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  1. Hive
  2. HIVE-7926 long-lived daemons for query fragment execution, I/O and caching
  3. HIVE-10334

LLAP: Self-joins with the cache enabled

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Details

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

    Description

      Looks like reading the same split from 2 tasks in the same process might have some corner cases.

      hive> select count(1) from tpch_orc_snappy_1000.region y join tpch_orc_snappy_1000.region x;
OK
0

      hive> set hive.llap.io.enabled=false;
hive> select count(1) from tpch_orc_snappy_1000.region y join tpch_orc_snappy_1000.region x;
OK
25

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            sershe Sergey Shelukhin
            gopalv Gopal Vijayaraghavan
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            Dates

              Created:
              Updated:
              Resolved: