[
https://issues.apache.org/jira/browse/HDFS-4631?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13629689#comment-13629689
]
Fengdong Yu commented on HDFS-4631:
-----------------------------------
Hi,
I do think we need this patch for customized callback during state
changed.(maybe do failover during state change, maybe not)
but in the prod cluster, we still need get informed when there is health state
changed.
> Support customized call back method during failover automatically.
> ------------------------------------------------------------------
>
> Key: HDFS-4631
> URL: https://issues.apache.org/jira/browse/HDFS-4631
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: ha
> Affects Versions: 3.0.0
> Reporter: Fengdong Yu
> Labels: features, ha, hadoop
> Fix For: 3.0.0
>
> Attachments: HDFS-4631.patch
>
> Original Estimate: 0.5m
> Remaining Estimate: 0.5m
>
> ZKFC add HealthCallbacks by default, this can do quiteElection at least. but
> we often want to be alerted if there is fail over occurring(such as send
> email, short messages), especially for prod cluster.
> There is a configured fence script. maybe we can put all these logics in the
> script. but in reasonable, fence script does only one thing: fence :)
> So I added this patch, we can configure customized HM callback method, if
> there is no configuration, then only HealthCallbacks is added.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
