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  1. Hadoop HDFS
  2. HDFS-8681

BlockScanner is incorrectly disabled by default

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Blocker
    • Resolution: Fixed
    • Affects Version/s: 2.7.0
    • Fix Version/s: 2.8.0, 2.7.1, 3.0.0-alpha1
    • Component/s: datanode
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      This code is used to check whether the block scanner is enabled:

        public boolean isEnabled() {
          return (conf.scanPeriodMs) > 0 && (conf.targetBytesPerSec > 0);
        }
      

      Unfortunately, when this was introduced, we did not change the default scan period's value of 0, which means by default the BlockScanner is disabled.

        Attachments

        1. HDFS-8681.01.patch
          0.8 kB
          Arpit Agarwal
        2. HDFS-8681.02.patch
          4 kB
          Arpit Agarwal
        3. HDFS-8681.03.patch
          5 kB
          Arpit Agarwal
        4. HDFS-8681.04.patch
          6 kB
          Arpit Agarwal

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              • Assignee:
                arpitagarwal Arpit Agarwal
                Reporter:
                andrew.wang Andrew Wang
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                Dates

                • Created:
                  Updated:
                  Resolved: