Uploaded image for project: 'Hadoop Map/Reduce'
  1. Hadoop Map/Reduce
  2. MAPREDUCE-964

Inaccurate values in jobSummary logs

    XMLWordPrintableJSON

Details

    • Bug
    • Status: Closed
    • Critical
    • Resolution: Fixed
    • 0.20.1
    • 0.21.0
    • None
    • None
    • Reviewed
    • Updates to task timing information were fixed in some code paths that led to inconsistent metering of task run times. Also, checks were added to guard against inconsistencies and record information about state if they should happen to occur.

    Description

      For some jobs the mapSlotSeconds is incorrect.

      negative value

      09/09/01 18:31:44 INFOmapred.JobInProgress$JobSummary: jobId=job_200908270718_4568,submitTime=1251823543976,launchTime=1251823554310,finishTime=1251829904565, numMaps=7965,numSlotsPerMap=1,numReduces=40,numSlotsPerReduce=1,user=wile,queue=runner,status=SUCCEEDED, mapSlotSeconds=-2503133523,reduceSlotsSeconds=186536,clusterMapCapacity=11262,clusterReduceCapacity=3754

      or too high

      09/09/02 23:59:57 INFO mapred.JobInProgress$JobSummary: jobId=job_200908270718_5861,submitTime=1251935672924,launchTime=1251935687698,finishTime=1251935997949, numMaps=1026,numSlotsPerMap=1,numReduces=10,numSlotsPerReduce=1,user=dfsload,queue=gridops,status=SUCCEEDED,
      mapSlotSeconds=1251949742,reduceSlotsSeconds=537,clusterMapCapacity=11262,clusterReduceCapacity=3754

      Attachments

        1. mapreduce-964-1.patch
          2 kB
          Sreekanth Ramakrishnan
        2. mapreduce-964-ydist.patch
          5 kB
          Sreekanth Ramakrishnan
        3. mapreduce-964-2.patch
          6 kB
          Sreekanth Ramakrishnan
        4. mapreduce-964-ydist.patch
          6 kB
          Sreekanth Ramakrishnan
        5. mapreduce-964-3.patch
          6 kB
          Sreekanth Ramakrishnan
        6. MAPREDUCE-964-4.patch
          7 kB
          Hemanth Yamijala
        7. mapreduce-964-ydist-1.patch
          0.5 kB
          Sreekanth Ramakrishnan

        Activity

          People

            sreekanth Sreekanth Ramakrishnan
            rajive Rajiv Chittajallu
            Votes:
            0 Vote for this issue
            Watchers:
            5 Start watching this issue

            Dates

              Created:
              Updated:
              Resolved: