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  1. Hadoop Common
  2. HADOOP-3283

Need a mechanism for data nodes to update generation stamps.

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Details

    • New Feature
    • Status: Closed
    • Major
    • Resolution: Fixed
    • None
    • 0.18.0
    • None
    • None
    • Incompatible change, Reviewed
    • 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.
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      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_20080423c.patch
          23 kB
          Tsz-wo Sze
        2. 3283_20080424.patch
          28 kB
          Tsz-wo Sze
        3. 3283_20080425versionID.patch
          2 kB
          Tsz-wo Sze

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              szetszwo Tsz-wo Sze
              szetszwo Tsz-wo Sze
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                Updated:
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