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  1. Hadoop HDFS
  2. HDFS-4949 Centralized cache management in HDFS
  3. HDFS-5394

fix race conditions in DN caching and uncaching

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    Details

    • Type: Sub-task
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 3.0.0-alpha1
    • Fix Version/s: 2.3.0
    • Component/s: datanode, namenode
    • Labels:
      None
    • Target Version/s:

      Description

      The DN needs to handle situations where it is asked to cache the same replica more than once. (Currently, it can actually do two mmaps and mlocks.) It also needs to handle the situation where caching a replica is cancelled before said caching completes.

        Attachments

        1. HDFS-5394-caching.001.patch
          43 kB
          Colin McCabe
        2. HDFS-5394-caching.002.patch
          43 kB
          Colin McCabe
        3. HDFS-5394-caching.003.patch
          43 kB
          Colin McCabe
        4. HDFS-5394-caching.004.patch
          44 kB
          Colin McCabe
        5. HDFS-5394.005.patch
          44 kB
          Colin McCabe
        6. HDFS-5394.006.patch
          46 kB
          Colin McCabe
        7. HDFS-5394.007.patch
          50 kB
          Colin McCabe
        8. HDFS-5394.008.patch
          50 kB
          Colin McCabe
        9. HDFS-5394.009.patch
          50 kB
          Colin McCabe

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              • Assignee:
                cmccabe Colin McCabe
                Reporter:
                cmccabe Colin McCabe
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                Dates

                • Created:
                  Updated:
                  Resolved: