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  1. Hadoop Common
  2. HADOOP-4692

Namenode in infinite loop for replicating/deleting corrupted block

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 0.18.0
    • Fix Version/s: 0.20.0
    • Component/s: None
    • Labels:
      None

      Description

      Our cluster has an under-replicated block with only one replica, assuming its block id is B. NameNode log shows that NameNode is in an infinite loop replicating/deleting the block.

      INFO org.apache.hadoop.dfs.StateChange: BLOCK* ask DN1 to replicate blk_B to datanode(s) DN2, DN3
      WARN org.apache.hadoop.fs.FSNamesystem: Inconsistent size for block blk_B reported from DN2 current size is 134217728 reported size is 134205440
      WARN org.apache.hadoop.fs.FSNamesystem: Deleting block blk_B from DN2
      INFO org.apache.hadoop.dfs.StateChange: DIR* NameSystem.invalidateBlock: blk_B on DN2
      INFO org.apache.hadoop.dfs.StateChange: BLOCK* NameSystem.delete: blk_B is added to invalidSet of DN2
      INFO org.apache.hadoop.dfs.StateChange: BLOCK* NameSystem.addStoredBlock: blockMap updated: DN2 is added to blk_B size 134217728
      WARN org.apache.hadoop.fs.FSNamesystem: Inconsistent size for block blk_-B reported from DN3 current size is 134217728 reported size is 134205440
      WARN org.apache.hadoop.fs.FSNamesystem: Deleting block blk_B from DN3
      INFO org.apache.hadoop.dfs.StateChange: DIR* NameSystem.invalidateBlock: blk_B on DN3
      INFO org.apache.hadoop.dfs.StateChange: BLOCK* NameSystem.delete: blk_B is added to invalidSet of DN3
      INFO org.apache.hadoop.dfs.StateChange: BLOCK* NameSystem.addStoredBlock: blockMap updated: DN3 is added to blk_B size 134217728
      INFO org.apache.hadoop.dfs.StateChange: BLOCK* ask DN1 to replicate blk_B to datanode(s) DN4, DN5
      ...

        Attachments

        1. namenode_inconsistent_size.patch
          4 kB
          Brian Bockelman
        2. truncateBlockReplication.patch
          6 kB
          Hairong Kuang
        3. mismatchBlockReplication.patch
          7 kB
          Hairong Kuang
        4. mismatchBlockReplication1.patch
          6 kB
          Hairong Kuang

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              • Assignee:
                hairong Hairong Kuang
                Reporter:
                hairong Hairong Kuang
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                Dates

                • Created:
                  Updated:
                  Resolved: