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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

    • Sub-task
    • Status: Closed
    • Major
    • Resolution: Fixed
    • HDFS-6581
    • 2.6.0
    • datanode
    • None
    • 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.

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            arp Arpit Agarwal Assign to me
            arp Arpit Agarwal
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              Updated:
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