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https://issues.apache.org/jira/browse/CALCITE-7884?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vladimir Sitnikov resolved CALCITE-7884.
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Fix Version/s: 1.43.0
Resolution: Fixed
> CI should not run twice for a pull request from a branch in apache/calcite
> --------------------------------------------------------------------------
>
> Key: CALCITE-7884
> URL: https://issues.apache.org/jira/browse/CALCITE-7884
> Project: Calcite
> Issue Type: Improvement
> Components: ci
> Reporter: Vladimir Sitnikov
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.43.0
>
>
> When a committer opens a pull request from a branch in apache/calcite itself,
> the "CI" workflow runs twice for every commit: once for the {{push}} event
> and once for the {{pull_request}} event. Both runs test the same commit.
> Example: [PR #5350|https://github.com/apache/calcite/pull/5350], commit
> bd7b500 on branch {{issue7873}}:
> * push run: https://github.com/apache/calcite/actions/runs/39893079564
> * pull_request run: https://github.com/apache/calcite/actions/runs/39893298257
> Each run has 15 CI jobs, and "Validate Gradle Wrapper" also runs once per
> event, so the commit took 32 jobs and about 455 runner-minutes (about 229 per
> run). 22 of the 32 jobs run on {{ubuntu-latest}}; on 2026-10-23 they waited
> in the queue from 03:07 to 05:12–05:19 UTC. The ASF shared runners are
> congested (dev@ thread "Calcite CI pending delays":
> https://lists.apache.org/thread.html/yyw3bkc6lkk517hf3ol4sdhg3ozvb0yy), so
> the duplicate run delays every other pull request too.
> The cause is the trigger in {{.github/workflows/main.yml}}: {{push}} fires
> for {{branches: '*'}}. {{gradle-wrapper-validation.yml}} uses {{on: [push,
> pull_request]}} with the same effect.
> Proposal: limit the {{push}} trigger to the {{main}} branch and the
> {{branch-*}} release branches in both workflows and keep {{pull_request}} as
> it is. A push to any other branch, in apache/calcite or in a fork, then runs
> no CI until a pull request is opened; a draft pull request gives the same CI.
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