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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (HBASE-2890) Initialize RPC JMX metrics on startup
Date Fri, 30 Jul 2010 03:29:16 GMT

     [ https://issues.apache.org/jira/browse/HBASE-2890?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

stack resolved HBASE-2890.

    Hadoop Flags: [Reviewed]
      Resolution: Fixed

Committed to 0.89.20100726 branch and to TRUNK.  Thanks for the patch Gary.

> Initialize RPC JMX metrics on startup
> -------------------------------------
>                 Key: HBASE-2890
>                 URL: https://issues.apache.org/jira/browse/HBASE-2890
>             Project: HBase
>          Issue Type: Bug
>          Components: ipc
>            Reporter: Gary Helmling
>            Assignee: Gary Helmling
>            Priority: Minor
>             Fix For: 0.90.0
>         Attachments: HBASE-2890.patch
> Currently RPC call metrics are created dynamically based on cluster activity.  So when
monitoring via JMX, not all RPC statistics may be present in the exported MBean, depending
on what the past cluster activity has been.
> HBASE-2146 has previously added code to initialize the MBean attributes on startup for
all RPC methods, but in a way that depended on the defunct code -> method name mappings.
> This issue is to initialize the exported MBean attributes in a cleaner way, by introspecting
the RPC protocol interfaces (HMasterInterface, HMasterRegionInterface, HRegionInterface).

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