[jira] [Updated] (MAPREDUCE-6334) Fetcher#copyMapOutput is leaking usedMemory upon IOException during InMemoryMapOutput shuffle handler

["Vinod Kumar Vavilapalli (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MAPREDUCE-6334?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vinod Kumar Vavilapalli updated MAPREDUCE-6334:
-----------------------------------------------
    Target Version/s: 2.7.1, 2.6.2  (was: 2.7.1)

Targeting 2.6.2 per Eric's comment in the mailing lists.

> 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
>             Fix For: 2.7.1
>
>         Attachments: MAPREDUCE-6334.001.patch, MAPREDUCE-6334.002.patch
>
>
> 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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