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  1. Hadoop Common
  2. HADOOP-7110

Implement chmod with JNI

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Details

    • Improvement
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 0.22.0
    • 0.22.0
    • io, native
    • None
    • Reviewed

    Description

      MapReduce is currently using a race-prone workaround to approximate chmod() because forking chmod is too expensive. This race is causing build failures (and probably task failures too). We should implement chmod in the NativeIO library so we can have good performance (ie not fork) and still not be prone to races.

      Attachments

        1. hadoop-7110.txt
          5 kB
          Todd Lipcon

        Issue Links

          blocks

          Bug - A problem which impairs or prevents the functions of the product. MAPREDUCE-2238 Undeletable build directories

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed
          is related to

          Improvement - An improvement or enhancement to an existing feature or task. HADOOP-6304 Use java.io.File.set{Readable|Writable|Executable} where possible in RawLocalFileSystem

          • Major - Major loss of function.
          • Resolved
          relates to

          Improvement - An improvement or enhancement to an existing feature or task. HADOOP-6304 Use java.io.File.set{Readable|Writable|Executable} where possible in RawLocalFileSystem

          • Major - Major loss of function.
          • Resolved

          Activity

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              tlipcon Todd Lipcon
              tlipcon Todd Lipcon
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              Dates

                Created:
                Updated:
                Resolved: