[jira] [Created] (FLINK-19656) Automatically replace delimiter in metric name components

["Chesnay Schepler (Jira)" <ji...@apache.org>]

Chesnay Schepler created FLINK-19656:
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             Summary: 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
             Fix For: 1.12.0


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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