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  1. Hadoop HDFS
  2. HDFS-6581 Write to single replica in memory
  3. HDFS-6926

DN support for saving replicas to persistent storage and evicting in-memory replicas

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    Details

    • Type: Sub-task
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: HDFS-6581
    • Fix Version/s: 2.6.0
    • Component/s: datanode
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      Add the following:

      1. A lazy writer on the DN to move replicas from RAM disk to persistent storage.
      2. 'Evict' persisted replicas from RAM disk to make space for new blocks.

        Attachments

        1. HDFS-6926.01.patch
          39 kB
          Arpit Agarwal

          Activity

            People

            • Assignee:
              arp Arpit Agarwal
              Reporter:
              arp Arpit Agarwal
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              Dates

              • Created:
                Updated:
                Resolved: