alamb commented on code in PR #11795:
URL: https://github.com/apache/arrow-rs/pull/11795#discussion_r4346586759
##########
.github/workflows/docs.yml:
##########
@@ -62,6 +62,16 @@ jobs:
permissions:
contents: write
runs-on: ubuntu-latest
+ # ci.yml keys its concurrency group on the commit SHA, so CI runs for
+ # consecutive pushes to main execute in parallel. Each deploy force-pushes
+ # the asf-site branch, and two deploys pushing at the same time race:
+ # the loser fails with "cannot lock ref 'refs/heads/asf-site'".
+ # Serialize deploys (without cancelling any of them) so every push to
+ # main publishes its docs in turn.
Review Comment:
```suggestion
# Ensure only one of these jobs runs at a time because each force-pushes
# the asf-site branch, so concurrent runs can conflct
```
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