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  1. Hadoop Map/Reduce
  2. MAPREDUCE-2150

RaidNode should periodically fix corrupt blocks

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    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.22.0
    • Component/s: contrib/raid
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      (Recreating HDFS-1171 since RAID is in mapreduce)

      RaidNode currently does not fix missing blocks. The missing blocks have to be fixed using RaidShell.
      This task proposes that recovery be more automated:
      1. RaidNode periodically fetches a list of corrupt files from the NameNode
      2. If the corrupt files can be fixed using RAID, it should generate the block.
      3. Choose a datanode and send the block contents along with checksum to the datanode.

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            • Assignee:
              rvadali Ramkumar Vadali Assign to me
              Reporter:
              rvadali Ramkumar Vadali

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                Resolved:

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