Hadoop Map/Reduce
  1. Hadoop Map/Reduce
  2. MAPREDUCE-3055

Simplify parameter passing to Application Master from Client. SImplify approach to pass info such appId, ClusterTimestamp and failcount required by App Master.

    Details

    • Type: Bug Bug
    • Status: Closed
    • Priority: Minor Minor
    • Resolution: Fixed
    • Affects Version/s: 0.23.0
    • Fix Version/s: 0.23.0
    • Component/s: mrv2
    • Labels:
      None
    • Hadoop Flags:
      Reviewed
    • Tags:
      mr2,mapreduce-2.0

      Description

      The Application master needs the application attempt id to register with the Applications Manager. To create an appAttemptId object, the appId object(needs cluster timestamp and app id) and failCount are needed.

      Currently, all clients need to pass in the appId, cluster timestamp and fail count to the app master for the required objects to be constructed.

      We could look at simplifying this by providing either placeholders that would have values replaced by the app master launcher or setting it into the environment ( although that requires a set of whitelisted env vars that can only be set by the yarn framework ).

      1. MAPREDUCE-3055-20110922.txt
        31 kB
        Vinod Kumar Vavilapalli
      2. MAPREDUCE-3055-20110923.txt
        33 kB
        Vinod Kumar Vavilapalli

        Activity

        No work has yet been logged on this issue.

          People

          • Assignee:
            Vinod Kumar Vavilapalli
            Reporter:
            Hitesh Shah
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            Dates

            • Created:
              Updated:
              Resolved:

              Development