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From "Lefty Leverenz (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-12431) Support timeout for compile lock
Date Sat, 02 Jan 2016 07:54:39 GMT

    [ https://issues.apache.org/jira/browse/HIVE-12431?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15076463#comment-15076463
] 

Lefty Leverenz commented on HIVE-12431:
---------------------------------------

Doc note:  The new configuration parameter *hive.server2.compile.lock.timeout* will need to
be documented for release 2.1.0 in the HiveServer2 section of Configuration Properties.

* [Configuration Properties -- HiveServer2 | https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties#ConfigurationProperties-HiveServer2]

> Support timeout for compile lock
> --------------------------------
>
>                 Key: HIVE-12431
>                 URL: https://issues.apache.org/jira/browse/HIVE-12431
>             Project: Hive
>          Issue Type: Improvement
>          Components: HiveServer2, Query Processor
>    Affects Versions: 1.2.1
>            Reporter: Lenni Kuff
>            Assignee: Mohit Sabharwal
>              Labels: TODOC2.1
>             Fix For: 2.1.0
>
>         Attachments: HIVE-12431.1.patch, HIVE-12431.2.patch, HIVE-12431.3.patch, HIVE-12431.3.patch,
HIVE-12431.patch
>
>
> To help with HiveServer2 scalability, it would be useful to allow users to configure
a timeout value for queries waiting to be compiled. If the timeout value is reached then the
query would abort. One option to achieve this would be to update the compile lock to use a
try-lock with the timeout value.



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