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  1. Hadoop HDFS
  2. HDFS-8617

Throttle DiskChecker#checkDirs() speed.

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Details

    • Improvement
    • Status: Resolved
    • Major
    • Resolution: Duplicate
    • 2.7.0
    • 2.9.0, 3.0.0-beta1
    • datanode
    • None

    Description

      As described in HDFS-8564, DiskChecker.checkDirs(finalizedDir) is causing excessive I/Os because finalizedDirs might have up to 64K sub-directories (HDFS-6482).

      This patch proposes to limit the rate of IO operations in DiskChecker.checkDirs().

      Attachments

        1. HDFS-8617.000.patch
          16 kB
          Lei (Eddy) Xu

        Issue Links

          duplicates

          Bug - A problem which impairs or prevents the functions of the product. HDFS-8845 DiskChecker should not traverse the entire tree

          • Major - Major loss of function.
          • Closed
          is part of

          Bug - A problem which impairs or prevents the functions of the product. HDFS-8564 BlockPoolSlice.checkDirs() will trigger excessive IO while traversing all sub-directories under finalizedDir

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

          Activity

            People

              eddyxu Lei (Eddy) Xu
              eddyxu Lei (Eddy) Xu
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              Dates

                Created:
                Updated:
                Resolved: