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https://issues.apache.org/jira/browse/FLINK-20518?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17368696#comment-17368696
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Chesnay Schepler commented on FLINK-20518:
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Yes, decoding characters works fine on the server side.
> WebUI should escape characters in metric names
> ----------------------------------------------
>
> Key: FLINK-20518
> URL: https://issues.apache.org/jira/browse/FLINK-20518
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Web Frontend
> Affects Versions: 1.10.0
> Reporter: Chesnay Schepler
> Assignee: tartarus
> Priority: Minor
> Labels: auto-deprioritized-major
> Fix For: 1.14.0
>
>
> Metric names can contain characters like {{+}} or {{?}} that should be
> escaped when querying metrics.
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