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From "Prasanth Jayachandran (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-14397) Queries launched after reopening of tez session launches additional sessions
Date Mon, 01 Aug 2016 07:58:20 GMT
Prasanth Jayachandran created HIVE-14397:
--------------------------------------------

             Summary: Queries launched after reopening of tez session launches additional
sessions
                 Key: HIVE-14397
                 URL: https://issues.apache.org/jira/browse/HIVE-14397
             Project: Hive
          Issue Type: Bug
          Components: Tez
    Affects Versions: 2.1.0, 2.2.0
            Reporter: Takahiko Saito
            Assignee: Prasanth Jayachandran
            Priority: Critical


Say we have configured hive.server2.tez.default.queues with 2 queues q1 and q2 with default
expiry interval of 5 mins.

After 5 mins of non-usage the sessions corresponding to queues q1 and q2 will be expired.
When new set of queries are issue after this expiry, the default sessions backed by q1 and
q2 and reopened again. Now when we run more queries the reopened sessions are not used instead
new session is opened. 
At this point there will be 4 sessions running (2 abandoned sessions and 2 current sessions).





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