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From Apache Jenkins Server <jenk...@builds.apache.org>
Subject [JENKINS] Lucene-Solr-Tests-master - Build # 3363 - Unstable
Date Sun, 09 Jun 2019 09:03:10 GMT
Build: https://builds.apache.org/job/Lucene-Solr-Tests-master/3363/

2 tests failed.
FAILED:  org.apache.solr.cloud.OverseerTest.testOverseerFailure

Error Message:
Test abandoned because suite timeout was reached.

Stack Trace:
java.lang.Exception: Test abandoned because suite timeout was reached.
	at __randomizedtesting.SeedInfo.seed([9783BF4946FEF4B1]:0)


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

Error Message:
Suite timeout exceeded (>= 7200000 msec).

Stack Trace:
java.lang.Exception: Suite timeout exceeded (>= 7200000 msec).
	at __randomizedtesting.SeedInfo.seed([9783BF4946FEF4B1]:0)




Build Log:
[...truncated 15593 lines...]
   [junit4] Suite: org.apache.solr.cloud.OverseerTest
   [junit4]   2> 3176179 INFO  (SUITE-OverseerTest-seed#[9783BF4946FEF4B1]-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/jenkins-slave/workspace/Lucene-Solr-Tests-master/solr/build/solr-core/test/J2/temp/solr.cloud.OverseerTest_9783BF4946FEF4B1-001/init-core-data-001
   [junit4]   2> 3176187 WARN  (SUITE-OverseerTest-seed#[9783BF4946FEF4B1]-worker) [     ] o.a.s.SolrTestCaseJ4 startTrackingSearchers: numOpens=6 numCloses=6
   [junit4]   2> 3176187 INFO  (SUITE-OverseerTest-seed#[9783BF4946FEF4B1]-worker) [     ] o.a.s.SolrTestCaseJ4 Using TrieFields (NUMERIC_POINTS_SYSPROP=false) w/NUMERIC_DOCVALUES_SYSPROP=true
   [junit4]   2> 3176188 INFO  (SUITE-OverseerTest-seed#[9783BF4946FEF4B1]-worker) [     ] o.a.s.SolrTestCaseJ4 Randomized ssl (false) and clientAuth (true) via: @org.apache.solr.util.RandomizeSSL(reason="", ssl=0.0/0.0, value=0.0/0.0, clientAuth=0.0/0.0)
   [junit4]   2> 3176189 INFO  (SUITE-OverseerTest-seed#[9783BF4946FEF4B1]-worker) [     ] o.a.s.c.ZkTestServer STARTING ZK TEST SERVER
   [junit4]   2> 3176189 INFO  (ZkTestServer Run Thread) [     ] o.a.s.c.ZkTestServer client port:0.0.0.0/0.0.0.0:0
   [junit4]   2> 3176189 INFO  (ZkTestServer Run Thread) [     ] o.a.s.c.ZkTestServer Starting server
   [junit4]   2> 3176289 INFO  (SUITE-OverseerTest-seed#[9783BF4946FEF4B1]-worker) [     ] o.a.s.c.ZkTestServer start zk server on port:44530
   [junit4]   2> 3176289 INFO  (SUITE-OverseerTest-seed#[9783BF4946FEF4B1]-worker) [     ] o.a.s.c.ZkTestServer parse host and port list: 127.0.0.1:44530
   [junit4]   2> 3176289 INFO  (SUITE-OverseerTest-seed#[9783BF4946FEF4B1]-worker) [     ] o.a.s.c.ZkTestServer connecting to 127.0.0.1 44530
   [junit4]   2> 3176291 INFO  (SUITE-OverseerTest-seed#[9783BF4946FEF4B1]-worker) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 3176292 INFO  (zkConnectionManagerCallback-8371-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3176292 INFO  (SUITE-OverseerTest-seed#[9783BF4946FEF4B1]-worker) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 3176304 INFO  (SUITE-OverseerTest-seed#[9783BF4946FEF4B1]-worker) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 3176325 INFO  (zkConnectionManagerCallback-8373-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3176325 INFO  (SUITE-OverseerTest-seed#[9783BF4946FEF4B1]-worker) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 3176325 INFO  (SUITE-OverseerTest-seed#[9783BF4946FEF4B1]-worker) [     ] o.a.s.SolrTestCaseJ4 ####initCore
   [junit4]   2> 3176325 INFO  (SUITE-OverseerTest-seed#[9783BF4946FEF4B1]-worker) [     ] o.a.s.SolrTestCaseJ4 ####initCore end
   [junit4]   2> 3176392 INFO  (TEST-OverseerTest.testReplay-seed#[9783BF4946FEF4B1]) [     ] o.a.s.SolrTestCaseJ4 ###Starting testReplay
   [junit4]   2> 3176669 INFO  (TEST-OverseerTest.testReplay-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 3176669 INFO  (zkConnectionManagerCallback-8377-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3176669 INFO  (TEST-OverseerTest.testReplay-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 3176672 WARN  (TEST-OverseerTest.testReplay-seed#[9783BF4946FEF4B1]) [     ] o.e.j.u.s.S.config No Client EndPointIdentificationAlgorithm configured for SslContextFactory@65341463[provider=null,keyStore=null,trustStore=null]
   [junit4]   2> 3176686 INFO  (TEST-OverseerTest.testReplay-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 3176698 INFO  (zkConnectionManagerCallback-8384-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3176698 INFO  (TEST-OverseerTest.testReplay-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 3176730 INFO  (TEST-OverseerTest.testReplay-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 3176730 INFO  (zkConnectionManagerCallback-8389-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3176730 INFO  (TEST-OverseerTest.testReplay-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 3176743 INFO  (TEST-OverseerTest.testReplay-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.s.i.ZkClientClusterStateProvider Cluster at 127.0.0.1:44530/solr ready
   [junit4]   2> 3176745 INFO  (TEST-OverseerTest.testReplay-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.OverseerElectionContext I am going to be the leader 127.0.0.1:44530_solr
   [junit4]   2> 3176746 INFO  (TEST-OverseerTest.testReplay-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.Overseer Overseer (id=74836163683876866-127.0.0.1:44530_solr-n_0000000000) starting
   [junit4]   2> 3176803 INFO  (OverseerStateUpdate-74836163683876866-127.0.0.1:44530_solr-n_0000000000) [     ] o.a.s.c.Overseer Starting to work on the main queue : 127.0.0.1:44530_solr
   [junit4]   2> 3176807 WARN  (TEST-OverseerTest.testReplay-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.Overseer Unable to check back-compat of .system collection - can't obtain ClusterState.
   [junit4]   2> 3177327 INFO  (closeThreadPool-8391-thread-1) [     ] o.a.s.c.Overseer Overseer (id=74836163683876866-127.0.0.1:44530_solr-n_0000000000) closing
   [junit4]   2> 3177328 INFO  (OverseerAutoScalingTriggerThread-74836163683876866-127.0.0.1:44530_solr-n_0000000000) [     ] o.a.s.c.a.OverseerTriggerThread OverseerTriggerThread woken up but we are closed, exiting.
   [junit4]   2> 3177328 INFO  (OverseerStateUpdate-74836163683876866-127.0.0.1:44530_solr-n_0000000000) [     ] o.a.s.c.Overseer Overseer Loop exiting : 127.0.0.1:44530_solr
   [junit4]   2> 3177330 WARN  (OverseerExitThread) [     ] o.a.s.c.Overseer Error communicating with ZooKeeper
   [junit4]   2>           => org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /overseer_elect/leader
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:134)
   [junit4]   2> org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /overseer_elect/leader
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:134) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:2131) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:337) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:71) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:337) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.cloud.Overseer$ClusterStateUpdater.checkIfIamStillLeader(Overseer.java:331) ~[java/:?]
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:834) [?:?]
   [junit4]   2> 3177437 INFO  (TEST-OverseerTest.testReplay-seed#[9783BF4946FEF4B1]) [     ] o.a.s.SolrTestCaseJ4 ###Ending testReplay
   [junit4]   2> 3177463 INFO  (TEST-OverseerTest.testDownNodeFailover-seed#[9783BF4946FEF4B1]) [     ] o.a.s.SolrTestCaseJ4 ###Starting testDownNodeFailover
   [junit4]   2> 3177626 INFO  (TEST-OverseerTest.testDownNodeFailover-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 3177627 INFO  (zkConnectionManagerCallback-8393-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3177627 INFO  (TEST-OverseerTest.testDownNodeFailover-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 3177642 WARN  (TEST-OverseerTest.testDownNodeFailover-seed#[9783BF4946FEF4B1]) [     ] o.e.j.u.s.S.config No Client EndPointIdentificationAlgorithm configured for SslContextFactory@4982770d[provider=null,keyStore=null,trustStore=null]
   [junit4]   2> 3177643 INFO  (TEST-OverseerTest.testDownNodeFailover-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 3177644 INFO  (zkConnectionManagerCallback-8400-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3177644 INFO  (TEST-OverseerTest.testDownNodeFailover-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 3177659 INFO  (TEST-OverseerTest.testDownNodeFailover-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 3177659 INFO  (zkConnectionManagerCallback-8405-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3177659 INFO  (TEST-OverseerTest.testDownNodeFailover-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 3177670 INFO  (TEST-OverseerTest.testDownNodeFailover-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.s.i.ZkClientClusterStateProvider Cluster at 127.0.0.1:44530/solr ready
   [junit4]   2> 3177672 INFO  (TEST-OverseerTest.testDownNodeFailover-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.OverseerElectionContext I am going to be the leader 127.0.0.1:44530_solr
   [junit4]   2> 3177672 INFO  (TEST-OverseerTest.testDownNodeFailover-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.Overseer Overseer (id=74836163683876869-127.0.0.1:44530_solr-n_0000000000) starting
   [junit4]   2> 3177703 WARN  (TEST-OverseerTest.testDownNodeFailover-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.Overseer Unable to check back-compat of .system collection - can't obtain ClusterState.
   [junit4]   2> 3177726 INFO  (OverseerStateUpdate-74836163683876869-127.0.0.1:44530_solr-n_0000000000) [     ] o.a.s.c.Overseer Starting to work on the main queue : 127.0.0.1:44530_solr
