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https://issues.apache.org/jira/browse/HDFS-4631?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Fengdong Yu updated HDFS-4631:
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Description:
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.
was:
ZKFC add HealthCallbacks bu 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 message), 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 configration, then only HealthCallbacks is added.
> 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.
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