[jira] [Commented] (HBASE-3780) Expose JMX Management of at least the JVM

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

    [ https://issues.apache.org/jira/browse/HBASE-3780?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14260386#comment-14260386 ] 

stack commented on HBASE-3780:
------------------------------

Would be good to add hbase commands, things we do in shell, as beans but pure nice-to-have.

> Expose JMX Management of at least the JVM
> -----------------------------------------
>
>                 Key: HBASE-3780
>                 URL: https://issues.apache.org/jira/browse/HBASE-3780
>             Project: HBase
>          Issue Type: New Feature
>            Reporter: stack
>
> IIRC, you can run a full gc via JMX JVM management bean.  We should expose JMX management of JVM at least and then down the road of HBase functions.  We want the full gc to implement suggestion of todds over in HBASE-3441 where we'd have a regionserver unload its regions gracefully, we'd then do a full gc, then we'd move the regions back on again. HBASE-3071 added a script to move regions off and on and to restart the server.  We could add a flag to the script that invoked the full gc via JMX.
> Benoit has some trick for doing JMX w/o having to enable the JMX Mgt of JVM with java options IIUC.



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