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https://issues.apache.org/jira/browse/FLINK-19656?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17249007#comment-17249007
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Etienne Chauchot commented on FLINK-19656:
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Hi [~chesnay], thanks for your answers. It is clearer now: the existing filters
in the reporters only filter out static chars and should also filter out the
configured per-reporter delimiter. All reporters could have a default filtering
implementation that filter out the configured delimiter and some reporters
could override this implementation to filter out other characters.
> Automatically replace delimiter in metric name components
> ---------------------------------------------------------
>
> Key: FLINK-19656
> URL: https://issues.apache.org/jira/browse/FLINK-19656
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Metrics
> Reporter: Chesnay Schepler
> Priority: Major
> Labels: starter
> Fix For: 1.13.0
>
>
> The metric name consists of various components (like job ID, task ID), that
> are then joined by a delimiter(commonly {{.}}).
> The delimiter isn't just for convention, but also carries semantics for many
> metric backends, as they organize metrics based on the delimiter.
> This can behave in unfortunate ways if the delimiter is contained with a
> given component, as it will now be split up by the backend.
> We should automatically filter such occurrences to prevent this from
> happening.
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