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https://issues.apache.org/jira/browse/FLINK-4840?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chesnay Schepler closed FLINK-4840.
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Resolution: Won't Fix
The required time-measurement per record would make this too expensive.
> Measure latency of record processing and expose it as a metric
> --------------------------------------------------------------
>
> Key: FLINK-4840
> URL: https://issues.apache.org/jira/browse/FLINK-4840
> Project: Flink
> Issue Type: Improvement
> Components: Metrics
> Reporter: zhuhaifeng
> Assignee: zhuhaifeng
> Priority: Minor
> Labels: pull-request-available
>
> We should expose the following Metrics on the TaskIOMetricGroup:
> 1. recordProcessLatency(ms): Histogram measuring the processing time per
> record of a task. It is the processing time of chain if a chained task.
> 2. recordProcTimeProportion(ms): Meter measuring the proportion of record
> processing time for infor whether the main cost
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