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  1. Hadoop Common
  2. HADOOP-6433

Add AsyncDiskService that is used in both hdfs and mapreduce

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Details

    • New Feature
    • Status: Closed
    • Major
    • Resolution: Fixed
    • None
    • 0.21.0
    • None
    • None
    • Reviewed
    • HADOOP-6433. Add AsyncDiskService for asynchronous disk services.

    Description

      Both MAPREDUCE-1213 and HDFS-611 are using a class called AsyncDiskService.
      The idea is to create a thread pool per disk volume, and use that for scheduling async disk operations.

      Attachments

        1. HADOOP-6433.1.patch
          7 kB
          Zheng Shao
        2. HADOOP-6433.2.patch
          8 kB
          Zheng Shao
        3. HADOOP-6433.3.branch_20.patch
          8 kB
          Zheng Shao
        4. HADOOP-6433.3.patch
          8 kB
          Zheng Shao

        Issue Links

          blocks

          Bug - A problem which impairs or prevents the functions of the product. HDFS-611 Heartbeats times from Datanodes increase when there are plenty of blocks to delete

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MAPREDUCE-1213 TaskTrackers restart is very slow because it deletes distributed cache directory synchronously

          • Major - Major loss of function.
          • Closed

          Activity

            People

              zshao Zheng Shao
              zshao Zheng Shao
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              Dates

                Created:
                Updated:
                Resolved: