Uploaded image for project: 'Hadoop Common'
  1. Hadoop Common
  2. HADOOP-76

Implement speculative re-execution of reduces

    XMLWordPrintableJSON

Details

    • Improvement
    • Status: Closed
    • Minor
    • Resolution: Fixed
    • 0.1.0
    • 0.9.0
    • None
    • None

    Description

      As a first step, reduce task outputs should go to temporary files which are renamed when the task completes.

      Attachments

        1. spec_reducev.patch
          12 kB
          Johan Oskarsson
        2. Hadoop-76.patch
          9 kB
          Sanjay Dahiya
        3. Hadoop-76_1.patch
          26 kB
          Sanjay Dahiya
        4. Hadoop-76_2.patch
          30 kB
          Sanjay Dahiya
        5. Hadoop-76_3.patch
          30 kB
          Sanjay Dahiya
        6. Hadoop-76_4.patch
          30 kB
          Sanjay Dahiya
        7. Hadoop-76_5.patch
          30 kB
          Sanjay Dahiya
        8. Hadoop-76_6.patch
          28 kB
          Sanjay Dahiya

        Issue Links

          depends upon

          Bug - A problem which impairs or prevents the functions of the product. HADOOP-737 TaskTracker's job cleanup loop should check for finished job before deleting local directories

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

          Improvement - An improvement or enhancement to an existing feature or task. HADOOP-253 we need speculative execution for reduces

          • Major - Major loss of function.
          • Closed

          Activity

            People

              sanjay.dahiya Sanjay Dahiya
              cutting Doug Cutting
              Votes:
              1 Vote for this issue
              Watchers:
              2 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved: