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  1. Hive
  2. HIVE-7926 long-lived daemons for query fragment execution, I/O and caching
  3. HIVE-10113

LLAP: reducers running in LLAP starve out map retries

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Details

    • Sub-task
    • Status: Closed
    • Major
    • Resolution: Done
    • None
    • llap
    • llap
    • None

    Description

      When query 17 is run, some mappers from Map 1 currently fail (due to unwrap issue, and also due to HIVE-10112).
      This query has 1000+ reducers; if they are ran in llap, they all queue up, and the query locks up.
      If only mappers run in LLAP, query completes.

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            sseth Siddharth Seth
            sershe Sergey Shelukhin
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              Created:
              Updated:
              Resolved: