[JENKINS] Lucene-Solr-Tests-7.x - Build # 592 - Unstable

Apache Jenkins Server Wed, 02 May 2018 08:54:48 -0700

Build: https://builds.apache.org/job/Lucene-Solr-Tests-7.x/592/


2 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$ObjectTrackerException: 
org.apache.solr.cloud.Overseer  at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
  at org.apache.solr.cloud.Overseer.start(Overseer.java:545)  at 
org.apache.solr.cloud.OverseerElectionContext.runLeaderProcess(ElectionContext.java:851)
  at 
org.apache.solr.cloud.LeaderElector.runIamLeaderProcess(LeaderElector.java:170) 
 at 
org.apache.solr.cloud.LeaderElector.checkIfIamLeader(LeaderElector.java:135)  
at org.apache.solr.cloud.LeaderElector.joinElection(LeaderElector.java:307)  at 
org.apache.solr.cloud.LeaderElector.retryElection(LeaderElector.java:393)  at 
org.apache.solr.cloud.ZkController.rejoinOverseerElection(ZkController.java:2081)
  at 
org.apache.solr.cloud.Overseer$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$ObjectTrackerException: 
org.apache.solr.cloud.Overseer
        at 
org.apache.solr.common.util.ObjectReleaseTracker.track(ObjectReleaseTracker.java:42)
        at org.apache.solr.cloud.Overseer.start(Overseer.java:545)
        at 
org.apache.solr.cloud.OverseerElectionContext.runLeaderProcess(ElectionContext.java:851)
        at 
org.apache.solr.cloud.LeaderElector.runIamLeaderProcess(LeaderElector.java:170)
        at 
org.apache.solr.cloud.LeaderElector.checkIfIamLeader(LeaderElector.java:135)
        at 
org.apache.solr.cloud.LeaderElector.joinElection(LeaderElector.java:307)
        at 
org.apache.solr.cloud.LeaderElector.retryElection(LeaderElector.java:393)
        at 
org.apache.solr.cloud.ZkController.rejoinOverseerElection(ZkController.java:2081)
        at 
org.apache.solr.cloud.Overseer$ClusterStateUpdater.checkIfIamStillLeader(Overseer.java:331)
        at java.lang.Thread.run(Thread.java:748)


        at __randomizedtesting.SeedInfo.seed([5605FCAB21053825]: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:303)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1737)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$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=13515, 
name=OverseerAutoScalingTriggerThread-72556109066797058-127.0.0.1:8983_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.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:146)
         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=13515, 
name=OverseerAutoScalingTriggerThread-72556109066797058-127.0.0.1:8983_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.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:146)
        at java.lang.Thread.run(Thread.java:748)
        at __randomizedtesting.SeedInfo.seed([5605FCAB21053825]:0)




Build Log:
[...truncated 13862 lines...]
   [junit4] Suite: org.apache.solr.cloud.ZkControllerTest
   [junit4]   2> Creating dataDir: 
/home/jenkins/jenkins-slave/workspace/Lucene-Solr-Tests-7.x/solr/build/solr-core/test/J0/temp/solr.cloud.ZkControllerTest_5605FCAB21053825-001/init-core-data-001
   [junit4]   2> 3577569 WARN  
(SUITE-ZkControllerTest-seed#[5605FCAB21053825]-worker) [    ] 
o.a.s.SolrTestCaseJ4 startTrackingSearchers: numOpens=23 numCloses=23
   [junit4]   2> 3577569 INFO  
(SUITE-ZkControllerTest-seed#[5605FCAB21053825]-worker) [    ] 
o.a.s.SolrTestCaseJ4 Using PointFields (NUMERIC_POINTS_SYSPROP=true) 
w/NUMERIC_DOCVALUES_SYSPROP=false
   [junit4]   2> 3577571 INFO  
(SUITE-ZkControllerTest-seed#[5605FCAB21053825]-worker) [    ] 
o.a.s.SolrTestCaseJ4 Randomized ssl (false) and clientAuth (false) via: 
@org.apache.solr.SolrTestCaseJ4$SuppressSSL(bugUrl=None)
   [junit4]   2> 3577571 INFO  
(SUITE-ZkControllerTest-seed#[5605FCAB21053825]-worker) [    ] 
o.a.s.SolrTestCaseJ4 SecureRandom sanity checks: 
test.solr.allowed.securerandom=null & java.security.egd=file:/dev/./urandom
   [junit4]   2> 3577590 INFO  
(TEST-ZkControllerTest.testGetHostName-seed#[5605FCAB21053825]) [    ] 
o.a.s.SolrTestCaseJ4 ###Starting testGetHostName
   [junit4]   2> 3577590 INFO  
(TEST-ZkControllerTest.testGetHostName-seed#[5605FCAB21053825]) [    ] 
o.a.s.c.ZkTestServer STARTING ZK TEST SERVER
   [junit4]   2> 3577593 INFO  (Thread-2214) [    ] o.a.s.c.ZkTestServer client 
port:0.0.0.0/0.0.0.0:0
   [junit4]   2> 3577593 INFO  (Thread-2214) [    ] o.a.s.c.ZkTestServer 
Starting server
   [junit4]   2> 3577663 ERROR (Thread-2214) [    ] 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> 3577703 INFO  
(TEST-ZkControllerTest.testGetHostName-seed#[5605FCAB21053825]) [    ] 
o.a.s.c.ZkTestServer start zk server on port:36664
   [junit4]   2> 3577759 INFO  (zkConnectionManagerCallback-2672-thread-1) [    
] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3577762 INFO  (zkConnectionManagerCallback-2674-thread-1) [    
] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3577767 INFO  
(TEST-ZkControllerTest.testGetHostName-seed#[5605FCAB21053825]) [    ] 
o.a.s.c.SolrXmlConfig MBean server found: 
com.sun.jmx.mbeanserver.JmxMBeanServer@3a5a670, but no JMX reporters were 
configured - adding default JMX reporter.
   [junit4]   2> 3577816 INFO  (zkConnectionManagerCallback-2678-thread-1) [    
] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3578111 INFO  
(TEST-ZkControllerTest.testGetHostName-seed#[5605FCAB21053825]) 
[n:127.0.0.1:8983_solr    ] o.a.s.c.Overseer Overseer (id=null) closing
   [junit4]   2> 3578111 INFO  
(TEST-ZkControllerTest.testGetHostName-seed#[5605FCAB21053825]) 
[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> 3578112 INFO  
(TEST-ZkControllerTest.testGetHostName-seed#[5605FCAB21053825]) 
[n:127.0.0.1:8983_solr    ] o.a.s.c.Overseer Overseer 
(id=72556109066797058-127.0.0.1:8983_solr-n_0000000000) starting
   [junit4]   2> 3578188 INFO  (zkConnectionManagerCallback-2685-thread-1) [    
] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3578197 INFO  
(TEST-ZkControllerTest.testGetHostName-seed#[5605FCAB21053825]) 
[n:127.0.0.1:8983_solr    ] o.a.s.c.s.i.ZkClientClusterStateProvider Cluster at 
127.0.0.1:36664/solr ready
   [junit4]   2> 3578251 INFO  
(TEST-ZkControllerTest.testGetHostName-seed#[5605FCAB21053825]) 
[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> 3578253 INFO  
(TEST-ZkControllerTest.testGetHostName-seed#[5605FCAB21053825]) 
[n:127.0.0.1:8983_solr    ] o.a.s.c.Overseer Overseer 
(id=72556109066797058-127.0.0.1:8983_solr-n_0000000000) closing
   [junit4]   2> 3578287 INFO  (zkCallback-2684-thread-1) [    ] 
o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 3578288 INFO  
(OverseerStateUpdate-72556109066797058-127.0.0.1:8983_solr-n_0000000000) [    ] 
o.a.s.c.Overseer Overseer Loop exiting : 127.0.0.1:8983_solr
   [junit4]   2> 3578288 INFO  (zkCallback-2677-thread-1) [    ] 
o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 3578361 WARN  (OverseerExitThread) [    ] o.a.s.c.Overseer I'm 
exiting, but I'm still the leader
   [junit4]   2> 3578498 WARN  
(OverseerAutoScalingTriggerThread-72556109066797058-127.0.0.1:8983_solr-n_0000000000)
 [    ] o.a.s.c.a.OverseerTriggerThread OverseerTriggerThread has been closed, 
exiting.
   [junit4]   2> 3578500 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 
0x101c56593360003, likely client has closed socket
   [junit4]   2> 3578500 INFO  (OverseerExitThread) [    ] 
o.a.s.c.OverseerElectionContext I am going to be the leader 127.0.0.1:8983_solr
   [junit4]   2> 3578501 INFO  (OverseerExitThread) [    ] o.a.s.c.Overseer 
Overseer (id=72556109066797058-127.0.0.1:8983_solr-n_0000000001) starting
   [junit4]   2> 3578545 ERROR 
(OverseerAutoScalingTriggerThread-72556109066797058-127.0.0.1:8983_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:131)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_172]
   [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$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 3578545 ERROR 
(OverseerAutoScalingTriggerThread-72556109066797058-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$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:131)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_172]
   [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$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 3578546 ERROR 
(OverseerAutoScalingTriggerThread-72556109066797058-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$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:131)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_172]
   [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$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 3578546 ERROR 
(OverseerAutoScalingTriggerThread-72556109066797058-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$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:131)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_172]
   [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$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 3578563 ERROR 
(OverseerAutoScalingTriggerThread-72556109066797058-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$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:131)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_172]
   [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$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 3578563 ERROR 
(OverseerAutoScalingTriggerThread-72556109066797058-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$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:131)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_172]
   [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$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 3578564 ERROR 
(OverseerAutoScalingTriggerThread-72556109066797058-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$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:131)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_172]
   [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$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 3578564 ERROR 
(OverseerAutoScalingTriggerThread-72556109066797058-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$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:131)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_172]
   [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$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 3578565 ERROR 
(OverseerAutoScalingTriggerThread-72556109066797058-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$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:131)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_172]
   [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$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 3578565 ERROR 
(OverseerAutoScalingTriggerThread-72556109066797058-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$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:131)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_172]
   [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$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 3578565 ERROR 
(OverseerAutoScalingTriggerThread-72556109066797058-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$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:131)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_172]
   [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$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 3578566 ERROR 
(OverseerAutoScalingTriggerThread-72556109066797058-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$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:131)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_172]
   [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$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 3578566 ERROR 
(OverseerAutoScalingTriggerThread-72556109066797058-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$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:131)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_172]
   [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$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 3578566 ERROR 
(OverseerAutoScalingTriggerThread-72556109066797058-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$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:131)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_172]
   [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$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 3578567 ERROR 
(OverseerAutoScalingTriggerThread-72556109066797058-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$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:131)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_172]
   [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$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 3578599 ERROR 
(OverseerAutoScalingTriggerThread-72556109066797058-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$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:131)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_172]
   [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$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 3578600 ERROR 
(OverseerAutoScalingTriggerThread-72556109066797058-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$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:131)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_172]
   [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$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 3578600 ERROR 
(OverseerAutoScalingTriggerThread-72556109066797058-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$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:131)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_172]
   [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$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 3578601 ERROR 
(OverseerAutoScalingTriggerThread-72556109066797058-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$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:131)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_172]
   [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$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 3578601 ERROR 
(OverseerAutoScalingTriggerThread-72556109066797058-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$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:131)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_172]
   [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$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 3578624 ERROR 
(OverseerAutoScalingTriggerThread-72556109066797058-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$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:131)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_172]
   [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$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 3578625 ERROR 
(OverseerAutoScalingTriggerThread-72556109066797058-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$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:131)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_172]
   [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$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 3578625 ERROR 
(OverseerAutoScalingTriggerThread-72556109066797058-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$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:131)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_172]
   [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$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 3578625 ERROR 
(OverseerAutoScalingTriggerThread-72556109066797058-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$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:131)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_172]
   [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$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 3578626 ERROR 
(OverseerAutoScalingTriggerThread-72556109066797058-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$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:131)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_172]
   [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$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 3578626 ERROR 
(OverseerAutoScalingTriggerThread-72556109066797058-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$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:131)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_172]
   [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$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 3578626 ERROR 
(OverseerAutoScalingTriggerThread-72556109066797058-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$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:131)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_172]
   [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$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 3578636 ERROR 
(OverseerAutoScalingTriggerThread-72556109066797058-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$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:131)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_172]
   [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$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 3578637 ERROR 
(OverseerAutoScalingTriggerThread-72556109066797058-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$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:131)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_172]
   [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$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 3578637 ERROR 
(OverseerAutoScalingTriggerThread-72556109066797058-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$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:131)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_172]
   [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$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 3578637 ERROR 
(OverseerAutoScalingTriggerThread-72556109066797058-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$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:131)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_172]
   [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$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 3578638 ERROR 
(OverseerAutoScalingTriggerThread-72556109066797058-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$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:131)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_172]
   [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$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 3578638 ERROR 
(OverseerAutoScalingTriggerThread-72556109066797058-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$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:131)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_172]
   [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$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 3578638 ERROR 
(OverseerAutoScalingTriggerThread-72556109066797058-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$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:131)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_172]
   [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$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 3578639 ERROR 
(OverseerAutoScalingTriggerThread-72556109066797058-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$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:131)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_172]
   [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$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 3578639 ERROR 
(OverseerAutoScalingTriggerThread-72556109066797058-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$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:131)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_172]
   [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$5(SolrZkClient.java:340)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
 ~[java/:?]
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:340) 
~[java/:?]
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:176)
 ~[java/:?]
   [junit4]   2>        ... 3 more
   [junit4]   2> 3578639 ERROR 
(OverseerAutoScalingTriggerThread-72556109066797058-127.0.0.1:8983_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$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:131)
 [java/:?]
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_172]
   [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.clo

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

home/jenkins/jenkins-slave/workspace/Lucene-Solr-Tests-7.x/lucene/top-level-ivy-settings.xml

resolve:

ivy-availability-check:
[loadresource] Do not set property disallowed.ivy.jars.list as its length is 0.

-ivy-fail-disallowed-ivy-version:

ivy-fail:

ivy-configure:
[ivy:configure] :: loading settings :: file = 
/home/jenkins/jenkins-slave/workspace/Lucene-Solr-Tests-7.x/lucene/top-level-ivy-settings.xml

resolve:

ivy-availability-check:
[loadresource] Do not set property disallowed.ivy.jars.list as its length is 0.

-ivy-fail-disallowed-ivy-version:

ivy-fail:

ivy-configure:
[ivy:configure] :: loading settings :: file = 
/home/jenkins/jenkins-slave/workspace/Lucene-Solr-Tests-7.x/lucene/top-level-ivy-settings.xml

resolve:

ivy-availability-check:
[loadresource] Do not set property disallowed.ivy.jars.list as its length is 0.

-ivy-fail-disallowed-ivy-version:

ivy-fail:

ivy-configure:
[ivy:configure] :: loading settings :: file = 
/home/jenkins/jenkins-slave/workspace/Lucene-Solr-Tests-7.x/lucene/top-level-ivy-settings.xml

resolve:

ivy-availability-check:
[loadresource] Do not set property disallowed.ivy.jars.list as its length is 0.

-ivy-fail-disallowed-ivy-version:

ivy-fail:

ivy-configure:
[ivy:configure] :: loading settings :: file = 
/home/jenkins/jenkins-slave/workspace/Lucene-Solr-Tests-7.x/lucene/top-level-ivy-settings.xml

resolve:

jar-checksums:
    [mkdir] Created dir: 
/home/jenkins/jenkins-slave/workspace/Lucene-Solr-Tests-7.x/lucene/null120628759
     [copy] Copying 40 files to 
/home/jenkins/jenkins-slave/workspace/Lucene-Solr-Tests-7.x/lucene/null120628759
   [delete] Deleting directory 
/home/jenkins/jenkins-slave/workspace/Lucene-Solr-Tests-7.x/lucene/null120628759

resolve-example:

ivy-availability-check:
[loadresource] Do not set property disallowed.ivy.jars.list as its length is 0.

-ivy-fail-disallowed-ivy-version:

ivy-fail:

ivy-configure:
[ivy:configure] :: loading settings :: file = 
/home/jenkins/jenkins-slave/workspace/Lucene-Solr-Tests-7.x/lucene/top-level-ivy-settings.xml

resolve:

resolve-server:

ivy-availability-check:
[loadresource] Do not set property disallowed.ivy.jars.list as its length is 0.

-ivy-fail-disallowed-ivy-version:

ivy-fail:

ivy-fail:

ivy-configure:
[ivy:configure] :: loading settings :: file = 
/home/jenkins/jenkins-slave/workspace/Lucene-Solr-Tests-7.x/lucene/top-level-ivy-settings.xml

resolve:

resolve:

ivy-availability-check:
[loadresource] Do not set property disallowed.ivy.jars.list as its length is 0.

-ivy-fail-disallowed-ivy-version:

ivy-fail:

ivy-fail:

ivy-configure:
[ivy:configure] :: loading settings :: file = 
/home/jenkins/jenkins-slave/workspace/Lucene-Solr-Tests-7.x/lucene/top-level-ivy-settings.xml

resolve:

ivy-availability-check:
[loadresource] Do not set property disallowed.ivy.jars.list as its length is 0.

-ivy-fail-disallowed-ivy-version:

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[ivy:configure] :: loading settings :: file = 
/home/jenkins/jenkins-slave/workspace/Lucene-Solr-Tests-7.x/lucene/top-level-ivy-settings.xml

resolve:

ivy-availability-check:
[loadresource] Do not set property disallowed.ivy.jars.list as its length is 0.

-ivy-fail-disallowed-ivy-version:

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[ivy:configure] :: loading settings :: file = 
/home/jenkins/jenkins-slave/workspace/Lucene-Solr-Tests-7.x/lucene/top-level-ivy-settings.xml

resolve:

ivy-availability-check:
[loadresource] Do not set property disallowed.ivy.jars.list as its length is 0.

-ivy-fail-disallowed-ivy-version:

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[ivy:configure] :: loading settings :: file = 
/home/jenkins/jenkins-slave/workspace/Lucene-Solr-Tests-7.x/lucene/top-level-ivy-settings.xml

resolve:

ivy-availability-check:
[loadresource] Do not set property disallowed.ivy.jars.list as its length is 0.

-ivy-fail-disallowed-ivy-version:

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[ivy:configure] :: loading settings :: file = 
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resolve:

ivy-availability-check:
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-ivy-fail-disallowed-ivy-version:

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[ivy:configure] :: loading settings :: file = 
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resolve:

ivy-availability-check:
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[ivy:configure] :: loading settings :: file = 
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[loadresource] Do not set property disallowed.ivy.jars.list as its length is 0.

-ivy-fail-disallowed-ivy-version:

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[ivy:configure] :: loading settings :: file = 
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resolve:

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[loadresource] Do not set property disallowed.ivy.jars.list as its length is 0.

-ivy-fail-disallowed-ivy-version:

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[ivy:configure] :: loading settings :: file = 
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[ivy:configure] :: loading settings :: file = 
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resolve:

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[loadresource] Do not set property disallowed.ivy.jars.list as its length is 0.

-ivy-fail-disallowed-ivy-version:

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[ivy:configure] :: loading settings :: file = 
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resolve:

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[ivy:configure] :: loading settings :: file = 
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[loadresource] Do not set property disallowed.ivy.jars.list as its length is 0.

-ivy-fail-disallowed-ivy-version:

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[ivy:configure] :: loading settings :: file = 
/home/jenkins/jenkins-slave/workspace/Lucene-Solr-Tests-7.x/lucene/top-level-ivy-settings.xml

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[loadresource] Do not set property disallowed.ivy.jars.list as its length is 0.

-ivy-fail-disallowed-ivy-version:

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[ivy:configure] :: loading settings :: file = 
/home/jenkins/jenkins-slave/workspace/Lucene-Solr-Tests-7.x/lucene/top-level-ivy-settings.xml

resolve:

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[loadresource] Do not set property disallowed.ivy.jars.list as its length is 0.

-ivy-fail-disallowed-ivy-version:

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[ivy:configure] :: loading settings :: file = 
/home/jenkins/jenkins-slave/workspace/Lucene-Solr-Tests-7.x/lucene/top-level-ivy-settings.xml

resolve:

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[ivy:configure] :: loading settings :: file = 
/home/jenkins/jenkins-slave/workspace/Lucene-Solr-Tests-7.x/lucene/top-level-ivy-settings.xml

resolve:

jar-checksums:
    [mkdir] Created dir: 
/home/jenkins/jenkins-slave/workspace/Lucene-Solr-Tests-7.x/solr/null1611230558
     [copy] Copying 246 files to 
/home/jenkins/jenkins-slave/workspace/Lucene-Solr-Tests-7.x/solr/null1611230558
   [delete] Deleting directory 
/home/jenkins/jenkins-slave/workspace/Lucene-Solr-Tests-7.x/solr/null1611230558

check-working-copy:
[ivy:cachepath] :: resolving dependencies :: 
org.eclipse.jgit#org.eclipse.jgit-caller;working
[ivy:cachepath]         confs: [default]
[ivy:cachepath]         found 
org.eclipse.jgit#org.eclipse.jgit;4.6.0.201612231935-r in public
[ivy:cachepath]         found com.jcraft#jsch;0.1.53 in public
[ivy:cachepath]         found com.googlecode.javaewah#JavaEWAH;1.1.6 in public
[ivy:cachepath]         found org.apache.httpcomponents#httpclient;4.3.6 in 
public
[ivy:cachepath]         found org.apache.httpcomponents#httpcore;4.3.3 in public
[ivy:cachepath]         found commons-logging#commons-logging;1.1.3 in public
[ivy:cachepath]         found commons-codec#commons-codec;1.6 in public
[ivy:cachepath]         found org.slf4j#slf4j-api;1.7.2 in public
[ivy:cachepath] :: resolution report :: resolve 74ms :: artifacts dl 1ms
        ---------------------------------------------------------------------
        |                  |            modules            ||   artifacts   |
        |       conf       | number| search|dwnlded|evicted|| number|dwnlded|
        ---------------------------------------------------------------------
        |      default     |   8   |   0   |   0   |   0   ||   8   |   0   |
        ---------------------------------------------------------------------
[wc-checker] Initializing working copy...
[wc-checker] SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
[wc-checker] SLF4J: Defaulting to no-operation (NOP) logger implementation
[wc-checker] SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for 
further details.
[wc-checker] Checking working copy status...

-jenkins-base:

BUILD SUCCESSFUL
Total time: 276 minutes 8 seconds
Archiving artifacts
WARN: No artifacts found that match the file pattern 
"**/*.events,heapdumps/**,**/hs_err_pid*". Configuration error?
WARN: java.lang.InterruptedException: no matches found within 10000
Recording test results
Build step 'Publish JUnit test result report' changed build result to UNSTABLE
Email was triggered for: Unstable (Test Failures)
Sending email for trigger: Unstable (Test Failures)

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[JENKINS] Lucene-Solr-Tests-7.x - Build # 592 - Unstable

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