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https://issues.apache.org/jira/browse/SOLR-12869?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16759189#comment-16759189
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Kevin Risden commented on SOLR-12869:
-------------------------------------
Looks like this could be related to SOLR-13060 and how HDFS doesn't terminate?
If this issue is guava related we should focus on SOLR-11763 since it is a
newer version of Guava upgrade. SOLR-9515 was merged to the master branch to
upgrade to Hadoop 3. Its not clear if these issue still exist there.
> Unit test stalling
> ------------------
>
> Key: SOLR-12869
> URL: https://issues.apache.org/jira/browse/SOLR-12869
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Components: Tests
> Affects Versions: 7.4
> Reporter: Vishal
> Priority: Minor
> Labels: test
> Attachments: solr-release.diff
>
>
> When guava dependency is upgraded from 14.0.1 to the latest version
> (26.0-jre/25.0-jre), some unit test stall indefinitely and testing never
> finishes up.
> For example, here HdfsNNFailoverTest stall indefinitely. Log excerpts for
> unit test run with guava 25.0-jre:
> 13:54:39.392 [QUIET] [system.out] [junit4] HEARTBEAT J0
> PID(258@8471261c0ae9): 2018-10-12T13:54:39, stalled for 70.6s at:
> HdfsNNFailoverTest (suite)
> 13:55:39.394 [QUIET] [system.out] [junit4] HEARTBEAT J0
> PID(258@8471261c0ae9): 2018-10-12T13:55:39, stalled for 131s at:
> HdfsNNFailoverTest (suite)
> 13:56:39.395 [QUIET] [system.out] [junit4] HEARTBEAT J0
> PID(258@8471261c0ae9): 2018-10-12T13:56:39, stalled for 191s at:
> HdfsNNFailoverTest (suite)
> 13:57:39.396 [QUIET] [system.out] [junit4] HEARTBEAT J0
> PID(258@8471261c0ae9): 2018-10-12T13:57:39, stalled for 251s at:
> HdfsNNFailoverTest (suite)
> 13:58:39.398 [QUIET] [system.out] [junit4] HEARTBEAT J0
> PID(258@8471261c0ae9): 2018-10-12T13:58:39, stalled for 311s at:
> HdfsNNFailoverTest (suite)
> 13:59:39.399 [QUIET] [system.out] [junit4] HEARTBEAT J0
> PID(258@8471261c0ae9): 2018-10-12T13:59:39, stalled for 371s at:
> HdfsNNFailoverTest (suite)
> Note: guava upgrade from default version 14.0.1 to 25.0-jre or 26.0-jre
> requires solr code changes. The diff file (sole-release.diff) is attached
> with this bug.
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