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https://issues.apache.org/jira/browse/FLINK-7608?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16346512#comment-16346512
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ASF GitHub Bot commented on FLINK-7608:
---------------------------------------
Github user zentol commented on the issue:
https://github.com/apache/flink/pull/5161
I'm wary about using the operator name (or _any_ variant that inexplicably
exists) as that significantly increases the size of watermarks.
I see the use-case, and ideally I would like to have both the operator name
and id to both have a unique metric by default while supporting static names
across jobs, but i don't see a way to do that without either a) blowing up
watermarks even more or b) including an index of all operators (id+name) in the
TDD and making that accessible.
> LatencyGauge change to histogram metric
> ----------------------------------------
>
> Key: FLINK-7608
> URL: https://issues.apache.org/jira/browse/FLINK-7608
> Project: Flink
> Issue Type: Bug
> Components: Metrics
> Reporter: Hai Zhou UTC+8
> Assignee: Hai Zhou UTC+8
> Priority: Major
> Fix For: 1.5.0
>
>
> I used slf4jReporter[https://issues.apache.org/jira/browse/FLINK-4831] to
> export metrics the log file.
> I found:
> {noformat}
> -- Gauges
> ---------------------------------------------------------------------
> ......
> zhouhai-mbp.taskmanager.f3fd3a269c8c3da4e8319c8f6a201a57.Flink Streaming
> Job.Map.0.latency:
> value={LatencySourceDescriptor{vertexID=1, subtaskIndex=-1}={p99=116.0,
> p50=59.5, min=11.0, max=116.0, p95=116.0, mean=61.833333333333336}}
> zhouhai-mbp.taskmanager.f3fd3a269c8c3da4e8319c8f6a201a57.Flink Streaming
> Job.Sink- Unnamed.0.latency:
> value={LatencySourceDescriptor{vertexID=1, subtaskIndex=0}={p99=195.0,
> p50=163.5, min=115.0, max=195.0, p95=195.0, mean=161.0}}
> ......
> {noformat}
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