Uploaded image for project: 'Hadoop HDFS'
  1. Hadoop HDFS
  2. HDFS-3540

Further improvement on recovery mode and edit log toleration in branch-1

    XMLWordPrintableJSON

Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 1.2.0
    • 1.2.0
    • namenode
    • None
    • Reviewed

    Description

      Recovery Mode: HDFS-3479 backported HDFS-3335 to branch-1. However, the recovery mode feature in branch-1 is dramatically different from the recovery mode in trunk since the edit log implementations in these two branch are different. For example, there is UNCHECKED_REGION_LENGTH in branch-1 but not in trunk.

      Edit Log Toleration: HDFS-3521 added this feature to branch-1 to remedy UNCHECKED_REGION_LENGTH and to tolerate edit log corruption.

      There are overlaps between these two features. We study potential further improvement in this issue.

      Attachments

        1. HDFS-3540-b1.004.patch
          31 kB
          Colin McCabe
        2. h3540_20121009.patch
          6 kB
          Tsz-wo Sze
        3. h3540_20120927.patch
          5 kB
          Tsz-wo Sze
        4. h3540_20120926.patch
          4 kB
          Tsz-wo Sze
        5. h3540_20120925.patch
          2 kB
          Tsz-wo Sze

        Issue Links

          is related to

          Improvement - An improvement or enhancement to an existing feature or task. HDFS-4782 backport edit log corruption toleration to branch-1-win

          • Major - Major loss of function.
          • Resolved

          Improvement - An improvement or enhancement to an existing feature or task. HDFS-3479 backport HDFS-3335 (check for edit log corruption at the end of the log) to branch-1

          • Major - Major loss of function.
          • Closed

          Improvement - An improvement or enhancement to an existing feature or task. HDFS-3521 Allow namenode to tolerate edit log corruption

          • Major - Major loss of function.
          • Closed

          Activity

            People

              szetszwo Tsz-wo Sze
              szetszwo Tsz-wo Sze
              Votes:
              0 Vote for this issue
              Watchers:
              14 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved: