[jira] [Created] (YARN-3540) Fetcher#copyMapOutput is leaking usedMemory upon IOException during InMemoryMapOutput shuffle handler

[Eric Payne (JIRA)]

Eric Payne created YARN-3540:
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             Summary: Fetcher#copyMapOutput is leaking usedMemory upon 
IOException during InMemoryMapOutput shuffle handler
                 Key: YARN-3540
                 URL: https://issues.apache.org/jira/browse/YARN-3540
             Project: Hadoop YARN
          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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