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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-5950

The DFSClient and DataNode should use shared memory segments to communicate short-circuit information

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Details

    • Sub-task
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 2.4.0
    • 2.4.0
    • datanode, hdfs-client
    • None

    Description

      The DFSClient and DataNode should use the shared memory segments and unified cache added in the other HDFS-5182 subtasks to communicate short-circuit information.

      Attachments

        1. HDFS-5950.001.patch
          122 kB
          Colin McCabe
        2. HDFS-5950.003.patch
          188 kB
          Colin McCabe
        3. HDFS-5950.004.patch
          188 kB
          Colin McCabe
        4. HDFS-5950.006.patch
          195 kB
          Colin McCabe
        5. HDFS-5950.007.patch
          195 kB
          Colin McCabe
        6. HDFS-5950.008.patch
          202 kB
          Colin McCabe

        Issue Links

          breaks

          Bug - A problem which impairs or prevents the functions of the product. HDFS-6052 TestBlockReaderLocal fails if native code is not loaded or platform is Windows.

          • Major - Major loss of function.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. HDFS-6051 HDFS cannot run on Windows since short-circuit shared memory segment changes.

          • Blocker - Blocks development and/or testing work, production could not run
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. HDFS-6059 TestBlockReaderLocal fails if native library is not available

          • Major - Major loss of function.
          • Closed
          is related to

          Sub-task - The sub-task of the issue HDFS-6040 fix DFSClient issue without libhadoop.so and some other ShortCircuitShm cleanups

          • Blocker - Blocks development and/or testing work, production could not run
          • Closed

          Activity

            People

              cmccabe Colin McCabe
              cmccabe Colin McCabe
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              Dates

                Created:
                Updated:
                Resolved: