xBis7 commented on code in PR #53722:
URL: https://github.com/apache/airflow/pull/53722#discussion_r2253712781
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airflow-core/src/airflow/config_templates/config.yml:
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@@ -1050,6 +1050,15 @@ metrics:
example: "\"scheduler,executor,dagrun,pool,triggerer,celery\"
or \"^scheduler,^executor,heartbeat|timeout\""
default: ""
+ legacy_names_on:
+ description: |
+ If true, it exports both new and legacy metric names.
+ Legacy names contain variables such as dag_id and task_id, which
increases cardinality.
+ The new names set these variables inside tags.
Review Comment:
The distinct names will be decreased but the number of different metrics
will be the same. So from that point of view, there is no change in
cardinality. I see how that comment can be misinterpreted.
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