[
https://issues.apache.org/jira/browse/HBASE-9734?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Andrew Kyle Purtell resolved HBASE-9734.
----------------------------------------
Resolution: Incomplete
> Save 3-4 seconds by having master purge znode rather than wait on RS exit
> -------------------------------------------------------------------------
>
> Key: HBASE-9734
> URL: https://issues.apache.org/jira/browse/HBASE-9734
> Project: HBase
> Issue Type: Improvement
> Components: MTTR
> Reporter: Michael Stack
> Priority: Critical
>
> If RS is aborting (in my current case because SSR and ran out of DM), it will
> tell the Master its exiting by calling reportRSFatalError on the Master
> Interface. Master adds the RS to its list of fatal regionservers but that is
> about it.
> RS tries to clean up best as it can and exit out quickly but if carrying
> regions it can be seconds before it gets to the purge of its ephemeral node,
> and then the Master needs to notice it and only then can it start in on log
> splitting.
> RS should purge ephemeral node immediately on abort or Master needs to do it
> and start log splitting as soon as the RS reports fatal error. In my case
> here would save at least 4 seconds, a small cluster, with only a few regions
> so there is more to be had in a bigger setup.
--
This message was sent by Atlassian Jira
(v8.20.7#820007)
