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https://issues.apache.org/jira/browse/FLINK-14164?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16956735#comment-16956735
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Zhu Zhu commented on FLINK-14164:
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Make this issue a subtask of FLINK-10429 to also add such a metric for NG
scheduler.
I plan to change the {{SchedulerBase}} to register a meter 'numberOfRestarts'
to exhibits all restarts.
The meter is a {{MeterView}} and the underlying counter is determined by each
scheduler implementation：
1. for legacy scheduler, it's the {{ExecutionGraph#numberOfRestartsCounter}} we
added in FLINK-10429
2. for ng scheduler, it's a new counter added in {{ExecutionFailureHandler}}
that counts all the task and global failures notified to it (based on
FLINK-14232 global failure handling).
[~trohrmann] [~gjy] Do you think this would work? If it's Ok, could you assign
this ticket to me?
> Add a metric to show failover count regarding fine grained recovery
> -------------------------------------------------------------------
>
> Key: FLINK-14164
> URL: https://issues.apache.org/jira/browse/FLINK-14164
> Project: Flink
> Issue Type: Sub-task
> Components: Runtime / Coordination, Runtime / Metrics
> Affects Versions: 1.10.0
> Reporter: Zhu Zhu
> Priority: Major
> Fix For: 1.10.0
>
>
> Previously Flink uses restart all strategy to recover jobs from failures. And
> the metric "fullRestart" is used to show the count of failovers.
> However, with fine grained recovery introduced in 1.9.0, the "fullRestart"
> metric only reveals how many times the entire graph has been restarted, not
> including the number of fine grained failure recoveries.
> As many users want to build their job alerting based on failovers, I'd
> propose to add such a new metric {{numberOfFailures}}/{{numberOfRestarts}}
> which also respects fine grained recoveries.
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