Uploaded image for project: 'Hadoop Common'
  1. Hadoop Common
  2. HADOOP-13738

DiskChecker should perform some disk IO

    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 2.9.0, 3.0.0-alpha2, 2.8.5
    • Component/s: None
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      DiskChecker can fail to detect total disk/controller failures indefinitely. We have seen this in real clusters. DiskChecker performs simple permissions-based checks on directories which do not guarantee that any disk IO will be attempted.

      A simple improvement is to write some data and flush it to the disk.

        Attachments

        1. HADOOP-13738.01.patch
          10 kB
          Arpit Agarwal
        2. HADOOP-13738.02.patch
          11 kB
          Arpit Agarwal
        3. HADOOP-13738.03.patch
          12 kB
          Arpit Agarwal
        4. HADOOP-13738.04.patch
          16 kB
          Arpit Agarwal
        5. HADOOP-13738.05.patch
          16 kB
          Arpit Agarwal
        6. HADOOP-13738-branch-2.8-06.patch
          17 kB
          Vinayakumar B

          Issue Links

            Activity

              People

              • Assignee:
                arpitagarwal Arpit Agarwal
                Reporter:
                arpitagarwal Arpit Agarwal
              • Votes:
                0 Vote for this issue
                Watchers:
                13 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved: