Uploaded image for project: 'Hadoop HDFS'
  1. Hadoop HDFS
  2. HDFS-9701

DN may deadlock when hot-swapping under load

    XMLWordPrintableJSON

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 2.8.0, 3.0.0-alpha1
    • Component/s: None
    • Labels:
      None
    • Target Version/s:
    • Hadoop Flags:
      Reviewed

      Description

      If the DN is under load (new blocks being written), a hot-swap task by hdfs dfsadmin -reconfig may cause a dead lock.

        Attachments

        1. HDFS-9701.05.patch
          15 kB
          Xiao Chen
        2. HDFS-9701.04.patch
          15 kB
          Xiao Chen
        3. HDFS-9701.03.patch
          15 kB
          Xiao Chen
        4. HDFS-9701.02.patch
          20 kB
          Xiao Chen
        5. HDFS-9701.01.patch
          17 kB
          Xiao Chen

          Issue Links

          is related to

          Bug - A problem which impairs or prevents the functions of the product. HDFS-9781 FsDatasetImpl#getBlockReports can occasionally throw NullPointerException

          • Major - Major loss of function.
          • Resolved

            Activity

              People

              • Assignee:
                xiaochen Xiao Chen
                Reporter:
                xiaochen Xiao Chen
              • Votes:
                0 Vote for this issue
                Watchers:
                11 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved: