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https://issues.apache.org/jira/browse/HBASE-1722?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12754383#action_12754383
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stack commented on HBASE-1722:
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Update: I committed patch added by Ryan to hbase-1687. His patch was almost
exactly the content of hbase-bin.patch above. My reasons for omitting
hbase-bin.patch didn't hold up under scrutiny. The HBASE_HEAPSIZE appears
before the HBASE_*_OPTS added by his patch (and by hbase-bin.patch) and because
the last -Xmx/-Xms wins, adding -Xmx/-Xms that override HBASE_HEAPSIZE works.
On commit of HBASE-1687, I amended the metrics.xml documentation to remove
mention of HBASE_*_OPTS addition now its no longer needed.
> Add support for exporting HBase metrics via JMX
> -----------------------------------------------
>
> Key: HBASE-1722
> URL: https://issues.apache.org/jira/browse/HBASE-1722
> Project: Hadoop HBase
> Issue Type: Improvement
> Components: ipc, master, regionserver
> Affects Versions: 0.19.3
> Reporter: Gary Helmling
> Priority: Minor
> Fix For: 0.21.0
>
> Attachments: hbase-bin.patch, jmx.patch, jmx_metrics-0.19.patch,
> jmx_support-trunk.patch, metrics_docs_0.19.patch, metrics_docs_trunk.patch
>
>
> Current HBase metrics collection and reporting (for the 0.19 releases at
> least) doesn't seem to export any of the metrics as MBeans via JMX.
> This patch adds JMX MBean support for reporting metrics collected in 3 areas:
> * org.apache.hadoop.hbase.ipc.HBaseRpcMetrics
> * org.apache.hadoop.hbase.master.metrics.MasterMetrics
> * org.apache.hadoop.hbase.regionserver.metrics.RegionServerMetrics
> This patch is only against the 0.19 branch, as the metrics API seems to have
> changed a bit in Hadoop 0.20, including adding support for dynamic MBeans.
> I'll add a patch reworked for trunk shortly.
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