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https://issues.apache.org/jira/browse/HBASE-19954?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Duo Zhang updated HBASE-19954:
------------------------------
Component/s: hadoop2
> Separate TestBlockReorder into individual tests to avoid ShutdownHook
> suppression error against hadoop3
> --------------------------------------------------------------------------------------------------------
>
> Key: HBASE-19954
> URL: https://issues.apache.org/jira/browse/HBASE-19954
> Project: HBase
> Issue Type: Bug
> Components: hadoop2, hadoop3, test
> Reporter: Ted Yu
> Assignee: Ted Yu
> Priority: Major
> Fix For: 2.0.0-beta-2, 2.0.0
>
> Attachments: 19954.v1.txt, 19954.v2.txt, 19954.v3.txt, 19954.v4.txt
>
>
> TestBlockReorder fails against hadoop 3 due to the following error:
> {code}
> 2018-02-08 17:22:23,389 ERROR [RS:0;cn012:38253]
> helpers.MarkerIgnoringBase(159): ***** ABORTING region server
> cn012.l42scl.hortonworks.com,38253,1518110542271: Unhandled: Failed
> suppression of fs shutdown hook:
> org.apache.hadoop.fs.FileSystem$Cache$ClientFinalizer@6a0c707e *****
> java.lang.RuntimeException: Failed suppression of fs shutdown hook:
> org.apache.hadoop.fs.FileSystem$Cache$ClientFinalizer@6a0c707e
> at
> org.apache.hadoop.hbase.regionserver.ShutdownHook.suppressHdfsShutdownHook(ShutdownHook.java:207)
> at
> org.apache.hadoop.hbase.regionserver.ShutdownHook.install(ShutdownHook.java:85)
> at
> org.apache.hadoop.hbase.regionserver.HRegionServer.run(HRegionServer.java:927)
> at
> org.apache.hadoop.hbase.MiniHBaseCluster$MiniHBaseClusterRegionServer.runRegionServer(MiniHBaseCluster.java:187)
> {code}
> This is because when MiniDFSCluster is stopped in first subtest, hadoop 3
> clears ShutdownHook.
> When the 2nd test starts, suppression of ShutdownHook fails.
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