Spurious EOFExceptions reading SpillRecord index files
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                 Key: MAPREDUCE-2389
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2389
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: tasktracker
    Affects Versions: 0.22.0
         Environment: Seen on RHEL 5.5, RHEL 6.0, local dirs on ext3, Java 6u20 
and 6u24
            Reporter: Todd Lipcon
            Priority: Critical


In large jobs, I see around 1 shuffle fetch out of every million fetches fail 
with an EOFException reading the SpillRecord index file. After lots of 
investigation, including systemtap, it looks like the read() syscall is 
actually returning a premature "0" result for no reason, so this is likely a 
kernel or filesystem bug which is exacerbated by some workload the TT does.

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