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  1. Hadoop HDFS
  2. HDFS-5182 BlockReaderLocal must allow zero-copy reads only when the DN believes it's valid
  3. HDFS-6061

Allow dfs.datanode.shared.file.descriptor.path to contain multiple entries and fall back when needed

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    Details

    • Type: Sub-task
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 2.4.0
    • Fix Version/s: 2.4.0
    • Component/s: datanode
    • Labels:
      None
    • Target Version/s:

      Description

      In SharedFileDescriptorFactory, it would be nice if dfs.datanode.shared.file.descriptor.path could contain multiple entries and allow fallback between them. That way, if a user doesn't have /dev/shm configured (the current default), the user could use /tmp. This is mainly a concern on BSDs and some other systems where /dev/shm doesn't exist.

        Attachments

        1. HDFS-6061.001.patch
          16 kB
          Colin P. McCabe
        2. HDFS-6061.002.patch
          16 kB
          Colin P. McCabe

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            People

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

              • Created:
                Updated:
                Resolved: