tillrohrmann commented on a change in pull request #14326:
URL: https://github.com/apache/flink/pull/14326#discussion_r540023077
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File path: docs/ops/metrics.md
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@@ -1654,6 +1654,9 @@ Request metrics aggregated over a subset of all entities
of the respective type:
- `/jobs/metrics?jobs=D,E,F`
- `/jobs/<jobid>/vertices/<vertexid>/subtasks/metrics?subtask=1,2,3`
+<span class="label label-danger">Warning</span> Metric names can contain
special characters (`?`, `&`, `$`, `+`, `/`, `,`, `:`, `=`, `@`, `%`) that you
need to be escape when querying metrics.
Review comment:
Can we then maybe create the table for the characters you have listed?
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