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Posted to dev@hive.apache.org by "Siddharth Seth (JIRA)" <ji...@apache.org> on 2016/02/25 23:02:18 UTC

[jira] [Created] (HIVE-13158) HiveServer should pick AMs which are already ready from the pool

Siddharth Seth created HIVE-13158:
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             Summary: HiveServer should pick AMs which are already ready from the pool
                 Key: HIVE-13158
                 URL: https://issues.apache.org/jira/browse/HIVE-13158
             Project: Hive
          Issue Type: Bug
            Reporter: Siddharth Seth


Scenario. Start HiveServer2 with 3 sessions. At startup there's capacity for this.
All 3 sessions time out.
There's capacity for one session only.
The first query submitted will start a session and use it.
The second query submitted (after the first one is submitted) ends up trying to launch a new session as well - instead of using the existing free session. Since there's no capacity, this ends up blocking.



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