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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-14420) Zombie Stomping Session
Date Wed, 07 Oct 2015 20:53:26 GMT

    [ https://issues.apache.org/jira/browse/HBASE-14420?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14947556#comment-14947556
] 

stack commented on HBASE-14420:
-------------------------------

Report on last 10 runs of 1.2 hanging tests with 1.7 jvm:

   1 Hanging test : org.apache.hadoop.hbase.client.TestShell
   1 Hanging test : org.apache.hadoop.hbase.mapred.TestMultiTableSnapshotInputFormat
   1 Hanging test : org.apache.hadoop.hbase.mapred.TestTableMapReduce
   1 Hanging test : org.apache.hadoop.hbase.mapred.TestTableSnapshotInputFormat
   1 Hanging test : org.apache.hadoop.hbase.mapreduce.TestCopyTable
   1 Hanging test : org.apache.hadoop.hbase.mapreduce.TestImportTSVWithVisibilityLabels
   1 Hanging test : org.apache.hadoop.hbase.mapreduce.TestTableSnapshotInputFormat
   2 Hanging test : org.apache.hadoop.hbase.security.access.TestCellACLs





> Zombie Stomping Session
> -----------------------
>
>                 Key: HBASE-14420
>                 URL: https://issues.apache.org/jira/browse/HBASE-14420
>             Project: HBase
>          Issue Type: Umbrella
>          Components: test
>            Reporter: stack
>            Assignee: stack
>            Priority: Critical
>         Attachments: hangers.txt, none_fix (1).txt, none_fix.txt, none_fix.txt, none_fix.txt
>
>
> Patch build are now failing most of the time because we are dropping zombies. I confirm
we are doing this on non-apache build boxes too.
> Left-over zombies consume resources on build boxes (OOME cannot create native threads).
Having to do multiple test runs in the hope that we can get a non-zombie-making build or making
(arbitrary) rulings that the zombies are 'not related' is a productivity sink. And so on...
> This is an umbrella issue for a zombie stomping session that started earlier this week.
Will hang sub-issues of this one. Am running builds back-to-back on little cluster to turn
out the monsters.



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