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Posted to issues@hive.apache.org by "Prasanth Jayachandran (JIRA)" <ji...@apache.org> on 2016/08/01 08:12:20 UTC

[jira] [Updated] (HIVE-14397) Queries launched after reopening of tez session launches additional sessions

     [ https://issues.apache.org/jira/browse/HIVE-14397?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Prasanth Jayachandran updated HIVE-14397:
-----------------------------------------
    Status: Patch Available  (was: Open)

> 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
>         Attachments: HIVE-14397.1.patch
>
>
> 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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