Hadoop Common
  1. Hadoop Common
  2. HADOOP-3329

DatanodeDescriptor objects stored in FSImage may be out dated.

    Details

    • Type: Bug Bug
    • Status: Closed
    • Priority: Major Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.18.0
    • Component/s: None
    • Labels:
      None
    • Hadoop Flags:
      Incompatible change, Reviewed
    • Release Note:
      Changed format of file system image to not store locations of last block.

      Description

      INodeFileUnderConstruction.targets is a DatanodeDescriptor array which stores the locations for last block. These DatanodeDescriptors are serialized and stored in the FSImage. However, a DatanodeDescriptor contains information like IP address and ports. These information may be out dated after a datanode restart.

      We should probably only stored the storageID of a DatanodeDescriptor in FSImage and then lookup the DatanodeDescriptor object from the datanodeMap.

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            People

            • Assignee:
              dhruba borthakur
              Reporter:
              Tsz Wo Nicholas Sze
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              Dates

              • Created:
                Updated:
                Resolved:

                Development