Uploaded image for project: 'Hadoop Map/Reduce'
  1. Hadoop Map/Reduce
  2. MAPREDUCE-1685

Debug statements affecting performance of JobTracker.heartbeat

    XMLWordPrintableJSON

Details

    • Bug
    • Status: Resolved
    • Major
    • Resolution: Duplicate
    • 0.20.1
    • 0.22.0
    • None
    • None

    Description

      Several debug statements that come in the critical section in JobTracker.heartbeat() are not protected by a LOG.isDebugEnabled() and so incur non-trivial costs, in the order of 15% of the total heartbeat processing time.

      Attachments

        Issue Links

          Activity

            People

              Unassigned Unassigned
              vinodkv Vinod Kumar Vavilapalli
              Votes:
              0 Vote for this issue
              Watchers:
              3 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved: