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  1. Ratis
  2. RATIS-587

FinalizeLogSegment should flush the contents of log

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Details

    • Bug
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • None
    • 0.4.0
    • server
    • None

    Description

      SegmentedRaftLog uses a BufferedWriteChannel for writing the log.
      FinalizeLogSegment task is enqueued when a segment fills up. This task closes the channel and does cleanup.

      SegmentedRaftLogOutputStream.close() internally invokes BufferedWriteChannel.flush(false)
      the false passed to flush indicates not to flush the buffer cache.

      This means that the contents of the log file are not persisted on disk. An abrupt power failure could result in loss of committed log entries.

      Attachments

        1. r587_20190614.patch
          6 kB
          Tsz-wo Sze
        2. r587_20190613b.patch
          6 kB
          Tsz-wo Sze
        3. r587_20190613.patch
          2 kB
          Tsz-wo Sze

        Issue Links

          is depended upon by

          Improvement - An improvement or enhancement to an existing feature or task. RATIS-589 Eliminate buffer copying in SegmentedRaftLogOutputStream

          • Major - Major loss of function.
          • Resolved

          Activity

            People

              szetszwo Tsz-wo Sze
              sdeka Supratim Deka
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              Dates

                Created:
                Updated:
                Resolved: