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https://issues.apache.org/jira/browse/HIVE-10781?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14553972#comment-14553972
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Nemon Lou commented on HIVE-10781:
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Thanks for providing this patch. :)
I think this patch will help. And it will take time to proven it on the cluster.
> HadoopJobExecHelper Leaks RunningJobs
> -------------------------------------
>
> Key: HIVE-10781
> URL: https://issues.apache.org/jira/browse/HIVE-10781
> Project: Hive
> Issue Type: Bug
> Components: Hive, HiveServer2
> Affects Versions: 0.13.1, 1.2.0
> Reporter: Nemon Lou
> Attachments: HIVE-10781.patch
>
>
> On one of our busy hadoop cluster, hiveServer2 holds more than 4000
> org.apache.hadoop.mapred.JobClient$NetworkedJob instances,while only has less
> than 3 backgroud handler thread at the same time.
> All these instances are hold in one LinkedList from
> org.apache.hadoop.hive.ql.exec.mr.HadoopJobExecHelper's runningJobs
> property,which is static.
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