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https://issues.apache.org/jira/browse/HBASE-17657?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ted Yu updated HBASE-17657:
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Attachment: 17657.v1.txt
> TestZKAsyncRegistry is flaky
> -----------------------------
>
> Key: HBASE-17657
> URL: https://issues.apache.org/jira/browse/HBASE-17657
> Project: HBase
> Issue Type: Test
> Reporter: Ted Yu
> Assignee: Ted Yu
> Attachments: 17657.v1.txt
>
>
> TestZKAsyncRegistry showed up in failed tests several times.
> On
> https://builds.apache.org/job/HBASE-Find-Flaky-Tests/lastSuccessfulBuild/artifact/dashboard.html
> , TestZKAsyncRegistry is reported flaky 33% of the time.
> e.g.
> https://builds.apache.org/job/PreCommit-HBASE-Build/5708/testReport/org.apache.hadoop.hbase.client/TestZKAsyncRegistry/test/
> Toward the end of test output:
> {code}
> 2017-02-14 20:23:20,779 WARN [main-EventThread] client.ZKAsyncRegistry(198):
> Meta region for replica 2 is in state PENDING_OPEN
> 2017-02-14 20:23:20,800 INFO [98410feec74d:45445.activeMasterManager]
> hbase.MetaTableAccessor(1767): Updated table hbase:meta state to ENABLED in
> META
> 2017-02-14 20:23:20,804 DEBUG [PostOpenDeployTasks:534574363]
> regionserver.HRegionServer(2034): Finished post open deploy task for
> hbase:meta,,1_0001.534574363
> 2017-02-14 20:23:20,811 DEBUG [RS_OPEN_META-98410feec74d:50745-0]
> handler.OpenRegionHandler(126): Opened hbase:meta,,1_0001.534574363 on
> 98410feec74d,50745,1487103793930
> {code}
> Looks like some replica of the hbase:meta table might not have finished
> opening by the time the test asserted region location not being null.
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