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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4117) Slow Query Log
Date Wed, 17 Aug 2011 00:59:28 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4117?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13086071#comment-13086071
] 

Andrew Purtell commented on HBASE-4117:
---------------------------------------

bq. This information resides in the TaskMonitor singleton, which can then be exposed any way
you like. I think this design makes a lot of sense; historical information goes in the main
log, while current status information can be queried from a clean interface and exposed any
way you like.

Fair enough. I stand corrected / mollified.

> Slow Query Log
> --------------
>
>                 Key: HBASE-4117
>                 URL: https://issues.apache.org/jira/browse/HBASE-4117
>             Project: HBase
>          Issue Type: New Feature
>          Components: ipc
>            Reporter: Riley Patterson
>            Assignee: Riley Patterson
>            Priority: Minor
>              Labels: client, ipc
>         Attachments: HBASE-4117.patch
>
>
> Produce log messages for slow queries. The RPC server will decide what is slow based
on a configurable "warn response time" parameter. Queries designated as slow will then output
a "response too slow" message followed by a fingerprint of the query, and a summary limited
in size by another configurable parameter (to limit log spamming).

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