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  1. Hadoop Common
  2. HADOOP-3283

Need a mechanism for data nodes to update generation stamps.

    Details

    • Type: New Feature
    • Status: Closed
    • Priority: 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:
      Hide
      Added an IPC server in DataNode and a new IPC protocol InterDatanodeProtocol. Added conf properties dfs.datanode.ipc.address and dfs.datanode.handler.count with defaults "0.0.0.0:50020" and 3, respectively.
      Changed the serialization in DatanodeRegistration and DatanodeInfo, and therefore, updated the versionID in ClientProtocol, DatanodeProtocol, NamenodeProtocol.
      Show
      Added an IPC server in DataNode and a new IPC protocol InterDatanodeProtocol. Added conf properties dfs.datanode.ipc.address and dfs.datanode.handler.count with defaults "0.0.0.0:50020" and 3, respectively. Changed the serialization in DatanodeRegistration and DatanodeInfo, and therefore, updated the versionID in ClientProtocol, DatanodeProtocol, NamenodeProtocol.

      Description

      For implementing file append feature (HADOOP-1700), a generation stamp is added to each block. We need a mechanism for data nodes to update generation stamps for lease recovery.

        Attachments

        1. 3283_20080425versionID.patch
          2 kB
          Tsz Wo Nicholas Sze
        2. 3283_20080424.patch
          28 kB
          Tsz Wo Nicholas Sze
        3. 3283_20080423c.patch
          23 kB
          Tsz Wo Nicholas Sze

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              • Assignee:
                szetszwo Tsz Wo Nicholas Sze
                Reporter:
                szetszwo Tsz Wo Nicholas Sze
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                Dates

                • Created:
                  Updated:
                  Resolved: