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  1. Hive
  2. HIVE-21813 Get the LlapDaemon metrics from TezAM
  3. HIVE-21847

Reduce the communication rate between TezAM and LlapDaemons for Llap statistics

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Details

    • Sub-task
    • Status: Open
    • Major
    • Resolution: Unresolved
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    Description

      HIVE-21846 is suboptimal if we have big number of TezAMs and LlapDaemons.

      We have to find a better way which is scaleable.

      Possible solution could be:

      • Elect a TezAM leader for statistics fetching using ZooKeeper for the election
      • TezAM should become a leader and fetch LlapDaemon data from the Daemons if there is no existing leader
      • TezAM should query the data from the leader TezAM if there is an existing leader.

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            Unassigned Unassigned
            pvary Peter Vary
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            Dates

              Created:
              Updated: