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https://issues.apache.org/jira/browse/FLINK-25875?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17489621#comment-17489621
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Chesnay Schepler commented on FLINK-25875:
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Do you have a reference for which characters should be filtered?
> "StatsDReporter. FilterCharacters" for special processing of the characters
> are comprehensive enough
> ----------------------------------------------------------------------------------------------------
>
> Key: FLINK-25875
> URL: https://issues.apache.org/jira/browse/FLINK-25875
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Metrics
> Affects Versions: 1.14.3
> Reporter: 赵富午
> Priority: Major
> Labels: pull-request-available
> Attachments: image-2022-01-29-11-55-20-400.png
>
>
> I based on the 「org.Apache.Flink.Metrics.Statsd.StatsDReporter」 metrics
> collection, query and display and use 「Graphite」, I found some flink metrics
> cannot be queried to, after screening, I found the reason, These indicators
> cannot be parsed because they contain space characters. I further track
> source code, I found 「StatsDReporter.FilterCharacters」 function for the
> processing of special characters is not qualified, only to replace ":"
> character, for other special characters and didn't do a good replacement,
> such as a space character.
> !image-2022-01-29-11-55-38-064.png!
> [https://nightlies.apache.org/flink/flink-docs-master/docs/ops/metrics/#garbagecollection]
> JVM "Garbagecollection" grouping, indicators have space characters,
> indicators cannot be used because indicators cannot be correctly parsed and
> stored in the database.
>
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