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  1. Hadoop HDFS
  2. HDFS-611

Heartbeats times from Datanodes increase when there are plenty of blocks to delete

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 0.20.1, 0.21.0, 0.22.0
    • Fix Version/s: 0.21.0, 1.0.0
    • Component/s: datanode
    • Labels:
      None
    • Target Version/s:
    • Hadoop Flags:
      Reviewed

      Description

      I am seeing that when we delete a large directory that has plenty of blocks, the heartbeat times from datanodes increase significantly from the normal value of 3 seconds to as large as 50 seconds or so. The heartbeat thread in the Datanode deletes a bunch of blocks sequentially, this causes the heartbeat times to increase.

        Attachments

        1. HDFS-611.branch-19.patch
          8 kB
          Zheng Shao
        2. HDFS-611.branch-19.v2.patch
          8 kB
          Zheng Shao
        3. HDFS-611.branch-20.patch
          8 kB
          Zheng Shao
        4. HDFS-611.branch-20.v2.patch
          8 kB
          Zheng Shao
        5. HDFS-611.branch-20.v6.patch
          14 kB
          Zheng Shao
        6. HDFS-611.trunk.patch
          8 kB
          Zheng Shao
        7. HDFS-611.trunk.v2.patch
          8 kB
          Zheng Shao
        8. HDFS-611.trunk.v3.patch
          12 kB
          Zheng Shao
        9. HDFS-611.trunk.v4.patch
          15 kB
          Zheng Shao
        10. HDFS-611.trunk.v5.patch
          15 kB
          Zheng Shao
        11. HDFS-611.trunk.v6.patch
          15 kB
          Zheng Shao
        12. HDFS-611-branch-0.20-security.patch
          14 kB
          Jitendra Nath Pandey

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              • Assignee:
                zshao Zheng Shao
                Reporter:
                dhruba dhruba borthakur
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                Dates

                • Created:
                  Updated:
                  Resolved: