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  1. Hadoop Common
  2. HADOOP-4810

Data lost at cluster startup time

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Details

    • Bug
    • Status: Closed
    • Blocker
    • Resolution: Fixed
    • 0.18.2
    • 0.18.3
    • None
    • None
    • Reviewed

    Description

      hadoop dfs -cat file1 returns
      dfs.DFSClient: Could not obtain block blk_XX_0 from any node: java.io.IOException: No live nodes contain current block

      Tracing the history of the block from NN log, we found
      WARN org.apache.hadoop.fs.FSNamesystem: Inconsistent size for block blk_-6160940519231606858_0 reported from A1.A2.A3.A4:50010 current size is 9303872 reported size is 262144
      WARN org.apache.hadoop.fs.FSNamesystem: Deleting block blk_-6160940519231606858_0 from A1.A2.A3.A4:50010
      INFO org.apache.hadoop.dfs.StateChange: DIR* NameSystem.invalidateBlock: blk_-6160940519231606858_0 on A1.A2.A3.A4:50010
      WARN org.apache.hadoop.fs.FSNamesystem: Error in deleting bad block blk_-6160940519231606858_0 org.apache.hadoop.dfs.SafeModeException: Cannot invalidate block blk_-6160940519231606858_0. Name node is in safe mode.
      WARN org.apache.hadoop.fs.FSNamesystem: Inconsistent size for block blk_-6160940519231606858_0 reported from B1.B2.B3.B4:50010 current size is 9303872 reported size is 306688
      WARN org.apache.hadoop.fs.FSNamesystem: Deleting block blk_-6160940519231606858_0 from B1.B2.B3.B4:50010
      INFO org.apache.hadoop.dfs.StateChange: DIR* NameSystem.invalidateBlock: blk_-6160940519231606858_0 on B1.B2.B3.B4:50010
      WARN org.apache.hadoop.fs.FSNamesystem: Error in deleting bad block blk_-6160940519231606858_0 org.apache.hadoop.dfs.SafeModeException: Cannot invalidate block blk_-6160940519231606858_0. Name node is in safe mode.
      INFO org.apache.hadoop.dfs.StateChange: BLOCK* NameSystem.chooseExcessReplicates: (C1.C2.C3.C4:50010, blk_-6160940519231606858_0) is added to recentInvalidateSets
      INFO org.apache.hadoop.dfs.StateChange: BLOCK* NameSystem.chooseExcessReplicates: (D1.D2.D3.D4:50010, blk_-6160940519231606858_0) is added to recentInvalidateSets
      INFO org.apache.hadoop.dfs.StateChange: BLOCK* ask C1.C2.C3.C4:50010 to delete blk_-6160940519231606858_0
      INFO org.apache.hadoop.dfs.StateChange: BLOCK* ask D1.D2.D3.D4:50010 to delete blk_-6160940519231606858_0

      Attachments

        1. corruptBlocksStartup1-br18.patch
          6 kB
          Hairong Kuang
        2. corruptBlocksStartup1.patch
          6 kB
          Hairong Kuang
        3. corruptBlocksStartup.patch
          6 kB
          Hairong Kuang

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              hairong Hairong Kuang
              hairong Hairong Kuang
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              Dates

                Created:
                Updated:
                Resolved: