Uploaded image for project: 'Hadoop Common'
  1. Hadoop Common
  2. HADOOP-2649

The ReplicationMonitor sleep period should be configurable

    XMLWordPrintableJSON

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Blocker
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.16.0
    • Component/s: None
    • Labels:
      None

      Description

      The HDFS Namenode computes replication work for datanodes once every 3 seconds. This should be a configurable value. On large clusters, there could be many many blocks in the neededReplication queue and computing replication work for datanodes once every 3 seconds might consume lots of CPU on namenode.

        Attachments

        1. configurableReplicationPeriod.patch
          2 kB
          Dhruba Borthakur
        2. configurableReplicationPeriod.patch
          2 kB
          Dhruba Borthakur

          Issue Links

            Activity

              People

              • Assignee:
                dhruba Dhruba Borthakur
                Reporter:
                dhruba Dhruba Borthakur
              • Votes:
                0 Vote for this issue
                Watchers:
                0 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved: