XMLWordPrintableJSON

    Details

    • Type: New Feature
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.12.0
    • Component/s: None
    • Labels:
      None

      Description

      It would be nice to have map / reduce job keep aggregated counts for arbitrary events occuring in its tasks – the numer of records processed, the numer of exceptions of a specific type, the number of sentences in passive voice, whatever the jobs finds useful.

      This can be implemented by tasks periodically sending <name, value> pairs to the jobtracker (in some implementations such messages are piggy-backed on the heartbeats), so that the job tracker stores all the latests values from each task and aggregates them on a request. It should also make the aggregated values available at the job end. The value for a task would be flushed when the task fails.

      #491 and #490 may be related to this one.

        Attachments

        1. counters1.patch
          58 kB
          David Bowen
        2. counters2.patch
          62 kB
          David Bowen
        3. counters3.patch
          62 kB
          David Bowen

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              • Assignee:
                dbowen David Bowen
                Reporter:
                arkady arkady borkovsky
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                Dates

                • Created:
                  Updated:
                  Resolved: