[JENKINS] Lucene-Solr-7.x-Solaris (64bit/jdk1.8.0) - Build # 521 - Failure!

Policeman Jenkins Server Mon, 26 Mar 2018 05:57:46 -0700

Build: https://jenkins.thetaphi.de/job/Lucene-Solr-7.x-Solaris/521/
Java: 64bit/jdk1.8.0 -XX:-UseCompressedOops -XX:+UseG1GC


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

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

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


        at __randomizedtesting.SeedInfo.seed([53296A6FBD206F98]:0)
        at org.junit.Assert.fail(Assert.java:93)
        at org.junit.Assert.assertTrue(Assert.java:43)
        at org.junit.Assert.assertNull(Assert.java:551)
        at 
org.apache.solr.SolrTestCaseJ4.teardownTestCases(SolrTestCaseJ4.java:302)
        at sun.reflect.GeneratedMethodAccessor99.invoke(Unknown Source)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1737)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:897)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.rules.SystemPropertiesRestoreRule$1.evaluate(SystemPropertiesRestoreRule.java:57)
        at 
org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:45)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
org.apache.lucene.util.TestRuleStoreClassName$1.evaluate(TestRuleStoreClassName.java:41)
        at 
com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
        at 
com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
org.apache.lucene.util.TestRuleAssertionsRequired$1.evaluate(TestRuleAssertionsRequired.java:53)
        at 
org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:47)
        at 
org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:64)
        at 
org.apache.lucene.util.TestRuleIgnoreTestSuites$1.evaluate(TestRuleIgnoreTestSuites.java:54)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:368)
        at java.lang.Thread.run(Thread.java:748)


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

Error Message:
1 thread leaked from SUITE scope at org.apache.solr.cloud.ZkControllerTest:     
1) Thread[id=24758, 
name=OverseerAutoScalingTriggerThread-72125870161657858-127.0.0.1:8983_solr-n_0000000001,
 state=RUNNABLE, group=Overseer autoscaling triggers]         at 
java.net.URLStreamHandler.toExternalForm(URLStreamHandler.java:503)         at 
java.net.URL.toExternalForm(URL.java:929)         at 
java.net.URL.toString(URL.java:915)         at 
org.apache.logging.log4j.core.impl.ThrowableProxy.toCacheEntry(ThrowableProxy.java:658)
         at 
org.apache.logging.log4j.core.impl.ThrowableProxy.toExtendedStackTrace(ThrowableProxy.java:738)
         at 
org.apache.logging.log4j.core.impl.ThrowableProxy.<init>(ThrowableProxy.java:164)
         at 
org.apache.logging.log4j.core.impl.ThrowableProxy.<init>(ThrowableProxy.java:141)
         at 
org.apache.logging.log4j.core.impl.ThrowableProxy.<init>(ThrowableProxy.java:122)
         at 
org.apache.logging.log4j.core.impl.Log4jLogEvent.getThrownProxy(Log4jLogEvent.java:605)
         at 
org.apache.logging.log4j.core.pattern.ExtendedThrowablePatternConverter.format(ExtendedThrowablePatternConverter.java:64)
         at 
org.apache.logging.log4j.core.pattern.PatternFormatter.format(PatternFormatter.java:38)
         at 
org.apache.logging.log4j.core.layout.PatternLayout$PatternSerializer.toSerializable(PatternLayout.java:334)
         at 
org.apache.logging.log4j.core.layout.PatternLayout.toText(PatternLayout.java:233)
         at 
org.apache.logging.log4j.core.layout.PatternLayout.encode(PatternLayout.java:218)
         at 
org.apache.logging.log4j.core.layout.PatternLayout.encode(PatternLayout.java:58)
         at 
org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.directEncodeEvent(AbstractOutputStreamAppender.java:177)
         at 
org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.tryAppend(AbstractOutputStreamAppender.java:170)
         at 
org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.append(AbstractOutputStreamAppender.java:161)
         at 
org.apache.logging.log4j.core.config.AppenderControl.tryCallAppender(AppenderControl.java:156)
         at 
org.apache.logging.log4j.core.config.AppenderControl.callAppender0(AppenderControl.java:129)
         at 
org.apache.logging.log4j.core.config.AppenderControl.callAppenderPreventRecursion(AppenderControl.java:120)
         at 
org.apache.logging.log4j.core.config.AppenderControl.callAppender(AppenderControl.java:84)
         at 
org.apache.logging.log4j.core.config.LoggerConfig.callAppenders(LoggerConfig.java:448)
         at 
org.apache.logging.log4j.core.config.LoggerConfig.processLogEvent(LoggerConfig.java:433)
         at 
org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:417)    
     at 
org.apache.logging.log4j.core.config.LoggerConfig.logParent(LoggerConfig.java:439)
         at 
org.apache.logging.log4j.core.config.LoggerConfig.processLogEvent(LoggerConfig.java:434)
         at 
org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:417)    
     at 
org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:403)    
     at 
org.apache.logging.log4j.core.config.DefaultReliabilityStrategy.log(DefaultReliabilityStrategy.java:49)
         at org.apache.logging.log4j.core.Logger.logMessage(Logger.java:146)    
     at 
org.apache.logging.log4j.spi.AbstractLogger.tryLogMessage(AbstractLogger.java:2170)
         at 
org.apache.logging.log4j.spi.AbstractLogger.logMessageTrackRecursion(AbstractLogger.java:2125)
         at 
org.apache.logging.log4j.spi.AbstractLogger.logMessageSafely(AbstractLogger.java:2108)
         at 
org.apache.logging.log4j.spi.AbstractLogger.logMessage(AbstractLogger.java:2002)
         at 
org.apache.logging.log4j.spi.AbstractLogger.logIfEnabled(AbstractLogger.java:1974)
         at org.apache.logging.slf4j.Log4jLogger.error(Log4jLogger.java:319)    
     at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:142)
         at java.lang.Thread.run(Thread.java:748)

Stack Trace:
com.carrotsearch.randomizedtesting.ThreadLeakError: 1 thread leaked from SUITE 
scope at org.apache.solr.cloud.ZkControllerTest: 
   1) Thread[id=24758, 
name=OverseerAutoScalingTriggerThread-72125870161657858-127.0.0.1:8983_solr-n_0000000001,
 state=RUNNABLE, group=Overseer autoscaling triggers]
        at java.net.URLStreamHandler.toExternalForm(URLStreamHandler.java:503)
        at java.net.URL.toExternalForm(URL.java:929)
        at java.net.URL.toString(URL.java:915)
        at 
org.apache.logging.log4j.core.impl.ThrowableProxy.toCacheEntry(ThrowableProxy.java:658)
        at 
org.apache.logging.log4j.core.impl.ThrowableProxy.toExtendedStackTrace(ThrowableProxy.java:738)
        at 
org.apache.logging.log4j.core.impl.ThrowableProxy.<init>(ThrowableProxy.java:164)
        at 
org.apache.logging.log4j.core.impl.ThrowableProxy.<init>(ThrowableProxy.java:141)
        at 
org.apache.logging.log4j.core.impl.ThrowableProxy.<init>(ThrowableProxy.java:122)
        at 
org.apache.logging.log4j.core.impl.Log4jLogEvent.getThrownProxy(Log4jLogEvent.java:605)
        at 
org.apache.logging.log4j.core.pattern.ExtendedThrowablePatternConverter.format(ExtendedThrowablePatternConverter.java:64)
        at 
org.apache.logging.log4j.core.pattern.PatternFormatter.format(PatternFormatter.java:38)
        at 
org.apache.logging.log4j.core.layout.PatternLayout$PatternSerializer.toSerializable(PatternLayout.java:334)
        at 
org.apache.logging.log4j.core.layout.PatternLayout.toText(PatternLayout.java:233)
        at 
org.apache.logging.log4j.core.layout.PatternLayout.encode(PatternLayout.java:218)
        at 
org.apache.logging.log4j.core.layout.PatternLayout.encode(PatternLayout.java:58)
        at 
org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.directEncodeEvent(AbstractOutputStreamAppender.java:177)
        at 
org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.tryAppend(AbstractOutputStreamAppender.java:170)
        at 
org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.append(AbstractOutputStreamAppender.java:161)
        at 
org.apache.logging.log4j.core.config.AppenderControl.tryCallAppender(AppenderControl.java:156)
        at 
org.apache.logging.log4j.core.config.AppenderControl.callAppender0(AppenderControl.java:129)
        at 
org.apache.logging.log4j.core.config.AppenderControl.callAppenderPreventRecursion(AppenderControl.java:120)
        at 
org.apache.logging.log4j.core.config.AppenderControl.callAppender(AppenderControl.java:84)
        at 
org.apache.logging.log4j.core.config.LoggerConfig.callAppenders(LoggerConfig.java:448)
        at 
org.apache.logging.log4j.core.config.LoggerConfig.processLogEvent(LoggerConfig.java:433)
        at 
org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:417)
        at 
org.apache.logging.log4j.core.config.LoggerConfig.logParent(LoggerConfig.java:439)
        at 
org.apache.logging.log4j.core.config.LoggerConfig.processLogEvent(LoggerConfig.java:434)
        at 
org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:417)
        at 
org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:403)
        at 
org.apache.logging.log4j.core.config.DefaultReliabilityStrategy.log(DefaultReliabilityStrategy.java:49)
        at org.apache.logging.log4j.core.Logger.logMessage(Logger.java:146)
        at 
org.apache.logging.log4j.spi.AbstractLogger.tryLogMessage(AbstractLogger.java:2170)
        at 
org.apache.logging.log4j.spi.AbstractLogger.logMessageTrackRecursion(AbstractLogger.java:2125)
        at 
org.apache.logging.log4j.spi.AbstractLogger.logMessageSafely(AbstractLogger.java:2108)
        at 
org.apache.logging.log4j.spi.AbstractLogger.logMessage(AbstractLogger.java:2002)
        at 
org.apache.logging.log4j.spi.AbstractLogger.logIfEnabled(AbstractLogger.java:1974)
        at org.apache.logging.slf4j.Log4jLogger.error(Log4jLogger.java:319)
        at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:142)
        at java.lang.Thread.run(Thread.java:748)
        at __randomizedtesting.SeedInfo.seed([53296A6FBD206F98]:0)


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

Error Message:
There are still zombie threads that couldn't be terminated:    1) 
Thread[id=24758, 
name=OverseerAutoScalingTriggerThread-72125870161657858-127.0.0.1:8983_solr-n_0000000001,
 state=RUNNABLE, group=Overseer autoscaling triggers]         at 
sun.reflect.Reflection.getCallerClass(Native Method)         at 
sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)         at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
         at java.lang.reflect.Method.invoke(Method.java:498)         at 
org.apache.logging.log4j.util.StackLocator.getCallerClass(StackLocator.java:110)
         at 
org.apache.logging.log4j.util.StackLocator.getCurrentStackTrace(StackLocator.java:169)
         at 
org.apache.logging.log4j.util.StackLocatorUtil.getCurrentStackTrace(StackLocatorUtil.java:67)
         at 
org.apache.logging.log4j.core.impl.ThrowableProxy.<init>(ThrowableProxy.java:137)
         at 
org.apache.logging.log4j.core.impl.ThrowableProxy.<init>(ThrowableProxy.java:122)
         at 
org.apache.logging.log4j.core.impl.Log4jLogEvent.getThrownProxy(Log4jLogEvent.java:605)
         at 
org.apache.logging.log4j.core.pattern.ExtendedThrowablePatternConverter.format(ExtendedThrowablePatternConverter.java:64)
         at 
org.apache.logging.log4j.core.pattern.PatternFormatter.format(PatternFormatter.java:38)
         at 
org.apache.logging.log4j.core.layout.PatternLayout$PatternSerializer.toSerializable(PatternLayout.java:334)
         at 
org.apache.logging.log4j.core.layout.PatternLayout.toText(PatternLayout.java:233)
         at 
org.apache.logging.log4j.core.layout.PatternLayout.encode(PatternLayout.java:218)
         at 
org.apache.logging.log4j.core.layout.PatternLayout.encode(PatternLayout.java:58)
         at 
org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.directEncodeEvent(AbstractOutputStreamAppender.java:177)
         at 
org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.tryAppend(AbstractOutputStreamAppender.java:170)
         at 
org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.append(AbstractOutputStreamAppender.java:161)
         at 
org.apache.logging.log4j.core.config.AppenderControl.tryCallAppender(AppenderControl.java:156)
         at 
org.apache.logging.log4j.core.config.AppenderControl.callAppender0(AppenderControl.java:129)
         at 
org.apache.logging.log4j.core.config.AppenderControl.callAppenderPreventRecursion(AppenderControl.java:120)
         at 
org.apache.logging.log4j.core.config.AppenderControl.callAppender(AppenderControl.java:84)
         at 
org.apache.logging.log4j.core.config.LoggerConfig.callAppenders(LoggerConfig.java:448)
         at 
org.apache.logging.log4j.core.config.LoggerConfig.processLogEvent(LoggerConfig.java:433)
         at 
org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:417)    
     at 
org.apache.logging.log4j.core.config.LoggerConfig.logParent(LoggerConfig.java:439)
         at 
org.apache.logging.log4j.core.config.LoggerConfig.processLogEvent(LoggerConfig.java:434)
         at 
org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:417)    
     at 
org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:403)    
     at 
org.apache.logging.log4j.core.config.DefaultReliabilityStrategy.log(DefaultReliabilityStrategy.java:49)
         at org.apache.logging.log4j.core.Logger.logMessage(Logger.java:146)    
     at 
org.apache.logging.log4j.spi.AbstractLogger.tryLogMessage(AbstractLogger.java:2170)
         at 
org.apache.logging.log4j.spi.AbstractLogger.logMessageTrackRecursion(AbstractLogger.java:2125)
         at 
org.apache.logging.log4j.spi.AbstractLogger.logMessageSafely(AbstractLogger.java:2108)
         at 
org.apache.logging.log4j.spi.AbstractLogger.logMessage(AbstractLogger.java:2002)
         at 
org.apache.logging.log4j.spi.AbstractLogger.logIfEnabled(AbstractLogger.java:1974)
         at org.apache.logging.slf4j.Log4jLogger.error(Log4jLogger.java:319)    
     at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:142)
         at java.lang.Thread.run(Thread.java:748)

Stack Trace:
com.carrotsearch.randomizedtesting.ThreadLeakError: There are still zombie 
threads that couldn't be terminated:
   1) Thread[id=24758, 
name=OverseerAutoScalingTriggerThread-72125870161657858-127.0.0.1:8983_solr-n_0000000001,
 state=RUNNABLE, group=Overseer autoscaling triggers]
        at sun.reflect.Reflection.getCallerClass(Native Method)
        at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at 
org.apache.logging.log4j.util.StackLocator.getCallerClass(StackLocator.java:110)
        at 
org.apache.logging.log4j.util.StackLocator.getCurrentStackTrace(StackLocator.java:169)
        at 
org.apache.logging.log4j.util.StackLocatorUtil.getCurrentStackTrace(StackLocatorUtil.java:67)
        at 
org.apache.logging.log4j.core.impl.ThrowableProxy.<init>(ThrowableProxy.java:137)
        at 
org.apache.logging.log4j.core.impl.ThrowableProxy.<init>(ThrowableProxy.java:122)
        at 
org.apache.logging.log4j.core.impl.Log4jLogEvent.getThrownProxy(Log4jLogEvent.java:605)
        at 
org.apache.logging.log4j.core.pattern.ExtendedThrowablePatternConverter.format(ExtendedThrowablePatternConverter.java:64)
        at 
org.apache.logging.log4j.core.pattern.PatternFormatter.format(PatternFormatter.java:38)
        at 
org.apache.logging.log4j.core.layout.PatternLayout$PatternSerializer.toSerializable(PatternLayout.java:334)
        at 
org.apache.logging.log4j.core.layout.PatternLayout.toText(PatternLayout.java:233)
        at 
org.apache.logging.log4j.core.layout.PatternLayout.encode(PatternLayout.java:218)
        at 
org.apache.logging.log4j.core.layout.PatternLayout.encode(PatternLayout.java:58)
        at 
org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.directEncodeEvent(AbstractOutputStreamAppender.java:177)
        at 
org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.tryAppend(AbstractOutputStreamAppender.java:170)
        at 
org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.append(AbstractOutputStreamAppender.java:161)
        at 
org.apache.logging.log4j.core.config.AppenderControl.tryCallAppender(AppenderControl.java:156)
        at 
org.apache.logging.log4j.core.config.AppenderControl.callAppender0(AppenderControl.java:129)
        at 
org.apache.logging.log4j.core.config.AppenderControl.callAppenderPreventRecursion(AppenderControl.java:120)
        at 
org.apache.logging.log4j.core.config.AppenderControl.callAppender(AppenderControl.java:84)
        at 
org.apache.logging.log4j.core.config.LoggerConfig.callAppenders(LoggerConfig.java:448)
        at 
org.apache.logging.log4j.core.config.LoggerConfig.processLogEvent(LoggerConfig.java:433)
        at 
org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:417)
        at 
org.apache.logging.log4j.core.config.LoggerConfig.logParent(LoggerConfig.java:439)
        at 
org.apache.logging.log4j.core.config.LoggerConfig.processLogEvent(LoggerConfig.java:434)
        at 
org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:417)
        at 
org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:403)
        at 
org.apache.logging.log4j.core.config.DefaultReliabilityStrategy.log(DefaultReliabilityStrategy.java:49)
        at org.apache.logging.log4j.core.Logger.logMessage(Logger.java:146)
        at 
org.apache.logging.log4j.spi.AbstractLogger.tryLogMessage(AbstractLogger.java:2170)
        at 
org.apache.logging.log4j.spi.AbstractLogger.logMessageTrackRecursion(AbstractLogger.java:2125)
        at 
org.apache.logging.log4j.spi.AbstractLogger.logMessageSafely(AbstractLogger.java:2108)
        at 
org.apache.logging.log4j.spi.AbstractLogger.logMessage(AbstractLogger.java:2002)
        at 
org.apache.logging.log4j.spi.AbstractLogger.logIfEnabled(AbstractLogger.java:1974)
        at org.apache.logging.slf4j.Log4jLogger.error(Log4jLogger.java:319)
        at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:142)
        at java.lang.Thread.run(Thread.java:748)
        at __randomizedtesting.SeedInfo.seed([53296A6FBD206F98]:0)




Build Log:
[...truncated 1788 lines...]
   [junit4] JVM J1: stdout was not empty, see: 
/export/home/jenkins/workspace/Lucene-Solr-7.x-Solaris/lucene/build/core/test/temp/junit4-J1-20180326_104610_9604594167064104401110.sysout
   [junit4] >>> JVM J1 emitted unexpected output (verbatim) ----
   [junit4] codec: CheapBastard, pf: FST50, dvf: Memory
   [junit4] <<< JVM J1: EOF ----

[...truncated 11725 lines...]
   [junit4] Suite: org.apache.solr.cloud.ZkControllerTest
   [junit4]   2> Creating dataDir: 
/export/home/jenkins/workspace/Lucene-Solr-7.x-Solaris/solr/build/solr-core/test/J0/temp/solr.cloud.ZkControllerTest_53296A6FBD206F98-001/init-core-data-001
   [junit4]   2> 2089361 INFO  
(SUITE-ZkControllerTest-seed#[53296A6FBD206F98]-worker) [    ] 
o.a.s.SolrTestCaseJ4 Using PointFields (NUMERIC_POINTS_SYSPROP=true) 
w/NUMERIC_DOCVALUES_SYSPROP=true
   [junit4]   2> 2089363 INFO  
(SUITE-ZkControllerTest-seed#[53296A6FBD206F98]-worker) [    ] 
o.a.s.SolrTestCaseJ4 Randomized ssl (false) and clientAuth (false) via: 
@org.apache.solr.SolrTestCaseJ4$SuppressSSL(bugUrl=None)
   [junit4]   2> 2089364 INFO  
(SUITE-ZkControllerTest-seed#[53296A6FBD206F98]-worker) [    ] 
o.a.s.SolrTestCaseJ4 SecureRandom sanity checks: 
test.solr.allowed.securerandom=null & java.security.egd=file:/dev/./urandom
   [junit4] IGNOR/A 0.00s J0 | ZkControllerTest.testPublishAndWaitForDownStates
   [junit4]    > Assumption #1: 'awaitsfix' test group is disabled 
(@AwaitsFix(bugUrl=https://issues.apache.org/jira/browse/SOLR-12028, 
https://issues.apache.org/jira/browse/SOLR-7736))
   [junit4]   2> 2089389 INFO  
(TEST-ZkControllerTest.testGetHostName-seed#[53296A6FBD206F98]) [    ] 
o.a.s.SolrTestCaseJ4 ###Starting testGetHostName
   [junit4]   2> 2089389 INFO  
(TEST-ZkControllerTest.testGetHostName-seed#[53296A6FBD206F98]) [    ] 
o.a.s.c.ZkTestServer STARTING ZK TEST SERVER
   [junit4]   2> 2089390 INFO  (Thread-6313) [    ] o.a.s.c.ZkTestServer client 
port:0.0.0.0/0.0.0.0:0
   [junit4]   2> 2089390 INFO  (Thread-6313) [    ] o.a.s.c.ZkTestServer 
Starting server
   [junit4]   2> 2089400 ERROR (Thread-6313) [    ] o.a.z.s.ZooKeeperServer 
ZKShutdownHandler is not registered, so ZooKeeper server won't take any action 
on ERROR or SHUTDOWN server state changes
   [junit4]   2> 2089490 INFO  
(TEST-ZkControllerTest.testGetHostName-seed#[53296A6FBD206F98]) [    ] 
o.a.s.c.ZkTestServer start zk server on port:47369
   [junit4]   2> 2089505 INFO  (zkConnectionManagerCallback-5878-thread-1) [    
] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 2089511 INFO  (zkConnectionManagerCallback-5880-thread-1) [    
] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 2089526 INFO  
(TEST-ZkControllerTest.testGetHostName-seed#[53296A6FBD206F98]) [    ] 
o.a.s.c.SolrXmlConfig MBean server found: 
com.sun.jmx.mbeanserver.JmxMBeanServer@158aee62, but no JMX reporters were 
configured - adding default JMX reporter.
   [junit4]   2> 2089537 INFO  (zkConnectionManagerCallback-5884-thread-1) [    
] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 2090101 INFO  
(TEST-ZkControllerTest.testGetHostName-seed#[53296A6FBD206F98]) 
[n:127.0.0.1:8983_solr    ] o.a.s.c.Overseer Overseer (id=null) closing
   [junit4]   2> 2090102 INFO  
(TEST-ZkControllerTest.testGetHostName-seed#[53296A6FBD206F98]) 
[n:127.0.0.1:8983_solr    ] o.a.s.c.OverseerElectionContext I am going to be 
the leader 127.0.0.1:8983_solr
   [junit4]   2> 2090104 INFO  
(TEST-ZkControllerTest.testGetHostName-seed#[53296A6FBD206F98]) 
[n:127.0.0.1:8983_solr    ] o.a.s.c.Overseer Overseer 
(id=72125870161657858-127.0.0.1:8983_solr-n_0000000000) starting
   [junit4]   2> 2090196 INFO  (zkConnectionManagerCallback-5889-thread-1) [    
] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 2090264 INFO  
(TEST-ZkControllerTest.testGetHostName-seed#[53296A6FBD206F98]) 
[n:127.0.0.1:8983_solr    ] o.a.s.c.s.i.ZkClientClusterStateProvider Cluster at 
127.0.0.1:47369/solr ready
   [junit4]   2> 2090322 INFO  
(TEST-ZkControllerTest.testGetHostName-seed#[53296A6FBD206F98]) 
[n:127.0.0.1:8983_solr    ] o.a.s.c.ZkController Register node as live in 
ZooKeeper:/live_nodes/127.0.0.1:8983_solr
   [junit4]   2> 2090333 INFO  
(TEST-ZkControllerTest.testGetHostName-seed#[53296A6FBD206F98]) 
[n:127.0.0.1:8983_solr    ] o.a.s.c.Overseer Overseer 
(id=72125870161657858-127.0.0.1:8983_solr-n_0000000000) closing
   [junit4]   2> 2090334 INFO  
(OverseerStateUpdate-72125870161657858-127.0.0.1:8983_solr-n_0000000000) [    ] 
o.a.s.c.Overseer According to ZK I 
(id=72125870161657858-127.0.0.1:8983_solr-n_0000000000) am no longer a leader.
   [junit4]   2> 2090334 INFO  
(OverseerStateUpdate-72125870161657858-127.0.0.1:8983_solr-n_0000000000) [    ] 
o.a.s.c.Overseer Overseer Loop exiting : 127.0.0.1:8983_solr
   [junit4]   2> 2090334 ERROR 
(OverseerCollectionConfigSetProcessor-72125870161657858-127.0.0.1:8983_solr-n_0000000000)
 [    ] o.a.s.c.OverseerTaskProcessor Unable to prioritize overseer 
   [junit4]   2> java.lang.InterruptedException: null
   [junit4]   2>        at java.lang.Object.wait(Native Method) ~[?:1.8.0_162]
   [junit4]   2>        at java.lang.Object.wait(Object.java:502) ~[?:1.8.0_162]
   [junit4]   2>        at 
org.apache.zookeeper.ClientCnxn.submitRequest(ClientCnxn.java:1409) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:1100) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$exists$3(SolrZkClient.java:316)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.exists(SolrZkClient.java:316) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.cloud.OverseerNodePrioritizer.prioritizeOverseerNodes(OverseerNodePrioritizer.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.cloud.OverseerTaskProcessor.run(OverseerTaskProcessor.java:178) 
[java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_162]
   [junit4]   2> 2090374 WARN  (OverseerExitThread) [    ] o.a.s.c.Overseer I'm 
exiting, but I'm still the leader
   [junit4]   2> 2090377 INFO  (zkCallback-5888-thread-1) [    ] 
o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 2090392 INFO  (zkCallback-5883-thread-1) [    ] 
o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 2090434 WARN  (ScheduledTrigger-8534-thread-3) [    ] 
o.a.s.c.a.TriggerEventQueue Exception peeking queue of trigger 
.auto_add_replicas
   [junit4]   2> java.lang.InterruptedException: null
   [junit4]   2>        at 
java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireInterruptibly(AbstractQueuedSynchronizer.java:1220)
 ~[?:1.8.0_162]
   [junit4]   2>        at 
java.util.concurrent.locks.ReentrantLock.lockInterruptibly(ReentrantLock.java:335)
 ~[?:1.8.0_162]
   [junit4]   2>        at 
org.apache.solr.cloud.ZkDistributedQueue.firstChild(ZkDistributedQueue.java:373)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.cloud.ZkDistributedQueue.firstElement(ZkDistributedQueue.java:504)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.cloud.ZkDistributedQueue.peek(ZkDistributedQueue.java:145) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.TriggerEventQueue.peekEvent(TriggerEventQueue.java:69)
 [java/:?]
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.ScheduledTriggers$TriggerWrapper.run(ScheduledTriggers.java:558)
 [java/:?]
   [junit4]   2>        at 
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) 
[?:1.8.0_162]
   [junit4]   2>        at 
java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308) [?:1.8.0_162]
   [junit4]   2>        at 
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
 [?:1.8.0_162]
   [junit4]   2>        at 
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
 [?:1.8.0_162]
   [junit4]   2>        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) 
[?:1.8.0_162]
   [junit4]   2>        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) 
[?:1.8.0_162]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_162]
   [junit4]   2> 2090434 WARN  
(OverseerAutoScalingTriggerThread-72125870161657858-127.0.0.1:8983_solr-n_0000000000)
 [    ] o.a.s.c.a.OverseerTriggerThread Error removing old nodeAdded markers
   [junit4]   2> java.lang.InterruptedException: null
   [junit4]   2>        at java.lang.Object.wait(Native Method) ~[?:1.8.0_162]
   [junit4]   2>        at java.lang.Object.wait(Object.java:502) ~[?:1.8.0_162]
   [junit4]   2>        at 
org.apache.zookeeper.ClientCnxn.submitRequest(ClientCnxn.java:1409) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getChildren(ZooKeeper.java:1533) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getChildren$4(SolrZkClient.java:328)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getChildren(SolrZkClient.java:328) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.listData(ZkDistribStateManager.java:67)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.listData(ZkDistribStateManager.java:77)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:256)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_162]
   [junit4]   2> 2090435 WARN  
(OverseerAutoScalingTriggerThread-72125870161657858-127.0.0.1:8983_solr-n_0000000000)
 [    ] o.a.s.c.a.OverseerTriggerThread OverseerTriggerThread has been closed, 
exiting.
   [junit4]   2> 2090435 WARN  (ScheduledTrigger-8534-thread-3) [    ] 
o.a.s.c.a.TriggerBase Exception getting trigger state 
'/autoscaling/triggerState/.auto_add_replicas'
   [junit4]   2> java.lang.InterruptedException: null
   [junit4]   2>        at java.lang.Object.wait(Native Method) ~[?:1.8.0_162]
   [junit4]   2>        at java.lang.Object.wait(Object.java:502) ~[?:1.8.0_162]
   [junit4]   2>        at 
org.apache.zookeeper.ClientCnxn.submitRequest(ClientCnxn.java:1409) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:1100) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$exists$3(SolrZkClient.java:316)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.exists(SolrZkClient.java:316) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.hasData(ZkDistribStateManager.java:58)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.TriggerBase.restoreState(TriggerBase.java:221)
 [java/:?]
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.ScheduledTriggers$TriggerWrapper.run(ScheduledTriggers.java:568)
 [java/:?]
   [junit4]   2>        at 
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) 
[?:1.8.0_162]
   [junit4]   2>        at 
java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308) [?:1.8.0_162]
   [junit4]   2>        at 
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
 [?:1.8.0_162]
   [junit4]   2>        at 
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
 [?:1.8.0_162]
   [junit4]   2>        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) 
[?:1.8.0_162]
   [junit4]   2>        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) 
[?:1.8.0_162]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_162]
   [junit4]   2> 2090450 WARN  (ScheduledTrigger-8534-thread-3) [    ] 
o.a.s.c.a.NodeLostTrigger NodeLostTrigger ran but was already closed
   [junit4]   2> 2090452 INFO  (OverseerExitThread) [    ] 
o.a.s.c.OverseerElectionContext I am going to be the leader 127.0.0.1:8983_solr
   [junit4]   2> 2090454 WARN  (NIOServerCxn.Factory:0.0.0.0/0.0.0.0:0) [    ] 
o.a.z.s.NIOServerCnxn Unable to read additional data from client sessionid 
0x1003e18c61a0003, likely client has closed socket
   [junit4]   2> 2090455 INFO  (OverseerExitThread) [    ] o.a.s.c.Overseer 
Overseer (id=72125870161657858-127.0.0.1:8983_solr-n_0000000001) starting
   [junit4]   2> 2090461 ERROR 
(OverseerAutoScalingTriggerThread-72125870161657858-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.cloud.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:83)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:127)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_162]
   [junit4]   2> Caused by: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:130) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:54) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 2090462 ERROR 
(OverseerAutoScalingTriggerThread-72125870161657858-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.cloud.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:83)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:127)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_162]
   [junit4]   2> Caused by: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:130) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:54) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 2090462 ERROR 
(OverseerAutoScalingTriggerThread-72125870161657858-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.cloud.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:83)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:127)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_162]
   [junit4]   2> Caused by: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:130) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:54) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 2090462 ERROR 
(OverseerAutoScalingTriggerThread-72125870161657858-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.cloud.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:83)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:127)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_162]
   [junit4]   2> Caused by: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:130) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:54) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 2090463 ERROR 
(OverseerAutoScalingTriggerThread-72125870161657858-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.cloud.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:83)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:127)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_162]
   [junit4]   2> Caused by: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:130) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:54) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 2090463 ERROR 
(OverseerAutoScalingTriggerThread-72125870161657858-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.cloud.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:83)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:127)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_162]
   [junit4]   2> Caused by: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:130) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:54) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 2090464 WARN  (NIOServerCxn.Factory:0.0.0.0/0.0.0.0:0) [    ] 
o.a.z.s.NIOServerCnxn Unable to read additional data from client sessionid 
0x1003e18c61a0002, likely client has closed socket
   [junit4]   2> 2090465 INFO  
(TEST-ZkControllerTest.testGetHostName-seed#[53296A6FBD206F98]) 
[n:127.0.0.1:8983_solr    ] o.a.s.c.CoreContainer Shutting down CoreContainer 
instance=53309663
   [junit4]   2> 2090465 ERROR 
(TEST-ZkControllerTest.testGetHostName-seed#[53296A6FBD206F98]) 
[n:127.0.0.1:8983_solr    ] o.a.s.c.SolrCores No transient handler has been 
defined. Check solr.xml to see if an attempt to provide a custom 
TransientSolrCoreCacheFactory was done incorrectly since the default should 
have been used otherwise.
   [junit4]   2> 2090465 ERROR 
(TEST-ZkControllerTest.testGetHostName-seed#[53296A6FBD206F98]) 
[n:127.0.0.1:8983_solr    ] o.a.z.s.ZooKeeperServer ZKShutdownHandler is not 
registered, so ZooKeeper server won't take any action on ERROR or SHUTDOWN 
server state changes
   [junit4]   2> 2090463 ERROR 
(OverseerAutoScalingTriggerThread-72125870161657858-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.cloud.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:83)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:127)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_162]
   [junit4]   2> Caused by: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:130) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:54) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 2090488 ERROR 
(OverseerAutoScalingTriggerThread-72125870161657858-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.cloud.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:83)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:127)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_162]
   [junit4]   2> Caused by: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:130) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:54) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 2090489 INFO  
(TEST-ZkControllerTest.testGetHostName-seed#[53296A6FBD206F98]) 
[n:127.0.0.1:8983_solr    ] o.a.s.c.ZkTestServer connecting to 127.0.0.1:47369 
47369
   [junit4]   2> 2090489 ERROR 
(OverseerAutoScalingTriggerThread-72125870161657858-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.cloud.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:83)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:127)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_162]
   [junit4]   2> Caused by: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:130) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:54) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 2091401 ERROR 
(OverseerAutoScalingTriggerThread-72125870161657858-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.cloud.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:83)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:127)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_162]
   [junit4]   2> Caused by: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:130) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:54) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 2091413 ERROR 
(OverseerAutoScalingTriggerThread-72125870161657858-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.cloud.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:83)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:127)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_162]
   [junit4]   2> Caused by: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:130) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:54) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 2091414 ERROR 
(OverseerAutoScalingTriggerThread-72125870161657858-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.cloud.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:83)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:127)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_162]
   [junit4]   2> Caused by: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:130) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:54) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 2091414 ERROR 
(OverseerAutoScalingTriggerThread-72125870161657858-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.cloud.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:83)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:127)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_162]
   [junit4]   2> Caused by: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:130) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:54) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 2091414 ERROR 
(OverseerAutoScalingTriggerThread-72125870161657858-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.cloud.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:83)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:127)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_162]
   [junit4]   2> Caused by: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:130) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:54) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 2091415 ERROR 
(OverseerAutoScalingTriggerThread-72125870161657858-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.cloud.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:83)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:127)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_162]
   [junit4]   2> Caused by: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:130) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:54) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 2091415 ERROR 
(OverseerAutoScalingTriggerThread-72125870161657858-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.cloud.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:83)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:127)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_162]
   [junit4]   2> Caused by: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:130) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:54) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 2091419 INFO  (Thread-6313) [    ] o.a.s.c.ZkTestServer 
connecting to 127.0.0.1:47369 47369
   [junit4]   2> 2091422 WARN  (Thread-6313) [    ] o.a.s.c.ZkTestServer Watch 
limit violations: 
   [junit4]   2> Maximum concurrent create/delete watches above limit:
   [junit4]   2> 
   [junit4]   2>        2       /solr/aliases.json
   [junit4]   2>        2       /solr/clusterprops.json
   [junit4]   2> 
   [junit4]   2> Maximum concurrent data watches above limit:
   [junit4]   2> 
   [junit4]   2>        2       /solr/clusterstate.json
   [junit4]   2> 
   [junit4]   2> Maximum concurrent children watches above limit:
   [junit4]   2> 
   [junit4]   2>        2       /solr/live_nodes
   [junit4]   2>        2       /solr/collections
   [junit4]   2> 
   [junit4]   2> 2091419 ERROR 
(OverseerAutoScalingTriggerThread-72125870161657858-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.cloud.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:83)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:127)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_162]
   [junit4]   2> Caused by: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:130) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:54) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 2091423 ERROR 
(OverseerAutoScalingTriggerThread-72125870161657858-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.cloud.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:83)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:127)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_162]
   [junit4]   2> Caused by: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:130) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:54) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 2091423 ERROR 
(OverseerAutoScalingTriggerThread-72125870161657858-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.cloud.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:83)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:127)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_162]
   [junit4]   2> Caused by: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:130) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:54) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 2091423 ERROR 
(OverseerAutoScalingTriggerThread-72125870161657858-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.cloud.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:83)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:127)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_162]
   [junit4]   2> Caused by: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:130) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:54) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 2091424 ERROR 
(OverseerAutoScalingTriggerThread-72125870161657858-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.cloud.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:83)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:127)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_162]
   [junit4]   2> Caused by: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:130) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:54) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 2091424 ERROR 
(OverseerAutoScalingTriggerThread-72125870161657858-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.cloud.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:83)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:127)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_162]
   [junit4]   2> Caused by: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:130) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:54) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 2091424 ERROR 
(OverseerAutoScalingTriggerThread-72125870161657858-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.cloud.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:83)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:127)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_162]
   [junit4]   2> Caused by: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:130) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:54) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 2091424 ERROR 
(OverseerAutoScalingTriggerThread-72125870161657858-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.cloud.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:83)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:127)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_162]
   [junit4]   2> Caused by: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:130) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:54) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 2091425 ERROR 
(OverseerAutoScalingTriggerThread-72125870161657858-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.cloud.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:83)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:127)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_162]
   [junit4]   2> Caused by: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:130) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:54) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 2091425 ERROR 
(OverseerAutoScalingTriggerThread-72125870161657858-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.cloud.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:83)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:127)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_162]
   [junit4]   2> Caused by: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:130) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:54) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 2091425 ERROR 
(OverseerAutoScalingTriggerThread-72125870161657858-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.cloud.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:83)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:127)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_162]
   [junit4]   2> Caused by: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:130) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:54) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 2091426 ERROR 
(OverseerAutoScalingTriggerThread-72125870161657858-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:183)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.cloud.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:83)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:127)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_162]
   [junit4]   2> Caused by: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:130) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:54) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1215) 
~[zookeeper-3.4.11.jar:3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at org.apache.solr.common.cloud.ZkCmdExecutor.retry

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

Info.seed([53296A6FBD206F98]:0)
   [junit4]    >        at 
org.apache.solr.SolrTestCaseJ4.teardownTestCases(SolrTestCaseJ4.java:302)
   [junit4]    >        at java.lang.Thread.run(Thread.java:748)Throwable #2: 
com.carrotsearch.randomizedtesting.ThreadLeakError: 1 thread leaked from SUITE 
scope at org.apache.solr.cloud.ZkControllerTest: 
   [junit4]    >    1) Thread[id=24758, 
name=OverseerAutoScalingTriggerThread-72125870161657858-127.0.0.1:8983_solr-n_0000000001,
 state=RUNNABLE, group=Overseer autoscaling triggers]
   [junit4]    >         at 
java.net.URLStreamHandler.toExternalForm(URLStreamHandler.java:503)
   [junit4]    >         at java.net.URL.toExternalForm(URL.java:929)
   [junit4]    >         at java.net.URL.toString(URL.java:915)
   [junit4]    >         at 
org.apache.logging.log4j.core.impl.ThrowableProxy.toCacheEntry(ThrowableProxy.java:658)
   [junit4]    >         at 
org.apache.logging.log4j.core.impl.ThrowableProxy.toExtendedStackTrace(ThrowableProxy.java:738)
   [junit4]    >         at 
org.apache.logging.log4j.core.impl.ThrowableProxy.<init>(ThrowableProxy.java:164)
   [junit4]    >         at 
org.apache.logging.log4j.core.impl.ThrowableProxy.<init>(ThrowableProxy.java:141)
   [junit4]    >         at 
org.apache.logging.log4j.core.impl.ThrowableProxy.<init>(ThrowableProxy.java:122)
   [junit4]    >         at 
org.apache.logging.log4j.core.impl.Log4jLogEvent.getThrownProxy(Log4jLogEvent.java:605)
   [junit4]    >         at 
org.apache.logging.log4j.core.pattern.ExtendedThrowablePatternConverter.format(ExtendedThrowablePatternConverter.java:64)
   [junit4]    >         at 
org.apache.logging.log4j.core.pattern.PatternFormatter.format(PatternFormatter.java:38)
   [junit4]    >         at 
org.apache.logging.log4j.core.layout.PatternLayout$PatternSerializer.toSerializable(PatternLayout.java:334)
   [junit4]    >         at 
org.apache.logging.log4j.core.layout.PatternLayout.toText(PatternLayout.java:233)
   [junit4]    >         at 
org.apache.logging.log4j.core.layout.PatternLayout.encode(PatternLayout.java:218)
   [junit4]    >         at 
org.apache.logging.log4j.core.layout.PatternLayout.encode(PatternLayout.java:58)
   [junit4]    >         at 
org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.directEncodeEvent(AbstractOutputStreamAppender.java:177)
   [junit4]    >         at 
org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.tryAppend(AbstractOutputStreamAppender.java:170)
   [junit4]    >         at 
org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.append(AbstractOutputStreamAppender.java:161)
   [junit4]    >         at 
org.apache.logging.log4j.core.config.AppenderControl.tryCallAppender(AppenderControl.java:156)
   [junit4]    >         at 
org.apache.logging.log4j.core.config.AppenderControl.callAppender0(AppenderControl.java:129)
   [junit4]    >         at 
org.apache.logging.log4j.core.config.AppenderControl.callAppenderPreventRecursion(AppenderControl.java:120)
   [junit4]    >         at 
org.apache.logging.log4j.core.config.AppenderControl.callAppender(AppenderControl.java:84)
   [junit4]    >         at 
org.apache.logging.log4j.core.config.LoggerConfig.callAppenders(LoggerConfig.java:448)
   [junit4]    >         at 
org.apache.logging.log4j.core.config.LoggerConfig.processLogEvent(LoggerConfig.java:433)
   [junit4]    >         at 
org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:417)
   [junit4]    >         at 
org.apache.logging.log4j.core.config.LoggerConfig.logParent(LoggerConfig.java:439)
   [junit4]    >         at 
org.apache.logging.log4j.core.config.LoggerConfig.processLogEvent(LoggerConfig.java:434)
   [junit4]    >         at 
org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:417)
   [junit4]    >         at 
org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:403)
   [junit4]    >         at 
org.apache.logging.log4j.core.config.DefaultReliabilityStrategy.log(DefaultReliabilityStrategy.java:49)
   [junit4]    >         at 
org.apache.logging.log4j.core.Logger.logMessage(Logger.java:146)
   [junit4]    >         at 
org.apache.logging.log4j.spi.AbstractLogger.tryLogMessage(AbstractLogger.java:2170)
   [junit4]    >         at 
org.apache.logging.log4j.spi.AbstractLogger.logMessageTrackRecursion(AbstractLogger.java:2125)
   [junit4]    >         at 
org.apache.logging.log4j.spi.AbstractLogger.logMessageSafely(AbstractLogger.java:2108)
   [junit4]    >         at 
org.apache.logging.log4j.spi.AbstractLogger.logMessage(AbstractLogger.java:2002)
   [junit4]    >         at 
org.apache.logging.log4j.spi.AbstractLogger.logIfEnabled(AbstractLogger.java:1974)
   [junit4]    >         at 
org.apache.logging.slf4j.Log4jLogger.error(Log4jLogger.java:319)
   [junit4]    >         at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:142)
   [junit4]    >         at java.lang.Thread.run(Thread.java:748)
   [junit4]    >        at 
__randomizedtesting.SeedInfo.seed([53296A6FBD206F98]:0)Throwable #3: 
com.carrotsearch.randomizedtesting.ThreadLeakError: There are still zombie 
