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https://issues.apache.org/jira/browse/HIVE-3251?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13418836#comment-13418836
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Hudson commented on HIVE-3251:
------------------------------
Integrated in Hive-trunk-h0.21 #1553 (See
[https://builds.apache.org/job/Hive-trunk-h0.21/1553/])
HIVE-3251 Hive doesn't remove scrach directories while killing running MR
job
(Gang Tim Liu via namit) (Revision 1363424)
Result = FAILURE
namit : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1363424
Files :
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/Context.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/Driver.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/Utilities.java
> Hive doesn't remove scrach directories while killing running MR job
> -------------------------------------------------------------------
>
> Key: HIVE-3251
> URL: https://issues.apache.org/jira/browse/HIVE-3251
> Project: Hive
> Issue Type: Bug
> Components: Server Infrastructure
> Reporter: Gang Tim Liu
> Assignee: Gang Tim Liu
> Attachments: HIVE-3151.patch
>
>
> While killing running MR job, hive doesn't clean up scratch directory
> (mapred.cache.files). So that, afterwards, scratch directory is left there in
> hdfs. HDFS name node doesn't know it and try to do lease recovery. while such
> instances happen more, it will eventually crash namenode.
> The fix is to leverage hdfs clean up functionality. While creating scratch
> dirs, hive registers it to hdfs cleanup hook. While killing happens, hdfs
> will clean them up.
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