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https://issues.apache.org/jira/browse/LUCENE-8176?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16394420#comment-16394420
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ASF subversion and git services commented on LUCENE-8176:
---------------------------------------------------------
Commit 779821fe10ee5584afee47da9e088a12c64dcbcd in lucene-solr's branch
refs/heads/master from [~mkhludnev]
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=779821f ]
LUCENE-8176: await HttpReplicatorTest completion for a minute.
> HttpReplicatorTest sometimes fails with leaked thread
> -----------------------------------------------------
>
> Key: LUCENE-8176
> URL: https://issues.apache.org/jira/browse/LUCENE-8176
> Project: Lucene - Core
> Issue Type: Bug
> Reporter: Adrien Grand
> Priority: Minor
> Attachments: LUCENE-8176.patch
>
>
> I can't reproduce it locally when beasting thousands of times but it occurs
> on the Elastic CI. The logs look like this:
> {noformat}
> 08:56:28 [junit4] Suite:
> org.apache.lucene.replicator.http.HttpReplicatorTest
> 08:56:28 [junit4] 2> 2018-02-15
> 18:55:34.282:INFO::TEST-HttpReplicatorTest.testBasic-seed#[74212B823E917AF0]:
> Logging initialized @4074ms to org.eclipse.jetty.util.log.StdErrLog
> 08:56:28 [junit4] 2> 2018-02-15
> 18:55:34.416:INFO:oejs.Server:TEST-HttpReplicatorTest.testBasic-seed#[74212B823E917AF0]:
> jetty-9.4.8.v20171121, build timestamp: 2017-11-22T07:27:37+10:00, git hash:
> 82b8fb23f757335bb3329d540ce37a2a2615f0a8
> 08:56:28 [junit4] 2> 2018-02-15
> 18:55:34.449:INFO:oejs.session:TEST-HttpReplicatorTest.testBasic-seed#[74212B823E917AF0]:
> DefaultSessionIdManager workerName=node0
> 08:56:28 [junit4] 2> 2018-02-15
> 18:55:34.449:INFO:oejs.session:TEST-HttpReplicatorTest.testBasic-seed#[74212B823E917AF0]:
> No SessionScavenger set, using defaults
> 08:56:28 [junit4] 2> 2018-02-15
> 18:55:34.454:INFO:oejs.session:TEST-HttpReplicatorTest.testBasic-seed#[74212B823E917AF0]:
> Scavenging every 600000ms
> 08:56:28 [junit4] 2> 2018-02-15
> 18:55:34.509:INFO:oejs.AbstractConnector:TEST-HttpReplicatorTest.testBasic-seed#[74212B823E917AF0]:
> Started ServerConnector@7d0c3601{HTTP/1.1,[http/1.1]}{127.0.0.1:40696}
> 08:56:28 [junit4] 2> 2018-02-15
> 18:55:34.510:INFO:oejs.Server:TEST-HttpReplicatorTest.testBasic-seed#[74212B823E917AF0]:
> Started @4301ms
> 08:56:28 [junit4] 2> 2018-02-15
> 18:55:35.236:INFO:oejs.AbstractConnector:TEST-HttpReplicatorTest.testBasic-seed#[74212B823E917AF0]:
> Stopped ServerConnector@7d0c3601{HTTP/1.1,[http/1.1]}{127.0.0.1:0}
> 08:56:28 [junit4] 2> 2018-02-15
> 18:55:35.239:INFO:oejs.session:TEST-HttpReplicatorTest.testBasic-seed#[74212B823E917AF0]:
> Stopped scavenging
> 08:56:28 [junit4] 2> 2018-02-15
> 18:55:35.258:INFO:oejs.Server:TEST-HttpReplicatorTest.testServerErrors-seed#[74212B823E917AF0]:
> jetty-9.4.8.v20171121, build timestamp: 2017-11-22T07:27:37+10:00, git hash:
> 82b8fb23f757335bb3329d540ce37a2a2615f0a8
> 08:56:28 [junit4] 2> 2018-02-15
> 18:55:35.260:INFO:oejs.session:TEST-HttpReplicatorTest.testServerErrors-seed#[74212B823E917AF0]:
> DefaultSessionIdManager workerName=node0
> 08:56:28 [junit4] 2> 2018-02-15
> 18:55:35.260:INFO:oejs.session:TEST-HttpReplicatorTest.testServerErrors-seed#[74212B823E917AF0]:
> No SessionScavenger set, using defaults
> 08:56:28 [junit4] 2> 2018-02-15
> 18:55:35.260:INFO:oejs.session:TEST-HttpReplicatorTest.testServerErrors-seed#[74212B823E917AF0]:
> Scavenging every 660000ms
> 08:56:28 [junit4] 2> 2018-02-15
> 18:55:35.262:INFO:oejs.AbstractConnector:TEST-HttpReplicatorTest.testServerErrors-seed#[74212B823E917AF0]:
> Started ServerConnector@31668a1{HTTP/1.1,[http/1.1]}{127.0.0.1:43769}
> 08:56:28 [junit4] 2> 2018-02-15
> 18:55:35.262:INFO:oejs.Server:TEST-HttpReplicatorTest.testServerErrors-seed#[74212B823E917AF0]:
> Started @5054ms
> 08:56:28 [junit4] 2> 2018-02-15
> 18:55:35.332:INFO:oejs.AbstractConnector:TEST-HttpReplicatorTest.testServerErrors-seed#[74212B823E917AF0]:
> Stopped ServerConnector@31668a1{HTTP/1.1,[http/1.1]}{127.0.0.1:0}
> 08:56:28 [junit4] 2> 2018-02-15
> 18:55:35.333:INFO:oejs.session:TEST-HttpReplicatorTest.testServerErrors-seed#[74212B823E917AF0]:
> Stopped scavenging
> 08:56:28 [junit4] 2> 2018-02-15
> 18:56:05.331:WARN:oejut.QueuedThreadPool:TEST-HttpReplicatorTest.testServerErrors-seed#[74212B823E917AF0]:
> QueuedThreadPool@qtp1066862162{STOPPING,8<=8<=10000,i=0,q=1} Couldn't stop
> Thread[qtp1066862162-31,5,TGRP-HttpReplicatorTest]
> 08:56:28 [junit4] 2> Feb 15, 2018 8:56:05 AM
> com.carrotsearch.randomizedtesting.ThreadLeakControl checkThreadLeaks
> 08:56:28 [junit4] 2> WARNING: Will linger awaiting termination of 1
> leaked thread(s).
> 08:56:28 [junit4] 2> Feb 15, 2018 8:56:25 AM
> com.carrotsearch.randomizedtesting.ThreadLeakControl checkThreadLeaks
> 08:56:28 [junit4] 2> SEVERE: 1 thread leaked from SUITE scope at
> org.apache.lucene.replicator.http.HttpReplicatorTest:
> 08:56:28 [junit4] 2> 1) Thread[id=31, name=qtp1066862162-31,
> state=TIMED_WAITING, group=TGRP-HttpReplicatorTest]
> 08:56:28 [junit4] 2> at sun.misc.Unsafe.park(Native Method)
> 08:56:28 [junit4] 2> at
> java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
> 08:56:28 [junit4] 2> at
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2163)
> 08:56:28 [junit4] 2> at
> org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.reservedWait(ReservedThreadExecutor.java:308)
> 08:56:28 [junit4] 2> at
> org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:373)
> 08:56:28 [junit4] 2> at
> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:708)
> 08:56:28 [junit4] 2> at
> org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:626)
> 08:56:28 [junit4] 2> at java.lang.Thread.run(Thread.java:748)
> 08:56:28 [junit4] 2> Feb 15, 2018 8:56:25 AM
> com.carrotsearch.randomizedtesting.ThreadLeakControl tryToInterruptAll
> 08:56:28 [junit4] 2> INFO: Starting to interrupt leaked threads:
> 08:56:28 [junit4] 2> 1) Thread[id=31, name=qtp1066862162-31,
> state=TIMED_WAITING, group=TGRP-HttpReplicatorTest]
> 08:56:28 [junit4] 2> Feb 15, 2018 8:56:28 AM
> com.carrotsearch.randomizedtesting.ThreadLeakControl tryToInterruptAll
> 08:56:28 [junit4] 2> SEVERE: There are still zombie threads that
> couldn't be terminated:
> 08:56:28 [junit4] 2> 1) Thread[id=31, name=qtp1066862162-31,
> state=TIMED_WAITING, group=TGRP-HttpReplicatorTest]
> 08:56:28 [junit4] 2> at sun.misc.Unsafe.park(Native Method)
> 08:56:28 [junit4] 2> at
> java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
> 08:56:28 [junit4] 2> at
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2163)
> 08:56:28 [junit4] 2> at
> org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.reservedWait(ReservedThreadExecutor.java:308)
> 08:56:28 [junit4] 2> at
> org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:373)
> 08:56:28 [junit4] 2> at
> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:708)
> 08:56:28 [junit4] 2> at
> org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:626)
> 08:56:28 [junit4] 2> at java.lang.Thread.run(Thread.java:748)
> 08:56:28 [junit4] 2> NOTE: test params are: codec=Asserting(Lucene70):
> {}, docValues:{}, maxPointsInLeafNode=1782,
> maxMBSortInHeap=7.137471976677822,
> sim=Asserting(org.apache.lucene.search.similarities.AssertingSimilarity@52731bd6),
> locale=nl-BE, timezone=Antarctica/DumontDUrville
> 08:56:28 [junit4] 2> NOTE: Linux 4.4.0-1048-aws amd64/Oracle Corporation
> 1.8.0_151 (64-bit)/cpus=4,threads=2,free=238028936,total=319291392
> 08:56:28 [junit4] 2> NOTE: All tests run in this JVM:
> [IndexAndTaxonomyRevisionTest, LocalReplicatorTest, HttpReplicatorTest]
> 08:56:28 [junit4] 2> NOTE: reproduce with: ant test
> -Dtestcase=HttpReplicatorTest -Dtests.seed=74212B823E917AF0 -Dtests.slow=true
> -Dtests.locale=nl-BE -Dtests.timezone=Antarctica/DumontDUrville
> -Dtests.asserts=true -Dtests.file.encoding=UTF-8
> 08:56:28 [junit4] ERROR 0.00s J1 | HttpReplicatorTest (suite) <<<
> 08:56:28 [junit4] > Throwable #1:
> com.carrotsearch.randomizedtesting.ThreadLeakError: 1 thread leaked from
> SUITE scope at org.apache.lucene.replicator.http.HttpReplicatorTest:
> 08:56:28 [junit4] > 1) Thread[id=31, name=qtp1066862162-31,
> state=TIMED_WAITING, group=TGRP-HttpReplicatorTest]
> 08:56:28 [junit4] > at sun.misc.Unsafe.park(Native Method)
> 08:56:28 [junit4] > at
> java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
> 08:56:28 [junit4] > at
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2163)
> 08:56:28 [junit4] > at
> org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.reservedWait(ReservedThreadExecutor.java:308)
> 08:56:28 [junit4] > at
> org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:373)
> 08:56:28 [junit4] > at
> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:708)
> 08:56:28 [junit4] > at
> org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:626)
> 08:56:28 [junit4] > at java.lang.Thread.run(Thread.java:748)
> 08:56:28 [junit4] > at
> __randomizedtesting.SeedInfo.seed([74212B823E917AF0]:0)Throwable #2:
> com.carrotsearch.randomizedtesting.ThreadLeakError: There are still zombie
> threads that couldn't be terminated:
> 08:56:28 [junit4] > 1) Thread[id=31, name=qtp1066862162-31,
> state=TIMED_WAITING, group=TGRP-HttpReplicatorTest]
> 08:56:28 [junit4] > at sun.misc.Unsafe.park(Native Method)
> 08:56:28 [junit4] > at
> java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
> 08:56:28 [junit4] > at
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2163)
> 08:56:28 [junit4] > at
> org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.reservedWait(ReservedThreadExecutor.java:308)
> 08:56:28 [junit4] > at
> org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:373)
> 08:56:28 [junit4] > at
> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:708)
> 08:56:28 [junit4] > at
> org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:626)
> 08:56:28 [junit4] > at java.lang.Thread.run(Thread.java:748)
> 08:56:28 [junit4] > at
> __randomizedtesting.SeedInfo.seed([74212B823E917AF0]:0)
> 08:56:28 [junit4] Completed [9/9 (1!)] on J1 in 54.16s, 2 tests, 2 errors
> <<< FAILURES!
> {noformat}
> This line in particular is interesting:
> {noformat}
> 08:56:28 [junit4] 2> 2018-02-15
> 18:56:05.331:WARN:oejut.QueuedThreadPool:TEST-HttpReplicatorTest.testServerErrors-seed#[74212B823E917AF0]:
> QueuedThreadPool@qtp1066862162{STOPPING,8<=8<=10000,i=0,q=1} Couldn't stop
> Thread[qtp1066862162-31,5,TGRP-HttpReplicatorTest]}
> {noformat}. It means that Jetty waited for 500ms for this thread to finish
> its work, then interrupted it, then waited again for 500ms and the thread was
> still alive. It is not clear to me whether the bug is yet. I guess it could
> be either Jetty or how the test handles InterruptedException.
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