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Posted to mapreduce-issues@hadoop.apache.org by "Karthik Kambatla (JIRA)" <ji...@apache.org> on 2015/04/23 23:34:39 UTC
[jira] [Moved] (MAPREDUCE-6334) Fetcher#copyMapOutput is leaking
usedMemory upon IOException during InMemoryMapOutput shuffle handler
[ https://issues.apache.org/jira/browse/MAPREDUCE-6334?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Karthik Kambatla moved YARN-3540 to MAPREDUCE-6334:
---------------------------------------------------
Target Version/s: 2.7.1 (was: 2.7.1)
Affects Version/s: (was: 2.7.0)
2.7.0
Key: MAPREDUCE-6334 (was: YARN-3540)
Project: Hadoop Map/Reduce (was: Hadoop YARN)
> Fetcher#copyMapOutput is leaking usedMemory upon IOException during InMemoryMapOutput shuffle handler
> -----------------------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-6334
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-6334
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Affects Versions: 2.7.0
> Reporter: Eric Payne
> Assignee: Eric Payne
> Priority: Blocker
>
> We are seeing this happen when
> - an NM's disk goes bad during the creation of map output(s)
> - the reducer's fetcher can read the shuffle header and reserve the memory
> - but gets an IOException when trying to shuffle for InMemoryMapOutput
> - shuffle fetch retry is enabled
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