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From "Li Pi (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (HBASE-6216) per-request tagging
Date Wed, 15 Aug 2012 19:57:38 GMT

     [ https://issues.apache.org/jira/browse/HBASE-6216?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Li Pi reassigned HBASE-6216:
----------------------------

    Assignee: Li Pi  (was: Aurick Qiao)
    
> per-request tagging
> -------------------
>
>                 Key: HBASE-6216
>                 URL: https://issues.apache.org/jira/browse/HBASE-6216
>             Project: HBase
>          Issue Type: New Feature
>            Reporter: Kannan Muthukkaruppan
>            Assignee: Li Pi
>
> Allow applications to tag individual RPC requests so that metrics exposed by HBase can
automatically be collected/aggregated by those tags. This'll be useful for problem diagnosis
across various applications-- as it will allow us to correlate HBase metrics (such as data
block misses) back to application level tags.
> For example, 
> * in some multi-tenancy type use case where many different applications are served out
of a single Table or CF, it'll be useful to know the break down of metrics (such as bytes
read, data block misses, get/put RPC calls, etc.) by application name (tag).
> * even in a single app environment, the app may want to tag different API calls with
different tags even if those calls are to the same CF.

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