Hadoop HDFS
  1. Hadoop HDFS
  2. HDFS-6682

Add a metric to expose the timestamp of the oldest under-replicated block

    Details

    • Type: Improvement Improvement
    • Status: Reopened
    • Priority: Major Major
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: None
    • Labels:
    • Target Version/s:

      Description

      In the following case, the data in the HDFS is lost and a client needs to put the same file again.

      1. A Client puts a file to HDFS
      2. A DataNode crashes before replicating a block of the file to other DataNodes

      I propose a metric to expose the timestamp of the oldest under-replicated/corrupt block. That way client can know what file to retain for the re-try.

      1. HDFS-6682.patch
        9 kB
        Akira AJISAKA
      2. HDFS-6682.002.patch
        10 kB
        Akira AJISAKA
      3. HDFS-6682.003.patch
        11 kB
        Akira AJISAKA
      4. HDFS-6682.004.patch
        9 kB
        Akira AJISAKA
      5. HDFS-6682.005.patch
        10 kB
        Akira AJISAKA
      6. HDFS-6682.006.patch
        10 kB
        Akira AJISAKA

        Activity

        No work has yet been logged on this issue.

          People

          • Assignee:
            Akira AJISAKA
            Reporter:
            Akira AJISAKA
          • Votes:
            1 Vote for this issue
            Watchers:
            9 Start watching this issue

            Dates

            • Created:
              Updated:

              Development