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https://issues.apache.org/jira/browse/CASSANDRA-16882?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17415639#comment-17415639
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Andres de la Peña commented on CASSANDRA-16882:
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The workflow with an optional pre-commit job running most of the tests would
look like
[this|https://app.circleci.com/pipelines/github/adelapena/cassandra/843/workflows/da24c91a-0b6a-4370-a516-823cc4ad574d],
and like
[this|https://app.circleci.com/pipelines/github/adelapena/cassandra/843/workflows/f21093c4-1d9a-41b0-aaea-51c1b5c3c187]
for Java 11.
The central column looks a bit messy due to the repetition of the jobs that can
be started either individually or with the pre-commit job, although the left
column indicating what jobs have been started is quite clear. These repetitions
are there because, as mentioned before, CircleCI doesn't allow disjunctions in
job dependencies. An alternative approach would be placing the pre-commit stuff
in a separate workflow with a single approval step.
> Save CircleCI resources with optional test jobs
> -----------------------------------------------
>
> Key: CASSANDRA-16882
> URL: https://issues.apache.org/jira/browse/CASSANDRA-16882
> Project: Cassandra
> Issue Type: Task
> Components: CI
> Reporter: Andres de la Peña
> Assignee: Andres de la Peña
> Priority: Normal
>
> This ticket implements the addition of approval steps in the CircleCI
> workflows as it was proposed in [this
> email|https://lists.apache.org/thread.html/r57bab800d037c087af01b3779fd266d83b538cdd29c120f74a5dbe63%40%3Cdev.cassandra.apache.org%3E]
> sent to the dev list:
> The current CircleCI configuration automatically runs the unit tests, JVM
> dtests and cqhshlib tests. This is done by default for every commit or, with
> some configuration, for every push.
> Along the lifecycle of a ticket it is quite frequent to have multiple commits
> and pushes, all running these test jobs. I'd say that frequently it is not
> necessary to run the tests for some of those intermediate commits and pushes.
> For example, one can show proofs of concept, or have multiple rounds of
> review before actually running the tests. Running the tests for every change
> can produce an unnecessary expense of CircleCI resources.
> I think we could make running those tests optional, as well as clearly
> specifying in the documentation what are the tests runs that are mandatory
> before actually committing. We could do this in different ways:
> # Make the entire CircleCI workflow optional, so the build job requires
> manual approval. Once the build is approved the mandatory test jobs would
> be run without any further approval, exactly as it's currently done.
> # Make all the test jobs optional, so every test job requires manual
> approval, and the documentation specifies which tests are mandatory in the
> final steps of a ticket.
> # Make all the mandatory test jobs depend on a single optional job, so we
> have a single button to optionally run all the mandatory tests.
> I think any of these changes, or a combination of them, would significantly
> reduce the usage of resources without making things less tested. The only
> downside I can think of is that we would need some additional clicks on the
> CircleCI GUI.
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