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Posted to dev@flink.apache.org by "Chesnay Schepler (Jira)" <ji...@apache.org> on 2019/10/16 12:10:00 UTC
[jira] [Created] (FLINK-14410) Retrieve CharacterFilter once after
registration
Chesnay Schepler created FLINK-14410:
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Summary: Retrieve CharacterFilter once after registration
Key: FLINK-14410
URL: https://issues.apache.org/jira/browse/FLINK-14410
Project: Flink
Issue Type: Improvement
Components: Runtime / Metrics
Reporter: Chesnay Schepler
Assignee: Chesnay Schepler
Fix For: 1.10.0
Reporters can use a {{CharacterFilter}} to remove/replace characters when assembling metric identifiers. Currently the reporter pass this filter in every call to scope-related methods on the {{MetricGrou}}. We could streamline the {{MetricScope}} API proposed in FLINK-14350 if instead we retrieved this filter once after the reporter is initialized.
This would furthermore prevent subtle bugs if reporters use varying filters; due to the caching of scopes only the first filter would truly be applied to the scope.
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