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  1. Hadoop HDFS
  2. HDFS-15048

Fix findbug in DirectoryScanner

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 3.3.0, 2.10.1
    • Component/s: None
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      There is a findbug in DirectoryScanner.

      Multithreaded correctness Warnings

org.apache.hadoop.hdfs.server.datanode.DirectoryScanner.reconcile() calls Thread.sleep() with a lock held
Bug type SWL_SLEEP_WITH_LOCK_HELD (click for details) 
In class org.apache.hadoop.hdfs.server.datanode.DirectoryScanner
In method org.apache.hadoop.hdfs.server.datanode.DirectoryScanner.reconcile()
At DirectoryScanner.java:[line 441]

      https://builds.apache.org/job/PreCommit-HDFS-Build/28498/artifact/out/branch-findbugs-hadoop-hdfs-project_hadoop-hdfs-warnings.html

        Attachments

        1. HDFS-15048.001.patch
          1 kB
          Masatake Iwasaki
        2. HDFS-15048-branch-2.10.002.patch
          0.7 kB
          Sean Chow

          Issue Links

          is caused by

          Improvement - An improvement or enhancement to an existing feature or task. HDFS-14476 lock too long when fix inconsistent blocks between disk and in-memory

          • Major - Major loss of function.
          • Resolved
          is related to

          Bug - A problem which impairs or prevents the functions of the product. HDFS-14751 Synchronize on diffs in DirectoryScanner

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Resolved

            Activity

              People

              • Assignee:
                iwasakims Masatake Iwasaki
                Reporter:
                tasanuma Takanobu Asanuma
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                Dates

                • Created:
                  Updated:
                  Resolved: