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From "Hai Zhou_UTC+8 (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-7608) LatencyGauge change to histogram metric
Date Wed, 20 Sep 2017 12:58:01 GMT

    [ https://issues.apache.org/jira/browse/FLINK-7608?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16173125#comment-16173125
] 

Hai Zhou_UTC+8 commented on FLINK-7608:
---------------------------------------

Export to influxdb or opentsdb, I will split as follows:
<name, value>
metricName+ "max", histogram.getStatistics().getMax()
metricName+ "min", histogram.getStatistics().getMin()
...
metricName+ "p75",histogram.getStatistics().getQuantile(0.75)
...

But, if export to log4j, I will not split it, instead of using the toString method to print
its value.

> 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: Blocker
>             Fix For: 1.4.0, 1.3.3
>
>
> 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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