[jira] Commented: (HBASE-1722) Add support for exporting HBase metrics via JMX

["stack (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-1722?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12751302#action_12751302 ] 

stack commented on HBASE-1722:
------------------------------

@Gary:

I reviewed patch for TRUNK.  Its great.  I like the addition to monitoring docs particularly.  Before applying, do you want to add in JMX environment variables to hbase-env.sh and include them in bin/hbase.sh rather than have users copy and paste out of the monitoring documentation?  (Default, the JMX env variables can be null).

Otherwise, was going to apply to TRUNK and branch so would be in 0.20.1.

Thanks.

> 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: 0.20.1
>
>         Attachments: 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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