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From "Thejas M Nair (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-10725) Better resource management in HiveServer2
Date Wed, 20 May 2015 00:24:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-10725?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14551539#comment-14551539
] 

Thejas M Nair commented on HIVE-10725:
--------------------------------------

The work in HIVE-10761 will also help to improve HS2 uptime, by making it easier to monitor


> Better resource management in HiveServer2
> -----------------------------------------
>
>                 Key: HIVE-10725
>                 URL: https://issues.apache.org/jira/browse/HIVE-10725
>             Project: Hive
>          Issue Type: Improvement
>          Components: HiveServer2, JDBC
>    Affects Versions: 1.3.0
>            Reporter: Vaibhav Gumashta
>
> We have various ways to control the number of queries that can be run on one HS2 instance
(max threads, thread pool queuing etc). We also have ways to run multiple HS2 instances using
dynamic service discovery. We should do a better job at:
> 1. Monitoring resource utilization (sessions, ophandles, memory, threads etc).
> 2. Being upfront to the client when we cannot accept new queries.
> 3. Throttle among different server instances in case dynamic service discovery is used.
> 4. Consolidate existing ways to control #queries into a simpler model.
> 5. See if we can recommend reasonable values for OS resources or provide alerts if we
run out of those.
> 6. Health reports, server status API (to get number of queries, sessions etc).



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