   [junit4]   2> 3177742 INFO  (TEST-OverseerTest.testDownNodeFailover-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 3177743 INFO  (zkConnectionManagerCallback-8409-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3177743 INFO  (TEST-OverseerTest.testDownNodeFailover-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 3177796 INFO  (zkCallback-8372-thread-2) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 3177799 INFO  (zkCallback-8392-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 3177807 INFO  (zkCallback-8408-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 3177807 INFO  (zkCallback-8404-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 3177808 INFO  (TEST-OverseerTest.testDownNodeFailover-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 3177816 INFO  (zkConnectionManagerCallback-8416-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3177816 INFO  (TEST-OverseerTest.testDownNodeFailover-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 3177817 INFO  (TEST-OverseerTest.testDownNodeFailover-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 3177818 INFO  (TEST-OverseerTest.testDownNodeFailover-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.s.i.ZkClientClusterStateProvider Cluster at 127.0.0.1:44530/solr ready
   [junit4]   2> 3177976 INFO  (TEST-OverseerTest.testDownNodeFailover-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.ShardLeaderElectionContextBase make sure parent is created /collections/collection0/leaders/shard1
   [junit4]   2> 3177979 INFO  (TEST-OverseerTest.testDownNodeFailover-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.ShardLeaderElectionContextBase Creating leader registration node /collections/collection0/leaders/shard1/leader after winning as /collections/collection0/leader_elect/shard1/election/74836163683876872-127.0.0.1_core1-n_0000000000
   [junit4]   2> 3178144 INFO  (TEST-OverseerTest.testDownNodeFailover-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.ShardLeaderElectionContextBase make sure parent is created /collections/collection1/leaders/shard1
   [junit4]   2> 3178146 INFO  (TEST-OverseerTest.testDownNodeFailover-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.ShardLeaderElectionContextBase Creating leader registration node /collections/collection1/leaders/shard1/leader after winning as /collections/collection1/leader_elect/shard1/election/74836163683876872-127.0.0.1_core1-n_0000000000
   [junit4]   2> 3178265 INFO  (TEST-OverseerTest.testDownNodeFailover-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.ShardLeaderElectionContextBase make sure parent is created /collections/collection2/leaders/shard1
   [junit4]   2> 3178267 INFO  (TEST-OverseerTest.testDownNodeFailover-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.ShardLeaderElectionContextBase Creating leader registration node /collections/collection2/leaders/shard1/leader after winning as /collections/collection2/leader_elect/shard1/election/74836163683876872-127.0.0.1_core1-n_0000000000
   [junit4]   2> 3178395 INFO  (TEST-OverseerTest.testDownNodeFailover-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.ShardLeaderElectionContextBase make sure parent is created /collections/collection3/leaders/shard1
   [junit4]   2> 3178404 INFO  (TEST-OverseerTest.testDownNodeFailover-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.ShardLeaderElectionContextBase Creating leader registration node /collections/collection3/leaders/shard1/leader after winning as /collections/collection3/leader_elect/shard1/election/74836163683876872-127.0.0.1_core1-n_0000000000
   [junit4]   2> 3178563 INFO  (TEST-OverseerTest.testDownNodeFailover-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.ShardLeaderElectionContextBase make sure parent is created /collections/collection4/leaders/shard1
   [junit4]   2> 3178564 INFO  (TEST-OverseerTest.testDownNodeFailover-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.ShardLeaderElectionContextBase Creating leader registration node /collections/collection4/leaders/shard1/leader after winning as /collections/collection4/leader_elect/shard1/election/74836163683876872-127.0.0.1_core1-n_0000000000
   [junit4]   2> 3178861 INFO  (TEST-OverseerTest.testDownNodeFailover-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 3178869 INFO  (zkConnectionManagerCallback-8418-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3178870 INFO  (TEST-OverseerTest.testDownNodeFailover-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 3178870 INFO  (TEST-OverseerTest.testDownNodeFailover-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.Overseer Overseer (id=74836163683876869-127.0.0.1:44530_solr-n_0000000000) closing
   [junit4]   2> 3178870 INFO  (OverseerStateUpdate-74836163683876869-127.0.0.1:44530_solr-n_0000000000) [     ] o.a.s.c.Overseer Overseer Loop exiting : 127.0.0.1:44530_solr
   [junit4]   2> 3178870 INFO  (OverseerAutoScalingTriggerThread-74836163683876869-127.0.0.1:44530_solr-n_0000000000) [     ] o.a.s.c.a.OverseerTriggerThread OverseerTriggerThread woken up but we are closed, exiting.
   [junit4]   2> 3178889 WARN  (OverseerExitThread) [     ] o.a.s.c.Overseer Error communicating with ZooKeeper
   [junit4]   2>           => org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /overseer_elect/leader
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:134)
   [junit4]   2> org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /overseer_elect/leader
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:134) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:2131) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:337) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:71) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:337) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.cloud.Overseer$ClusterStateUpdater.checkIfIamStillLeader(Overseer.java:331) ~[java/:?]
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:834) [?:?]
   [junit4]   2> 3178890 WARN  (TEST-OverseerTest.testDownNodeFailover-seed#[9783BF4946FEF4B1]) [     ] o.e.j.u.s.S.config No Client EndPointIdentificationAlgorithm configured for SslContextFactory@6db95e51[provider=null,keyStore=null,trustStore=null]
   [junit4]   2> 3178891 INFO  (TEST-OverseerTest.testDownNodeFailover-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 3178892 INFO  (zkConnectionManagerCallback-8425-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3178892 INFO  (TEST-OverseerTest.testDownNodeFailover-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 3178902 INFO  (TEST-OverseerTest.testDownNodeFailover-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 3178903 INFO  (zkConnectionManagerCallback-8430-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3178903 INFO  (TEST-OverseerTest.testDownNodeFailover-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 3178904 INFO  (TEST-OverseerTest.testDownNodeFailover-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 3178921 INFO  (TEST-OverseerTest.testDownNodeFailover-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.s.i.ZkClientClusterStateProvider Cluster at 127.0.0.1:44530/solr ready
   [junit4]   2> 3178923 INFO  (TEST-OverseerTest.testDownNodeFailover-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.OverseerElectionContext I am going to be the leader 127.0.0.1:44530_solr
   [junit4]   2> 3178924 INFO  (TEST-OverseerTest.testDownNodeFailover-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.Overseer Overseer (id=74836163683876874-127.0.0.1:44530_solr-n_0000000001) starting
   [junit4]   2> 3178942 WARN  (TEST-OverseerTest.testDownNodeFailover-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.Overseer Unable to check back-compat of .system collection - can't obtain ClusterState.
   [junit4]   2> 3178950 INFO  (OverseerStateUpdate-74836163683876874-127.0.0.1:44530_solr-n_0000000001) [     ] o.a.s.c.Overseer Starting to work on the main queue : 127.0.0.1:44530_solr
   [junit4]   2> 3178952 INFO  (OverseerStateUpdate-74836163683876874-127.0.0.1:44530_solr-n_0000000001) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 3178967 INFO  (zkCallback-8415-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (0)
   [junit4]   2> 3178967 INFO  (zkCallback-8408-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (0)
   [junit4]   2> 3179069 INFO  (zkCallback-8417-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (0)
   [junit4]   2> 3179079 INFO  (zkCallback-8372-thread-2) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (0)
   [junit4]   2> 3179080 INFO  (zkCallback-8429-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (0)
   [junit4]   2> 3179080 INFO  (zkCallback-8404-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (0)
   [junit4]   2> 3179586 INFO  (closeThreadPool-8432-thread-1) [     ] o.a.s.c.Overseer Overseer (id=74836163683876869-127.0.0.1:44530_solr-n_0000000000) closing
   [junit4]   2> 3179586 INFO  (closeThreadPool-8432-thread-2) [     ] o.a.s.c.Overseer Overseer (id=74836163683876874-127.0.0.1:44530_solr-n_0000000001) closing
   [junit4]   2> 3179586 INFO  (OverseerStateUpdate-74836163683876874-127.0.0.1:44530_solr-n_0000000001) [     ] o.a.s.c.Overseer Overseer Loop exiting : 127.0.0.1:44530_solr
   [junit4]   2> 3179586 INFO  (OverseerAutoScalingTriggerThread-74836163683876874-127.0.0.1:44530_solr-n_0000000001) [     ] o.a.s.c.a.OverseerTriggerThread OverseerTriggerThread woken up but we are closed, exiting.
   [junit4]   2> 3179591 WARN  (OverseerExitThread) [     ] o.a.s.c.Overseer Error communicating with ZooKeeper
   [junit4]   2>           => org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /overseer_elect/leader
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:134)
   [junit4]   2> org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /overseer_elect/leader
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:134) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:2131) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:337) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:71) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:337) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.cloud.Overseer$ClusterStateUpdater.checkIfIamStillLeader(Overseer.java:331) ~[java/:?]
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:834) [?:?]
   [junit4]   2> 3179767 INFO  (TEST-OverseerTest.testDownNodeFailover-seed#[9783BF4946FEF4B1]) [     ] o.a.s.SolrTestCaseJ4 ###Ending testDownNodeFailover
   [junit4]   2> 3179782 INFO  (TEST-OverseerTest.testLatchWatcher-seed#[9783BF4946FEF4B1]) [     ] o.a.s.SolrTestCaseJ4 ###Starting testLatchWatcher
   [junit4]   2> 3179891 INFO  (TEST-OverseerTest.testLatchWatcher-seed#[9783BF4946FEF4B1]) [     ] o.a.s.SolrTestCaseJ4 ###Ending testLatchWatcher
   [junit4]   2> 3179935 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[9783BF4946FEF4B1]) [     ] o.a.s.SolrTestCaseJ4 ###Starting testRemovalOfLastReplica
   [junit4]   2> 3180260 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 3180261 INFO  (zkConnectionManagerCallback-8438-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3180261 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 3180263 WARN  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[9783BF4946FEF4B1]) [     ] o.e.j.u.s.S.config No Client EndPointIdentificationAlgorithm configured for SslContextFactory@711a47d0[provider=null,keyStore=null,trustStore=null]
   [junit4]   2> 3180265 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 3180265 INFO  (zkConnectionManagerCallback-8445-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3180265 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 3180281 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 3180286 INFO  (zkConnectionManagerCallback-8450-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3180286 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 3180288 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.s.i.ZkClientClusterStateProvider Cluster at 127.0.0.1:44530/solr ready
   [junit4]   2> 3180306 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.OverseerElectionContext I am going to be the leader 127.0.0.1:44530_solr
   [junit4]   2> 3180306 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.Overseer Overseer (id=74836163683876877-127.0.0.1:44530_solr-n_0000000000) starting
   [junit4]   2> 3180339 WARN  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.Overseer Unable to check back-compat of .system collection - can't obtain ClusterState.
   [junit4]   2> 3180342 INFO  (OverseerStateUpdate-74836163683876877-127.0.0.1:44530_solr-n_0000000000) [     ] o.a.s.c.Overseer Starting to work on the main queue : 127.0.0.1:44530_solr
   [junit4]   2> 3181247 INFO  (closeThreadPool-8452-thread-1) [     ] o.a.s.c.Overseer Overseer (id=74836163683876877-127.0.0.1:44530_solr-n_0000000000) closing
   [junit4]   2> 3181247 INFO  (OverseerStateUpdate-74836163683876877-127.0.0.1:44530_solr-n_0000000000) [     ] o.a.s.c.Overseer Overseer Loop exiting : 127.0.0.1:44530_solr
   [junit4]   2> 3181248 INFO  (OverseerAutoScalingTriggerThread-74836163683876877-127.0.0.1:44530_solr-n_0000000000) [     ] o.a.s.c.a.OverseerTriggerThread OverseerTriggerThread woken up but we are closed, exiting.
   [junit4]   2> 3181267 WARN  (OverseerExitThread) [     ] o.a.s.c.Overseer Error communicating with ZooKeeper
   [junit4]   2>           => org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /overseer_elect/leader
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:134)
   [junit4]   2> org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /overseer_elect/leader
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:134) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:2131) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:337) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:71) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:337) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.cloud.Overseer$ClusterStateUpdater.checkIfIamStillLeader(Overseer.java:331) ~[java/:?]
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:834) [?:?]
   [junit4]   2> 3181374 INFO  (TEST-OverseerTest.testRemovalOfLastReplica-seed#[9783BF4946FEF4B1]) [     ] o.a.s.SolrTestCaseJ4 ###Ending testRemovalOfLastReplica
   [junit4]   2> 3181401 INFO  (TEST-OverseerTest.testExceptionWhenFlushClusterState-seed#[9783BF4946FEF4B1]) [     ] o.a.s.SolrTestCaseJ4 ###Starting testExceptionWhenFlushClusterState
   [junit4]   2> 3181577 INFO  (TEST-OverseerTest.testExceptionWhenFlushClusterState-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 3181578 INFO  (zkConnectionManagerCallback-8456-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3181578 INFO  (TEST-OverseerTest.testExceptionWhenFlushClusterState-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 3181588 WARN  (TEST-OverseerTest.testExceptionWhenFlushClusterState-seed#[9783BF4946FEF4B1]) [     ] o.e.j.u.s.S.config No Client EndPointIdentificationAlgorithm configured for SslContextFactory@32c13232[provider=null,keyStore=null,trustStore=null]
   [junit4]   2> 3181589 INFO  (TEST-OverseerTest.testExceptionWhenFlushClusterState-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 3181590 INFO  (zkConnectionManagerCallback-8463-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3181590 INFO  (TEST-OverseerTest.testExceptionWhenFlushClusterState-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 3181607 INFO  (TEST-OverseerTest.testExceptionWhenFlushClusterState-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 3181608 INFO  (zkConnectionManagerCallback-8468-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3181608 INFO  (TEST-OverseerTest.testExceptionWhenFlushClusterState-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 3181610 INFO  (TEST-OverseerTest.testExceptionWhenFlushClusterState-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.s.i.ZkClientClusterStateProvider Cluster at 127.0.0.1:44530/solr ready
   [junit4]   2> 3181633 INFO  (TEST-OverseerTest.testExceptionWhenFlushClusterState-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.OverseerElectionContext I am going to be the leader 127.0.0.1:44530_solr
   [junit4]   2> 3181634 INFO  (TEST-OverseerTest.testExceptionWhenFlushClusterState-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.Overseer Overseer (id=74836163683876880-127.0.0.1:44530_solr-n_0000000000) starting
   [junit4]   2> 3181676 WARN  (TEST-OverseerTest.testExceptionWhenFlushClusterState-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.Overseer Unable to check back-compat of .system collection - can't obtain ClusterState.
   [junit4]   2> 3181697 INFO  (OverseerStateUpdate-74836163683876880-127.0.0.1:44530_solr-n_0000000000) [     ] o.a.s.c.Overseer Starting to work on the main queue : 127.0.0.1:44530_solr
   [junit4]   2> 3181769 WARN  (OverseerStateUpdate-74836163683876880-127.0.0.1:44530_solr-n_0000000000) [     ] o.a.s.c.Overseer Exception when process message = {
   [junit4]   2>   "operation":"create",
   [junit4]   2>   "name":"collection1",
   [junit4]   2>   "replicationFactor":"1",
   [junit4]   2>   "numShards":"1",
   [junit4]   2>   "stateFormat":"2",
   [junit4]   2>   "createNodeSet":""}, consider as bad message and poll out from the queue
   [junit4]   2> 3181794 ERROR (OverseerStateUpdate-74836163683876880-127.0.0.1:44530_solr-n_0000000000) [     ] o.a.s.c.Overseer Exception in Overseer when process message from work queue, retrying
   [junit4]   2>           => org.apache.zookeeper.KeeperException$NoNodeException: KeeperErrorCode = NoNode for /collections/collection1/state.json
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:118)
   [junit4]   2> org.apache.zookeeper.KeeperException$NoNodeException: KeeperErrorCode = NoNode for /collections/collection1/state.json
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:118) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.create(ZooKeeper.java:1538) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$create$7(SolrZkClient.java:394) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:71) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.create(SolrZkClient.java:394) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.cloud.overseer.ZkStateWriter.writePendingUpdates(ZkStateWriter.java:204) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.cloud.overseer.ZkStateWriter.enqueueUpdate(ZkStateWriter.java:130) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.cloud.Overseer$ClusterStateUpdater.processQueueItem(Overseer.java:315) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.cloud.Overseer$ClusterStateUpdater.run(Overseer.java:189) ~[java/:?]
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:834) [?:?]
   [junit4]   2> 3182012 ERROR (OverseerStateUpdate-74836163683876880-127.0.0.1:44530_solr-n_0000000000) [     ] o.a.s.c.Overseer Exception in Overseer main queue loop
   [junit4]   2>           => org.apache.zookeeper.KeeperException$NoNodeException: KeeperErrorCode = NoNode for /collections/collection1/state.json
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:118)
   [junit4]   2> org.apache.zookeeper.KeeperException$NoNodeException: KeeperErrorCode = NoNode for /collections/collection1/state.json
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:118) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.create(ZooKeeper.java:1538) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$create$7(SolrZkClient.java:394) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:71) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.create(SolrZkClient.java:394) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.cloud.overseer.ZkStateWriter.writePendingUpdates(ZkStateWriter.java:204) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.cloud.Overseer$ClusterStateUpdater.run(Overseer.java:259) ~[java/:?]
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:834) [?:?]
   [junit4]   2> 3182015 WARN  (OverseerStateUpdate-74836163683876880-127.0.0.1:44530_solr-n_0000000000) [     ] o.a.s.c.Overseer Exception when process message = {
   [junit4]   2>   "operation":"create",
   [junit4]   2>   "name":"collection1",
   [junit4]   2>   "replicationFactor":"1",
   [junit4]   2>   "numShards":"1",
   [junit4]   2>   "stateFormat":"2",
   [junit4]   2>   "createNodeSet":""}, consider as bad message and poll out from the queue
   [junit4]   2> 3182016 ERROR (OverseerStateUpdate-74836163683876880-127.0.0.1:44530_solr-n_0000000000) [     ] o.a.s.c.Overseer Exception in Overseer when process message from work queue, retrying
   [junit4]   2>           => org.apache.zookeeper.KeeperException$NoNodeException: KeeperErrorCode = NoNode for /collections/collection1/state.json
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:118)
   [junit4]   2> org.apache.zookeeper.KeeperException$NoNodeException: KeeperErrorCode = NoNode for /collections/collection1/state.json
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:118) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.create(ZooKeeper.java:1538) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$create$7(SolrZkClient.java:394) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:71) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.create(SolrZkClient.java:394) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.cloud.overseer.ZkStateWriter.writePendingUpdates(ZkStateWriter.java:204) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.cloud.overseer.ZkStateWriter.enqueueUpdate(ZkStateWriter.java:130) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.cloud.Overseer$ClusterStateUpdater.processQueueItem(Overseer.java:315) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.cloud.Overseer$ClusterStateUpdater.run(Overseer.java:189) ~[java/:?]
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:834) [?:?]
   [junit4]   2> 3182454 INFO  (closeThreadPool-8470-thread-1) [     ] o.a.s.c.Overseer Overseer (id=74836163683876880-127.0.0.1:44530_solr-n_0000000000) closing
   [junit4]   2> 3182454 INFO  (OverseerAutoScalingTriggerThread-74836163683876880-127.0.0.1:44530_solr-n_0000000000) [     ] o.a.s.c.a.OverseerTriggerThread OverseerTriggerThread woken up but we are closed, exiting.
   [junit4]   2> 3182466 INFO  (OverseerStateUpdate-74836163683876880-127.0.0.1:44530_solr-n_0000000000) [     ] o.a.s.c.Overseer Overseer Loop exiting : 127.0.0.1:44530_solr
   [junit4]   2> 3182559 WARN  (OverseerExitThread) [     ] o.a.s.c.Overseer Error communicating with ZooKeeper
   [junit4]   2>           => org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /overseer_elect/leader
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:134)
   [junit4]   2> org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /overseer_elect/leader
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:134) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:2131) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:337) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:71) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:337) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.cloud.Overseer$ClusterStateUpdater.checkIfIamStillLeader(Overseer.java:331) ~[java/:?]
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:834) [?:?]
   [junit4]   2> 3182845 INFO  (TEST-OverseerTest.testExceptionWhenFlushClusterState-seed#[9783BF4946FEF4B1]) [     ] o.a.s.SolrTestCaseJ4 ###Ending testExceptionWhenFlushClusterState
   [junit4]   2> 3183090 INFO  (TEST-OverseerTest.testShardAssignment-seed#[9783BF4946FEF4B1]) [     ] o.a.s.SolrTestCaseJ4 ###Starting testShardAssignment
   [junit4]   2> 3183697 INFO  (TEST-OverseerTest.testShardAssignment-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 3183706 INFO  (zkConnectionManagerCallback-8472-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3183706 INFO  (TEST-OverseerTest.testShardAssignment-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 3183709 WARN  (TEST-OverseerTest.testShardAssignment-seed#[9783BF4946FEF4B1]) [     ] o.e.j.u.s.S.config No Client EndPointIdentificationAlgorithm configured for SslContextFactory@7e8d449f[provider=null,keyStore=null,trustStore=null]
   [junit4]   2> 3183722 INFO  (TEST-OverseerTest.testShardAssignment-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 3183723 INFO  (zkConnectionManagerCallback-8479-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3183723 INFO  (TEST-OverseerTest.testShardAssignment-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 3183754 INFO  (TEST-OverseerTest.testShardAssignment-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 3183767 INFO  (zkConnectionManagerCallback-8484-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3183774 INFO  (TEST-OverseerTest.testShardAssignment-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 3183863 INFO  (TEST-OverseerTest.testShardAssignment-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.s.i.ZkClientClusterStateProvider Cluster at 127.0.0.1:44530/solr ready
   [junit4]   2> 3183877 INFO  (TEST-OverseerTest.testShardAssignment-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.OverseerElectionContext I am going to be the leader 127.0.0.1:44530_solr
   [junit4]   2> 3183878 INFO  (TEST-OverseerTest.testShardAssignment-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.Overseer Overseer (id=74836163683876883-127.0.0.1:44530_solr-n_0000000000) starting
   [junit4]   2> 3183897 INFO  (OverseerStateUpdate-74836163683876883-127.0.0.1:44530_solr-n_0000000000) [     ] o.a.s.c.Overseer Starting to work on the main queue : 127.0.0.1:44530_solr
   [junit4]   2> 3183917 WARN  (TEST-OverseerTest.testShardAssignment-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.Overseer Unable to check back-compat of .system collection - can't obtain ClusterState.
   [junit4]   2> 3184016 INFO  (TEST-OverseerTest.testShardAssignment-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 3184016 INFO  (zkConnectionManagerCallback-8488-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3184016 INFO  (TEST-OverseerTest.testShardAssignment-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 3184033 INFO  (zkCallback-8372-thread-2) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 3184050 INFO  (zkCallback-8487-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 3184067 INFO  (zkCallback-8471-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 3184068 INFO  (zkCallback-8483-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 3184248 INFO  (TEST-OverseerTest.testShardAssignment-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.ShardLeaderElectionContextBase make sure parent is created /collections/collection1/leaders/shard1
   [junit4]   2> 3184266 INFO  (TEST-OverseerTest.testShardAssignment-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.ShardLeaderElectionContextBase Creating leader registration node /collections/collection1/leaders/shard1/leader after winning as /collections/collection1/leader_elect/shard1/election/74836163683876886-127.0.0.1_core1-n_0000000000
   [junit4]   2> 3184404 INFO  (TEST-OverseerTest.testShardAssignment-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.ShardLeaderElectionContextBase make sure parent is created /collections/collection1/leaders/shard2
   [junit4]   2> 3184405 INFO  (TEST-OverseerTest.testShardAssignment-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.ShardLeaderElectionContextBase Creating leader registration node /collections/collection1/leaders/shard2/leader after winning as /collections/collection1/leader_elect/shard2/election/74836163683876886-127.0.0.1_core2-n_0000000000
   [junit4]   2> 3184532 INFO  (TEST-OverseerTest.testShardAssignment-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.ShardLeaderElectionContextBase make sure parent is created /collections/collection1/leaders/shard3
   [junit4]   2> 3184549 INFO  (TEST-OverseerTest.testShardAssignment-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.ShardLeaderElectionContextBase Creating leader registration node /collections/collection1/leaders/shard3/leader after winning as /collections/collection1/leader_elect/shard3/election/74836163683876886-127.0.0.1_core3-n_0000000000
   [junit4]   2> 3184668 INFO  (TEST-OverseerTest.testShardAssignment-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.ShardLeaderElectionContextBase make sure parent is created /collections/collection1/leaders/shard1
   [junit4]   2> 3184783 INFO  (TEST-OverseerTest.testShardAssignment-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.ShardLeaderElectionContextBase make sure parent is created /collections/collection1/leaders/shard2
   [junit4]   2> 3184890 INFO  (TEST-OverseerTest.testShardAssignment-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.ShardLeaderElectionContextBase make sure parent is created /collections/collection1/leaders/shard3
   [junit4]   2> 3184895 INFO  (TEST-OverseerTest.testShardAssignment-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.ShardLeaderElectionContextBase No version found for ephemeral leader parent node, won't remove previous leader registration.
   [junit4]   2> 3184909 INFO  (TEST-OverseerTest.testShardAssignment-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.ShardLeaderElectionContextBase No version found for ephemeral leader parent node, won't remove previous leader registration.
   [junit4]   2> 3184909 INFO  (TEST-OverseerTest.testShardAssignment-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.ShardLeaderElectionContextBase No version found for ephemeral leader parent node, won't remove previous leader registration.
   [junit4]   2> 3184910 WARN  (zkCallback-8487-thread-1) [     ] o.a.s.c.LeaderElector Our node is no longer in line to be leader
   [junit4]   2> 3184910 WARN  (zkCallback-8487-thread-1) [     ] o.a.s.c.LeaderElector Our node is no longer in line to be leader
   [junit4]   2> 3184911 WARN  (zkCallback-8487-thread-1) [     ] o.a.s.c.LeaderElector Our node is no longer in line to be leader
   [junit4]   2> 3184921 INFO  (zkCallback-8483-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (0)
   [junit4]   2> 3184921 INFO  (zkCallback-8471-thread-2) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (0)
   [junit4]   2> 3184921 INFO  (zkCallback-8372-thread-2) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (0)
   [junit4]   2> 3185332 INFO  (closeThreadPool-8492-thread-1) [     ] o.a.s.c.Overseer Overseer (id=74836163683876883-127.0.0.1:44530_solr-n_0000000000) closing
   [junit4]   2> 3185332 INFO  (OverseerStateUpdate-74836163683876883-127.0.0.1:44530_solr-n_0000000000) [     ] o.a.s.c.Overseer Overseer Loop exiting : 127.0.0.1:44530_solr
   [junit4]   2> 3185332 INFO  (OverseerAutoScalingTriggerThread-74836163683876883-127.0.0.1:44530_solr-n_0000000000) [     ] o.a.s.c.a.OverseerTriggerThread OverseerTriggerThread woken up but we are closed, exiting.
   [junit4]   2> 3185340 WARN  (OverseerExitThread) [     ] o.a.s.c.Overseer Error communicating with ZooKeeper
   [junit4]   2>           => org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /overseer_elect/leader
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:134)
   [junit4]   2> org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /overseer_elect/leader
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:134) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:2131) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:337) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:71) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:337) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.cloud.Overseer$ClusterStateUpdater.checkIfIamStillLeader(Overseer.java:331) ~[java/:?]
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:834) [?:?]
   [junit4]   2> 3185492 INFO  (TEST-OverseerTest.testShardAssignment-seed#[9783BF4946FEF4B1]) [     ] o.a.s.SolrTestCaseJ4 ###Ending testShardAssignment
   [junit4]   2> 3185512 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.SolrTestCaseJ4 ###Starting testShardLeaderChange
   [junit4]   2> 3185829 INFO  (Thread-4440) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 3185841 INFO  (zkConnectionManagerCallback-8496-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3185841 INFO  (Thread-4440) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 3185855 WARN  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.e.j.u.s.S.config No Client EndPointIdentificationAlgorithm configured for SslContextFactory@6f6c2e0b[provider=null,keyStore=null,trustStore=null]
   [junit4]   2> 3185856 WARN  (Thread-4440) [     ] o.e.j.u.s.S.config No Client EndPointIdentificationAlgorithm configured for SslContextFactory@504db3d2[provider=null,keyStore=null,trustStore=null]
   [junit4]   2> 3185876 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 3185876 INFO  (Thread-4440) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 3185877 INFO  (zkConnectionManagerCallback-8505-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3185877 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 3185878 INFO  (zkConnectionManagerCallback-8508-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3185878 INFO  (Thread-4440) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 3185880 WARN  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.e.j.u.s.S.config No Client EndPointIdentificationAlgorithm configured for SslContextFactory@70fd7723[provider=null,keyStore=null,trustStore=null]
   [junit4]   2> 3185893 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 3185894 INFO  (Thread-4440) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 3185894 INFO  (zkConnectionManagerCallback-8515-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3185894 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 3185906 INFO  (zkConnectionManagerCallback-8520-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3185906 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 3185906 INFO  (Thread-4440) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 3185923 INFO  (Thread-4440) [     ] o.a.s.c.s.i.ZkClientClusterStateProvider Cluster at 127.0.0.1:44530/solr ready
   [junit4]   2> 3185925 INFO  (Thread-4440) [     ] o.a.s.c.OverseerElectionContext I am going to be the leader 127.0.0.1:44530_solr
   [junit4]   2> 3185937 INFO  (zkConnectionManagerCallback-8525-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3185937 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 3185942 INFO  (Thread-4440) [     ] o.a.s.c.Overseer Overseer (id=74836163683876887-127.0.0.1:44530_solr-n_0000000000) starting
   [junit4]   2> 3185964 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.s.i.ZkClientClusterStateProvider Cluster at 127.0.0.1:44530/solr ready
   [junit4]   2> 3185994 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 3185994 INFO  (zkConnectionManagerCallback-8527-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3185994 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 3186011 INFO  (zkCallback-8372-thread-2) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 3186014 WARN  (Thread-4440) [     ] o.a.s.c.Overseer Unable to check back-compat of .system collection - can't obtain ClusterState.
   [junit4]   2> 3186014 INFO  (Thread-4440) [     ] o.a.s.c.OverseerTest Killing overseer.
   [junit4]   2> 3186016 INFO  (zkCallback-8519-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 3186016 INFO  (zkCallback-8524-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 3186016 INFO  (zkCallback-8504-thread-1) [     ] o.a.s.c.OverseerElectionContext I am going to be the leader 127.0.0.1:44530_solr
   [junit4]   2> 3186016 INFO  (zkCallback-8526-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 3186018 INFO  (zkCallback-8504-thread-1) [     ] o.a.s.c.Overseer Overseer (id=74836163683876889-127.0.0.1:44530_solr-n_0000000001) starting
   [junit4]   2> 3186037 INFO  (OverseerStateUpdate-74836163683876889-127.0.0.1:44530_solr-n_0000000001) [     ] o.a.s.c.Overseer Starting to work on the main queue : 127.0.0.1:44530_solr
   [junit4]   2> 3186046 WARN  (zkCallback-8504-thread-1) [     ] o.a.s.c.Overseer Unable to check back-compat of .system collection - can't obtain ClusterState.
   [junit4]   2> 3186051 INFO  (OverseerStateUpdate-74836163683876889-127.0.0.1:44530_solr-n_0000000001) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 3186116 INFO  (OverseerStateUpdate-74836163683876887-127.0.0.1:44530_solr-n_0000000000) [     ] o.a.s.c.Overseer According to ZK I (id=74836163683876887-127.0.0.1:44530_solr-n_0000000000) am no longer a leader. propsId=null
   [junit4]   2> 3186116 INFO  (OverseerStateUpdate-74836163683876887-127.0.0.1:44530_solr-n_0000000000) [     ] o.a.s.c.Overseer Starting to work on the main queue : 127.0.0.1:44530_solr
   [junit4]   2> 3186116 INFO  (OverseerStateUpdate-74836163683876887-127.0.0.1:44530_solr-n_0000000000) [     ] o.a.s.c.Overseer According to ZK I (id=74836163683876887-127.0.0.1:44530_solr-n_0000000000) am no longer a leader. propsId=null
   [junit4]   2> 3186116 INFO  (OverseerStateUpdate-74836163683876887-127.0.0.1:44530_solr-n_0000000000) [     ] o.a.s.c.Overseer Overseer Loop exiting : 127.0.0.1:44530_solr
   [junit4]   2> 3186117 INFO  (Thread-4440) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 3186118 WARN  (OverseerExitThread) [     ] o.a.s.c.Overseer Error communicating with ZooKeeper
   [junit4]   2>           => org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /overseer_elect/leader
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:134)
   [junit4]   2> org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /overseer_elect/leader
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:134) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:2131) ~[zookeeper-3.5.5.jar:3.5.5]
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$getData$5(SolrZkClient.java:337) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:71) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:337) ~[java/:?]
   [junit4]   2> 	at org.apache.solr.cloud.Overseer$ClusterStateUpdater.checkIfIamStillLeader(Overseer.java:331) ~[java/:?]
   [junit4]   2> 	at java.lang.Thread.run(Thread.java:834) [?:?]
   [junit4]   2> 3186118 INFO  (zkConnectionManagerCallback-8531-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3186118 INFO  (Thread-4440) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 3186118 INFO  (Thread-4440) [     ] o.a.s.c.Overseer Overseer (id=74836163683876887-127.0.0.1:44530_solr-n_0000000000) closing
   [junit4]   2> 3186118 INFO  (OverseerAutoScalingTriggerThread-74836163683876887-127.0.0.1:44530_solr-n_0000000000) [     ] o.a.s.c.a.OverseerTriggerThread OverseerTriggerThread woken up but we are closed, exiting.
   [junit4]   2> 3186119 INFO  (OverseerCollectionConfigSetProcessor-74836163683876887-127.0.0.1:44530_solr-n_0000000000) [     ] o.a.s.c.OverseerTaskProcessor According to ZK I (id=74836163683876887-127.0.0.1:44530_solr-n_0000000000) am no longer a leader. propsId=null
   [junit4]   2> 3186119 ERROR (OverseerCollectionConfigSetProcessor-74836163683876887-127.0.0.1:44530_solr-n_0000000000) [     ] o.a.s.c.OverseerTaskProcessor :org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /overseer/collection-queue-work
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:134)
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54)
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.getChildren(ZooKeeper.java:2589)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$getChildren$4(SolrZkClient.java:325)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:71)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.getChildren(SolrZkClient.java:325)
   [junit4]   2> 	at org.apache.solr.cloud.ZkDistributedQueue.fetchZkChildren(ZkDistributedQueue.java:415)
   [junit4]   2> 	at org.apache.solr.cloud.OverseerTaskQueue.getTailId(OverseerTaskQueue.java:274)
   [junit4]   2> 	at org.apache.solr.cloud.OverseerTaskProcessor.run(OverseerTaskProcessor.java:170)
   [junit4]   2> 	at java.base/java.lang.Thread.run(Thread.java:834)
   [junit4]   2> 
   [junit4]   2> 3186124 WARN  (Thread-4440) [     ] o.e.j.u.s.S.config No Client EndPointIdentificationAlgorithm configured for SslContextFactory@6e8c27cf[provider=null,keyStore=null,trustStore=null]
   [junit4]   2> 3186125 INFO  (Thread-4440) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 3186126 INFO  (zkConnectionManagerCallback-8538-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3186126 INFO  (Thread-4440) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 3186135 INFO  (Thread-4440) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 3186136 INFO  (zkConnectionManagerCallback-8543-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3186136 INFO  (Thread-4440) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 3186137 INFO  (Thread-4440) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 3186138 INFO  (Thread-4440) [     ] o.a.s.c.s.i.ZkClientClusterStateProvider Cluster at 127.0.0.1:44530/solr ready
   [junit4]   2> 3186178 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.ShardLeaderElectionContextBase make sure parent is created /collections/collection1/leaders/shard1
   [junit4]   2> 3186180 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.ShardLeaderElectionContextBase Creating leader registration node /collections/collection1/leaders/shard1/leader after winning as /collections/collection1/leader_elect/shard1/election/74836163683876893-node1_core1-n_0000000000
   [junit4]   2> org.apache.solr.common.SolrException: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /overseer/queue
   [junit4]   2> 	at org.apache.solr.cloud.ZkDistributedQueue.<init>(ZkDistributedQueue.java:129)
   [junit4]   2> 	at org.apache.solr.cloud.Overseer.getStateUpdateQueue(Overseer.java:824)
   [junit4]   2> 	at org.apache.solr.cloud.Overseer.getStateUpdateQueue(Overseer.java:812)
   [junit4]   2> 	at org.apache.solr.cloud.Overseer.offerStateUpdate(Overseer.java:985)
   [junit4]   2> 	at org.apache.solr.cloud.ShardLeaderElectionContextBase.runLeaderProcess(ElectionContext.java:251)
   [junit4]   2> 	at org.apache.solr.cloud.LeaderElector.runIamLeaderProcess(LeaderElector.java:172)
   [junit4]   2> 	at org.apache.solr.cloud.LeaderElector.checkIfIamLeader(LeaderElector.java:137)
   [junit4]   2> 	at org.apache.solr.cloud.LeaderElector.joinElection(LeaderElector.java:309)
   [junit4]   2> 	at org.apache.solr.cloud.LeaderElector.joinElection(LeaderElector.java:218)
   [junit4]   2> 	at org.apache.solr.cloud.OverseerTest$MockZKController.publishState(OverseerTest.java:250)
   [junit4]   2> 	at org.apache.solr.cloud.OverseerTest.testShardLeaderChange(OverseerTest.java:932)
   [junit4]   2> 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   [junit4]   2> 	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
   [junit4]   2> 	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   [junit4]   2> 	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1750)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.RandomizedRunner$8.evaluate(RandomizedRunner.java:938)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.RandomizedRunner$9.evaluate(RandomizedRunner.java:974)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.RandomizedRunner$10.evaluate(RandomizedRunner.java:988)
   [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:947)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.RandomizedRunner$5.evaluate(RandomizedRunner.java:832)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.RandomizedRunner$6.evaluate(RandomizedRunner.java:883)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:894)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.SystemPropertiesRestoreRule$1.evaluate(SystemPropertiesRestoreRule.java:57)
   [junit4]   2> 	at org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:45)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
   [junit4]   2> 	at org.apache.lucene.util.TestRuleStoreClassName$1.evaluate(TestRuleStoreClassName.java:41)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
   [junit4]   2> 	at org.apache.lucene.util.TestRuleAssertionsRequired$1.evaluate(TestRuleAssertionsRequired.java:53)
   [junit4]   2> 	at org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:47)
   [junit4]   2> 	at org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:64)
   [junit4]   2> 	at org.apache.lucene.util.TestRuleIgnoreTestSuites$1.evaluate(TestRuleIgnoreTestSuites.java:54)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
   [junit4]   2> 	at com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:368)
   [junit4]   2> 	at java.base/java.lang.Thread.run(Thread.java:834)
   [junit4]   2> Caused by: org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /overseer/queue
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:134)
   [junit4]   2> 	at org.apache.zookeeper.KeeperException.create(KeeperException.java:54)
   [junit4]   2> 	at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:2021)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.lambda$exists$3(SolrZkClient.java:313)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:71)
   [junit4]   2> 	at org.apache.solr.common.cloud.SolrZkClient.exists(SolrZkClient.java:313)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.ensureExists(ZkCmdExecutor.java:108)
   [junit4]   2> 	at org.apache.solr.common.cloud.ZkCmdExecutor.ensureExists(ZkCmdExecutor.java:93)
   [junit4]   2> 	at org.apache.solr.cloud.ZkDistributedQueue.<init>(ZkDistributedQueue.java:127)
   [junit4]   2> 	... 48 more
   [junit4]   2> 3186202 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.ShardLeaderElectionContextBase make sure parent is created /collections/collection1/leaders/shard1
   [junit4]   2> 3186203 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.ShardLeaderElectionContextBase Creating leader registration node /collections/collection1/leaders/shard1/leader after winning as /collections/collection1/leader_elect/shard1/election/74836163683876893-node1_core1-n_0000000001
   [junit4]   2> 3186396 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.ShardLeaderElectionContextBase make sure parent is created /collections/collection1/leaders/shard1
   [junit4]   2> 3186411 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.ShardLeaderElectionContextBase Creating leader registration node /collections/collection1/leaders/shard1/leader after winning as /collections/collection1/leader_elect/shard1/election/74836163683876893-node1_core1-n_0000000002
   [junit4]   2> 3186424 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 3186460 INFO  (zkConnectionManagerCallback-8545-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3186460 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 3186525 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 3186530 INFO  (zkCallback-8519-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (2)
   [junit4]   2> 3186530 INFO  (zkCallback-8504-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (2)
   [junit4]   2> 3186530 INFO  (zkCallback-8526-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (2)
   [junit4]   2> 3186530 INFO  (zkCallback-8372-thread-2) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (2)
   [junit4]   2> 3186530 INFO  (zkCallback-8524-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (2)
   [junit4]   2> 3186530 INFO  (zkCallback-8542-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (2)
   [junit4]   2> 3186568 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.ShardLeaderElectionContextBase make sure parent is created /collections/collection1/leaders/shard1
   [junit4]   2> 3186569 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.ShardLeaderElectionContextBase Creating leader registration node /collections/collection1/leaders/shard1/leader after winning as /collections/collection1/leader_elect/shard1/election/74836163683876893-node1_core1-n_0000000003
   [junit4]   2> 3186609 INFO  (zkCallback-8544-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (2)
   [junit4]   2> 3186791 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.ShardLeaderElectionContextBase make sure parent is created /collections/collection1/leaders/shard1
   [junit4]   2> 3186827 INFO  (zkCallback-8544-thread-1) [     ] o.a.s.c.ShardLeaderElectionContextBase Creating leader registration node /collections/collection1/leaders/shard1/leader after winning as /collections/collection1/leader_elect/shard1/election/74836163683876897-node2_core4-n_0000000004
   [junit4]   2> 3186828 INFO  (zkCallback-8526-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (2) -> (1)
   [junit4]   2> 3186828 INFO  (zkCallback-8519-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (2) -> (1)
   [junit4]   2> 3186828 INFO  (zkCallback-8504-thread-2) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (2) -> (1)
   [junit4]   2> 3186828 INFO  (zkCallback-8524-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (2) -> (1)
   [junit4]   2> 3186828 INFO  (zkCallback-8542-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (2) -> (1)
   [junit4]   2> 3186845 INFO  (zkCallback-8372-thread-2) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (2) -> (1)
   [junit4]   2> 3186846 INFO  (zkCallback-8544-thread-2) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (2) -> (1)
   [junit4]   2> 3186946 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 3186947 INFO  (zkConnectionManagerCallback-8549-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3186947 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 3186950 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 3186951 INFO  (zkConnectionManagerCallback-8554-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3186951 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 3186952 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 3186953 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.s.i.ZkClientClusterStateProvider Cluster at 127.0.0.1:44530/solr ready
   [junit4]   2> 3186967 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 3186968 INFO  (zkConnectionManagerCallback-8556-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3186968 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 3186975 INFO  (Thread-4440) [     ] o.a.s.c.OverseerTest Killing overseer.
   [junit4]   2> 3186980 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 3186982 INFO  (zkCallback-8544-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (2)
   [junit4]   2> 3186982 INFO  (zkCallback-8524-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (2)
   [junit4]   2> 3186982 INFO  (zkCallback-8519-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (2)
   [junit4]   2> 3186982 INFO  (zkCallback-8372-thread-2) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (2)
   [junit4]   2> 3186982 INFO  (zkCallback-8504-thread-2) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (2)
   [junit4]   2> 3186982 INFO  (zkCallback-8542-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (2)
   [junit4]   2> 3186984 WARN  (OverseerStateUpdate-74836163683876889-127.0.0.1:44530_solr-n_0000000001) [     ] o.a.s.c.o.ClusterStateMutator Collection collection1 already exists. exit
   [junit4]   2> 3187003 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.ShardLeaderElectionContextBase make sure parent is created /collections/collection1/leaders/shard1
   [junit4]   2> 3187019 INFO  (zkCallback-8555-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (2)
   [junit4]   2> 3187019 INFO  (zkCallback-8553-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (2)
   [junit4]   2> 3187021 INFO  (zkCallback-8555-thread-1) [     ] o.a.s.c.ShardLeaderElectionContextBase Creating leader registration node /collections/collection1/leaders/shard1/leader after winning as /collections/collection1/leader_elect/shard1/election/74836163683876900-node1_core1-n_0000000005
   [junit4]   2> 3187022 INFO  (zkCallback-8372-thread-2) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (2) -> (1)
   [junit4]   2> 3187022 INFO  (zkCallback-8519-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (2) -> (1)
   [junit4]   2> 3187022 INFO  (zkCallback-8504-thread-2) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (2) -> (1)
   [junit4]   2> 3187022 INFO  (zkCallback-8553-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (2) -> (1)
   [junit4]   2> 3187022 INFO  (zkCallback-8542-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (2) -> (1)
   [junit4]   2> 3187022 INFO  (zkCallback-8524-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (2) -> (1)
   [junit4]   2> 3187022 INFO  (zkCallback-8544-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (2) -> (1)
   [junit4]   2> 3187055 INFO  (zkCallback-8555-thread-2) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (2) -> (1)
   [junit4]   2> 3187088 INFO  (Thread-4440) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 3187089 INFO  (zkConnectionManagerCallback-8560-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3187089 INFO  (Thread-4440) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 3187089 INFO  (Thread-4440) [     ] o.a.s.c.Overseer Overseer (id=74836163683876887-127.0.0.1:44530_solr-n_0000000000) closing
   [junit4]   2> 3187091 WARN  (Thread-4440) [     ] o.e.j.u.s.S.config No Client EndPointIdentificationAlgorithm configured for SslContextFactory@67defeff[provider=null,keyStore=null,trustStore=null]
   [junit4]   2> 3187092 INFO  (Thread-4440) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 3187093 INFO  (zkConnectionManagerCallback-8567-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3187093 INFO  (Thread-4440) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 3187094 INFO  (Thread-4440) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 3187095 INFO  (zkConnectionManagerCallback-8572-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
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   [junit4]   2> 3187114 INFO  (Thread-4440) [     ] o.a.s.c.s.i.ZkClientClusterStateProvider Cluster at 127.0.0.1:44530/solr ready
   [junit4]   2> 3187319 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.ShardLeaderElectionContextBase make sure parent is created /collections/collection1/leaders/shard1
   [junit4]   2> 3187320 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.ShardLeaderElectionContextBase Creating leader registration node /collections/collection1/leaders/shard1/leader after winning as /collections/collection1/leader_elect/shard1/election/74836163683876900-node1_core1-n_0000000006
   [junit4]   2> 3187322 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
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   [junit4]   2> 3187335 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
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   [junit4]   2> 3187370 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.ShardLeaderElectionContextBase make sure parent is created /collections/collection1/leaders/shard1
   [junit4]   2> 3187370 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.ShardLeaderElectionContextBase Creating leader registration node /collections/collection1/leaders/shard1/leader after winning as /collections/collection1/leader_elect/shard1/election/74836163683876900-node1_core1-n_0000000007
   [junit4]   2> 3187400 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.ShardLeaderElectionContextBase make sure parent is created /collections/collection1/leaders/shard1
   [junit4]   2> 3187403 INFO  (zkCallback-8372-thread-2) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (2) -> (1)
   [junit4]   2> 3187403 INFO  (zkCallback-8553-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (2) -> (1)
   [junit4]   2> 3187403 INFO  (zkCallback-8519-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (2) -> (1)
   [junit4]   2> 3187403 INFO  (zkCallback-8504-thread-2) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (2) -> (1)
   [junit4]   2> 3187403 INFO  (zkCallback-8542-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (2) -> (1)
   [junit4]   2> 3187403 INFO  (zkCallback-8571-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (2) -> (1)
   [junit4]   2> 3187403 INFO  (zkCallback-8524-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (2) -> (1)
   [junit4]   2> 3187403 INFO  (zkCallback-8555-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (2) -> (1)
   [junit4]   2> 3187419 INFO  (zkCallback-8573-thread-1) [     ] o.a.s.c.ShardLeaderElectionContextBase Creating leader registration node /collections/collection1/leaders/shard1/leader after winning as /collections/collection1/leader_elect/shard1/election/74836163683876904-node2_core4-n_0000000008
   [junit4]   2> 3187419 INFO  (zkCallback-8573-thread-2) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (2) -> (1)
   [junit4]   2> 3187517 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 3187518 INFO  (zkConnectionManagerCallback-8578-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3187518 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 3187521 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 3187523 INFO  (zkConnectionManagerCallback-8583-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3187523 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 3187524 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 3187534 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.s.i.ZkClientClusterStateProvider Cluster at 127.0.0.1:44530/solr ready
   [junit4]   2> 3187535 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 3187535 INFO  (Thread-4440) [     ] o.a.s.c.OverseerTest Killing overseer.
   [junit4]   2> 3187535 INFO  (zkConnectionManagerCallback-8585-thread-1) [     ] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 3187536 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 3187539 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (0) -> (1)
   [junit4]   2> 3187554 INFO  (zkCallback-8542-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (2)
   [junit4]   2> 3187554 INFO  (zkCallback-8553-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (2)
   [junit4]   2> 3187554 INFO  (zkCallback-8524-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (2)
   [junit4]   2> 3187554 INFO  (zkCallback-8372-thread-2) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (2)
   [junit4]   2> 3187554 INFO  (zkCallback-8571-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (2)
   [junit4]   2> 3187554 INFO  (zkCallback-8504-thread-2) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (2)
   [junit4]   2> 3187554 INFO  (zkCallback-8519-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (2)
   [junit4]   2> 3187554 INFO  (zkCallback-8573-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (2)
   [junit4]   2> 3187554 INFO  (zkCallback-8584-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (2)
   [junit4]   2> 3187555 WARN  (OverseerStateUpdate-74836163683876889-127.0.0.1:44530_solr-n_0000000001) [     ] o.a.s.c.o.ClusterStateMutator Collection collection1 already exists. exit
   [junit4]   2> 3187562 INFO  (zkCallback-8582-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (2)
   [junit4]   2> 3187563 INFO  (TEST-OverseerTest.testShardLeaderChange-seed#[9783BF4946FEF4B1]) [     ] o.a.s.c.ShardLeaderElectionContextBase make sure parent is created /collections/collection1/leaders/shard1
   [junit4]   2> 3187565 INFO  (zkCallback-8584-thread-1) [     ] o.a.s.c.ShardLeaderElectionContextBase Creating leader registration node /collections/collection1/leaders/shard1/leader after winning as /collections/collection1/leader_elect/shard1/election/74836163683876907-node1_core1-n_0000000009
   [junit4]   2> 3187574 INFO  (zkCallback-8542-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (2) -> (1)
   [junit4]   2> 3187575 INFO  (zkCallback-8372-thread-2) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (2) -> (1)
   [junit4]   2> 3187575 INFO  (zkCallback-8573-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (2) -> (1)
   [junit4]   2> 3187575 INFO  (zkCallback-8571-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (2) -> (1)
   [junit4]   2> 3187575 INFO  (zkCallback-8553-thread-1) [     ] o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (2) -> (1)
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   [junit4]   2> 3187575 INFO  (zkCallback-8504-thread-2) [     ] o.a.s.c.c.ZkS

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

cene-Solr-Tests-master/lucene/top-level-ivy-settings.xml

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

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

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

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

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

resolve:

jar-checksums:
    [mkdir] Created dir: /home/jenkins/jenkins-slave/workspace/Lucene-Solr-Tests-master/solr/null1536672816
     [copy] Copying 248 files to /home/jenkins/jenkins-slave/workspace/Lucene-Solr-Tests-master/solr/null1536672816
   [delete] Deleting directory /home/jenkins/jenkins-slave/workspace/Lucene-Solr-Tests-master/solr/null1536672816

check-working-copy:
[ivy:cachepath] :: resolving dependencies :: #;working@lucene2-us-west.apache.org
[ivy:cachepath] 	confs: [default]
[ivy:cachepath] 	found org.eclipse.jgit#org.eclipse.jgit;5.3.0.201903130848-r in public
[ivy:cachepath] 	found com.jcraft#jsch;0.1.54 in public
[ivy:cachepath] 	found com.jcraft#jzlib;1.1.1 in public
[ivy:cachepath] 	found com.googlecode.javaewah#JavaEWAH;1.1.6 in public
[ivy:cachepath] 	found org.slf4j#slf4j-api;1.7.2 in public
[ivy:cachepath] 	found org.bouncycastle#bcpg-jdk15on;1.60 in public
[ivy:cachepath] 	found org.bouncycastle#bcprov-jdk15on;1.60 in public
[ivy:cachepath] 	found org.bouncycastle#bcpkix-jdk15on;1.60 in public
[ivy:cachepath] 	found org.slf4j#slf4j-nop;1.7.2 in public
[ivy:cachepath] :: resolution report :: resolve 70ms :: artifacts dl 2ms
	---------------------------------------------------------------------
	|                  |            modules            ||   artifacts   |
	|       conf       | number| search|dwnlded|evicted|| number|dwnlded|
	---------------------------------------------------------------------
	|      default     |   9   |   0   |   0   |   0   ||   9   |   0   |
	---------------------------------------------------------------------
[wc-checker] Initializing working copy...
[wc-checker] Checking working copy status...

-jenkins-base:

BUILD SUCCESSFUL
Total time: 339 minutes 4 seconds
Archiving artifacts
java.lang.InterruptedException: no matches found within 10000
	at hudson.FilePath$ValidateAntFileMask.hasMatch(FilePath.java:2847)
	at hudson.FilePath$ValidateAntFileMask.invoke(FilePath.java:2726)
	at hudson.FilePath$ValidateAntFileMask.invoke(FilePath.java:2707)
	at hudson.FilePath$FileCallableWrapper.call(FilePath.java:3086)
Also:   hudson.remoting.Channel$CallSiteStackTrace: Remote call to lucene2
		at hudson.remoting.Channel.attachCallSiteStackTrace(Channel.java:1741)
		at hudson.remoting.UserRequest$ExceptionResponse.retrieve(UserRequest.java:357)
		at hudson.remoting.Channel.call(Channel.java:955)
		at hudson.FilePath.act(FilePath.java:1072)
		at hudson.FilePath.act(FilePath.java:1061)
		at hudson.FilePath.validateAntFileMask(FilePath.java:2705)
		at hudson.tasks.ArtifactArchiver.perform(ArtifactArchiver.java:243)
		at hudson.tasks.BuildStepCompatibilityLayer.perform(BuildStepCompatibilityLayer.java:81)
		at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:20)
		at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:744)
		at hudson.model.AbstractBuild$AbstractBuildExecution.performAllBuildSteps(AbstractBuild.java:690)
		at hudson.model.Build$BuildExecution.post2(Build.java:186)
		at hudson.model.AbstractBuild$AbstractBuildExecution.post(AbstractBuild.java:635)
		at hudson.model.Run.execute(Run.java:1835)
		at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
		at hudson.model.ResourceController.execute(ResourceController.java:97)
		at hudson.model.Executor.run(Executor.java:429)
Caused: hudson.FilePath$TunneledInterruptedException
	at hudson.FilePath$FileCallableWrapper.call(FilePath.java:3088)
	at hudson.remoting.UserRequest.perform(UserRequest.java:212)
	at hudson.remoting.UserRequest.perform(UserRequest.java:54)
	at hudson.remoting.Request$2.run(Request.java:369)
	at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:72)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:748)
Caused: java.lang.InterruptedException: java.lang.InterruptedException: no matches found within 10000
	at hudson.FilePath.act(FilePath.java:1074)
	at hudson.FilePath.act(FilePath.java:1061)
	at hudson.FilePath.validateAntFileMask(FilePath.java:2705)
	at hudson.tasks.ArtifactArchiver.perform(ArtifactArchiver.java:243)
	at hudson.tasks.BuildStepCompatibilityLayer.perform(BuildStepCompatibilityLayer.java:81)
	at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:20)
	at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:744)
	at hudson.model.AbstractBuild$AbstractBuildExecution.performAllBuildSteps(AbstractBuild.java:690)
	at hudson.model.Build$BuildExecution.post2(Build.java:186)
	at hudson.model.AbstractBuild$AbstractBuildExecution.post(AbstractBuild.java:635)
	at hudson.model.Run.execute(Run.java:1835)
	at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
	at hudson.model.ResourceController.execute(ResourceController.java:97)
	at hudson.model.Executor.run(Executor.java:429)
No artifacts found that match the file pattern "**/*.events,heapdumps/**,**/hs_err_pid*". Configuration error?
Recording test results
Build step 'Publish JUnit test result report' changed build result to UNSTABLE
Email was triggered for: Unstable (Test Failures)
Sending email for trigger: Unstable (Test Failures)

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