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Posted to mapreduce-issues@hadoop.apache.org by "Sergey Murylev (JIRA)" <ji...@apache.org> on 2014/06/08 17:17:01 UTC

[jira] [Created] (MAPREDUCE-5918) LineRecordReader can return same decompressor to CodecPool multiple times

Sergey Murylev created MAPREDUCE-5918:
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             Summary: LineRecordReader can return same decompressor to CodecPool multiple times
                 Key: MAPREDUCE-5918
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5918
             Project: Hadoop Map/Reduce
          Issue Type: Bug
    Affects Versions: 2.3.0
            Reporter: Sergey Murylev
            Assignee: Sergey Murylev
            Priority: Minor


LineRecordReader can return same decompressor to CodecPool multiple times if method close() called multiple times. In this case CodecPool doesn't guarantee that it always return different decompressors. This issue can clause some difficult reproducible and difficult diagnosable bugs in Hadoop based programs. 



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