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From "Todd Lipcon (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-6215) per-request profiling
Date Fri, 15 Jun 2012 22:29:42 GMT

    [ https://issues.apache.org/jira/browse/HBASE-6215?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13295963#comment-13295963
] 

Todd Lipcon commented on HBASE-6215:
------------------------------------

Cool. Our focus is more on (Dapper-like) tracing and a little less on metrics, but the two
are clearly related.
                
> per-request profiling
> ---------------------
>
>                 Key: HBASE-6215
>                 URL: https://issues.apache.org/jira/browse/HBASE-6215
>             Project: HBase
>          Issue Type: New Feature
>            Reporter: Kannan Muthukkaruppan
>            Assignee: Aurick Qiao
>
> Add ability to get HBase metrics back from an individual request. Apps can use this to
track fine-grained metrics (such as server-side latency, block cache access/hit count; sync
latency; append latency; etc.) on a per-API call basis. Also, enhance HBase shell to support
this feature. [For example, if in the shell we turn profiling on, for all subsequent requests
the profiling stats will be pretty printed, or optionally written to a file.]

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