Build: https://jenkins.thetaphi.de/job/Lucene-Solr-7.x-Linux/912/
Java: 32bit/jdk1.8.0_144 -server -XX:+UseConcMarkSweepGC

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

Error Message:
shard got no id?

Stack Trace:
java.lang.AssertionError: shard got no id?
        at 
__randomizedtesting.SeedInfo.seed([CB084EB02EDC6E6A:7BA584FB77A938F2]:0)
        at org.junit.Assert.fail(Assert.java:93)
        at org.junit.Assert.assertTrue(Assert.java:43)
        at org.junit.Assert.assertNotNull(Assert.java:526)
        at 
org.apache.solr.cloud.OverseerTest.testBadQueueItem(OverseerTest.java:384)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1737)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$8.evaluate(RandomizedRunner.java:934)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$9.evaluate(RandomizedRunner.java:970)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$10.evaluate(RandomizedRunner.java:984)
        at 
com.carrotsearch.randomizedtesting.rules.SystemPropertiesRestoreRule$1.evaluate(SystemPropertiesRestoreRule.java:57)
        at 
org.apache.lucene.util.TestRuleSetupTeardownChained$1.evaluate(TestRuleSetupTeardownChained.java:49)
        at 
org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:45)
        at 
org.apache.lucene.util.TestRuleThreadAndTestName$1.evaluate(TestRuleThreadAndTestName.java:48)
        at 
org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:64)
        at 
org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:47)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:368)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl.forkTimeoutingTask(ThreadLeakControl.java:817)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$3.evaluate(ThreadLeakControl.java:468)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.runSingleTest(RandomizedRunner.java:943)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$5.evaluate(RandomizedRunner.java:829)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$6.evaluate(RandomizedRunner.java:879)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:890)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.rules.SystemPropertiesRestoreRule$1.evaluate(SystemPropertiesRestoreRule.java:57)
        at 
org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:45)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
org.apache.lucene.util.TestRuleStoreClassName$1.evaluate(TestRuleStoreClassName.java:41)
        at 
com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
        at 
com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
org.apache.lucene.util.TestRuleAssertionsRequired$1.evaluate(TestRuleAssertionsRequired.java:53)
        at 
org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:47)
        at 
org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:64)
        at 
org.apache.lucene.util.TestRuleIgnoreTestSuites$1.evaluate(TestRuleIgnoreTestSuites.java:54)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:368)
        at java.lang.Thread.run(Thread.java:748)




Build Log:
[...truncated 12694 lines...]
   [junit4] Suite: org.apache.solr.cloud.OverseerTest
   [junit4]   2> 1160701 INFO  
(SUITE-OverseerTest-seed#[CB084EB02EDC6E6A]-worker) [    ] o.a.s.SolrTestCaseJ4 
SecureRandom sanity checks: test.solr.allowed.securerandom=null & 
java.security.egd=file:/dev/./urandom
   [junit4]   2> Creating dataDir: 
/home/jenkins/workspace/Lucene-Solr-7.x-Linux/solr/build/solr-core/test/J2/temp/solr.cloud.OverseerTest_CB084EB02EDC6E6A-001/init-core-data-001
   [junit4]   2> 1160702 WARN  
(SUITE-OverseerTest-seed#[CB084EB02EDC6E6A]-worker) [    ] o.a.s.SolrTestCaseJ4 
startTrackingSearchers: numOpens=2 numCloses=2
   [junit4]   2> 1160702 INFO  
(SUITE-OverseerTest-seed#[CB084EB02EDC6E6A]-worker) [    ] o.a.s.SolrTestCaseJ4 
Using PointFields (NUMERIC_POINTS_SYSPROP=true) 
w/NUMERIC_DOCVALUES_SYSPROP=false
   [junit4]   2> 1160704 INFO  
(SUITE-OverseerTest-seed#[CB084EB02EDC6E6A]-worker) [    ] o.a.s.SolrTestCaseJ4 
Randomized ssl (true) and clientAuth (true) via: 
@org.apache.solr.util.RandomizeSSL(reason=, ssl=NaN, value=NaN, clientAuth=NaN)
   [junit4]   2> 1160705 INFO  
(SUITE-OverseerTest-seed#[CB084EB02EDC6E6A]-worker) [    ] o.a.s.SolrTestCaseJ4 
####initCore
   [junit4]   2> 1160705 INFO  
(SUITE-OverseerTest-seed#[CB084EB02EDC6E6A]-worker) [    ] o.a.s.SolrTestCaseJ4 
####initCore end
   [junit4]   2> 1160725 INFO  
(TEST-OverseerTest.testStateChange-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.SolrTestCaseJ4 ###Starting testStateChange
   [junit4]   2> 1160726 INFO  
(TEST-OverseerTest.testStateChange-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.ZkTestServer STARTING ZK TEST SERVER
   [junit4]   2> 1160741 INFO  (Thread-7003) [    ] o.a.s.c.ZkTestServer client 
port:0.0.0.0/0.0.0.0:0
   [junit4]   2> 1160741 INFO  (Thread-7003) [    ] o.a.s.c.ZkTestServer 
Starting server
   [junit4]   2> 1160770 ERROR (Thread-7003) [    ] 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> 1160841 INFO  
(TEST-OverseerTest.testStateChange-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.ZkTestServer start zk server on port:36537
   [junit4]   2> 1161198 INFO  
(TEST-OverseerTest.testStateChange-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.Overseer Overseer (id=null) closing
   [junit4]   2> 1161198 INFO  
(TEST-OverseerTest.testStateChange-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.OverseerElectionContext I am going to be the leader 127.0.0.1:36537_solr
   [junit4]   2> 1161199 INFO  
(TEST-OverseerTest.testStateChange-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.Overseer Overseer 
(id=99073823226920963-127.0.0.1:36537_solr-n_0000000000) starting
   [junit4]   2> 1161517 ERROR 
(TEST-OverseerTest.testStateChange-seed#[CB084EB02EDC6E6A]) [    ] 
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> 1161517 INFO  
(TEST-OverseerTest.testStateChange-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.ZkTestServer connecting to 127.0.0.1:36537 36537
   [junit4]   2> 1161627 INFO  (Thread-7003) [    ] o.a.s.c.ZkTestServer 
connecting to 127.0.0.1:36537 36537
   [junit4]   2> 1161628 WARN  (Thread-7003) [    ] o.a.s.c.ZkTestServer Watch 
limit violations: 
   [junit4]   2> Maximum concurrent create/delete watches above limit:
   [junit4]   2> 
   [junit4]   2>        2       /solr/aliases.json
   [junit4]   2>        2       /solr/clusterprops.json
   [junit4]   2> 
   [junit4]   2> Maximum concurrent data watches above limit:
   [junit4]   2> 
   [junit4]   2>        2       /solr/clusterstate.json
   [junit4]   2> 
   [junit4]   2> Maximum concurrent children watches above limit:
   [junit4]   2> 
   [junit4]   2>        2       /solr/live_nodes
   [junit4]   2>        2       /solr/collections
   [junit4]   2> 
   [junit4]   2> 1161628 INFO  
(TEST-OverseerTest.testStateChange-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.SolrTestCaseJ4 ###Ending testStateChange
   [junit4]   2> 1161628 INFO  
(TEST-OverseerTest.testStateChange-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.Overseer Overseer 
(id=99073823226920963-127.0.0.1:36537_solr-n_0000000000) closing
   [junit4]   2> 1161628 INFO  
(OverseerStateUpdate-99073823226920963-127.0.0.1:36537_solr-n_0000000000) [    
] o.a.s.c.Overseer Overseer Loop exiting : 127.0.0.1:36537_solr
   [junit4]   2> 1161629 WARN  
(OverseerAutoScalingTriggerThread-99073823226920963-127.0.0.1:36537_solr-n_0000000000)
 [    ] o.a.s.c.a.OverseerTriggerThread OverseerTriggerThread woken up but we 
are closed, exiting.
   [junit4]   2> 1161635 ERROR (OverseerExitThread) [    ] o.a.s.c.Overseer 
could not read the data
   [junit4]   2> org.apache.zookeeper.KeeperException$SessionExpiredException: 
KeeperErrorCode = Session expired for /overseer_elect/leader
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:127)
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1212)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.cloud.Overseer$ClusterStateUpdater.checkIfIamStillLeader(Overseer.java:301)
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> 1161636 INFO  
(TEST-OverseerTest.testOverseerStatsReset-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.SolrTestCaseJ4 ###Starting testOverseerStatsReset
   [junit4]   2> 1161636 INFO  
(TEST-OverseerTest.testOverseerStatsReset-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.ZkTestServer STARTING ZK TEST SERVER
   [junit4]   2> 1161636 INFO  (Thread-7004) [    ] o.a.s.c.ZkTestServer client 
port:0.0.0.0/0.0.0.0:0
   [junit4]   2> 1161636 INFO  (Thread-7004) [    ] o.a.s.c.ZkTestServer 
Starting server
   [junit4]   2> 1161645 ERROR (Thread-7004) [    ] 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> 1161736 INFO  
(TEST-OverseerTest.testOverseerStatsReset-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.ZkTestServer start zk server on port:36797
   [junit4]   2> 1161741 WARN  (NIOServerCxn.Factory:0.0.0.0/0.0.0.0:0) [    ] 
o.a.z.s.NIOServerCnxn caught end of stream exception
   [junit4]   2> EndOfStreamException: Unable to read additional data from 
client sessionid 0x15ffb1e0b6d0000, likely client has closed socket
   [junit4]   2>        at 
org.apache.zookeeper.server.NIOServerCnxn.doIO(NIOServerCnxn.java:239)
   [junit4]   2>        at 
org.apache.zookeeper.server.NIOServerCnxnFactory.run(NIOServerCnxnFactory.java:203)
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> 1161744 WARN  (NIOServerCxn.Factory:0.0.0.0/0.0.0.0:0) [    ] 
o.a.z.s.NIOServerCnxn caught end of stream exception
   [junit4]   2> EndOfStreamException: Unable to read additional data from 
client sessionid 0x15ffb1e0b6d0001, likely client has closed socket
   [junit4]   2>        at 
org.apache.zookeeper.server.NIOServerCnxn.doIO(NIOServerCnxn.java:239)
   [junit4]   2>        at 
org.apache.zookeeper.server.NIOServerCnxnFactory.run(NIOServerCnxnFactory.java:203)
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> 1161777 INFO  (zkCallback-1484-thread-1) [    ] 
o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 1161777 INFO  (zkCallback-1486-thread-1) [    ] 
o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 1161783 INFO  
(TEST-OverseerTest.testOverseerStatsReset-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.Overseer Overseer (id=null) closing
   [junit4]   2> 1161783 INFO  
(TEST-OverseerTest.testOverseerStatsReset-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.OverseerElectionContext I am going to be the leader 127.0.0.1:36797_solr
   [junit4]   2> 1161783 INFO  
(TEST-OverseerTest.testOverseerStatsReset-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.Overseer Overseer 
(id=99073823284723714-127.0.0.1:36797_solr-n_0000000000) starting
   [junit4]   2> 1162293 INFO  
(TEST-OverseerTest.testOverseerStatsReset-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.Overseer Overseer 
(id=99073823284723714-127.0.0.1:36797_solr-n_0000000000) closing
   [junit4]   2> 1162293 WARN  
(OverseerAutoScalingTriggerThread-99073823284723714-127.0.0.1:36797_solr-n_0000000000)
 [    ] o.a.s.c.a.OverseerTriggerThread OverseerTriggerThread woken up but we 
are closed, exiting.
   [junit4]   2> 1162293 INFO  
(OverseerStateUpdate-99073823284723714-127.0.0.1:36797_solr-n_0000000000) [    
] o.a.s.c.Overseer Overseer Loop exiting : 127.0.0.1:36797_solr
   [junit4]   2> 1162294 INFO  
(TEST-OverseerTest.testOverseerStatsReset-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.OverseerElectionContext I am going to be the leader 127.0.0.1:36797_solr
   [junit4]   2> 1162295 WARN  (OverseerExitThread) [    ] o.a.s.c.Overseer I'm 
exiting, but I'm still the leader
   [junit4]   2> 1162295 ERROR 
(TEST-OverseerTest.testOverseerStatsReset-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.LeaderElector node exists
   [junit4]   2> org.apache.zookeeper.KeeperException$NodeExistsException: 
KeeperErrorCode = NodeExists for /overseer_elect/leader
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:119)
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.create(ZooKeeper.java:783)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$makePath$8(SolrZkClient.java:488)
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.makePath(SolrZkClient.java:487)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.makePath(SolrZkClient.java:430)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.makePath(SolrZkClient.java:417)
   [junit4]   2>        at 
org.apache.solr.cloud.OverseerElectionContext.runLeaderProcess(ElectionContext.java:788)
   [junit4]   2>        at 
org.apache.solr.cloud.LeaderElector.runIamLeaderProcess(LeaderElector.java:170)
   [junit4]   2>        at 
org.apache.solr.cloud.LeaderElector.checkIfIamLeader(LeaderElector.java:135)
   [junit4]   2>        at 
org.apache.solr.cloud.LeaderElector.joinElection(LeaderElector.java:307)
   [junit4]   2>        at 
org.apache.solr.cloud.LeaderElector.joinElection(LeaderElector.java:216)
   [junit4]   2>        at 
org.apache.solr.cloud.OverseerTest.testOverseerStatsReset(OverseerTest.java:707)
   [junit4]   2>        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native 
Method)
   [junit4]   2>        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
   [junit4]   2>        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   [junit4]   2>        at java.lang.reflect.Method.invoke(Method.java:498)
   [junit4]   2>        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1737)
   [junit4]   2>        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$8.evaluate(RandomizedRunner.java:934)
   [junit4]   2>        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$9.evaluate(RandomizedRunner.java:970)
   [junit4]   2>        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$10.evaluate(RandomizedRunner.java:984)
   [junit4]   2>        at 
com.carrotsearch.randomizedtesting.rules.SystemPropertiesRestoreRule$1.evaluate(SystemPropertiesRestoreRule.java:57)
   [junit4]   2>        at 
org.apache.lucene.util.TestRuleSetupTeardownChained$1.evaluate(TestRuleSetupTeardownChained.java:49)
   [junit4]   2>        at 
org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:45)
   [junit4]   2>        at 
org.apache.lucene.util.TestRuleThreadAndTestName$1.evaluate(TestRuleThreadAndTestName.java:48)
   [junit4]   2>        at 
org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:64)
   [junit4]   2>        at 
org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:47)
   [junit4]   2>        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
   [junit4]   2>        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:368)
   [junit4]   2>        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl.forkTimeoutingTask(ThreadLeakControl.java:817)
   [junit4]   2>        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$3.evaluate(ThreadLeakControl.java:468)
   [junit4]   2>        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.runSingleTest(RandomizedRunner.java:943)
   [junit4]   2>        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$5.evaluate(RandomizedRunner.java:829)
   [junit4]   2>        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$6.evaluate(RandomizedRunner.java:879)
   [junit4]   2>        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:890)
   [junit4]   2>        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
   [junit4]   2>        at 
com.carrotsearch.randomizedtesting.rules.SystemPropertiesRestoreRule$1.evaluate(SystemPropertiesRestoreRule.java:57)
   [junit4]   2>        at 
org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:45)
   [junit4]   2>        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
   [junit4]   2>        at 
org.apache.lucene.util.TestRuleStoreClassName$1.evaluate(TestRuleStoreClassName.java:41)
   [junit4]   2>        at 
com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
   [junit4]   2>        at 
com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
   [junit4]   2>        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
   [junit4]   2>        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
   [junit4]   2>        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
   [junit4]   2>        at 
org.apache.lucene.util.TestRuleAssertionsRequired$1.evaluate(TestRuleAssertionsRequired.java:53)
   [junit4]   2>        at 
org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:47)
   [junit4]   2>        at 
org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:64)
   [junit4]   2>        at 
org.apache.lucene.util.TestRuleIgnoreTestSuites$1.evaluate(TestRuleIgnoreTestSuites.java:54)
   [junit4]   2>        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
   [junit4]   2>        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:368)
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> 1162296 INFO  
(TEST-OverseerTest.testOverseerStatsReset-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.OverseerElectionContext I am going to be the leader 127.0.0.1:36797_solr
   [junit4]   2> 1162296 INFO  
(TEST-OverseerTest.testOverseerStatsReset-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.Overseer Overseer 
(id=99073823284723714-127.0.0.1:36797_solr-n_0000000002) starting
   [junit4]   2> 1162297 WARN  (OverseerExitThread) [    ] o.a.s.c.Overseer 
Unable to rejoinElection 
   [junit4]   2> org.apache.solr.common.SolrException: Unable to rejoin election
   [junit4]   2>        at 
org.apache.solr.cloud.ZkController.rejoinOverseerElection(ZkController.java:1980)
   [junit4]   2>        at 
org.apache.solr.cloud.Overseer$ClusterStateUpdater.checkIfIamStillLeader(Overseer.java:326)
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> Caused by: java.lang.NullPointerException
   [junit4]   2>        at 
org.apache.solr.cloud.ZkController.rejoinOverseerElection(ZkController.java:1977)
   [junit4]   2>        at 
org.apache.solr.cloud.MockZkController$MockitoMock$1537493182.rejoinOverseerElection$accessor$vj0D1Sgz(Unknown
 Source)
   [junit4]   2>        at 
org.apache.solr.cloud.MockZkController$MockitoMock$1537493182$auxiliary$UcJ8OSex.call(Unknown
 Source)
   [junit4]   2>        at 
org.mockito.internal.creation.bytebuddy.InterceptedInvocation$SuperMethod$FromCallable.invoke(InterceptedInvocation.java:195)
   [junit4]   2>        at 
org.mockito.internal.creation.bytebuddy.InterceptedInvocation.callRealMethod(InterceptedInvocation.java:131)
   [junit4]   2>        at 
org.mockito.internal.stubbing.answers.CallsRealMethods.answer(CallsRealMethods.java:43)
   [junit4]   2>        at org.mockito.Answers.answer(Answers.java:100)
   [junit4]   2>        at 
org.mockito.internal.handler.MockHandlerImpl.handle(MockHandlerImpl.java:97)
   [junit4]   2>        at 
org.mockito.internal.handler.NullResultGuardian.handle(NullResultGuardian.java:32)
   [junit4]   2>        at 
org.mockito.internal.handler.InvocationNotifierHandler.handle(InvocationNotifierHandler.java:36)
   [junit4]   2>        at 
org.mockito.internal.creation.bytebuddy.MockMethodInterceptor.doIntercept(MockMethodInterceptor.java:41)
   [junit4]   2>        at 
org.mockito.internal.creation.bytebuddy.MockMethodInterceptor$DispatcherDefaultingToRealMethod.interceptSuperCallable(MockMethodInterceptor.java:102)
   [junit4]   2>        at 
org.apache.solr.cloud.MockZkController$MockitoMock$1537493182.rejoinOverseerElection(Unknown
 Source)
   [junit4]   2>        ... 2 more
   [junit4]   2> 1162302 INFO  (zkCallback-1484-thread-2) [    ] 
o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (0)
   [junit4]   2> 1162303 INFO  (zkCallback-1486-thread-1) [    ] 
o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (0)
   [junit4]   2> 1162303 WARN  (NIOServerCxn.Factory:0.0.0.0/0.0.0.0:0) [    ] 
o.a.z.s.NIOServerCnxn caught end of stream exception
   [junit4]   2> EndOfStreamException: Unable to read additional data from 
client sessionid 0x15ffb1e0b6d0003, likely client has closed socket
   [junit4]   2>        at 
org.apache.zookeeper.server.NIOServerCnxn.doIO(NIOServerCnxn.java:239)
   [junit4]   2>        at 
org.apache.zookeeper.server.NIOServerCnxnFactory.run(NIOServerCnxnFactory.java:203)
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> 1162303 WARN  (zkCallback-1486-thread-2) [    ] 
o.a.s.c.c.ZkStateReader ZooKeeper watch triggered, but Solr cannot talk to ZK: 
[KeeperErrorCode = Session expired for /clusterstate.json]
   [junit4]   2> 1163804 WARN  (zkCallback-1484-thread-2) [    ] 
o.a.s.c.c.ZkStateReader ZooKeeper watch triggered, but Solr cannot talk to ZK: 
[KeeperErrorCode = Session expired for /clusterstate.json]
   [junit4]   2> 1163805 WARN  (ScheduledTrigger-4074-thread-1) [    ] 
o.a.s.c.a.TriggerBase Exception getting trigger state 
'/autoscaling/triggerState/.auto_add_replicas'
   [junit4]   2> org.apache.zookeeper.KeeperException$SessionExpiredException: 
KeeperErrorCode = Session expired for 
/autoscaling/triggerState/.auto_add_replicas
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:127)
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:1102)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$exists$3(SolrZkClient.java:308)
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.exists(SolrZkClient.java:308)
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.hasData(ZkDistribStateManager.java:57)
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.TriggerBase.restoreState(TriggerBase.java:221)
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.ScheduledTriggers$ScheduledTrigger.run(ScheduledTriggers.java:471)
   [junit4]   2>        at 
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
   [junit4]   2>        at 
java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
   [junit4]   2>        at 
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
   [junit4]   2>        at 
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
   [junit4]   2>        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
   [junit4]   2>        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> 1163804 WARN  
(OverseerCollectionConfigSetProcessor-99073823284723714-127.0.0.1:36797_solr-n_0000000002)
 [    ] o.a.s.c.OverseerTaskProcessor Overseer cannot talk to ZK
   [junit4]   2> 1163805 WARN  
(OverseerStateUpdate-99073823284723714-127.0.0.1:36797_solr-n_0000000002) [    
] o.a.s.c.Overseer Solr cannot talk to ZK, exiting Overseer main queue loop
   [junit4]   2> org.apache.zookeeper.KeeperException$SessionExpiredException: 
KeeperErrorCode = Session expired
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:127)
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.multiInternal(ZooKeeper.java:992)
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.multi(ZooKeeper.java:910)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$multi$9(SolrZkClient.java:550)
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.multi(SolrZkClient.java:550)
   [junit4]   2>        at 
org.apache.solr.cloud.ZkDistributedQueue.remove(ZkDistributedQueue.java:231)
   [junit4]   2>        at 
org.apache.solr.cloud.Overseer$ClusterStateUpdater.lambda$run$1(Overseer.java:225)
   [junit4]   2>        at 
org.apache.solr.cloud.overseer.ZkStateWriter.enqueueUpdate(ZkStateWriter.java:132)
   [junit4]   2>        at 
org.apache.solr.cloud.Overseer$ClusterStateUpdater.processQueueItem(Overseer.java:287)
   [junit4]   2>        at 
org.apache.solr.cloud.Overseer$ClusterStateUpdater.run(Overseer.java:224)
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> 1163805 ERROR 
(TEST-OverseerTest.testOverseerStatsReset-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.z.s.ZooKeeperServer ZKShutdownHandler is not registered, so ZooKeeper 
server won't take any action on ERROR or SHUTDOWN server state changes
   [junit4]   2> 1163806 INFO  
(OverseerStateUpdate-99073823284723714-127.0.0.1:36797_solr-n_0000000002) [    
] o.a.s.c.Overseer Overseer Loop exiting : 127.0.0.1:36797_solr
   [junit4]   2> 1163806 WARN  (ScheduledTrigger-4074-thread-1) [    ] 
o.a.s.c.a.TriggerBase Exception updating trigger state 
'/autoscaling/triggerState/.auto_add_replicas'
   [junit4]   2> org.apache.zookeeper.KeeperException$SessionExpiredException: 
KeeperErrorCode = Session expired for 
/autoscaling/triggerState/.auto_add_replicas
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:127)
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:1102)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$exists$3(SolrZkClient.java:308)
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.exists(SolrZkClient.java:308)
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.hasData(ZkDistribStateManager.java:57)
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.TriggerBase.saveState(TriggerBase.java:203)
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.ScheduledTriggers$ScheduledTrigger.run(ScheduledTriggers.java:486)
   [junit4]   2>        at 
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
   [junit4]   2>        at 
java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
   [junit4]   2>        at 
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
   [junit4]   2>        at 
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
   [junit4]   2>        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
   [junit4]   2>        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> 1163807 INFO  
(TEST-OverseerTest.testOverseerStatsReset-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.ZkTestServer connecting to 127.0.0.1:36797 36797
   [junit4]   2> 1163808 ERROR (OverseerExitThread) [    ] o.a.s.c.Overseer 
could not read the data
   [junit4]   2> org.apache.zookeeper.KeeperException$SessionExpiredException: 
KeeperErrorCode = Session expired for /overseer_elect/leader
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:127)
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1212)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.cloud.Overseer$ClusterStateUpdater.checkIfIamStillLeader(Overseer.java:301)
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> 1163844 INFO  (Thread-7004) [    ] o.a.s.c.ZkTestServer 
connecting to 127.0.0.1:36797 36797
   [junit4]   2> 1163845 WARN  (Thread-7004) [    ] o.a.s.c.ZkTestServer Watch 
limit violations: 
   [junit4]   2> Maximum concurrent create/delete watches above limit:
   [junit4]   2> 
   [junit4]   2>        2       /solr/aliases.json
   [junit4]   2>        2       /solr/clusterprops.json
   [junit4]   2> 
   [junit4]   2> Maximum concurrent data watches above limit:
   [junit4]   2> 
   [junit4]   2>        2       /solr/clusterstate.json
   [junit4]   2>        2       /solr/autoscaling.json
   [junit4]   2> 
   [junit4]   2> Maximum concurrent children watches above limit:
   [junit4]   2> 
   [junit4]   2>        2       /solr/overseer/queue
   [junit4]   2>        2       /solr/live_nodes
   [junit4]   2>        2       /solr/autoscaling/events/.auto_add_replicas
   [junit4]   2>        2       /solr/collections
   [junit4]   2>        2       /solr/overseer/queue-work
   [junit4]   2> 
   [junit4]   2> 1163845 INFO  
(TEST-OverseerTest.testOverseerStatsReset-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.SolrTestCaseJ4 ###Ending testOverseerStatsReset
   [junit4]   2> 1163845 INFO  
(TEST-OverseerTest.testOverseerStatsReset-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.Overseer Overseer 
(id=99073823284723714-127.0.0.1:36797_solr-n_0000000002) closing
   [junit4]   2> 1163845 WARN  
(OverseerAutoScalingTriggerThread-99073823284723714-127.0.0.1:36797_solr-n_0000000002)
 [    ] o.a.s.c.a.OverseerTriggerThread OverseerTriggerThread woken up but we 
are closed, exiting.
   [junit4]   2> 1163847 INFO  
(TEST-OverseerTest.testOverseerFailure-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.SolrTestCaseJ4 ###Starting testOverseerFailure
   [junit4]   2> 1163848 INFO  
(TEST-OverseerTest.testOverseerFailure-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.ZkTestServer STARTING ZK TEST SERVER
   [junit4]   2> 1163848 INFO  (Thread-7005) [    ] o.a.s.c.ZkTestServer client 
port:0.0.0.0/0.0.0.0:0
   [junit4]   2> 1163848 INFO  (Thread-7005) [    ] o.a.s.c.ZkTestServer 
Starting server
   [junit4]   2> 1163849 ERROR (Thread-7005) [    ] 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> 1163948 INFO  
(TEST-OverseerTest.testOverseerFailure-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.ZkTestServer start zk server on port:46635
   [junit4]   2> 1163983 INFO  (zkCallback-1495-thread-1) [    ] 
o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 1163983 INFO  (zkCallback-1493-thread-1) [    ] 
o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 1163986 INFO  
(TEST-OverseerTest.testOverseerFailure-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.Overseer Overseer (id=null) closing
   [junit4]   2> 1163987 INFO  
(TEST-OverseerTest.testOverseerFailure-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.OverseerElectionContext I am going to be the leader 127.0.0.1:46635_solr
   [junit4]   2> 1163987 INFO  
(TEST-OverseerTest.testOverseerFailure-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.Overseer Overseer 
(id=99073823429623812-127.0.0.1:46635_solr-n_0000000000) starting
   [junit4]   2> 1163994 INFO  
(OverseerStateUpdate-99073823429623812-127.0.0.1:46635_solr-n_0000000000) [    
] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 1165995 INFO  
(OverseerCollectionConfigSetProcessor-99073823429623812-127.0.0.1:46635_solr-n_0000000000)
 [    ] o.a.s.c.OverseerTaskProcessor According to ZK I 
(id=99073823429623812-127.0.0.1:46635_solr-n_0000000000) am no longer a leader.
   [junit4]   2> 1166685 INFO  
(TEST-OverseerTest.testOverseerFailure-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.Overseer Overseer 
(id=99073823429623812-127.0.0.1:46635_solr-n_0000000000) closing
   [junit4]   2> 1166686 INFO  
(OverseerStateUpdate-99073823429623812-127.0.0.1:46635_solr-n_0000000000) [    
] o.a.s.c.Overseer Overseer Loop exiting : 127.0.0.1:46635_solr
   [junit4]   2> 1166686 WARN  
(OverseerAutoScalingTriggerThread-99073823429623812-127.0.0.1:46635_solr-n_0000000000)
 [    ] o.a.s.c.a.OverseerTriggerThread OverseerTriggerThread woken up but we 
are closed, exiting.
   [junit4]   2> 1166704 ERROR (OverseerExitThread) [    ] o.a.s.c.Overseer 
could not read the data
   [junit4]   2> org.apache.zookeeper.KeeperException$SessionExpiredException: 
KeeperErrorCode = Session expired for /overseer_elect/leader
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:127)
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1212)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.cloud.Overseer$ClusterStateUpdater.checkIfIamStillLeader(Overseer.java:301)
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> 1166706 INFO  
(TEST-OverseerTest.testOverseerFailure-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.Overseer Overseer (id=null) closing
   [junit4]   2> 1166706 INFO  
(TEST-OverseerTest.testOverseerFailure-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.OverseerElectionContext I am going to be the leader 127.0.0.1:46635_solr
   [junit4]   2> 1166707 INFO  
(TEST-OverseerTest.testOverseerFailure-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.Overseer Overseer 
(id=99073823429623813-127.0.0.1:46635_solr-n_0000000001) starting
   [junit4]   2> 1166722 INFO  
(OverseerStateUpdate-99073823429623813-127.0.0.1:46635_solr-n_0000000001) [    
] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 1166891 ERROR (Finalizer) [    ] o.a.s.c.CoreContainer 
CoreContainer was not close prior to finalize(), indicates a bug -- POSSIBLE 
RESOURCE LEAK!!!  instance=20085262
   [junit4]   2> 1166891 ERROR (Finalizer) [    ] o.a.s.c.CoreContainer 
CoreContainer was not close prior to finalize(), indicates a bug -- POSSIBLE 
RESOURCE LEAK!!!  instance=30206929
   [junit4]   2> 1167392 INFO  (zkCallback-1495-thread-1) [    ] 
o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (0)
   [junit4]   2> 1167392 INFO  (zkCallback-1502-thread-1) [    ] 
o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (0)
   [junit4]   2> 1167392 INFO  (zkCallback-1493-thread-1) [    ] 
o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (0)
   [junit4]   2> 1167394 ERROR 
(TEST-OverseerTest.testOverseerFailure-seed#[CB084EB02EDC6E6A]) [    ] 
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> 1167394 INFO  
(TEST-OverseerTest.testOverseerFailure-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.ZkTestServer connecting to 127.0.0.1:46635 46635
   [junit4]   2> 1167430 INFO  (Thread-7005) [    ] o.a.s.c.ZkTestServer 
connecting to 127.0.0.1:46635 46635
   [junit4]   2> 1167431 WARN  (Thread-7005) [    ] o.a.s.c.ZkTestServer Watch 
limit violations: 
   [junit4]   2> Maximum concurrent create/delete watches above limit:
   [junit4]   2> 
   [junit4]   2>        4       /solr/aliases.json
   [junit4]   2>        4       /solr/clusterprops.json
   [junit4]   2> 
   [junit4]   2> Maximum concurrent data watches above limit:
   [junit4]   2> 
   [junit4]   2>        4       /solr/clusterstate.json
   [junit4]   2>        2       /solr/autoscaling.json
   [junit4]   2> 
   [junit4]   2> Maximum concurrent children watches above limit:
   [junit4]   2> 
   [junit4]   2>        4       /solr/live_nodes
   [junit4]   2>        4       /solr/collections
   [junit4]   2>        2       /solr/overseer/queue
   [junit4]   2>        2       /solr/autoscaling/events/.auto_add_replicas
   [junit4]   2>        2       /solr/overseer/queue-work
   [junit4]   2>        2       /solr/overseer/collection-queue-work
   [junit4]   2> 
   [junit4]   2> 1167431 INFO  
(TEST-OverseerTest.testOverseerFailure-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.SolrTestCaseJ4 ###Ending testOverseerFailure
   [junit4]   2> 1167431 INFO  
(TEST-OverseerTest.testOverseerFailure-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.Overseer Overseer 
(id=99073823429623813-127.0.0.1:46635_solr-n_0000000001) closing
   [junit4]   2> 1167431 INFO  
(OverseerStateUpdate-99073823429623813-127.0.0.1:46635_solr-n_0000000001) [    
] o.a.s.c.Overseer Overseer Loop exiting : 127.0.0.1:46635_solr
   [junit4]   2> 1167431 WARN  
(OverseerAutoScalingTriggerThread-99073823429623813-127.0.0.1:46635_solr-n_0000000001)
 [    ] o.a.s.c.a.OverseerTriggerThread OverseerTriggerThread woken up but we 
are closed, exiting.
   [junit4]   2> 1167433 ERROR (OverseerExitThread) [    ] o.a.s.c.Overseer 
could not read the data
   [junit4]   2> org.apache.zookeeper.KeeperException$SessionExpiredException: 
KeeperErrorCode = Session expired for /overseer_elect/leader
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:127)
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1212)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.cloud.Overseer$ClusterStateUpdater.checkIfIamStillLeader(Overseer.java:301)
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> 1167434 INFO  
(TEST-OverseerTest.testReplay-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.SolrTestCaseJ4 ###Starting testReplay
   [junit4]   2> 1167434 INFO  
(TEST-OverseerTest.testReplay-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.ZkTestServer STARTING ZK TEST SERVER
   [junit4]   2> 1167435 INFO  (Thread-7006) [    ] o.a.s.c.ZkTestServer client 
port:0.0.0.0/0.0.0.0:0
   [junit4]   2> 1167435 INFO  (Thread-7006) [    ] o.a.s.c.ZkTestServer 
Starting server
   [junit4]   2> 1167436 ERROR (Thread-7006) [    ] 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> 1167535 INFO  
(TEST-OverseerTest.testReplay-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.ZkTestServer start zk server on port:34229
   [junit4]   2> 1167561 INFO  
(TEST-OverseerTest.testReplay-seed#[CB084EB02EDC6E6A]) [    ] o.a.s.c.Overseer 
Overseer (id=null) closing
   [junit4]   2> 1167561 INFO  
(TEST-OverseerTest.testReplay-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.OverseerElectionContext I am going to be the leader 127.0.0.1:34229_solr
   [junit4]   2> 1167561 INFO  
(TEST-OverseerTest.testReplay-seed#[CB084EB02EDC6E6A]) [    ] o.a.s.c.Overseer 
Overseer (id=99073823664701443-127.0.0.1:34229_solr-n_0000000000) starting
   [junit4]   2> 1167765 ERROR 
(TEST-OverseerTest.testReplay-seed#[CB084EB02EDC6E6A]) [    ] 
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> 1167765 INFO  
(TEST-OverseerTest.testReplay-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.ZkTestServer connecting to 127.0.0.1:34229 34229
   [junit4]   2> 1167796 INFO  (Thread-7006) [    ] o.a.s.c.ZkTestServer 
connecting to 127.0.0.1:34229 34229
   [junit4]   2> 1167797 WARN  (Thread-7006) [    ] o.a.s.c.ZkTestServer Watch 
limit violations: 
   [junit4]   2> Maximum concurrent create/delete watches above limit:
   [junit4]   2> 
   [junit4]   2>        2       /solr/aliases.json
   [junit4]   2>        2       /solr/clusterprops.json
   [junit4]   2> 
   [junit4]   2> Maximum concurrent data watches above limit:
   [junit4]   2> 
   [junit4]   2>        2       /solr/clusterstate.json
   [junit4]   2> 
   [junit4]   2> Maximum concurrent children watches above limit:
   [junit4]   2> 
   [junit4]   2>        2       /solr/live_nodes
   [junit4]   2>        2       /solr/collections
   [junit4]   2> 
   [junit4]   2> 1167797 INFO  
(TEST-OverseerTest.testReplay-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.SolrTestCaseJ4 ###Ending testReplay
   [junit4]   2> 1167797 INFO  
(TEST-OverseerTest.testReplay-seed#[CB084EB02EDC6E6A]) [    ] o.a.s.c.Overseer 
Overseer (id=99073823664701443-127.0.0.1:34229_solr-n_0000000000) closing
   [junit4]   2> 1167797 INFO  
(OverseerStateUpdate-99073823664701443-127.0.0.1:34229_solr-n_0000000000) [    
] o.a.s.c.Overseer Overseer Loop exiting : 127.0.0.1:34229_solr
   [junit4]   2> 1167797 WARN  
(OverseerAutoScalingTriggerThread-99073823664701443-127.0.0.1:34229_solr-n_0000000000)
 [    ] o.a.s.c.a.OverseerTriggerThread OverseerTriggerThread woken up but we 
are closed, exiting.
   [junit4]   2> 1167798 ERROR (OverseerExitThread) [    ] o.a.s.c.Overseer 
could not read the data
   [junit4]   2> org.apache.zookeeper.KeeperException$SessionExpiredException: 
KeeperErrorCode = Session expired for /overseer_elect/leader
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:127)
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1212)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.cloud.Overseer$ClusterStateUpdater.checkIfIamStillLeader(Overseer.java:301)
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> 1167800 INFO  
(TEST-OverseerTest.testDoubleAssignment-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.SolrTestCaseJ4 ###Starting testDoubleAssignment
   [junit4]   2> 1167800 INFO  
(TEST-OverseerTest.testDoubleAssignment-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.ZkTestServer STARTING ZK TEST SERVER
   [junit4]   2> 1167800 INFO  (Thread-7007) [    ] o.a.s.c.ZkTestServer client 
port:0.0.0.0/0.0.0.0:0
   [junit4]   2> 1167800 INFO  (Thread-7007) [    ] o.a.s.c.ZkTestServer 
Starting server
   [junit4]   2> 1167801 ERROR (Thread-7007) [    ] 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> 1167900 INFO  
(TEST-OverseerTest.testDoubleAssignment-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.ZkTestServer start zk server on port:44129
   [junit4]   2> 1167928 INFO  (zkCallback-1520-thread-1) [    ] 
o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 1167928 INFO  (zkCallback-1516-thread-1) [    ] 
o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 1167931 INFO  
(TEST-OverseerTest.testDoubleAssignment-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.Overseer Overseer (id=null) closing
   [junit4]   2> 1167931 INFO  
(TEST-OverseerTest.testDoubleAssignment-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.OverseerElectionContext I am going to be the leader 127.0.0.1:44129_solr
   [junit4]   2> 1167932 INFO  
(TEST-OverseerTest.testDoubleAssignment-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.Overseer Overseer 
(id=99073823688622084-127.0.0.1:44129_solr-n_0000000000) starting
   [junit4]   2> 1167935 INFO  
(OverseerStateUpdate-99073823688622084-127.0.0.1:44129_solr-n_0000000000) [    
] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 1168438 INFO  (zkCallback-1522-thread-2) [    ] 
o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (0)
   [junit4]   2> 1168438 INFO  (zkCallback-1516-thread-1) [    ] 
o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (0)
   [junit4]   2> 1169938 WARN  (zkCallback-1520-thread-1) [    ] 
o.a.s.c.c.ZkStateReader ZooKeeper watch triggered, but Solr cannot talk to ZK: 
[KeeperErrorCode = Session expired for /live_nodes]
   [junit4]   2> 1169941 INFO  (zkCallback-1527-thread-1) [    ] 
o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 1169942 INFO  (zkCallback-1516-thread-1) [    ] 
o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 1169942 INFO  (zkCallback-1522-thread-2) [    ] 
o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 1169943 INFO  (zkCallback-1527-thread-1) [    ] 
o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (0)
   [junit4]   2> 1169943 INFO  (zkCallback-1516-thread-1) [    ] 
o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (0)
   [junit4]   2> 1169943 ERROR 
(TEST-OverseerTest.testDoubleAssignment-seed#[CB084EB02EDC6E6A]) [    ] 
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> 1169944 INFO  
(TEST-OverseerTest.testDoubleAssignment-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.ZkTestServer connecting to 127.0.0.1:44129 44129
   [junit4]   2> 1169968 INFO  (Thread-7007) [    ] o.a.s.c.ZkTestServer 
connecting to 127.0.0.1:44129 44129
   [junit4]   2> 1169968 WARN  (Thread-7007) [    ] o.a.s.c.ZkTestServer Watch 
limit violations: 
   [junit4]   2> Maximum concurrent create/delete watches above limit:
   [junit4]   2> 
   [junit4]   2>        4       /solr/aliases.json
   [junit4]   2>        4       /solr/clusterprops.json
   [junit4]   2> 
   [junit4]   2> Maximum concurrent data watches above limit:
   [junit4]   2> 
   [junit4]   2>        4       /solr/clusterstate.json
   [junit4]   2> 
   [junit4]   2> Maximum concurrent children watches above limit:
   [junit4]   2> 
   [junit4]   2>        4       /solr/collections
   [junit4]   2>        3       /solr/live_nodes
   [junit4]   2> 
   [junit4]   2> 1169969 INFO  
(TEST-OverseerTest.testDoubleAssignment-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.SolrTestCaseJ4 ###Ending testDoubleAssignment
   [junit4]   2> 1169969 INFO  
(TEST-OverseerTest.testDoubleAssignment-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.Overseer Overseer 
(id=99073823688622084-127.0.0.1:44129_solr-n_0000000000) closing
   [junit4]   2> 1169969 INFO  
(OverseerStateUpdate-99073823688622084-127.0.0.1:44129_solr-n_0000000000) [    
] o.a.s.c.Overseer Overseer Loop exiting : 127.0.0.1:44129_solr
   [junit4]   2> 1169969 WARN  
(OverseerAutoScalingTriggerThread-99073823688622084-127.0.0.1:44129_solr-n_0000000000)
 [    ] o.a.s.c.a.OverseerTriggerThread OverseerTriggerThread woken up but we 
are closed, exiting.
   [junit4]   2> 1169970 ERROR (OverseerExitThread) [    ] o.a.s.c.Overseer 
could not read the data
   [junit4]   2> org.apache.zookeeper.KeeperException$SessionExpiredException: 
KeeperErrorCode = Session expired for /overseer_elect/leader
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:127)
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1212)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.cloud.Overseer$ClusterStateUpdater.checkIfIamStillLeader(Overseer.java:301)
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> 1169972 INFO  
(TEST-OverseerTest.testBadQueueItem-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.SolrTestCaseJ4 ###Starting testBadQueueItem
   [junit4]   2> 1169972 INFO  
(TEST-OverseerTest.testBadQueueItem-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.ZkTestServer STARTING ZK TEST SERVER
   [junit4]   2> 1169972 INFO  (Thread-7008) [    ] o.a.s.c.ZkTestServer client 
port:0.0.0.0/0.0.0.0:0
   [junit4]   2> 1169972 INFO  (Thread-7008) [    ] o.a.s.c.ZkTestServer 
Starting server
   [junit4]   2> 1169973 ERROR (Thread-7008) [    ] 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> 1170072 INFO  
(TEST-OverseerTest.testBadQueueItem-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.ZkTestServer start zk server on port:40701
   [junit4]   2> 1170101 INFO  
(TEST-OverseerTest.testBadQueueItem-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.Overseer Overseer (id=null) closing
   [junit4]   2> 1170101 INFO  
(TEST-OverseerTest.testBadQueueItem-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.OverseerElectionContext I am going to be the leader 127.0.0.1:40701_solr
   [junit4]   2> 1170101 INFO  
(TEST-OverseerTest.testBadQueueItem-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.Overseer Overseer 
(id=99073823831031811-127.0.0.1:40701_solr-n_0000000000) starting
   [junit4]   2> 1170115 INFO  (zkCallback-1531-thread-1) [    ] 
o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 1170115 INFO  (zkCallback-1538-thread-1) [    ] 
o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 1170116 INFO  (zkCallback-1532-thread-1) [    ] 
o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 1231789 INFO  (zkCallback-1532-thread-3) [    ] 
o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (0)
   [junit4]   2> 1231790 ERROR 
(TEST-OverseerTest.testBadQueueItem-seed#[CB084EB02EDC6E6A]) [    ] 
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> 1231790 INFO  
(TEST-OverseerTest.testBadQueueItem-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.ZkTestServer connecting to 127.0.0.1:40701 40701
   [junit4]   2> 1232119 INFO  
(OverseerCollectionConfigSetProcessor-99073823831031811-127.0.0.1:40701_solr-n_0000000000)
 [    ] o.a.s.c.OverseerTaskProcessor According to ZK I 
(id=99073823831031811-127.0.0.1:40701_solr-n_0000000000) am no longer a leader.
   [junit4]   2> 1232121 WARN  (ScheduledTrigger-4099-thread-2) [    ] 
o.a.s.c.a.TriggerBase Exception updating trigger state 
'/autoscaling/triggerState/.auto_add_replicas'
   [junit4]   2> org.apache.zookeeper.KeeperException$SessionExpiredException: 
KeeperErrorCode = Session expired for 
/autoscaling/triggerState/.auto_add_replicas
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:127)
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:1102)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$exists$3(SolrZkClient.java:308)
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.exists(SolrZkClient.java:308)
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.hasData(ZkDistribStateManager.java:57)
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.TriggerBase.saveState(TriggerBase.java:203)
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.ScheduledTriggers$ScheduledTrigger.run(ScheduledTriggers.java:486)
   [junit4]   2>        at 
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
   [junit4]   2>        at 
java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
   [junit4]   2>        at 
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
   [junit4]   2>        at 
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
   [junit4]   2>        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
   [junit4]   2>        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> 1233122 WARN  (ScheduledTrigger-4099-thread-2) [    ] 
o.a.s.c.a.TriggerBase Exception updating trigger state 
'/autoscaling/triggerState/.auto_add_replicas'
   [junit4]   2> org.apache.zookeeper.KeeperException$SessionExpiredException: 
KeeperErrorCode = Session expired for 
/autoscaling/triggerState/.auto_add_replicas
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:127)
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:1102)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$exists$3(SolrZkClient.java:308)
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.exists(SolrZkClient.java:308)
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.hasData(ZkDistribStateManager.java:57)
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.TriggerBase.saveState(TriggerBase.java:203)
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.ScheduledTriggers$ScheduledTrigger.run(ScheduledTriggers.java:486)
   [junit4]   2>        at 
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
   [junit4]   2>        at 
java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
   [junit4]   2>        at 
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
   [junit4]   2>        at 
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
   [junit4]   2>        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
   [junit4]   2>        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> 1234123 WARN  (ScheduledTrigger-4099-thread-2) [    ] 
o.a.s.c.a.TriggerBase Exception updating trigger state 
'/autoscaling/triggerState/.auto_add_replicas'
   [junit4]   2> org.apache.zookeeper.KeeperException$SessionExpiredException: 
KeeperErrorCode = Session expired for 
/autoscaling/triggerState/.auto_add_replicas
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:127)
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:1102)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$exists$3(SolrZkClient.java:308)
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.exists(SolrZkClient.java:308)
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.hasData(ZkDistribStateManager.java:57)
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.TriggerBase.saveState(TriggerBase.java:203)
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.ScheduledTriggers$ScheduledTrigger.run(ScheduledTriggers.java:486)
   [junit4]   2>        at 
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
   [junit4]   2>        at 
java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
   [junit4]   2>        at 
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
   [junit4]   2>        at 
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
   [junit4]   2>        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
   [junit4]   2>        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> 1235123 WARN  (ScheduledTrigger-4099-thread-2) [    ] 
o.a.s.c.a.TriggerBase Exception updating trigger state 
'/autoscaling/triggerState/.auto_add_replicas'
   [junit4]   2> org.apache.zookeeper.KeeperException$SessionExpiredException: 
KeeperErrorCode = Session expired for 
/autoscaling/triggerState/.auto_add_replicas
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:127)
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:1102)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$exists$3(SolrZkClient.java:308)
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.exists(SolrZkClient.java:308)
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.hasData(ZkDistribStateManager.java:57)
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.TriggerBase.saveState(TriggerBase.java:203)
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.ScheduledTriggers$ScheduledTrigger.run(ScheduledTriggers.java:486)
   [junit4]   2>        at 
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
   [junit4]   2>        at 
java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
   [junit4]   2>        at 
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
   [junit4]   2>        at 
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
   [junit4]   2>        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
   [junit4]   2>        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> 1235677 INFO  (Thread-7008) [    ] o.a.s.c.ZkTestServer 
connecting to 127.0.0.1:40701 40701
   [junit4]   2> 1235678 WARN  (Thread-7008) [    ] o.a.s.c.ZkTestServer Watch 
limit violations: 
   [junit4]   2> Maximum concurrent create/delete watches above limit:
   [junit4]   2> 
   [junit4]   2>        3       /solr/aliases.json
   [junit4]   2>        3       /solr/clusterprops.json
   [junit4]   2> 
   [junit4]   2> Maximum concurrent data watches above limit:
   [junit4]   2> 
   [junit4]   2>        3       /solr/clusterstate.json
   [junit4]   2> 
   [junit4]   2> Maximum concurrent children watches above limit:
   [junit4]   2> 
   [junit4]   2>        3       /solr/live_nodes
   [junit4]   2>        3       /solr/collections
   [junit4]   2> 
   [junit4]   2> 1235678 INFO  
(TEST-OverseerTest.testBadQueueItem-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.SolrTestCaseJ4 ###Ending testBadQueueItem
   [junit4]   2> 1235678 INFO  
(TEST-OverseerTest.testBadQueueItem-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.Overseer Overseer 
(id=99073823831031811-127.0.0.1:40701_solr-n_0000000000) closing
   [junit4]   2> 1235678 WARN  
(OverseerAutoScalingTriggerThread-99073823831031811-127.0.0.1:40701_solr-n_0000000000)
 [    ] o.a.s.c.a.OverseerTriggerThread OverseerTriggerThread woken up but we 
are closed, exiting.
   [junit4]   2> 1235679 INFO  
(OverseerStateUpdate-99073823831031811-127.0.0.1:40701_solr-n_0000000000) [    
] o.a.s.c.Overseer Overseer Loop exiting : 127.0.0.1:40701_solr
   [junit4]   2> 1235682 ERROR (OverseerExitThread) [    ] o.a.s.c.Overseer 
could not read the data
   [junit4]   2> org.apache.zookeeper.KeeperException$SessionExpiredException: 
KeeperErrorCode = Session expired for /overseer_elect/leader
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:127)
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1212)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.cloud.Overseer$ClusterStateUpdater.checkIfIamStillLeader(Overseer.java:301)
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> NOTE: reproduce with: ant test  -Dtestcase=OverseerTest 
-Dtests.method=testBadQueueItem -Dtests.seed=CB084EB02EDC6E6A 
-Dtests.multiplier=3 -Dtests.slow=true -Dtests.locale=de-CH 
-Dtests.timezone=Antarctica/Davis -Dtests.asserts=true 
-Dtests.file.encoding=UTF-8
   [junit4] FAILURE 65.7s J2 | OverseerTest.testBadQueueItem <<<
   [junit4]    > Throwable #1: java.lang.AssertionError: shard got no id?
   [junit4]    >        at 
__randomizedtesting.SeedInfo.seed([CB084EB02EDC6E6A:7BA584FB77A938F2]:0)
   [junit4]    >        at 
org.apache.solr.cloud.OverseerTest.testBadQueueItem(OverseerTest.java:384)
   [junit4]    >        at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> 1235686 INFO  
(TEST-OverseerTest.testShardLeaderChange-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.SolrTestCaseJ4 ###Starting testShardLeaderChange
   [junit4]   2> 1235687 INFO  
(TEST-OverseerTest.testShardLeaderChange-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.ZkTestServer STARTING ZK TEST SERVER
   [junit4]   2> 1235687 INFO  (Thread-7009) [    ] o.a.s.c.ZkTestServer client 
port:0.0.0.0/0.0.0.0:0
   [junit4]   2> 1235687 INFO  (Thread-7009) [    ] o.a.s.c.ZkTestServer 
Starting server
   [junit4]   2> 1235689 ERROR (Thread-7009) [    ] 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> 1235787 INFO  
(TEST-OverseerTest.testShardLeaderChange-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.ZkTestServer start zk server on port:34479
   [junit4]   2> 1235795 WARN  (NIOServerCxn.Factory:0.0.0.0/0.0.0.0:0) [    ] 
o.a.z.s.NIOServerCnxn caught end of stream exception
   [junit4]   2> EndOfStreamException: Unable to read additional data from 
client sessionid 0x15ffb1f2cb00002, likely client has closed socket
   [junit4]   2>        at 
org.apache.zookeeper.server.NIOServerCnxn.doIO(NIOServerCnxn.java:239)
   [junit4]   2>        at 
org.apache.zookeeper.server.NIOServerCnxnFactory.run(NIOServerCnxnFactory.java:203)
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> 1235846 INFO  (Thread-7010) [    ] o.a.s.c.Overseer Overseer 
(id=null) closing
   [junit4]   2> 1235847 INFO  (zkCallback-1547-thread-1) [    ] 
o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 1235847 INFO  (Thread-7010) [    ] 
o.a.s.c.OverseerElectionContext I am going to be the leader 127.0.0.1:34479_solr
   [junit4]   2> 1235847 INFO  (zkCallback-1540-thread-1) [    ] 
o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 1235848 INFO  (Thread-7010) [    ] o.a.s.c.Overseer Overseer 
(id=99073828137730051-127.0.0.1:34479_solr-n_0000000000) starting
   [junit4]   2> 1235854 INFO  (Thread-7010) [    ] o.a.s.c.OverseerTest 
Killing overseer.
   [junit4]   2> 1235854 ERROR 
(OverseerAutoScalingTriggerThread-99073828137730051-127.0.0.1:34479_solr-n_0000000000)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> org.apache.zookeeper.KeeperException$SessionExpiredException: 
KeeperErrorCode = Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:127)
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.setData(ZooKeeper.java:1327)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$setData$6(SolrZkClient.java:344)
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.setData(SolrZkClient.java:344)
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.setData(ZkDistribStateManager.java:123)
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:121)
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> 1235855 ERROR 
(OverseerAutoScalingTriggerThread-99073828137730051-127.0.0.1:34479_solr-n_0000000000)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:160)
   [junit4]   2>        at 
org.apache.solr.client.solrj.cloud.autoscaling.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:62)
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:117)
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> Caused by: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:127)
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1212)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:153)
   [junit4]   2>        ... 3 more
   [junit4]   2> 1235855 ERROR 
(OverseerAutoScalingTriggerThread-99073828137730051-127.0.0.1:34479_solr-n_0000000000)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:160)
   [junit4]   2>        at 
org.apache.solr.client.solrj.cloud.autoscaling.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:62)
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:117)
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> Caused by: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:127)
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1212)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:153)
   [junit4]   2>        ... 3 more
   [junit4]   2> 1235855 ERROR 
(OverseerAutoScalingTriggerThread-99073828137730051-127.0.0.1:34479_solr-n_0000000000)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:160)
   [junit4]   2>        at 
org.apache.solr.client.solrj.cloud.autoscaling.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:62)
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:117)
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> Caused by: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:127)
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1212)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:153)
   [junit4]   2>        ... 3 more
   [junit4]   2> 1235856 ERROR 
(OverseerAutoScalingTriggerThread-99073828137730051-127.0.0.1:34479_solr-n_0000000000)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:160)
   [junit4]   2>        at 
org.apache.solr.client.solrj.cloud.autoscaling.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:62)
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:117)
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> Caused by: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:127)
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1212)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:153)
   [junit4]   2>        ... 3 more
   [junit4]   2> 1235856 ERROR 
(OverseerAutoScalingTriggerThread-99073828137730051-127.0.0.1:34479_solr-n_0000000000)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:160)
   [junit4]   2>        at 
org.apache.solr.client.solrj.cloud.autoscaling.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:62)
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:117)
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> Caused by: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:127)
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1212)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:153)
   [junit4]   2>        ... 3 more
   [junit4]   2> 1235857 ERROR 
(OverseerAutoScalingTriggerThread-99073828137730051-127.0.0.1:34479_solr-n_0000000000)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:160)
   [junit4]   2>        at 
org.apache.solr.client.solrj.cloud.autoscaling.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:62)
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:117)
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> Caused by: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:127)
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1212)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:153)
   [junit4]   2>        ... 3 more
   [junit4]   2> 1235857 ERROR 
(OverseerAutoScalingTriggerThread-99073828137730051-127.0.0.1:34479_solr-n_0000000000)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:160)
   [junit4]   2>        at 
org.apache.solr.client.solrj.cloud.autoscaling.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:62)
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:117)
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> Caused by: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:127)
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1212)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:153)
   [junit4]   2>        ... 3 more
   [junit4]   2> 1235857 ERROR 
(OverseerAutoScalingTriggerThread-99073828137730051-127.0.0.1:34479_solr-n_0000000000)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:160)
   [junit4]   2>        at 
org.apache.solr.client.solrj.cloud.autoscaling.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:62)
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:117)
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> Caused by: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:127)
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1212)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:153)
   [junit4]   2>        ... 3 more
   [junit4]   2> 1235858 ERROR 
(OverseerAutoScalingTriggerThread-99073828137730051-127.0.0.1:34479_solr-n_0000000000)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:160)
   [junit4]   2>        at 
org.apache.solr.client.solrj.cloud.autoscaling.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:62)
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:117)
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> Caused by: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:127)
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1212)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:153)
   [junit4]   2>        ... 3 more
   [junit4]   2> 1235858 ERROR 
(OverseerAutoScalingTriggerThread-99073828137730051-127.0.0.1:34479_solr-n_0000000000)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:160)
   [junit4]   2>        at 
org.apache.solr.client.solrj.cloud.autoscaling.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:62)
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:117)
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> Caused by: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:127)
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1212)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:153)
   [junit4]   2>        ... 3 more
   [junit4]   2> 1235859 ERROR 
(OverseerAutoScalingTriggerThread-99073828137730051-127.0.0.1:34479_solr-n_0000000000)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:160)
   [junit4]   2>        at 
org.apache.solr.client.solrj.cloud.autoscaling.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:62)
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:117)
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> Caused by: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:127)
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1212)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:153)
   [junit4]   2>        ... 3 more
   [junit4]   2> 1235859 ERROR 
(OverseerAutoScalingTriggerThread-99073828137730051-127.0.0.1:34479_solr-n_0000000000)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:160)
   [junit4]   2>        at 
org.apache.solr.client.solrj.cloud.autoscaling.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:62)
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:117)
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> Caused by: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:127)
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1212)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:153)
   [junit4]   2>        ... 3 more
   [junit4]   2> 1235859 INFO  (Thread-7010) [    ] o.a.s.c.Overseer Overseer 
(id=99073828137730051-127.0.0.1:34479_solr-n_0000000000) closing
   [junit4]   2> 1235860 ERROR 
(OverseerAutoScalingTriggerThread-99073828137730051-127.0.0.1:34479_solr-n_0000000000)
 [    ] o.a.s.c.a.OverseerTriggerThread A ZK error has occurred
   [junit4]   2> java.io.IOException: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:160)
   [junit4]   2>        at 
org.apache.solr.client.solrj.cloud.autoscaling.DistribStateManager.getAutoScalingConfig(DistribStateManager.java:62)
   [junit4]   2>        at 
org.apache.solr.cloud.autoscaling.OverseerTriggerThread.run(OverseerTriggerThread.java:117)
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> Caused by: 
org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = 
Session expired for /autoscaling.json
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:127)
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1212)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.client.solrj.impl.ZkDistribStateManager.getAutoScalingConfig(ZkDistribStateManager.java:153)
   [junit4]   2>        ... 3 more
   [junit4]   2> 1235860 INFO  
(OverseerStateUpdate-99073828137730051-127.0.0.1:34479_solr-n_0000000000) [    
] o.a.s.c.Overseer Overseer Loop exiting : 127.0.0.1:34479_solr
   [junit4]   2> 1235863 ERROR (OverseerExitThread) [    ] o.a.s.c.Overseer 
could not read the data
   [junit4]   2> org.apache.zookeeper.KeeperException$SessionExpiredException: 
KeeperErrorCode = Session expired for /overseer_elect/leader
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:127)
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1212)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.cloud.Overseer$ClusterStateUpdater.checkIfIamStillLeader(Overseer.java:301)
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> 1235865 INFO  (Thread-7010) [    ] o.a.s.c.Overseer Overseer 
(id=null) closing
   [junit4]   2> 1235865 INFO  (Thread-7010) [    ] 
o.a.s.c.OverseerElectionContext I am going to be the leader 127.0.0.1:34479_solr
   [junit4]   2> 1235866 INFO  (Thread-7010) [    ] o.a.s.c.Overseer Overseer 
(id=99073828137730053-127.0.0.1:34479_solr-n_0000000001) starting
   [junit4]   2> 1235870 INFO  
(OverseerStateUpdate-99073828137730053-127.0.0.1:34479_solr-n_0000000001) [    
] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 1236361 INFO  
(TEST-OverseerTest.testShardLeaderChange-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 1236362 INFO  (zkCallback-1547-thread-1) [    ] 
o.a.s.c.c.ZkStateR

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

Thread-7014) [    ] o.a.s.c.ZkTestServer Watch limit violations: 
   [junit4]   2> Maximum concurrent create/delete watches above limit:
   [junit4]   2> 
   [junit4]   2>        3       /solr/aliases.json
   [junit4]   2>        3       /solr/clusterprops.json
   [junit4]   2> 
   [junit4]   2> Maximum concurrent data watches above limit:
   [junit4]   2> 
   [junit4]   2>        3       /solr/clusterstate.json
   [junit4]   2> 
   [junit4]   2> Maximum concurrent children watches above limit:
   [junit4]   2> 
   [junit4]   2>        3       /solr/live_nodes
   [junit4]   2>        3       /solr/collections
   [junit4]   2> 
   [junit4]   2> 1283196 INFO  
(TEST-OverseerTest.testShardAssignment-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.SolrTestCaseJ4 ###Ending testShardAssignment
   [junit4]   2> 1283196 INFO  
(TEST-OverseerTest.testShardAssignment-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.Overseer Overseer 
(id=99073830850461699-127.0.0.1:37137_solr-n_0000000000) closing
   [junit4]   2> 1283196 WARN  
(OverseerAutoScalingTriggerThread-99073830850461699-127.0.0.1:37137_solr-n_0000000000)
 [    ] o.a.s.c.a.OverseerTriggerThread OverseerTriggerThread woken up but we 
are closed, exiting.
   [junit4]   2> 1283196 INFO  
(OverseerStateUpdate-99073830850461699-127.0.0.1:37137_solr-n_0000000000) [    
] o.a.s.c.Overseer Overseer Loop exiting : 127.0.0.1:37137_solr
   [junit4]   2> 1283198 ERROR (OverseerExitThread) [    ] o.a.s.c.Overseer 
could not read the data
   [junit4]   2> org.apache.zookeeper.KeeperException$SessionExpiredException: 
KeeperErrorCode = Session expired for /overseer_elect/leader
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:127)
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1212)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.cloud.Overseer$ClusterStateUpdater.checkIfIamStillLeader(Overseer.java:301)
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> 1283200 INFO  
(TEST-OverseerTest.testRemovalOfLastReplica-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.SolrTestCaseJ4 ###Starting testRemovalOfLastReplica
   [junit4]   2> 1283201 INFO  
(TEST-OverseerTest.testRemovalOfLastReplica-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.ZkTestServer STARTING ZK TEST SERVER
   [junit4]   2> 1283202 INFO  (Thread-7015) [    ] o.a.s.c.ZkTestServer client 
port:0.0.0.0/0.0.0.0:0
   [junit4]   2> 1283202 INFO  (Thread-7015) [    ] o.a.s.c.ZkTestServer 
Starting server
   [junit4]   2> 1283204 ERROR (Thread-7015) [    ] 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> 1283302 INFO  
(TEST-OverseerTest.testRemovalOfLastReplica-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.ZkTestServer start zk server on port:45805
   [junit4]   2> 1283327 INFO  
(TEST-OverseerTest.testRemovalOfLastReplica-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.Overseer Overseer (id=null) closing
   [junit4]   2> 1283327 INFO  
(TEST-OverseerTest.testRemovalOfLastReplica-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.OverseerElectionContext I am going to be the leader 127.0.0.1:45805_solr
   [junit4]   2> 1283327 INFO  
(TEST-OverseerTest.testRemovalOfLastReplica-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.Overseer Overseer 
(id=99073831251673091-127.0.0.1:45805_solr-n_0000000000) starting
   [junit4]   2> 1283837 ERROR 
(TEST-OverseerTest.testRemovalOfLastReplica-seed#[CB084EB02EDC6E6A]) [    ] 
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> 1283838 INFO  
(TEST-OverseerTest.testRemovalOfLastReplica-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.ZkTestServer connecting to 127.0.0.1:45805 45805
   [junit4]   2> 1283851 INFO  (Thread-7015) [    ] o.a.s.c.ZkTestServer 
connecting to 127.0.0.1:45805 45805
   [junit4]   2> 1283851 WARN  (Thread-7015) [    ] o.a.s.c.ZkTestServer Watch 
limit violations: 
   [junit4]   2> Maximum concurrent create/delete watches above limit:
   [junit4]   2> 
   [junit4]   2>        2       /solr/aliases.json
   [junit4]   2>        2       /solr/clusterprops.json
   [junit4]   2> 
   [junit4]   2> Maximum concurrent data watches above limit:
   [junit4]   2> 
   [junit4]   2>        2       /solr/clusterstate.json
   [junit4]   2> 
   [junit4]   2> Maximum concurrent children watches above limit:
   [junit4]   2> 
   [junit4]   2>        2       /solr/live_nodes
   [junit4]   2>        2       /solr/collections
   [junit4]   2> 
   [junit4]   2> 1283851 INFO  
(TEST-OverseerTest.testRemovalOfLastReplica-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.SolrTestCaseJ4 ###Ending testRemovalOfLastReplica
   [junit4]   2> 1283851 INFO  
(TEST-OverseerTest.testRemovalOfLastReplica-seed#[CB084EB02EDC6E6A]) [    ] 
o.a.s.c.Overseer Overseer 
(id=99073831251673091-127.0.0.1:45805_solr-n_0000000000) closing
   [junit4]   2> 1283851 INFO  
(OverseerStateUpdate-99073831251673091-127.0.0.1:45805_solr-n_0000000000) [    
] o.a.s.c.Overseer Overseer Loop exiting : 127.0.0.1:45805_solr
   [junit4]   2> 1283852 WARN  
(OverseerAutoScalingTriggerThread-99073831251673091-127.0.0.1:45805_solr-n_0000000000)
 [    ] o.a.s.c.a.OverseerTriggerThread OverseerTriggerThread woken up but we 
are closed, exiting.
   [junit4]   2> 1283855 ERROR (OverseerExitThread) [    ] o.a.s.c.Overseer 
could not read the data
   [junit4]   2> org.apache.zookeeper.KeeperException$SessionExpiredException: 
KeeperErrorCode = Session expired for /overseer_elect/leader
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:127)
   [junit4]   2>        at 
org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
   [junit4]   2>        at 
org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1212)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:60)
   [junit4]   2>        at 
org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:332)
   [junit4]   2>        at 
org.apache.solr.cloud.Overseer$ClusterStateUpdater.checkIfIamStillLeader(Overseer.java:301)
   [junit4]   2>        at java.lang.Thread.run(Thread.java:748)
   [junit4]   2> NOTE: leaving temporary files on disk at: 
/home/jenkins/workspace/Lucene-Solr-7.x-Linux/solr/build/solr-core/test/J2/temp/solr.cloud.OverseerTest_CB084EB02EDC6E6A-001
   [junit4]   2> NOTE: test params are: codec=Asserting(Lucene70): {}, 
docValues:{}, maxPointsInLeafNode=1981, maxMBSortInHeap=5.954119909986178, 
sim=RandomSimilarity(queryNorm=false): {}, locale=de-CH, 
timezone=Antarctica/Davis
   [junit4]   2> NOTE: Linux 4.10.0-37-generic i386/Oracle Corporation 
1.8.0_144 (32-bit)/cpus=8,threads=1,free=159254720,total=359272448
   [junit4]   2> NOTE: All tests run in this JVM: [BitVectorTest, 
TestHdfsUpdateLog, SimplePostToolTest, TestUninvertingReader, 
ZkStateWriterTest, TestLFUCache, CdcrUpdateLogTest, 
TestClassicSimilarityFactory, SolrCoreMetricManagerTest, 
TestMinMaxOnMultiValuedField, TestSegmentSorting, IndexBasedSpellCheckerTest, 
TestJsonRequest, AsyncCallRequestStatusResponseTest, SolrIndexMetricsTest, 
TestMiniSolrCloudClusterSSL, AtomicUpdateProcessorFactoryTest, 
ClusterStateTest, TestUniqueKeyFieldResource, TestFieldCacheSortRandom, 
ChangedSchemaMergeTest, TestManagedResourceStorage, RecoveryZkTest, 
TestDistribDocBasedVersion, DirectoryFactoryTest, TestMultiWordSynonyms, 
TestCharFilters, TestRequestForwarding, SecurityConfHandlerTest, 
TestRandomRequestDistribution, SolrJmxReporterCloudTest, BadComponentTest, 
TestRandomCollapseQParserPlugin, V2ApiIntegrationTest, TestLegacyNumericUtils, 
TestFileDictionaryLookup, TestSchemaSimilarityResource, HdfsDirectoryTest, 
NodeAddedTriggerTest, TestNRTOpen, TestHttpShardHandlerFactory, 
JavabinLoaderTest, IndexSchemaTest, UUIDFieldTest, CoreAdminHandlerTest, 
QueryElevationComponentTest, HdfsNNFailoverTest, TestRealTimeGet, 
TestManagedSchemaAPI, TestFieldCache, TestHdfsCloudBackupRestore, 
ClassificationUpdateProcessorIntegrationTest, TestGraphTermsQParserPlugin, 
SystemInfoHandlerTest, TestHdfsBackupRestoreCore, TestExtendedDismaxParser, 
HttpSolrCallGetCoreTest, TestCSVResponseWriter, SubstringBytesRefFilterTest, 
TestStressUserVersions, TestPullReplica, TestApiFramework, 
AlternateDirectoryTest, DocValuesNotIndexedTest, DirectSolrConnectionTest, 
TestLMJelinekMercerSimilarityFactory, TestCopyFieldCollectionResource, 
TestRecoveryHdfs, ReplicationFactorTest, TestSearchPerf, QueryResultKeyTest, 
StressHdfsTest, TestCoreAdminApis, TestCollapseQParserPlugin, 
TestRuleBasedAuthorizationPlugin, DirectSolrSpellCheckerTest, 
SolrMetricsIntegrationTest, ChaosMonkeyNothingIsSafeTest, 
TestCorePropertiesReload, TestNamedUpdateProcessors, UnloadDistributedZkTest, 
FileBasedSpellCheckerTest, DistribJoinFromCollectionTest, 
SystemLogListenerTest, TestGroupingSearch, HighlighterTest, CopyFieldTest, 
TestFunctionQuery, DistributedFacetExistsSmallTest, CollectionReloadTest, 
TestCustomDocTransformer, StatsComponentTest, NodeMutatorTest, 
TestHashPartitioner, TestStreamBody, DocValuesMissingTest, RulesTest, 
TestRawResponseWriter, TestNestedDocsSort, TestSimpleTextCodec, 
TestEmbeddedSolrServerConstructors, RecoveryAfterSoftCommitTest, 
FullSolrCloudDistribCmdsTest, TestFiltering, RankQueryTest, 
AliasIntegrationTest, XmlUpdateRequestHandlerTest, TestSolrCloudSnapshots, 
XsltUpdateRequestHandlerTest, TestSolrCLIRunExample, 
FieldMutatingUpdateProcessorTest, TestZkChroot, TestSolrDeletionPolicy2, 
PKIAuthenticationIntegrationTest, OverseerTest]
   [junit4] Completed [359/749 (1!)] on J2 in 126.18s, 13 tests, 1 failure, 1 
skipped <<< FAILURES!

[...truncated 44530 lines...]
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