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Posted to issues@hive.apache.org by "Prasanth Jayachandran (Jira)" <ji...@apache.org> on 2020/02/10 03:12:00 UTC

[jira] [Assigned] (HIVE-22859) Tez external sessions are leaking

     [ https://issues.apache.org/jira/browse/HIVE-22859?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Prasanth Jayachandran reassigned HIVE-22859:
--------------------------------------------


> Tez external sessions are leaking
> ---------------------------------
>
>                 Key: HIVE-22859
>                 URL: https://issues.apache.org/jira/browse/HIVE-22859
>             Project: Hive
>          Issue Type: Bug
>    Affects Versions: 4.0.0
>            Reporter: Prasanth Jayachandran
>            Assignee: Prasanth Jayachandran
>            Priority: Major
>
> When Tez external/unmanaged sessions are used, TezSessionPoolManager "opens" the session using ApplicationId which is essentially connecting to existing external/unmanaged session. But when the session is returned it is not closed (close for external session is essentially releasing it from sessions list and not really killing the session). If a session is not closed, it is never removed from openSessions linked list that HS2 maintains hence leaking the session. 



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