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  1. Hadoop Common
  2. HADOOP-15450

Avoid fsync storm triggered by DiskChecker and handle disk full situation

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Details

    • Bug
    • Status: Resolved
    • Blocker
    • Resolution: Fixed
    • None
    • 3.1.0, 2.10.0, 3.2.0, 3.1.1, 2.9.2, 3.0.3, 2.8.5
    • None
    • None

    Description

      Fix disk checker issues reported by kihwal in HADOOP-13738

      There are non-hdfs users of DiskChecker, who use it proactively, not just on failures. This was fine before, but now it incurs heavy I/O due to introduction of fsync() in the code.

      Attachments

        1. HADOOP-15450.01.patch
          6 kB
          Arpit Agarwal
        2. HADOOP-15450.02.patch
          13 kB
          Arpit Agarwal

        Issue Links

          blocks

          Bug - A problem which impairs or prevents the functions of the product. HDFS-13538 HDFS DiskChecker should handle disk full situation

          • Critical - Crashes, loss of data, severe memory leak.
          • Open
          is broken by

          Improvement - An improvement or enhancement to an existing feature or task. HADOOP-13738 DiskChecker should perform some disk IO

          • Major - Major loss of function.
          • Resolved

          Activity

            People

              arp Arpit Agarwal
              kihwal Kihwal Lee
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              Dates

                Created:
                Updated:
                Resolved: