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From "Jimmy Xiang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-12987) Add metrics for HS2 active users and SQL operations
Date Sat, 06 Feb 2016 04:37:39 GMT

    [ https://issues.apache.org/jira/browse/HIVE-12987?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15135580#comment-15135580
] 

Jimmy Xiang commented on HIVE-12987:
------------------------------------

Do you mean the user queries map? It is used to track active unique users. It is a metrics
emitted to JMX/file so that users can find out how many active users are executing queries
at a given time. This map is needed to not count the same user many times if s/he are running
several queries at the same time.

> Add metrics for HS2 active users and SQL operations
> ---------------------------------------------------
>
>                 Key: HIVE-12987
>                 URL: https://issues.apache.org/jira/browse/HIVE-12987
>             Project: Hive
>          Issue Type: Task
>            Reporter: Jimmy Xiang
>            Assignee: Jimmy Xiang
>         Attachments: HIVE-12987.1.patch, HIVE-12987.2.patch, HIVE-12987.2.patch, HIVE-12987.3.patch
>
>
> HIVE-12271 added metrics for all HS2 operations. Sometimes, users are also interested
in metrics just for SQL operations.
> It is useful to track active user count as well.



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