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https://issues.apache.org/jira/browse/AIRFLOW-4790?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16863165#comment-16863165
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ASF GitHub Bot commented on AIRFLOW-4790:
-----------------------------------------
andrewhharmon commented on pull request #5414: [AIRFLOW-4790] Change dag
processing stats to timers
URL: https://github.com/apache/airflow/pull/5414
Make sure you have checked _all_ steps below.
### Jira
- [x] My PR addresses the following issues and references them in the PR
title.
- https://issues.apache.org/jira/browse/AIRFLOW-4790
### Description
- [x] the stasd metrics for dag processing should be changed from gauges to
timers
### Tests
- [x] scheduler job already has unit test
### Commits
- [x] My commits all reference Jira issues in their subject lines, and I
have squashed multiple commits if they address the same issue. In addition, my
commits follow the guidelines from "[How to write a good git commit
message](http://chris.beams.io/posts/git-commit/)":
1. Subject is separated from body by a blank line
1. Subject is limited to 50 characters (not including Jira issue reference)
1. Subject does not end with a period
1. Subject uses the imperative mood ("add", not "adding")
1. Body wraps at 72 characters
1. Body explains "what" and "why", not "how"
### Documentation
- [x] In case of new functionality, my PR adds documentation that describes
how to use it.
- updated metrics docs
### Code Quality
- [x] Passes `flake8`
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> dag processing statsd metrics are implemented as gauges but should be timers
> ----------------------------------------------------------------------------
>
> Key: AIRFLOW-4790
> URL: https://issues.apache.org/jira/browse/AIRFLOW-4790
> Project: Apache Airflow
> Issue Type: Bug
> Components: scheduler
> Affects Versions: 1.10.3
> Reporter: Andrew Harmon
> Assignee: Andrew Harmon
> Priority: Minor
>
> These two metrics were implemented as gauges but should be timers to follow
> the convention of other metrics that measure how long something takes to run.
> dag_processing.last_runtime.<dag_file>
> dag_processing.last_run.seconds_ago.<dag_file>
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