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From "Vaibhav Gumashta (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-5229) Better thread management for HiveServer2 async threads
Date Wed, 06 Nov 2013 21:50:17 GMT

     [ https://issues.apache.org/jira/browse/HIVE-5229?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vaibhav Gumashta updated HIVE-5229:
-----------------------------------

    Attachment: HIVE-5229.2.patch

[~thejas] [~cwsteinbach] Updated the patch.

> Better thread management for HiveServer2 async threads
> ------------------------------------------------------
>
>                 Key: HIVE-5229
>                 URL: https://issues.apache.org/jira/browse/HIVE-5229
>             Project: Hive
>          Issue Type: Improvement
>          Components: HiveServer2
>    Affects Versions: 0.12.0, 0.13.0
>            Reporter: Vaibhav Gumashta
>            Assignee: Vaibhav Gumashta
>             Fix For: 0.13.0
>
>         Attachments: HIVE-5229.1.patch, HIVE-5229.2.patch
>
>
> [HIVE-4617|https://issues.apache.org/jira/browse/HIVE-4617] provides support for async
execution in HS2. The async (background) thread pool currently creates N threads (server config),
which are alive all the time. If all the threads in the pool are busy, a new request is added
to a blocking queue. However, we can improve the strategy by not having all the async (background)
threads alive when there are no corresponding requests. The async threads should die after
a certain timeout if there are no new requests to handle. 



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