A cluster state change: [WatchedEvent state:SyncConnected type:NodeCreated path:/collections/test/state.json] for collection [test] has occurred - updating... (live nodes size: [0])
   [junit4]   2> 815396 ERROR (OverseerStateUpdate-73018739537739905-127.0.0.1:41653_solr-n_0000000000) [     ] o.a.s.c.Overseer Exception in Overseer main queue loop
   [junit4]   2>           => org.apache.zookeeper.KeeperException$BadVersionException: KeeperErrorCode = BadVersion for /clusterstate.json
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:122)
   [junit4]   2> org.apache.zookeeper.KeeperException$BadVersionException: KeeperErrorCode = BadVersion for /clusterstate.json
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:122) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.setData(ZooKeeper.java:2384) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$setData$6(SolrZkClient.java:350) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:71) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.setData(SolrZkClient.java:350) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.cloud.overseer.ZkStateWriter.writePendingUpdates(ZkStateWriter.java:220) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.cloud.Overseer$ClusterStateUpdater.run(Overseer.java:259) ~[java/:?]
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:834) [?:?]
   [junit4]   2> 815398 INFO  (TEST-OverseerTest.testExternalClusterStateChangeBehavior-seed#[DEEB100905D2259A]) [     ] o.a.s.c.AbstractDistribZkTestBase verifyReplicaStatus (test) shard=x coreNodeName=core_node1
   [junit4]   2> 815401 INFO  (TEST-OverseerTest.testExternalClusterStateChangeBehavior-seed#[DEEB100905D2259A]) [     ] o.a.s.c.AbstractDistribZkTestBase verifyReplicaStatus (c1) shard=shard1 coreNodeName=core_node1
   [junit4]   2> 815705 INFO  (closeThreadPool-4588-thread-1) [     ] o.a.s.c.Overseer Overseer (id=73018739537739905-127.0.0.1:41653_solr-n_0000000000) closing
   [junit4]   2> 815705 INFO  (OverseerStateUpdate-73018739537739905-127.0.0.1:41653_solr-n_0000000000) [     ] o.a.s.c.Overseer Overseer Loop exiting : 127.0.0.1:41653_solr
   [junit4]   2> 815705 INFO  (OverseerAutoScalingTriggerThread-73018739537739905-127.0.0.1:41653_solr-n_0000000000) [     ] o.a.s.c.a.OverseerTriggerThread OverseerTriggerThread woken up but we are closed, exiting.
   [junit4]   2> 815707 WARN  (OverseerExitThread) [     ] o.a.s.c.Overseer Error communicating with ZooKeeper
   [junit4]   2>           => org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /overseer_elect/leader
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:134)
   [junit4]   2> org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /overseer_elect/leader
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:134) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:2131) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:338) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:71) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:338) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.cloud.Overseer$ClusterStateUpdater.checkIfIamStillLeader(Overseer.java:331) ~[java/:?]
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:834) [?:?]
   [junit4]   2> 815729 INFO  (TEST-OverseerTest.testExternalClusterStateChangeBehavior-seed#[DEEB100905D2259A]) [     ] o.a.s.SolrTestCaseJ4 ###Ending testExternalClusterStateChangeBehavior
   [junit4]   1> / (0)
   [junit4]   1> 
   [junit4]   2> 815731 INFO  (SUITE-OverseerTest-seed#[DEEB100905D2259A]-worker) [     ] o.a.s.c.ZkTestServer Shutting down ZkTestServer.
   [junit4]   2> 815933 WARN  (ZkTestServer Run Thread) [     ] o.a.s.c.ZkTestServer Watch limit violations: 
   [junit4]   2> Maximum concurrent create/delete watches above limit:
   [junit4]   2> 
   [junit4]   2> 	143	/solr/collections/collection1/state.json
   [junit4]   2> 	105	/solr/aliases.json
   [junit4]   2> 	105	/solr/clusterprops.json
   [junit4]   2> 	13	/solr/collections/collection2/state.json
   [junit4]   2> 	5	/solr/collections/c1/state.json
   [junit4]   2> 	4	/solr/collections/collection3/state.json
   [junit4]   2> 	3	/solr/collections/collection0/state.json
   [junit4]   2> 	2	/solr/collections/collection4/state.json
   [junit4]   2> 
   [junit4]   2> Maximum concurrent data watches above limit:
   [junit4]   2> 
   [junit4]   2> 	969	/solr/clusterstate.json
   [junit4]   2> 	27	/solr/autoscaling.json
   [junit4]   2> 	3	/solr/collections/test/state.json
   [junit4]   2> 
   [junit4]   2> Maximum concurrent children watches above limit:
   [junit4]   2> 
   [junit4]   2> 	904	/solr/live_nodes
   [junit4]   2> 	250	/solr/overseer/queue
   [junit4]   2> 	164	/solr/collections
   [junit4]   2> 	29	/solr/overseer/queue-work
   [junit4]   2> 	27	/solr/autoscaling/events/.scheduled_maintenance
   [junit4]   2> 	27	/solr/autoscaling/events/.auto_add_replicas
   [junit4]   2> 	25	/solr/overseer/collection-queue-work
   [junit4]   2> 
   [junit4]   2> 815941 INFO  (SUITE-OverseerTest-seed#[DEEB100905D2259A]-worker) [     ] o.a.s.c.ZkTestServer waitForServerDown: 127.0.0.1:41653
   [junit4]   2> 815941 INFO  (SUITE-OverseerTest-seed#[DEEB100905D2259A]-worker) [     ] o.a.s.c.ZkTestServer parse host and port list: 127.0.0.1:41653
   [junit4]   2> 815941 INFO  (SUITE-OverseerTest-seed#[DEEB100905D2259A]-worker) [     ] o.a.s.c.ZkTestServer connecting to 127.0.0.1 41653
   [junit4]   2> 815941 INFO  (SUITE-OverseerTest-seed#[DEEB100905D2259A]-worker) [     ] o.a.s.SolrTestCaseJ4 ------------------------------------------------------- Done waiting for tracked resources to be released
   [junit4]   2> Jan 05, 2020 5:12:29 PM com.carrotsearch.randomizedtesting.ThreadLeakControl checkThreadLeaks
   [junit4]   2> WARNING: Will linger awaiting termination of 1 leaked thread(s).
   [junit4]   2> NOTE: test params are: codec=Lucene84, sim=Asserting(org.apache.lucene.search.similarities.AssertingSimilarity@251af1a7), locale=bs-Latn-BA, timezone=Australia/Broken_Hill
   [junit4]   2> NOTE: Linux 4.15.0-54-generic amd64/Oracle Corporation 11.0.4 (64-bit)/cpus=4,threads=1,free=286523560,total=536870912
   [junit4]   2> NOTE: All tests run in this JVM: [TestTolerantSearch, HttpPartitionTest, TestUniqueKeyFieldResource, RegexBytesRefFilterTest, TestSimScenario, DistribJoinFromCollectionTest, TestSort, PrimUtilsTest, TestCloudManagedSchema, DistributedIntervalFacetingTest, ConfigSetsAPITest, ConfigureRecoveryStrategyTest, DistributedFacetPivotSmallAdvancedTest, TestClusterProperties, TestMaxTokenLenTokenizer, LegacyCloudClusterPropTest, HighlighterTest, FileUtilsTest, TestPerFieldSimilarityWithDefaultOverride, CdcrUpdateLogTest, TestChildDocTransformerHierarchy, TestCloudConsistency, TestJoin, TestFieldCacheSortRandom, TestEmbeddedSolrServerConstructors, TestCoreContainer, ResponseBuilderTest, TestSchemalessBufferedUpdates, MetricTriggerIntegrationTest, DocumentBuilderTest, SolrShardReporterTest, TestGraphTermsQParserPlugin, LoggingHandlerTest, TestElisionMultitermQuery, MetricsHandlerTest, PreAnalyzedFieldManagedSchemaCloudTest, TestShardHandlerFactory, TestSolrCloudWithSecureImpersonation, ShardsWhitelistTest, TestNoOpRegenerator, TestSystemIdResolver, TestSimDistribStateManager, SynonymTokenizerTest, TestSnapshotCloudManager, TestCloudPhrasesIdentificationComponent, DocValuesNotIndexedTest, JSONWriterTest, TestInPlaceUpdatesRequiredField, DefaultValueUpdateProcessorTest, BJQParserTest, TestSegmentSorting, TestRangeQuery, TestPKIAuthenticationPlugin, LeaderFailureAfterFreshStartTest, TestGraphMLResponseWriter, TestCollapseQParserPlugin, TestHdfsUpdateLog, MultiThreadedOCPTest, TestRetrieveFieldsOptimizer, QueryEqualityTest, ExitableDirectoryReaderTest, MoveReplicaHDFSTest, HdfsSyncSliceTest, TestWaitForStateWithJettyShutdowns, SearchRateTriggerTest, TestSolrCloudSnapshots, HdfsRecoverLeaseTest, TestQueryingOnDownCollection, LeaderElectionIntegrationTest, SchemaVersionSpecificBehaviorTest, TermVectorComponentTest, XCJFQueryTest, TestNestedUpdateProcessor, SystemInfoHandlerTest, TestReplicationHandlerBackup, DeleteNodeTest, ScheduledTriggerIntegrationTest, RemoteQueryErrorTest, TestManagedSynonymGraphFilterFactory, NumericFieldsTest, SpatialFilterTest, TestFilteredDocIdSet, TestFieldCache, HLLSerializationTest, AutoAddReplicasPlanActionTest, TestLegacyBM25SimilarityFactory, OverseerTest]
   [junit4] Completed [261/897 (1!)] on J2 in 26.62s, 14 tests, 1 error, 1 skipped <<< FAILURES!

[...truncated 55102 lines...]