threads that couldn't be terminated:
   [junit4]    >    1) Thread[id=24758, 
name=OverseerAutoScalingTriggerThread-72125870161657858-127.0.0.1:8983_solr-n_0000000001,
 state=RUNNABLE, group=Overseer autoscaling triggers]
   [junit4]    >         at 
org.apache.logging.log4j.util.StackLocator.getCallerClass(StackLocator.java:110)
   [junit4]    >         at 
org.apache.logging.log4j.util.StackLocator.getCurrentStackTrace(StackLocator.java:169)
   [junit4]    >         at 
org.apache.logging.log4j.util.StackLocatorUtil.getCurrentStackTrace(StackLocatorUtil.java:67)
   [junit4]    >         at 
org.apache.logging.log4j.core.impl.ThrowableProxy.<init>(ThrowableProxy.java:137)
   [junit4]    >         at 
org.apache.logging.log4j.core.impl.ThrowableProxy.<init>(ThrowableProxy.java:122)
   [junit4]    >         at 
org.apache.logging.log4j.core.impl.Log4jLogEvent.getThrownProxy(Log4jLogEvent.java:605)
   [junit4]    >         at 
org.apache.logging.log4j.core.pattern.ExtendedThrowablePatternConverter.format(ExtendedThrowablePatternConverter.java:64)
   [junit4]    >         at 
org.apache.logging.log4j.core.pattern.PatternFormatter.format(PatternFormatter.java:38)
   [junit4]    >         at 
org.apache.logging.log4j.core.layout.PatternLayout$PatternSerializer.toSerializable(PatternLayout.java:334)
   [junit4]    >         at 
org.apache.logging.log4j.core.layout.PatternLayout.toText(PatternLayout.java:233)
   [junit4]    >         at 
org.apache.logging.log4j.core.layout.PatternLayout.encode(PatternLayout.java:218)
   [junit4]    >         at 
org.apache.logging.log4j.core.layout.PatternLayout.encode(PatternLayout.java:58)
   [junit4]    >         at 
org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.directEncodeEvent(AbstractOutputStreamAppender.java:177)
   [junit4]    >         at 
org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.tryAppend(AbstractOutputStreamAppender.java:170)
   [junit4]    >         at 
org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.append(AbstractOutputStreamAppender.java:161)
   [junit4]    >         at 
org.apache.logging.log4j.core.config.AppenderControl.tryCallAppender(AppenderControl.java:156)
   [junit4]    >         at 
org.apache.logging.log4j.core.config.AppenderControl.callAppender0(AppenderControl.java:129)
   [junit4]    >         at 
org.apache.logging.log4j.core.config.AppenderControl.callAppenderPreventRecursion(AppenderControl.java:120)
   [junit4]    >         at 
org.apache.logging.log4j.core.config.AppenderControl.callAppender(AppenderControl.java:84)
   [junit4]    >         at 
org.apache.logging.log4j.core.config.LoggerConfig.callAppenders(LoggerConfig.java:448)
   [junit4]    >         at 
org.apache.logging.log4j.core.config.LoggerConfig.processLogEvent(LoggerConfig.java:433)
   [junit4]    >         at 
org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:417)
   [junit4]    >         at 
org.apache.logging.log4j.core.config.LoggerConfig.logParent(LoggerConfig.java:439)
   [junit4]    >         at 
org.apache.logging.log4j.core.config.LoggerConfig.processLogEvent(LoggerConfig.java:434)
   [junit4]    >         at 
org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:417)
   [junit4]    >         at 
org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:403)
   [junit4]    >         at 
org.apache.logging.log4j.core.config.DefaultReliabilityStrategy.log(DefaultReliabilityStrategy.java:49)
   [junit4]    >         at 
org.apache.logging.log4j.core.Logger.logMessage(Logger.java:146)
   [junit4]    >         at 
org.apache.logging.log4j.spi.AbstractLogger.tryLogMessage(AbstractLogger.java:2170)
   [junit4]    >         at 
org.apache.logging.log4j.spi.AbstractLogger.logMessageTrackRecursion(AbstractLogger.java:2125)
   [junit4]    >         at 
org.apache.logging.log4j.spi.AbstractLogger.logMessageSafely(AbstractLogger.java:2108)
   [junit4]    >         at 
org.apache.logging.log4j.spi.AbstractLogger.logMessage(AbstractLogger.java:2002)
   [junit4]    >         at 
org.apache.logging.log4j.spi.AbstractLogger.logIfEnabled(AbstractLogger.java:1974)
   [junit4]    >         at 
org.apache.logging.slf4j.Log4jLogger.error(Log4jLogger.java:319)
   [junit4]    >         at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:142)
   [junit4]    >         at java.lang.Thread.run(Thread.java:748)
   [junit4]    >        at 
__randomizedtesting.SeedInfo.seed([53296A6FBD206F98]:0)
   [junit4] Completed [412/785 (1!)] on J0 in 110.32s, 4 tests, 1 failure, 2 
errors, 1 skipped <<< FAILURES!

[...truncated 50838 lines...]
[repro] Jenkins log URL: 
https://jenkins.thetaphi.de/job/Lucene-Solr-7.x-Solaris/521/consoleText

[repro] Revision: 13fdd07e24a3a6f5201ad28b828b1b034608b2b7

[repro] Ant options: "-Dargs=-XX:-UseCompressedOops -XX:+UseG1GC"

[...truncated 38 lines...]

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[JENKINS] Lucene-Solr-7.x-Solaris (64bit/jdk1.8.0) - Build # 521 - Failure!

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