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From "BELUGA BEHR (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-6928) BackupStore Should Checksum Files Persisted To Disk
Date Wed, 02 Aug 2017 18:53:00 GMT
BELUGA BEHR created MAPREDUCE-6928:
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             Summary: BackupStore Should Checksum Files Persisted To Disk
                 Key: MAPREDUCE-6928
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6928
             Project: Hadoop Map/Reduce
          Issue Type: Improvement
          Components: mrv2
    Affects Versions: 3.0.0-alpha4, 2.8.1
            Reporter: BELUGA BEHR
            Priority: Minor


The class {{org.apache.hadoop.mapred.BackupStore}} persists data to memory or disk.  Like
the {{IFile}} format that this class works in tandem with, the data in {{BackupStore}} should
be under a check sum to prevent otherwise good data from becoming corrupt.



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