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https://issues.apache.org/jira/browse/FLINK-20388?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17240716#comment-17240716
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Chesnay Schepler commented on FLINK-20388:
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And how will it generate that metric name? take the first N characters, and
append a hash of the rest? (This idea came up in the past and could be done
automatically in the metric system; no need to pollute the API any further)
> Supports users setting operators' metrics name
> ----------------------------------------------
>
> Key: FLINK-20388
> URL: https://issues.apache.org/jira/browse/FLINK-20388
> Project: Flink
> Issue Type: Improvement
> Components: API / DataStream, Runtime / Metrics
> Reporter: hailong wang
> Priority: Major
>
> Currently, we only support users setting operators name.
> And we use those in the topology to distinguish operators, at the same time,
> as the operator metrics name.
> If the operator name length is larger than 80, we truncate it simply.
> I think we can allow users to set operator metrics name like operators name.
> If the user is not set, use the current way.
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