Build: https://ci-builds.apache.org/job/Lucene/job/Lucene-Solr-Tests-8.10/321/

3 tests failed.
FAILED:  org.apache.solr.cloud.ZkFailoverTest.testRestartZkWhenClusterDown

Error Message:
No live SolrServers available to handle this 
request:[https://127.0.0.1:42575/solr/coll1]

Stack Trace:
org.apache.solr.client.solrj.SolrServerException: No live SolrServers available 
to handle this request:[https://127.0.0.1:42575/solr/coll1]
        at 
__randomizedtesting.SeedInfo.seed([529A99DA1986718D:3C0D1A966061D70E]:0)
        at 
org.apache.solr.client.solrj.impl.LBSolrClient.request(LBSolrClient.java:346)
        at 
org.apache.solr.client.solrj.impl.BaseCloudSolrClient.sendRequest(BaseCloudSolrClient.java:1171)
        at 
org.apache.solr.client.solrj.impl.BaseCloudSolrClient.requestWithRetryOnStaleState(BaseCloudSolrClient.java:934)
        at 
org.apache.solr.client.solrj.impl.BaseCloudSolrClient.request(BaseCloudSolrClient.java:866)
        at 
org.apache.solr.client.solrj.SolrRequest.process(SolrRequest.java:214)
        at 
org.apache.solr.cloud.ZkFailoverTest.testRestartZkWhenClusterDown(ZkFailoverTest.java:64)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1750)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$8.evaluate(RandomizedRunner.java:938)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$9.evaluate(RandomizedRunner.java:974)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$10.evaluate(RandomizedRunner.java:988)
        at 
com.carrotsearch.randomizedtesting.rules.SystemPropertiesRestoreRule$1.evaluate(SystemPropertiesRestoreRule.java:57)
        at org.junit.rules.RunRules.evaluate(RunRules.java:20)
        at 
org.apache.lucene.util.TestRuleSetupTeardownChained$1.evaluate(TestRuleSetupTeardownChained.java:49)
        at 
org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:45)
        at 
org.apache.lucene.util.TestRuleThreadAndTestName$1.evaluate(TestRuleThreadAndTestName.java:48)
        at 
org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:64)
        at 
org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:47)
        at org.junit.rules.RunRules.evaluate(RunRules.java:20)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:368)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl.forkTimeoutingTask(ThreadLeakControl.java:817)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$3.evaluate(ThreadLeakControl.java:468)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner.runSingleTest(RandomizedRunner.java:947)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$5.evaluate(RandomizedRunner.java:832)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$6.evaluate(RandomizedRunner.java:883)
        at 
com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:894)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.rules.SystemPropertiesRestoreRule$1.evaluate(SystemPropertiesRestoreRule.java:57)
        at org.junit.rules.RunRules.evaluate(RunRules.java:20)
        at 
org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:45)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
org.apache.lucene.util.TestRuleStoreClassName$1.evaluate(TestRuleStoreClassName.java:41)
        at 
com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
        at 
com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
org.apache.lucene.util.TestRuleAssertionsRequired$1.evaluate(TestRuleAssertionsRequired.java:53)
        at 
org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:47)
        at 
org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:64)
        at 
org.apache.lucene.util.TestRuleIgnoreTestSuites$1.evaluate(TestRuleIgnoreTestSuites.java:54)
        at org.junit.rules.RunRules.evaluate(RunRules.java:20)
        at 
com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
        at 
com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:368)
        at java.lang.Thread.run(Thread.java:748)
Caused by: 
org.apache.solr.client.solrj.impl.HttpSolrClient$RemoteSolrException: Error 
from server at https://127.0.0.1:42575/solr/coll1: no servers hosting shard: 
shard1
        at 
org.apache.solr.client.solrj.impl.HttpSolrClient.executeMethod(HttpSolrClient.java:681)
        at 
org.apache.solr.client.solrj.impl.HttpSolrClient.request(HttpSolrClient.java:266)
        at 
org.apache.solr.client.solrj.impl.HttpSolrClient.request(HttpSolrClient.java:248)
        at 
org.apache.solr.client.solrj.impl.LBSolrClient.doRequest(LBSolrClient.java:369)
        at 
org.apache.solr.client.solrj.impl.LBSolrClient.request(LBSolrClient.java:297)
        ... 48 more


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

Error Message:
16 threads leaked from SUITE scope at org.apache.solr.cloud.ZkFailoverTest:     
1) Thread[id=5857, name=NIOWorkerThread-8, state=WAITING, 
group=TGRP-ZkFailoverTest]         at sun.misc.Unsafe.park(Native Method)       
  at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)         
at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
         at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)     
    at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)   
      at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134) 
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) 
        at java.lang.Thread.run(Thread.java:748)    2) Thread[id=5855, 
name=NIOWorkerThread-6, state=WAITING, group=TGRP-ZkFailoverTest]         at 
sun.misc.Unsafe.park(Native Method)         at 
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)         at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
         at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)     
    at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)   
      at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134) 
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) 
        at java.lang.Thread.run(Thread.java:748)    3) Thread[id=5853, 
name=NIOWorkerThread-5, state=WAITING, group=TGRP-ZkFailoverTest]         at 
sun.misc.Unsafe.park(Native Method)         at 
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)         at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
         at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)     
    at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)   
      at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134) 
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) 
        at java.lang.Thread.run(Thread.java:748)    4) Thread[id=5838, 
name=NIOServerCxnFactory.SelectorThread-0, state=RUNNABLE, 
group=TGRP-ZkFailoverTest]         at 
sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)         at 
sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)         at 
sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:93)         at 
sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)         at 
sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)         at 
sun.nio.ch.SelectorImpl.select(SelectorImpl.java:101)         at 
org.apache.zookeeper.server.NIOServerCnxnFactory$SelectorThread.select(NIOServerCnxnFactory.java:417)
         at 
org.apache.zookeeper.server.NIOServerCnxnFactory$SelectorThread.run(NIOServerCnxnFactory.java:382)
    5) Thread[id=5843, name=RequestThrottler, state=WAITING, 
group=TGRP-ZkFailoverTest]         at sun.misc.Unsafe.park(Native Method)       
  at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)         
at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
         at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)     
    at 
org.apache.zookeeper.server.RequestThrottler.run(RequestThrottler.java:139)    
6) Thread[id=5852, name=NIOWorkerThread-4, state=WAITING, 
group=TGRP-ZkFailoverTest]         at sun.misc.Unsafe.park(Native Method)       
  at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)         
at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
         at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)     
    at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)   
      at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134) 
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) 
        at java.lang.Thread.run(Thread.java:748)    7) Thread[id=5841, 
name=SyncThread:0, state=WAITING, group=TGRP-ZkFailoverTest]         at 
sun.misc.Unsafe.park(Native Method)         at 
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)         at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
         at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)     
    at 
org.apache.zookeeper.server.SyncRequestProcessor.run(SyncRequestProcessor.java:170)
    8) Thread[id=5840, name=SessionTracker, state=TIMED_WAITING, 
group=TGRP-ZkFailoverTest]         at java.lang.Thread.sleep(Native Method)     
    at 
org.apache.zookeeper.server.SessionTrackerImpl.run(SessionTrackerImpl.java:157) 
   9) Thread[id=5836, name=ZkTestServer Run Thread, state=WAITING, 
group=TGRP-ZkFailoverTest]         at java.lang.Object.wait(Native Method)      
   at java.lang.Thread.join(Thread.java:1252)         at 
java.lang.Thread.join(Thread.java:1326)         at 
org.apache.zookeeper.server.NIOServerCnxnFactory.join(NIOServerCnxnFactory.java:929)
         at 
org.apache.solr.cloud.ZkTestServer$ZKServerMain.runFromConfig(ZkTestServer.java:349)
         at org.apache.solr.cloud.ZkTestServer$2.run(ZkTestServer.java:580)   
10) Thread[id=5848, name=NIOWorkerThread-3, state=WAITING, 
group=TGRP-ZkFailoverTest]         at sun.misc.Unsafe.park(Native Method)       
  at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)         
at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
         at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)     
    at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)   
      at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134) 
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) 
        at java.lang.Thread.run(Thread.java:748)   11) Thread[id=5856, 
name=NIOWorkerThread-7, state=WAITING, group=TGRP-ZkFailoverTest]         at 
sun.misc.Unsafe.park(Native Method)         at 
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)         at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
         at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)     
    at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)   
      at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134) 
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) 
        at java.lang.Thread.run(Thread.java:748)   12) Thread[id=5839, 
name=NIOServerCxnFactory.AcceptThread:0.0.0.0/0.0.0.0:35691, state=RUNNABLE, 
group=TGRP-ZkFailoverTest]         at 
sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)         at 
sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)         at 
sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:93)         at 
sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)         at 
sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)         at 
sun.nio.ch.SelectorImpl.select(SelectorImpl.java:101)         at 
org.apache.zookeeper.server.NIOServerCnxnFactory$AcceptThread.select(NIOServerCnxnFactory.java:219)
         at 
org.apache.zookeeper.server.NIOServerCnxnFactory$AcceptThread.run(NIOServerCnxnFactory.java:195)
   13) Thread[id=5837, name=ConnnectionExpirer, state=TIMED_WAITING, 
group=TGRP-ZkFailoverTest]         at java.lang.Thread.sleep(Native Method)     
    at 
org.apache.zookeeper.server.NIOServerCnxnFactory$ConnectionExpirerThread.run(NIOServerCnxnFactory.java:568)
   14) Thread[id=5844, name=NIOWorkerThread-1, state=WAITING, 
group=TGRP-ZkFailoverTest]         at sun.misc.Unsafe.park(Native Method)       
  at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)         
at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
         at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)     
    at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)   
      at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134) 
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) 
        at java.lang.Thread.run(Thread.java:748)   15) Thread[id=5842, 
name=ProcessThread(sid:0 cport:35691):, state=WAITING, 
group=TGRP-ZkFailoverTest]         at sun.misc.Unsafe.park(Native Method)       
  at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)         
at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
         at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)     
    at 
org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.java:140)
   16) Thread[id=5847, name=NIOWorkerThread-2, state=WAITING, 
group=TGRP-ZkFailoverTest]         at sun.misc.Unsafe.park(Native Method)       
  at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)         
at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
         at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)     
    at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)   
      at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134) 
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) 
        at java.lang.Thread.run(Thread.java:748)

