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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-5810

Unify mmap cache and short-circuit file descriptor cache

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Details

    • Sub-task
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 2.3.0
    • 2.4.0
    • hdfs-client
    • None

    Description

      We should unify the client mmap cache and the client file descriptor cache. Since mmaps are granted corresponding to file descriptors in the cache (currently FileInputStreamCache), they have to be tracked together to do "smarter" things like HDFS-5182.

      Attachments

        1. HDFS-5810.001.patch
          232 kB
          Colin McCabe
        2. HDFS-5810.004.patch
          249 kB
          Colin McCabe
        3. HDFS-5810.006.patch
          250 kB
          Colin McCabe
        4. HDFS-5810.008.patch
          259 kB
          Colin McCabe
        5. HDFS-5810.015.patch
          257 kB
          Colin McCabe
        6. HDFS-5810.016.patch
          259 kB
          Colin McCabe
        7. HDFS-5810.018.patch
          263 kB
          Colin McCabe
        8. HDFS-5810.019.patch
          259 kB
          Colin McCabe
        9. HDFS-5810.020.patch
          261 kB
          Colin McCabe
        10. HDFS-5810.021.patch
          262 kB
          Colin McCabe
        11. HDFS-5810.022.patch
          262 kB
          Colin McCabe

        Issue Links

        breaks

        Bug - A problem which impairs or prevents the functions of the product. HDFS-7005 DFS input streams do not timeout

        • Critical - Crashes, loss of data, severe memory leak.
        • Closed
        duplicates

        Bug - A problem which impairs or prevents the functions of the product. HDFS-5870 The legacy local reader stops working on block token expiration

        • Major - Major loss of function.
        • Closed

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            cmccabe Colin McCabe
            cmccabe Colin McCabe
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            Dates

              Created:
              Updated:
              Resolved:

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