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https://issues.apache.org/jira/browse/HBASE-6215?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13295958#comment-13295958
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Kannan Muthukkaruppan commented on HBASE-6215:
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@ There's change to the RPC (that might be specific to 89-fb, given that trunk
has moved on to PB). And the changes to the server side, i.e. what stats we
collect and send back could likely be largely shared. In step 1, Aurick has
focused on the first part and is now starting to look at the specific metrics
we want to send back as the next step. Makes sense to discuss/collaborate on
the ideas.
> 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 also 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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