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  1. Hadoop YARN
  2. YARN-9802 YARN Timeline Service v2 (post GA features)
  3. YARN-4786

Enhance hbase coprocessor aggregation operations:GLOBAL_MIN, LATEST_MIN etc and FINAL attributes



    • Type: Sub-task
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: timelineserver
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      As part of YARN-4062, Joep and I had been discussing about min, max operations and the final attributes.

      YARN-4062 has GLOBAL_MIN, GLOBAL_MAX and SUM operations. It presently indicates SUM_FINAL for a cell that contains a metric that is the final value for the metric.

      We should enhance this such that the set of aggregation dimensions SUM, MIN, MAX, etc. are really set of a per-column level and shouldn't be passed from the client, but be instrumented by the ColumnHelper infrastructure instead. We should probably use a different tag value for that.

      Both aggregation dimension and this "FINAL_VALUE" or whatever abbreviation we use are needed to determine the right thing to do for compaction. Only one value needs to have this final value bit / tag set.


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              • Assignee:
                vrushalic Vrushali C
                vrushalic Vrushali C
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