Stack Trace:
com.carrotsearch.randomizedtesting.ThreadLeakError: 16 threads leaked from 
SUITE scope at org.apache.solr.cloud.ZkFailoverTest: 
   1) Thread[id=5857, name=NIOWorkerThread-8, state=WAITING, 
group=TGRP-ZkFailoverTest]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
        at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
        at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
        at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
   2) Thread[id=5855, name=NIOWorkerThread-6, state=WAITING, 
group=TGRP-ZkFailoverTest]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
        at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
        at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
        at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
   3) Thread[id=5853, name=NIOWorkerThread-5, state=WAITING, 
group=TGRP-ZkFailoverTest]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
        at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
        at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
        at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
   4) Thread[id=5838, name=NIOServerCxnFactory.SelectorThread-0, 
state=RUNNABLE, group=TGRP-ZkFailoverTest]
        at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
        at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
        at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:93)
        at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)
        at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
        at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:101)
        at 
org.apache.zookeeper.server.NIOServerCnxnFactory$SelectorThread.select(NIOServerCnxnFactory.java:417)
        at 
org.apache.zookeeper.server.NIOServerCnxnFactory$SelectorThread.run(NIOServerCnxnFactory.java:382)
   5) Thread[id=5843, name=RequestThrottler, state=WAITING, 
group=TGRP-ZkFailoverTest]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
        at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
        at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
        at 
org.apache.zookeeper.server.RequestThrottler.run(RequestThrottler.java:139)
   6) Thread[id=5852, name=NIOWorkerThread-4, state=WAITING, 
group=TGRP-ZkFailoverTest]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
        at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
        at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
        at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
   7) Thread[id=5841, name=SyncThread:0, state=WAITING, 
group=TGRP-ZkFailoverTest]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
        at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
        at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
        at 
org.apache.zookeeper.server.SyncRequestProcessor.run(SyncRequestProcessor.java:170)
   8) Thread[id=5840, name=SessionTracker, state=TIMED_WAITING, 
group=TGRP-ZkFailoverTest]
        at java.lang.Thread.sleep(Native Method)
        at 
org.apache.zookeeper.server.SessionTrackerImpl.run(SessionTrackerImpl.java:157)
   9) Thread[id=5836, name=ZkTestServer Run Thread, state=WAITING, 
group=TGRP-ZkFailoverTest]
        at java.lang.Object.wait(Native Method)
        at java.lang.Thread.join(Thread.java:1252)
        at java.lang.Thread.join(Thread.java:1326)
        at 
org.apache.zookeeper.server.NIOServerCnxnFactory.join(NIOServerCnxnFactory.java:929)
        at 
org.apache.solr.cloud.ZkTestServer$ZKServerMain.runFromConfig(ZkTestServer.java:349)
        at org.apache.solr.cloud.ZkTestServer$2.run(ZkTestServer.java:580)
  10) Thread[id=5848, name=NIOWorkerThread-3, state=WAITING, 
group=TGRP-ZkFailoverTest]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
        at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
        at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
        at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
  11) Thread[id=5856, name=NIOWorkerThread-7, state=WAITING, 
group=TGRP-ZkFailoverTest]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
        at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
        at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
        at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
  12) Thread[id=5839, 
name=NIOServerCxnFactory.AcceptThread:0.0.0.0/0.0.0.0:35691, state=RUNNABLE, 
group=TGRP-ZkFailoverTest]
        at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
        at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
        at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:93)
        at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)
        at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
        at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:101)
        at 
org.apache.zookeeper.server.NIOServerCnxnFactory$AcceptThread.select(NIOServerCnxnFactory.java:219)
        at 
org.apache.zookeeper.server.NIOServerCnxnFactory$AcceptThread.run(NIOServerCnxnFactory.java:195)
  13) Thread[id=5837, name=ConnnectionExpirer, state=TIMED_WAITING, 
group=TGRP-ZkFailoverTest]
        at java.lang.Thread.sleep(Native Method)
        at 
org.apache.zookeeper.server.NIOServerCnxnFactory$ConnectionExpirerThread.run(NIOServerCnxnFactory.java:568)
  14) Thread[id=5844, name=NIOWorkerThread-1, state=WAITING, 
group=TGRP-ZkFailoverTest]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
        at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
        at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
        at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
  15) Thread[id=5842, name=ProcessThread(sid:0 cport:35691):, state=WAITING, 
group=TGRP-ZkFailoverTest]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
        at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
        at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
        at 
org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.java:140)
  16) Thread[id=5847, name=NIOWorkerThread-2, state=WAITING, 
group=TGRP-ZkFailoverTest]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
        at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
        at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
        at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
        at __randomizedtesting.SeedInfo.seed([529A99DA1986718D]:0)


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

Error Message:
There are still zombie threads that couldn't be terminated:    1) 
Thread[id=5857, name=NIOWorkerThread-8, state=WAITING, 
group=TGRP-ZkFailoverTest]         at sun.misc.Unsafe.park(Native Method)       
  at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)         
at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
         at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)     
    at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)   
      at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134) 
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) 
        at java.lang.Thread.run(Thread.java:748)    2) Thread[id=5855, 
name=NIOWorkerThread-6, state=WAITING, group=TGRP-ZkFailoverTest]         at 
sun.misc.Unsafe.park(Native Method)         at 
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)         at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
         at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)     
    at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)   
      at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134) 
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) 
        at java.lang.Thread.run(Thread.java:748)    3) Thread[id=5848, 
name=NIOWorkerThread-3, state=WAITING, group=TGRP-ZkFailoverTest]         at 
sun.misc.Unsafe.park(Native Method)         at 
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)         at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
         at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)     
    at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)   
      at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134) 
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) 
        at java.lang.Thread.run(Thread.java:748)    4) Thread[id=5853, 
name=NIOWorkerThread-5, state=WAITING, group=TGRP-ZkFailoverTest]         at 
sun.misc.Unsafe.park(Native Method)         at 
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)         at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
         at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)     
    at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)   
      at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134) 
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) 
        at java.lang.Thread.run(Thread.java:748)    5) Thread[id=5856, 
name=NIOWorkerThread-7, state=WAITING, group=TGRP-ZkFailoverTest]         at 
sun.misc.Unsafe.park(Native Method)         at 
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)         at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
         at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)     
    at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)   
      at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134) 
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) 
        at java.lang.Thread.run(Thread.java:748)    6) Thread[id=5838, 
name=NIOServerCxnFactory.SelectorThread-0, state=RUNNABLE, 
group=TGRP-ZkFailoverTest]         at 
sun.nio.ch.EPollArrayWrapper.interrupt(Native Method)         at 
sun.nio.ch.EPollArrayWrapper.interrupt(EPollArrayWrapper.java:317)         at 
sun.nio.ch.EPollSelectorImpl.wakeup(EPollSelectorImpl.java:207)         at 
java.nio.channels.spi.AbstractSelector$1.interrupt(AbstractSelector.java:213)   
      at 
java.nio.channels.spi.AbstractSelector.begin(AbstractSelector.java:219)         
at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:92)         at 
sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)         at 
sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)         at 
sun.nio.ch.SelectorImpl.select(SelectorImpl.java:101)         at 
org.apache.zookeeper.server.NIOServerCnxnFactory$SelectorThread.select(NIOServerCnxnFactory.java:417)
         at 
org.apache.zookeeper.server.NIOServerCnxnFactory$SelectorThread.run(NIOServerCnxnFactory.java:382)
    7) Thread[id=5839, 
name=NIOServerCxnFactory.AcceptThread:0.0.0.0/0.0.0.0:35691, state=RUNNABLE, 
group=TGRP-ZkFailoverTest]         at 
sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)         at 
sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)         at 
sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:93)         at 
sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)         at 
sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)         at 
sun.nio.ch.SelectorImpl.select(SelectorImpl.java:101)         at 
org.apache.zookeeper.server.NIOServerCnxnFactory$AcceptThread.select(NIOServerCnxnFactory.java:219)
         at 
org.apache.zookeeper.server.NIOServerCnxnFactory$AcceptThread.run(NIOServerCnxnFactory.java:195)
    8) Thread[id=5852, name=NIOWorkerThread-4, state=WAITING, 
group=TGRP-ZkFailoverTest]         at sun.misc.Unsafe.park(Native Method)       
  at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)         
at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
         at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)     
    at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)   
      at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134) 
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) 
        at java.lang.Thread.run(Thread.java:748)    9) Thread[id=5844, 
name=NIOWorkerThread-1, state=WAITING, group=TGRP-ZkFailoverTest]         at 
sun.misc.Unsafe.park(Native Method)         at 
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)         at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
         at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)     
    at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)   
      at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134) 
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) 
        at java.lang.Thread.run(Thread.java:748)   10) Thread[id=5847, 
name=NIOWorkerThread-2, state=WAITING, group=TGRP-ZkFailoverTest]         at 
sun.misc.Unsafe.park(Native Method)         at 
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)         at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
         at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)     
    at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)   
      at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134) 
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) 
        at java.lang.Thread.run(Thread.java:748)

Stack Trace:
com.carrotsearch.randomizedtesting.ThreadLeakError: There are still zombie 
threads that couldn't be terminated:
   1) Thread[id=5857, name=NIOWorkerThread-8, state=WAITING, 
group=TGRP-ZkFailoverTest]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
        at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
        at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
        at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
   2) Thread[id=5855, name=NIOWorkerThread-6, state=WAITING, 
group=TGRP-ZkFailoverTest]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
        at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
        at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
        at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
   3) Thread[id=5848, name=NIOWorkerThread-3, state=WAITING, 
group=TGRP-ZkFailoverTest]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
        at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
        at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
        at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
   4) Thread[id=5853, name=NIOWorkerThread-5, state=WAITING, 
group=TGRP-ZkFailoverTest]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
        at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
        at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
        at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
   5) Thread[id=5856, name=NIOWorkerThread-7, state=WAITING, 
group=TGRP-ZkFailoverTest]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
        at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
        at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
        at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
   6) Thread[id=5838, name=NIOServerCxnFactory.SelectorThread-0, 
state=RUNNABLE, group=TGRP-ZkFailoverTest]
        at sun.nio.ch.EPollArrayWrapper.interrupt(Native Method)
        at sun.nio.ch.EPollArrayWrapper.interrupt(EPollArrayWrapper.java:317)
        at sun.nio.ch.EPollSelectorImpl.wakeup(EPollSelectorImpl.java:207)
        at 
java.nio.channels.spi.AbstractSelector$1.interrupt(AbstractSelector.java:213)
        at 
java.nio.channels.spi.AbstractSelector.begin(AbstractSelector.java:219)
        at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:92)
        at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)
        at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
        at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:101)
        at 
org.apache.zookeeper.server.NIOServerCnxnFactory$SelectorThread.select(NIOServerCnxnFactory.java:417)
        at 
org.apache.zookeeper.server.NIOServerCnxnFactory$SelectorThread.run(NIOServerCnxnFactory.java:382)
   7) Thread[id=5839, 
name=NIOServerCxnFactory.AcceptThread:0.0.0.0/0.0.0.0:35691, state=RUNNABLE, 
group=TGRP-ZkFailoverTest]
        at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
        at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
        at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:93)
        at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)
        at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
        at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:101)
        at 
org.apache.zookeeper.server.NIOServerCnxnFactory$AcceptThread.select(NIOServerCnxnFactory.java:219)
        at 
org.apache.zookeeper.server.NIOServerCnxnFactory$AcceptThread.run(NIOServerCnxnFactory.java:195)
   8) Thread[id=5852, name=NIOWorkerThread-4, state=WAITING, 
group=TGRP-ZkFailoverTest]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
        at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
        at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
        at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
   9) Thread[id=5844, name=NIOWorkerThread-1, state=WAITING, 
group=TGRP-ZkFailoverTest]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
        at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
        at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
        at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
  10) Thread[id=5847, name=NIOWorkerThread-2, state=WAITING, 
group=TGRP-ZkFailoverTest]
        at sun.misc.Unsafe.park(Native Method)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
        at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
        at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
        at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
        at __randomizedtesting.SeedInfo.seed([529A99DA1986718D]:0)




Build Log:
[...truncated 13872 lines...]
   [junit4] Suite: org.apache.solr.cloud.ZkFailoverTest
   [junit4]   2> 342252 INFO  
(SUITE-ZkFailoverTest-seed#[529A99DA1986718D]-worker) [     ] 
o.a.s.SolrTestCase Setting 'solr.default.confdir' system property to 
test-framework derived value of 
'/home/jenkins/jenkins-slave/workspace/Lucene/Lucene-Solr-Tests-8.10/solr/server/solr/configsets/_default/conf'
   [junit4]   2> 342252 INFO  
(SUITE-ZkFailoverTest-seed#[529A99DA1986718D]-worker) [     ] 
o.a.s.SolrTestCaseJ4 Created dataDir: 
/home/jenkins/jenkins-slave/workspace/Lucene/Lucene-Solr-Tests-8.10/solr/build/solr-core/test/J1/temp/solr.cloud.ZkFailoverTest_529A99DA1986718D-001/data-dir-40-001
   [junit4]   2> 342252 WARN  
(SUITE-ZkFailoverTest-seed#[529A99DA1986718D]-worker) [     ] 
o.a.s.SolrTestCaseJ4 startTrackingSearchers: numOpens=16 numCloses=16
   [junit4]   2> 342252 INFO  
(SUITE-ZkFailoverTest-seed#[529A99DA1986718D]-worker) [     ] 
o.a.s.SolrTestCaseJ4 Using TrieFields (NUMERIC_POINTS_SYSPROP=false) 
w/NUMERIC_DOCVALUES_SYSPROP=true
   [junit4]   2> 342255 INFO  
(SUITE-ZkFailoverTest-seed#[529A99DA1986718D]-worker) [     ] 
o.a.s.SolrTestCaseJ4 Randomized ssl (true) and clientAuth (false) via: 
@org.apache.solr.util.RandomizeSSL(reason=, ssl=NaN, value=NaN, clientAuth=NaN)
   [junit4]   2> 342255 INFO  
(SUITE-ZkFailoverTest-seed#[529A99DA1986718D]-worker) [     ] 
o.a.s.SolrTestCaseJ4 SecureRandom sanity checks: 
test.solr.allowed.securerandom=null & java.security.egd=file:/dev/./urandom
   [junit4]   2> 342256 INFO  
(SUITE-ZkFailoverTest-seed#[529A99DA1986718D]-worker) [     ] 
o.a.s.c.MiniSolrCloudCluster Starting cluster of 2 servers in 
/home/jenkins/jenkins-slave/workspace/Lucene/Lucene-Solr-Tests-8.10/solr/build/solr-core/test/J1/temp/solr.cloud.ZkFailoverTest_529A99DA1986718D-001/tempDir-001
   [junit4]   2> 342256 INFO  
(SUITE-ZkFailoverTest-seed#[529A99DA1986718D]-worker) [     ] 
o.a.s.c.ZkTestServer STARTING ZK TEST SERVER
   [junit4]   2> 342256 INFO  (ZkTestServer Run Thread) [     ] 
o.a.s.c.ZkTestServer client port: 0.0.0.0/0.0.0.0:0
   [junit4]   2> 342256 INFO  (ZkTestServer Run Thread) [     ] 
o.a.s.c.ZkTestServer Starting server
   [junit4]   2> 342257 WARN  (ZkTestServer Run Thread) [     ] 
o.a.z.s.ServerCnxnFactory maxCnxns is not configured, using default value 0.
   [junit4]   2> 342356 INFO  
(SUITE-ZkFailoverTest-seed#[529A99DA1986718D]-worker) [     ] 
o.a.s.c.ZkTestServer start zk server on port: 35691
   [junit4]   2> 342356 INFO  
(SUITE-ZkFailoverTest-seed#[529A99DA1986718D]-worker) [     ] 
o.a.s.c.ZkTestServer waitForServerUp: 127.0.0.1:35691
   [junit4]   2> 342356 INFO  
(SUITE-ZkFailoverTest-seed#[529A99DA1986718D]-worker) [     ] 
o.a.s.c.ZkTestServer parse host and port list: 127.0.0.1:35691
   [junit4]   2> 342356 INFO  
(SUITE-ZkFailoverTest-seed#[529A99DA1986718D]-worker) [     ] 
o.a.s.c.ZkTestServer connecting to 127.0.0.1 35691
   [junit4]   2> 342358 INFO  
(SUITE-ZkFailoverTest-seed#[529A99DA1986718D]-worker) [     ] 
o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 342360 INFO  (zkConnectionManagerCallback-3433-thread-1) [     
] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 342360 INFO  
(SUITE-ZkFailoverTest-seed#[529A99DA1986718D]-worker) [     ] 
o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 342362 INFO  
(SUITE-ZkFailoverTest-seed#[529A99DA1986718D]-worker) [     ] 
o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 342363 INFO  (zkConnectionManagerCallback-3435-thread-1) [     
] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 342363 INFO  
(SUITE-ZkFailoverTest-seed#[529A99DA1986718D]-worker) [     ] 
o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
   [junit4]   2> 342364 INFO  
(SUITE-ZkFailoverTest-seed#[529A99DA1986718D]-worker) [     ] 
o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
   [junit4]   2> 342364 INFO  (zkConnectionManagerCallback-3437-thread-1) [     
] o.a.s.c.c.ConnectionManager zkClient has connected
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o.e.j.s.Server jetty-9.4.44.v20210927; built: 2021-09-27T23:02:44.612Z; git: 
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o.e.j.s.Server jetty-9.4.44.v20210927; built: 2021-09-27T23:02:44.612Z; git: 
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zkHost=127.0.0.1:35691/solr, hostPort=36603}
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o.a.s.s.SolrDispatchFilter  ___      _       Welcome to Apache Solr™ version 
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o.a.z.ClientCnxn An exception was thrown while closing send thread for session 
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to read additional data from server sessionid 0x108973210fb0004, likely server 
has closed socket
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org.apache.zookeeper.ClientCnxnSocketNIO.doIO(ClientCnxnSocketNIO.java:77) 
~[zookeeper-3.6.2.jar:3.6.2]
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 ~[zookeeper-3.6.2.jar:3.6.2]
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[zookeeper-3.6.2.jar:3.6.2]
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o.a.z.ClientCnxn An exception was thrown while closing send thread for session 
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data from server sessionid 0x108973210fb0003, likely server has closed socket
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org.apache.zookeeper.ClientCnxnSocketNIO.doIO(ClientCnxnSocketNIO.java:77)
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to read additional data from server sessionid 0x108973210fb0003, likely server 
has closed socket
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[zookeeper-3.6.2.jar:3.6.2]
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o.a.s.c.s.i.Http2SolrClient Create Http2SolrClient with HTTP/1.1 transport 
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[n:127.0.0.1:42575_solr     ] o.a.s.c.c.ConnectionManager Waiting for client to 
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[n:127.0.0.1:42575_solr     ] o.a.s.c.c.ConnectionManager Client is connected 
to ZooKeeper
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[n:127.0.0.1:42575_solr     ] o.a.s.c.ZkController Contents of zookeeper 
/security.json are world-readable; consider setting up ACLs as described in 
https://solr.apache.org/guide/zookeeper-access-control.html
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[n:127.0.0.1:42575_solr     ] o.a.s.c.OverseerElectionContext I am going to be 
the leader 127.0.0.1:42575_solr
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[n:127.0.0.1:42575_solr     ] o.a.s.c.Overseer Overseer 
(id=74475635140657158-127.0.0.1:42575_solr-n_0000000000) starting
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queue : 127.0.0.1:42575_solr
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[n:127.0.0.1:42575_solr     ] o.a.s.c.ZkController Register node as live in 
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[n:127.0.0.1:42575_solr     ] o.a.s.p.PackageLoader /packages.json updated to 
version -1
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[n:127.0.0.1:42575_solr     ] o.a.s.c.CoreContainer Not all security plugins 
configured!  authentication=disabled authorization=disabled.  Solr is only as 
secure as you make it. Consider configuring authentication/authorization before 
exposing Solr to users internal or external.  See 
https://s.apache.org/solrsecurity for more info
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[n:127.0.0.1:42575_solr     ] o.a.s.c.CorePropertiesLocator Found 0 core 
definitions underneath 
/home/jenkins/jenkins-slave/workspace/Lucene/Lucene-Solr-Tests-8.10/solr/build/solr-core/test/J1/temp/solr.cloud.ZkFailoverTest_529A99DA1986718D-001/tempDir-001/node1
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o.a.s.h.c.HttpShardHandlerFactory Host whitelist initialized: 
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o.a.s.c.s.i.Http2SolrClient Create Http2SolrClient with HTTP/1.1 transport 
since Java 8 or lower versions does not support SSL + HTTP/2
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o.e.j.u.s.S.config Trusting all certificates configured for 
Client@6568c154[provider=null,keyStore=null,trustStore=null]
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o.e.j.u.s.S.config No Client EndPointIdentificationAlgorithm configured for 
Client@6568c154[provider=null,keyStore=null,trustStore=null]
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o.a.s.c.s.i.Http2SolrClient Create Http2SolrClient with HTTP/1.1 transport 
since Java 8 or lower versions does not support SSL + HTTP/2
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o.e.j.u.s.S.config Trusting all certificates configured for 
Client@3c17dfe1[provider=null,keyStore=null,trustStore=null]
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o.e.j.u.s.S.config No Client EndPointIdentificationAlgorithm configured for 
Client@3c17dfe1[provider=null,keyStore=null,trustStore=null]
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o.a.s.c.ZkContainer Zookeeper client=127.0.0.1:35691/solr
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] o.a.s.c.c.ConnectionManager zkClient has connected
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o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
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(jetty-launcher-3438-thread-2-SendThread(127.0.0.1:35691)) [     ] 
o.a.z.ClientCnxn An exception was thrown while closing send thread for session 
0x108973210fb0007.
   [junit4]   2>           => EndOfStreamException: Unable to read additional 
data from server sessionid 0x108973210fb0007, likely server has closed socket
   [junit4]   2>        at 
org.apache.zookeeper.ClientCnxnSocketNIO.doIO(ClientCnxnSocketNIO.java:77)
   [junit4]   2> org.apache.zookeeper.ClientCnxn$EndOfStreamException: Unable 
to read additional data from server sessionid 0x108973210fb0007, likely server 
has closed socket
   [junit4]   2>        at 
org.apache.zookeeper.ClientCnxnSocketNIO.doIO(ClientCnxnSocketNIO.java:77) 
~[zookeeper-3.6.2.jar:3.6.2]
   [junit4]   2>        at 
org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
 ~[zookeeper-3.6.2.jar:3.6.2]
   [junit4]   2>        at 
org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1275) 
[zookeeper-3.6.2.jar:3.6.2]
   [junit4]   2> 343901 INFO  (jetty-launcher-3438-thread-2) 
[n:127.0.0.1:36603_solr     ] o.a.s.c.c.ConnectionManager Waiting for client to 
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] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 343902 INFO  (jetty-launcher-3438-thread-2) 
[n:127.0.0.1:36603_solr     ] o.a.s.c.c.ConnectionManager Client is connected 
to ZooKeeper
   [junit4]   2> 343906 WARN  (jetty-launcher-3438-thread-2) 
[n:127.0.0.1:36603_solr     ] o.a.s.c.ZkController Contents of zookeeper 
/security.json are world-readable; consider setting up ACLs as described in 
https://solr.apache.org/guide/zookeeper-access-control.html
   [junit4]   2> 343906 INFO  (jetty-launcher-3438-thread-2) 
[n:127.0.0.1:36603_solr     ] o.a.s.c.c.ZkStateReader Updated live nodes from 
ZooKeeper... (0) -> (1)
   [junit4]   2> 343909 INFO  (jetty-launcher-3438-thread-2) 
[n:127.0.0.1:36603_solr     ] o.a.s.c.ZkController Publish 
node=127.0.0.1:36603_solr as DOWN
   [junit4]   2> 343910 INFO  (jetty-launcher-3438-thread-2) 
[n:127.0.0.1:36603_solr     ] o.a.s.c.TransientSolrCoreCacheDefault Allocating 
transient core cache for max 2147483647 cores with initial capacity of 1024
   [junit4]   2> 343910 INFO  (jetty-launcher-3438-thread-2) 
[n:127.0.0.1:36603_solr     ] o.a.s.c.ZkController Register node as live in 
ZooKeeper:/live_nodes/127.0.0.1:36603_solr
   [junit4]   2> 343911 INFO  (zkCallback-3457-thread-1) [     ] 
o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (2)
   [junit4]   2> 343912 INFO  (jetty-launcher-3438-thread-2) 
[n:127.0.0.1:36603_solr     ] o.a.s.p.PackageLoader /packages.json updated to 
version -1
   [junit4]   2> 343913 WARN  (jetty-launcher-3438-thread-2) 
[n:127.0.0.1:36603_solr     ] o.a.s.c.CoreContainer Not all security plugins 
configured!  authentication=disabled authorization=disabled.  Solr is only as 
secure as you make it. Consider configuring authentication/authorization before 
exposing Solr to users internal or external.  See 
https://s.apache.org/solrsecurity for more info
   [junit4]   2> 343917 INFO  (zkCallback-3477-thread-1) [     ] 
o.a.s.c.c.ZkStateReader Updated live nodes from ZooKeeper... (1) -> (2)
   [junit4]   2> 343939 INFO  (jetty-launcher-3438-thread-2) 
[n:127.0.0.1:36603_solr     ] o.a.s.c.CorePropertiesLocator Found 0 core 
definitions underneath 
/home/jenkins/jenkins-slave/workspace/Lucene/Lucene-Solr-Tests-8.10/solr/build/solr-core/test/J1/temp/solr.cloud.ZkFailoverTest_529A99DA1986718D-001/tempDir-001/node2
   [junit4]   2> 343948 INFO  
(SUITE-ZkFailoverTest-seed#[529A99DA1986718D]-worker) [     ] 
o.a.s.c.MiniSolrCloudCluster waitForAllNodes: numServers=2
   [junit4]   2> 343949 INFO  
(SUITE-ZkFailoverTest-seed#[529A99DA1986718D]-worker) [     ] 
o.a.s.c.c.ConnectionManager Waiting for client to connect to ZooKeeper
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] o.a.s.c.c.ConnectionManager zkClient has connected
   [junit4]   2> 343953 INFO  
(SUITE-ZkFailoverTest-seed#[529A99DA1986718D]-worker) [     ] 
o.a.s.c.c.ConnectionManager Client is connected to ZooKeeper
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[n:127.0.0.1:42575_solr     ] o.a.s.c.a.c.CreateCollectionCmd Create collection 
coll1
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(OverseerStateUpdate-74475635140657158-127.0.0.1:42575_solr-n_0000000000) 
[n:127.0.0.1:42575_solr     ] o.a.s.c.o.SliceMutator createReplica() {
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(OverseerStateUpdate-74475635140657158-127.0.0.1:42575_solr-n_0000000000) 
[n:127.0.0.1:42575_solr     ] o.a.s.c.o.SliceMutator createReplica() {
   [junit4]   2>   "core":"coll1_shard2_replica_n2",
   [junit4]   2>   "node_name":"127.0.0.1:42575_solr",
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x:coll1_shard1_replica_n1 ] o.a.s.h.a.CoreAdminOperation core create command 
qt=/admin/cores&coreNodeName=core_node3&collection.configName=coll1.AUTOCREATED&newCollection=true&name=coll1_shard1_replica_n1&action=CREATE&numShards=2&collection=coll1&shard=shard1&wt=javabin&version=2&replicaType=NRT
   [junit4]   2> 344402 INFO  (qtp1235554837-5646) [n:127.0.0.1:36603_solr 
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Using Lucene MatchVersion: 8.10.2
   [junit4]   2> 344403 WARN  (qtp1235554837-5646) [n:127.0.0.1:36603_solr 
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solrconfig.xml: <jmx> is no longer supported, use solr.xml:/metrics/reporter 
section instead
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Schema name=default-config
   [junit4]   2> 344411 INFO  (qtp1938280261-5650) [n:127.0.0.1:42575_solr    
x:coll1_shard2_replica_n2 ] o.a.s.h.a.CoreAdminOperation core create command 
qt=/admin/cores&coreNodeName=core_node4&collection.configName=coll1.AUTOCREATED&newCollection=true&name=coll1_shard2_replica_n2&action=CREATE&numShards=2&collection=coll1&shard=shard2&wt=javabin&version=2&replicaType=NRT
   [junit4]   2> 344411 INFO  (qtp1938280261-5650) [n:127.0.0.1:42575_solr    
x:coll1_shard2_replica_n2 ] o.a.s.c.TransientSolrCoreCacheDefault Allocating 
transient core cache for max 2147483647 cores with initial capacity of 1024
   [junit4]   2> 344420 INFO  (qtp1938280261-5650) [n:127.0.0.1:42575_solr 
c:coll1 s:shard2 r:core_node4 x:coll1_shard2_replica_n2 ] o.a.s.c.SolrConfig 
Using Lucene MatchVersion: 8.10.2
   [junit4]   2> 344420 WARN  (qtp1938280261-5650) [n:127.0.0.1:42575_solr 
c:coll1 s:shard2 r:core_node4 x:coll1_shard2_replica_n2 ] o.a.s.c.SolrConfig 
solrconfig.xml: <jmx> is no longer supported, use solr.xml:/metrics/reporter 
section instead
   [junit4]   2> 344424 INFO  (qtp1938280261-5650) [n:127.0.0.1:42575_solr 
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Schema name=default-config
   [junit4]   2> 344462 INFO  (qtp1235554837-5646) [n:127.0.0.1:36603_solr 
c:coll1 s:shard1 r:core_node3 x:coll1_shard1_replica_n1 ] o.a.s.s.IndexSchema 
Loaded schema default-config/1.6 with uniqueid field id
   [junit4]   2> 344473 INFO  (qtp1938280261-5650) [n:127.0.0.1:42575_solr 
c:coll1 s:shard2 r:core_node4 x:coll1_shard2_replica_n2 ] o.a.s.s.IndexSchema 
Loaded schema default-config/1.6 with uniqueid field id
   [junit4]   2> 344503 INFO  (qtp1235554837-5646) [n:127.0.0.1:36603_solr 
c:coll1 s:shard1 r:core_node3 x:coll1_shard1_replica_n1 ] o.a.s.c.CoreContainer 
Creating SolrCore 'coll1_shard1_replica_n1' using configuration from configset 
coll1.AUTOCREATED, trusted=true
   [junit4]   2> 344509 INFO  (qtp1938280261-5650) [n:127.0.0.1:42575_solr 
c:coll1 s:shard2 r:core_node4 x:coll1_shard2_replica_n2 ] o.a.s.c.CoreContainer 
Creating SolrCore 'coll1_shard2_replica_n2' using configuration from configset 
coll1.AUTOCREATED, trusted=true
   [junit4]   2> 344511 INFO  (qtp1235554837-5646) [n:127.0.0.1:36603_solr 
c:coll1 s:shard1 r:core_node3 x:coll1_shard1_replica_n1 ] o.a.s.c.SolrCore 
[[coll1_shard1_replica_n1] ] Opening new SolrCore at 
[/home/jenkins/jenkins-slave/workspace/Lucene/Lucene-Solr-Tests-8.10/solr/build/solr-core/test/J1/temp/solr.cloud.ZkFailoverTest_529A99DA1986718D-001/tempDir-001/node2/coll1_shard1_replica_n1],
 
dataDir=[/home/jenkins/jenkins-slave/workspace/Lucene/Lucene-Solr-Tests-8.10/solr/build/solr-core/test/J1/temp/solr.cloud.ZkFailoverTest_529A99DA1986718D-001/tempDir-001/node2/coll1_shard1_replica_n1/data/]
   [junit4]   2> 344512 INFO  (qtp1938280261-5650) [n:127.0.0.1:42575_solr 
c:coll1 s:shard2 r:core_node4 x:coll1_shard2_replica_n2 ] o.a.s.c.SolrCore 
[[coll1_shard2_replica_n2] ] Opening new SolrCore at 
[/home/jenkins/jenkins-slave/workspace/Lucene/Lucene-Solr-Tests-8.10/solr/build/solr-core/test/J1/temp/solr.cloud.ZkFailoverTest_529A99DA1986718D-001/tempDir-001/node1/coll1_shard2_replica_n2],
 
dataDir=[/home/jenkins/jenkins-slave/workspace/Lucene/Lucene-Solr-Tests-8.10/solr/build/solr-core/test/J1/temp/solr.cloud.ZkFailoverTest_529A99DA1986718D-001/tempDir-001/node1/coll1_shard2_replica_n2/data/]
   [junit4]   2> 344573 INFO  (qtp1235554837-5646) [n:127.0.0.1:36603_solr 
c:coll1 s:shard1 r:core_node3 x:coll1_shard1_replica_n1 ] o.a.s.u.UpdateHandler 
Using UpdateLog implementation: org.apache.solr.update.UpdateLog
   [junit4]   2> 344573 INFO  (qtp1235554837-5646) [n:127.0.0.1:36603_solr 
c:coll1 s:shard1 r:core_node3 x:coll1_shard1_replica_n1 ] o.a.s.u.UpdateLog 
Initializing UpdateLog: dataDir= defaultSyncLevel=FLUSH numRecordsToKeep=100 
maxNumLogsToKeep=10 numVersionBuckets=65536
   [junit4]   2> 344573 INFO  (qtp1938280261-5650) [n:127.0.0.1:42575_solr 
c:coll1 s:shard2 r:core_node4 x:coll1_shard2_replica_n2 ] o.a.s.u.UpdateHandler 
Using UpdateLog implementation: org.apache.solr.update.UpdateLog
   [junit4]   2> 344573 INFO  (qtp1938280261-5650) [n:127.0.0.1:42575_solr 
c:coll1 s:shard2 r:core_node4 x:coll1_shard2_replica_n2 ] o.a.s.u.UpdateLog 
Initializing UpdateLog: dataDir= defaultSyncLevel=FLUSH numRecordsToKeep=100 
maxNumLogsToKeep=10 numVersionBuckets=65536
   [junit4]   2> 344573 INFO  (qtp1235554837-5646) [n:127.0.0.1:36603_solr 
c:coll1 s:shard1 r:core_node3 x:coll1_shard1_replica_n1 ] o.a.s.u.CommitTracker 
Hard AutoCommit: if uncommitted for 15000ms; 
   [junit4]   2> 344573 INFO  (qtp1938280261-5650) [n:127.0.0.1:42575_solr 
c:coll1 s:shard2 r:core_node4 x:coll1_shard2_replica_n2 ] o.a.s.u.CommitTracker 
Hard AutoCommit: if uncommitted for 15000ms; 
   [junit4]   2> 344573 INFO  (qtp1235554837-5646) [n:127.0.0.1:36603_solr 
c:coll1 s:shard1 r:core_node3 x:coll1_shard1_replica_n1 ] o.a.s.u.CommitTracker 
Soft AutoCommit: disabled
   [junit4]   2> 344573 INFO  (qtp1938280261-5650) [n:127.0.0.1:42575_solr 
c:coll1 s:shard2 r:core_node4 x:coll1_shard2_replica_n2 ] o.a.s.u.CommitTracker 
Soft AutoCommit: disabled
   [junit4]   2> 344577 INFO  (qtp1235554837-5646) [n:127.0.0.1:36603_solr 
c:coll1 s:shard1 r:core_node3 x:coll1_shard1_replica_n1 ] 
o.a.s.r.ManagedResourceStorage Configured ZooKeeperStorageIO with znodeBase: 
/configs/coll1.AUTOCREATED
   [junit4]   2> 344577 INFO  (qtp1938280261-5650) [n:127.0.0.1:42575_solr 
c:coll1 s:shard2 r:core_node4 x:coll1_shard2_replica_n2 ] 
o.a.s.r.ManagedResourceStorage Configured ZooKeeperStorageIO with znodeBase: 
/configs/coll1.AUTOCREATED
   [junit4]   2> 344578 INFO  (qtp1235554837-5646) [n:127.0.0.1:36603_solr 
c:coll1 s:shard1 r:core_node3 x:coll1_shard1_replica_n1 ] 
o.a.s.r.ManagedResourceStorage Loaded null at path _rest_managed.json using 
ZooKeeperStorageIO:path=/configs/coll1.AUTOCREATED
   [junit4]   2> 344578 INFO  (qtp1938280261-5650) [n:127.0.0.1:42575_solr 
c:coll1 s:shard2 r:core_node4 x:coll1_shard2_replica_n2 ] 
o.a.s.r.ManagedResourceStorage Loaded null at path _rest_managed.json using 
ZooKeeperStorageIO:path=/configs/coll1.AUTOCREATED
   [junit4]   2> 344578 INFO  (qtp1235554837-5646) [n:127.0.0.1:36603_solr 
c:coll1 s:shard1 r:core_node3 x:coll1_shard1_replica_n1 ] 
o.a.s.s.ZkIndexSchemaReader Creating ZooKeeper watch for the managed schema at 
/configs/coll1.AUTOCREATED/managed-schema
   [junit4]   2> 344578 INFO  (qtp1938280261-5650) [n:127.0.0.1:42575_solr 
c:coll1 s:shard2 r:core_node4 x:coll1_shard2_replica_n2 ] 
o.a.s.s.ZkIndexSchemaReader Creating ZooKeeper watch for the managed schema at 
/configs/coll1.AUTOCREATED/managed-schema
   [junit4]   2> 344578 INFO  (qtp1235554837-5646) [n:127.0.0.1:36603_solr 
c:coll1 s:shard1 r:core_node3 x:coll1_shard1_replica_n1 ] 
o.a.s.s.ZkIndexSchemaReader Current schema version 0 is already the latest
   [junit4]   2> 344578 INFO  (qtp1235554837-5646) [n:127.0.0.1:36603_solr 
c:coll1 s:shard1 r:core_node3 x:coll1_shard1_replica_n1 ] 
o.a.s.h.c.SpellCheckComponent Initializing spell checkers
   [junit4]   2> 344579 INFO  (qtp1235554837-5646) [n:127.0.0.1:36603_solr 
c:coll1 s:shard1 r:core_node3 x:coll1_shard1_replica_n1 ] 
o.a.s.s.DirectSolrSpellChecker init: 
{name=default,field=_text_,classname=solr.DirectSolrSpellChecker,distanceMeasure=internal,accuracy=0.5,maxQueryFrequency=0.01,maxEdits=2,minPrefix=1,maxInspections=5,minQueryLength=4}
   [junit4]   2> 344579 INFO  (qtp1938280261-5650) [n:127.0.0.1:42575_solr 
c:coll1 s:shard2 r:core_node4 x:coll1_shard2_replica_n2 ] 
o.a.s.s.ZkIndexSchemaReader Current schema version 0 is already the latest
   [junit4]   2> 344579 INFO  (qtp1938280261-5650) [n:127.0.0.1:42575_solr 
c:coll1 s:shard2 r:core_node4 x:coll1_shard2_replica_n2 ] 
o.a.s.h.c.SpellCheckComponent Initializing spell checkers
   [junit4]   2> 344579 INFO  (qtp1938280261-5650) [n:127.0.0.1:42575_solr 
c:coll1 s:shard2 r:core_node4 x:coll1_shard2_replica_n2 ] 
o.a.s.s.DirectSolrSpellChecker init: 
{name=default,field=_text_,classname=solr.DirectSolrSpellChecker,distanceMeasure=internal,accuracy=0.5,maxQueryFrequency=0.01,maxEdits=2,minPrefix=1,maxInspections=5,minQueryLength=4}
   [junit4]   2> 344579 INFO  (qtp1235554837-5646) [n:127.0.0.1:36603_solr 
c:coll1 s:shard1 r:core_node3 x:coll1_shard1_replica_n1 ] 
o.a.s.h.ReplicationHandler Commits will be reserved for 10000 ms
   [junit4]   2> 344579 INFO  (qtp1235554837-5646) [n:127.0.0.1:36603_solr 
c:coll1 s:shard1 r:core_node3 x:coll1_shard1_replica_n1 ] o.a.s.u.UpdateLog 
Could not find max version in index or recent updates, using new clock 
1715313246723899392
   [junit4]   2> 344580 INFO  (qtp1938280261-5650) [n:127.0.0.1:42575_solr 
c:coll1 s:shard2 r:core_node4 x:coll1_shard2_replica_n2 ] 
o.a.s.h.ReplicationHandler Commits will be reserved for 10000 ms
   [junit4]   2> 344580 INFO  (qtp1938280261-5650) [n:127.0.0.1:42575_solr 
c:coll1 s:shard2 r:core_node4 x:coll1_shard2_replica_n2 ] o.a.s.u.UpdateLog 
Could not find max version in index or recent updates, using new clock 
1715313246724947968
   [junit4]   2> 344581 INFO  
(searcherExecutor-3491-thread-1-processing-n:127.0.0.1:36603_solr 
x:coll1_shard1_replica_n1 c:coll1 s:shard1 r:core_node3) 
[n:127.0.0.1:36603_solr c:coll1 s:shard1 r:core_node3 x:coll1_shard1_replica_n1 
] o.a.s.c.QuerySenderListener QuerySenderListener done.
   [junit4]   2> 344582 INFO  
(searcherExecutor-3491-thread-1-processing-n:127.0.0.1:36603_solr 
x:coll1_shard1_replica_n1 c:coll1 s:shard1 r:core_node3) 
[n:127.0.0.1:36603_solr c:coll1 s:shard1 r:core_node3 x:coll1_shard1_replica_n1 
] o.a.s.h.c.SpellCheckComponent Loading spell index for spellchecker: default
   [junit4]   2> 344582 INFO  
(searcherExecutor-3491-thread-1-processing-n:127.0.0.1:36603_solr 
x:coll1_shard1_replica_n1 c:coll1 s:shard1 r:core_node3) 
[n:127.0.0.1:36603_solr c:coll1 s:shard1 r:core_node3 x:coll1_shard1_replica_n1 
] o.a.s.c.SolrCore [coll1_shard1_replica_n1]  Registered new searcher autowarm 
time: 0 ms
   [junit4]   2> 344582 INFO  
(searcherExecutor-3493-thread-1-processing-n:127.0.0.1:42575_solr 
x:coll1_shard2_replica_n2 c:coll1 s:shard2 r:core_node4) 
[n:127.0.0.1:42575_solr c:coll1 s:shard2 r:core_node4 x:coll1_shard2_replica_n2 
] o.a.s.c.QuerySenderListener QuerySenderListener done.
   [junit4]   2> 344582 INFO  
(searcherExecutor-3493-thread-1-processing-n:127.0.0.1:42575_solr 
x:coll1_shard2_replica_n2 c:coll1 s:shard2 r:core_node4) [n:127.0.0.1:42575_

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

(ThreadPoolExecutor.java:1074)
   [junit4]    >         at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
   [junit4]    >         at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
   [junit4]    >         at java.lang.Thread.run(Thread.java:748)
   [junit4]    >        at 
__randomizedtesting.SeedInfo.seed([529A99DA1986718D]:0)Throwable #2: 
com.carrotsearch.randomizedtesting.ThreadLeakError: There are still zombie 
threads that couldn't be terminated:
   [junit4]    >    1) Thread[id=5857, name=NIOWorkerThread-8, state=WAITING, 
group=TGRP-ZkFailoverTest]
   [junit4]    >         at sun.misc.Unsafe.park(Native Method)
   [junit4]    >         at 
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
   [junit4]    >         at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
   [junit4]    >         at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
   [junit4]    >         at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
   [junit4]    >         at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
   [junit4]    >         at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
   [junit4]    >         at java.lang.Thread.run(Thread.java:748)
   [junit4]    >    2) Thread[id=5855, name=NIOWorkerThread-6, state=WAITING, 
group=TGRP-ZkFailoverTest]
   [junit4]    >         at sun.misc.Unsafe.park(Native Method)
   [junit4]    >         at 
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
   [junit4]    >         at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
   [junit4]    >         at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
   [junit4]    >         at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
   [junit4]    >         at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
   [junit4]    >         at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
   [junit4]    >         at java.lang.Thread.run(Thread.java:748)
   [junit4]    >    3) Thread[id=5848, name=NIOWorkerThread-3, state=WAITING, 
group=TGRP-ZkFailoverTest]
   [junit4]    >         at sun.misc.Unsafe.park(Native Method)
   [junit4]    >         at 
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
   [junit4]    >         at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
   [junit4]    >         at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
   [junit4]    >         at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
   [junit4]    >         at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
   [junit4]    >         at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
   [junit4]    >         at java.lang.Thread.run(Thread.java:748)
   [junit4]    >    4) Thread[id=5853, name=NIOWorkerThread-5, state=WAITING, 
group=TGRP-ZkFailoverTest]
   [junit4]    >         at sun.misc.Unsafe.park(Native Method)
   [junit4]    >         at 
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
   [junit4]    >         at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
   [junit4]    >         at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
   [junit4]    >         at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
   [junit4]    >         at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
   [junit4]    >         at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
   [junit4]    >         at java.lang.Thread.run(Thread.java:748)
   [junit4]    >    5) Thread[id=5856, name=NIOWorkerThread-7, state=WAITING, 
group=TGRP-ZkFailoverTest]
   [junit4]    >         at sun.misc.Unsafe.park(Native Method)
   [junit4]    >         at 
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
   [junit4]    >         at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
   [junit4]    >         at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
   [junit4]    >         at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
   [junit4]    >         at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
   [junit4]    >         at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
   [junit4]    >         at java.lang.Thread.run(Thread.java:748)
   [junit4]    >    6) Thread[id=5838, 
name=NIOServerCxnFactory.SelectorThread-0, state=RUNNABLE, 
group=TGRP-ZkFailoverTest]
   [junit4]    >         at sun.nio.ch.EPollArrayWrapper.interrupt(Native 
Method)
   [junit4]    >         at 
sun.nio.ch.EPollArrayWrapper.interrupt(EPollArrayWrapper.java:317)
   [junit4]    >         at 
sun.nio.ch.EPollSelectorImpl.wakeup(EPollSelectorImpl.java:207)
   [junit4]    >         at 
java.nio.channels.spi.AbstractSelector$1.interrupt(AbstractSelector.java:213)
   [junit4]    >         at 
java.nio.channels.spi.AbstractSelector.begin(AbstractSelector.java:219)
   [junit4]    >         at 
sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:92)
   [junit4]    >         at 
sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)
   [junit4]    >         at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
   [junit4]    >         at 
sun.nio.ch.SelectorImpl.select(SelectorImpl.java:101)
   [junit4]    >         at 
org.apache.zookeeper.server.NIOServerCnxnFactory$SelectorThread.select(NIOServerCnxnFactory.java:417)
   [junit4]    >         at 
org.apache.zookeeper.server.NIOServerCnxnFactory$SelectorThread.run(NIOServerCnxnFactory.java:382)
   [junit4]    >    7) Thread[id=5839, 
name=NIOServerCxnFactory.AcceptThread:0.0.0.0/0.0.0.0:35691, state=RUNNABLE, 
group=TGRP-ZkFailoverTest]
   [junit4]    >         at sun.nio.ch.EPollArrayWrapper.epollWait(Native 
Method)
   [junit4]    >         at 
sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
   [junit4]    >         at 
sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:93)
   [junit4]    >         at 
sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)
   [junit4]    >         at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
   [junit4]    >         at 
sun.nio.ch.SelectorImpl.select(SelectorImpl.java:101)
   [junit4]    >         at 
org.apache.zookeeper.server.NIOServerCnxnFactory$AcceptThread.select(NIOServerCnxnFactory.java:219)
   [junit4]    >         at 
org.apache.zookeeper.server.NIOServerCnxnFactory$AcceptThread.run(NIOServerCnxnFactory.java:195)
   [junit4]    >    8) Thread[id=5852, name=NIOWorkerThread-4, state=WAITING, 
group=TGRP-ZkFailoverTest]
   [junit4]    >         at sun.misc.Unsafe.park(Native Method)
   [junit4]    >         at 
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
   [junit4]    >         at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
   [junit4]    >         at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
   [junit4]    >         at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
   [junit4]    >         at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
   [junit4]    >         at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
   [junit4]    >         at java.lang.Thread.run(Thread.java:748)
   [junit4]    >    9) Thread[id=5844, name=NIOWorkerThread-1, state=WAITING, 
group=TGRP-ZkFailoverTest]
   [junit4]    >         at sun.misc.Unsafe.park(Native Method)
   [junit4]    >         at 
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
   [junit4]    >         at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
   [junit4]    >         at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
   [junit4]    >         at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
   [junit4]    >         at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
   [junit4]    >         at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
   [junit4]    >         at java.lang.Thread.run(Thread.java:748)
   [junit4]    >   10) Thread[id=5847, name=NIOWorkerThread-2, state=WAITING, 
group=TGRP-ZkFailoverTest]
   [junit4]    >         at sun.misc.Unsafe.park(Native Method)
   [junit4]    >         at 
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
   [junit4]    >         at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
   [junit4]    >         at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
   [junit4]    >         at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
   [junit4]    >         at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
   [junit4]    >         at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
   [junit4]    >         at java.lang.Thread.run(Thread.java:748)
   [junit4]    >        at 
__randomizedtesting.SeedInfo.seed([529A99DA1986718D]:0)
   [junit4] Completed [167/948 (1!)] on J1 in 55.47s, 1 test, 3 errors <<< 
FAILURES!

[...truncated 56887 lines...]
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