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https://issues.apache.org/jira/browse/FLINK-31482?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17701030#comment-17701030
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Martijn Visser commented on FLINK-31482:
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Wouldn't you normally detect these type of things in your metric system like
Prometheus or Grafana?
> support count jobmanager-failed failover times
> ----------------------------------------------
>
> Key: FLINK-31482
> URL: https://issues.apache.org/jira/browse/FLINK-31482
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Coordination, Runtime / Metrics
> Affects Versions: 1.16.1
> Reporter: Fei Feng
> Priority: Major
>
> we have a metric `numRestarts` which indicate how many times a job failover
> ， but we don't have a metric indicate the job recover from ha ( high
> availability).
> there are two problems:
> 1. when a jobmanager process crashed , we have no way of knowing that
> jobmanager is crash and job was recovered from metric system
> 2. when a new jobmanager become leader, the `numRestarts` will started from
> zero,
> Sometimes misleading our users。most user think that whether failover because
> of a JM failure or because of a job failure, these failover is same , the
> effect, at least, is the same.
>
> I suggest we can
> 1. add new metric that indicate how many time the job was recovered from ha
> 2. metric `numRestarts` also count the times recover from ha
>
>
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