[GitHub] [bookkeeper] dlg99 opened a new issue #3063: Flaky-test: org.apache.distributedlog.TestBKDistributedLogManager testTwoWritersOnLockDisabled flakes with "KeeperErrorCode = BadVersion"

[GitBox <gi...@apache.org>]

dlg99 opened a new issue #3063:
URL: https://github.com/apache/bookkeeper/issues/3063


   happens on attempt to create second writer immediately after the first one.
   i only was able to repro this by running the whole suite, rtest passses if I run just this test alone.
   Sleep between writer creations helps with the test but probably this worth looking at.
   
   ```
           AsyncLogWriter writer1 = Utils.ioResult(manager.openAsyncLogWriter());
           Utils.ioResult(writer1.write(DLMTestUtil.getLogRecordInstance(1L)));
           Assert.assertEquals(1L, writer1.getLastTxId());
           // some flaky ZK errors after that
           //Thread.sleep(1000);
           AsyncLogWriter writer2 = Utils.ioResult(manager.openAsyncLogWriter());
   
   ```
   
   ```
   13:48:06.116 [Time-limited test-EventThread] ERROR org.apache.distributedlog.bk.SimpleLedgerAllocator - Fail mark ledger 98 as allocated under /messaging/distributedlog/distrlog-two-writers-lock-disabled/distrlog-two-writers-lock-disabled/<default>/allocation : 
   org.apache.zookeeper.KeeperException$BadVersionException: KeeperErrorCode = BadVersion
   	at org.apache.zookeeper.KeeperException.create(KeeperException.java:122) ~[zookeeper-3.6.2.jar:3.6.2]
   	at org.apache.distributedlog.util.Utils$5.processResult(Utils.java:395) [main/:?]
   	at org.apache.bookkeeper.zookeeper.ZooKeeperClient$22$1.processResult(ZooKeeperClient.java:1094) [bookkeeper-server.jar:?]
   	at org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:637) [zookeeper-3.6.2.jar:3.6.2]
   	at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:562) [zookeeper-3.6.2.jar:3.6.2]
   
   Encountered zookeeper exception on waiting result
   org.apache.distributedlog.exceptions.ZKException: Encountered zookeeper exception on waiting result
   	at app//org.apache.distributedlog.util.Utils.lambda$ioResult$0(Utils.java:693)
   	at app//org.apache.bookkeeper.common.concurrent.FutureUtils.result(FutureUtils.java:77)
   	at app//org.apache.distributedlog.util.Utils.ioResult(Utils.java:687)
   	at app//org.apache.distributedlog.TestBKDistributedLogManager.testTwoWritersOnLockDisabled(TestBKDistributedLogManager.java:365)
   	at java.base@11.0.11/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   	at java.base@11.0.11/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
   	at java.base@11.0.11/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   	at java.base@11.0.11/java.lang.reflect.Method.invoke(Method.java:566)
   	at app//org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
   	at app//org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
   	at app//org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
   	at app//org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
   	at app//org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:298)
   	at app//org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:292)
   	at java.base@11.0.11/java.util.concurrent.FutureTask.run(FutureTask.java:264)
   	at java.base@11.0.11/java.lang.Thread.run(Thread.java:829)
   Caused by: org.apache.zookeeper.KeeperException$BadVersionException: KeeperErrorCode = BadVersion
   	at app//org.apache.zookeeper.KeeperException.create(KeeperException.java:122)
   	at app//org.apache.distributedlog.util.Utils$5.processResult(Utils.java:395)
   	at app//org.apache.bookkeeper.zookeeper.ZooKeeperClient$22$1.processResult(ZooKeeperClient.java:1094)
   	at app//org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:637)
   	at app//org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:562)
   
   ```


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