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https://issues.apache.org/jira/browse/SOLR-16848?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17738215#comment-17738215
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ASF subversion and git services commented on SOLR-16848:
--------------------------------------------------------
Commit 4acb26efa223cb739788aee1058793408ef30b20 in solr's branch
refs/heads/branch_9x from Alex Deparvu
[ https://gitbox.apache.org/repos/asf?p=solr.git;h=4acb26efa22 ]
SOLR-16848 : Fix flaky DeleteReplicaTest test (#1727)
Specifically, DeleteReplicaTest.raceConditionOnDeleteAndRegisterReplica()
---------
Co-authored-by: Paul McArthur <pmcart...@salesforce.com>
(cherry picked from commit 75810c953e847d4f5552c5485a0613f3753cbcee)
> Flaky DeleteReplicaTest.raceConditionOnDeleteAndRegisterReplica
> ---------------------------------------------------------------
>
> Key: SOLR-16848
> URL: https://issues.apache.org/jira/browse/SOLR-16848
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: Alex Deparvu
> Assignee: Jason Gerlowski
> Priority: Minor
> Time Spent: 1h 10m
> Remaining Estimate: 0h
>
> Some stats first:
> - Past 7 days trend:
> {noformat}
> Class: org.apache.solr.cloud.DeleteReplicaTest
> Method: raceConditionOnDeleteAndRegisterReplica
> Failures: 11.22% (44 / 392)
> {noformat}
> - Test failure is caused by a NullPointerException:
> {noformat}
> ERROR (coreZkRegister-772-thread-1-processing-127.0.0.1:40471_solr)
> [n:127.0.0.1:40471_solr c:raceDeleteReplicaCollection s:shard1 r:core_node4
> x:raceDeleteReplicaCollection_shard1_replica_n2] o.a.s.c.DeleteReplicaTest
> Failed to delete replica
> => java.lang.NullPointerException: Cannot invoke
> "org.apache.solr.core.CoreContainer.getZkController()" because the return
> value of "org.apache.solr.embedded.JettySolrRunner.getCoreContainer()" is null
> {noformat}
> a more complete trace
> {noformat}
> o.a.s.c.DeleteReplicaTest Failed to delete replica
> 2> => java.lang.NullPointerException
> 2> at
> org.apache.solr.cloud.DeleteReplicaTest.lambda$raceConditionOnDeleteAndRegisterReplica$10(DeleteReplicaTest.java:350)
> 2> java.lang.NullPointerException: null
> 2> at
> org.apache.solr.cloud.DeleteReplicaTest.lambda$raceConditionOnDeleteAndRegisterReplica$10(DeleteReplicaTest.java:350)
> 2> at
> org.apache.solr.core.ZkContainer.lambda$registerInZk$1(ZkContainer.java:211)
> [main/:?]
> 2> at
> org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:289)
> 2> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
> [?:?]
> 2> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
> [?:?]
> 2> at java.lang.Thread.run(Thread.java:829) [?:?]
> o.a.s.c.u.ExecutorUtil Uncaught exception java.lang.AssertionError: Failed to
> delete replica thrown by thread:
> coreZkRegister-1586-thread-1-processing-127.0.0.1:34497_solr
> 2> => java.lang.Exception: Submitter stack trace
> 2> at
> org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.execute(ExecutorUtil.java:256)
> java.lang.Exception: Submitter stack trace
> 2> at
> org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.execute(ExecutorUtil.java:256)
> 2> at org.apache.solr.core.ZkContainer.registerInZk(ZkContainer.java:244)
> ~[main/:?]
> 2> at
> org.apache.solr.core.CoreContainer.lambda$loadInternal$12(CoreContainer.java:1025)
> 2> at
> com.codahale.metrics.InstrumentedExecutorService$InstrumentedCallable.call(InstrumentedExecutorService.java:234)
> 2> at java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[?:?]
> 2> at
> org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:289)
> 2> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
> [?:?]
> 2> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
> [?:?]
> 2> at java.lang.Thread.run(Thread.java:829) [?:?]
> Caused by: java.lang.Exception: Submitter stack trace
> 2> at
> org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.execute(ExecutorUtil.java:256)
> 2> at
> java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:140)
> ~[?:?]
> 2> at
> com.codahale.metrics.InstrumentedExecutorService.submit(InstrumentedExecutorService.java:122)
> 2> at
> org.apache.solr.core.CoreContainer.loadInternal(CoreContainer.java:1009)
> ~[main/:?]
> 2> at org.apache.solr.core.CoreContainer.load(CoreContainer.java:753)
> 2> at
> org.apache.solr.servlet.CoreContainerProvider.createCoreContainer(CoreContainerProvider.java:411)
> 2> at
> org.apache.solr.servlet.CoreContainerProvider.init(CoreContainerProvider.java:230)
> 2> at
> org.apache.solr.embedded.JettySolrRunner$1.lifeCycleStarted(JettySolrRunner.java:407)
> {noformat}
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