Hadoop HDFS
  1. Hadoop HDFS
  2. HDFS-2281

NPE in checkpoint during processIOError()

    Details

    • Type: Bug Bug
    • Status: Resolved
    • Priority: Major Major
    • Resolution: Fixed
    • Affects Version/s: 0.22.0
    • Fix Version/s: 0.22.0
    • Component/s: namenode
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      At the end of checkpoint BackupNode tries to convergeJournalSpool() and calls revertFileStreams(). The latter closes each file stream, and tries to rename the corresponding file to its permanent location current/edits. If for any reason the rename fails processIOError() is called for failed streams. processIOError() will try to close the stream again and will get NPE in EditLogFileOutputStream.close() because bufCurrent was set to null by the previous close.

      1. BN-bug-NPE.txt
        5 kB
        Konstantin Shvachko
      2. HDFS-2281.patch
        7 kB
        Uma Maheswara Rao G
      3. HDFS-2281.1.patch
        6 kB
        Uma Maheswara Rao G

        Activity

          People

          • Assignee:
            Uma Maheswara Rao G
            Reporter:
            Konstantin Shvachko
          • Votes:
            0 Vote for this issue
            Watchers:
            4 Start watching this issue

            Dates

            • Created:
              Updated:
              Resolved:

              Development