Hadoop Map/Reduce
  1. Hadoop Map/Reduce
  2. MAPREDUCE-3720

Command line listJobs should not visit each AM

    Details

    • Type: Bug Bug
    • Status: Closed
    • Priority: Major Major
    • Resolution: Fixed
    • Affects Version/s: 0.23.0
    • Fix Version/s: 0.23.1
    • Component/s: client, mrv2
    • Labels:
      None
    • Hadoop Flags:
      Incompatible change, Reviewed
    • Release Note:
      Hide
      Changed bin/mapred job -list to not print job-specific information not available at RM.

      Very minor incompatibility in cmd-line output, inevitable due to MRv2 architecture.
      Show
      Changed bin/mapred job -list to not print job-specific information not available at RM. Very minor incompatibility in cmd-line output, inevitable due to MRv2 architecture.

      Description

      When the RM has a large number of jobs, bin/mapred job -list takes a long time as it visits each AM to get information like num-maps, num-reduces etc.

      We should move all per-AM information to bin/mapred job -status and keep the list just a list.

      1. MAPREDUCE-3720-20120124.txt
        10 kB
        Vinod Kumar Vavilapalli

        Issue Links

          Activity

          Arun C Murthy made changes -
          Status Resolved [ 5 ] Closed [ 6 ]
          Vinod Kumar Vavilapalli made changes -
          Link This issue duplicates MAPREDUCE-3668 [ MAPREDUCE-3668 ]
          Arun C Murthy made changes -
          Status Patch Available [ 10002 ] Resolved [ 5 ]
          Hadoop Flags Incompatible change,Reviewed [ 10342,10343 ]
          Release Note Changed bin/mapred job -list to not print job-specific information not available at RM.

          Very minor incompatibility in cmd-line output, inevitable due to MRv2 architecture.
          Resolution Fixed [ 1 ]
          Vinod Kumar Vavilapalli made changes -
          Status Open [ 1 ] Patch Available [ 10002 ]
          Vinod Kumar Vavilapalli made changes -
          Attachment MAPREDUCE-3720-20120124.txt [ 12511772 ]
          Vinod Kumar Vavilapalli made changes -
          Field Original Value New Value
          Description When the RM has a large number of jobs, {{bin/mapred job -list}} takes a long time as it visits each AM to get information like map-progress, reduce-progress etc.

          We should move all per-AM information to {{bin/mapred job -status}} and keep the list just a list.
          When the RM has a large number of jobs, {{bin/mapred job -list}} takes a long time as it visits each AM to get information like num-maps, num-reduces etc.

          We should move all per-AM information to {{bin/mapred job -status}} and keep the list just a list.
          Vinod Kumar Vavilapalli created issue -

            People

            • Assignee:
              Vinod Kumar Vavilapalli
              Reporter:
              Vinod Kumar Vavilapalli
            • Votes:
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              Watchers:
              3 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved:

                Development