CI takes hours to start
- Dominant language
- Rust
- Stars
- 9.3k
- Forks
- 2.4k
- Avg merge
- 3d 7h
- Merged PRs (30d)
- 344
Description
### Describe the bug
Created more for visibility to others. CI now takes a long time to start across many PRs, both on push and in the merge queue. This seems to have started sometime between 2026-09-08 07:30 and 08:44 UTC.
Examples:
https://github.com/apache/datafusion/actions/runs/34238609607/job/102102700226?pr=25081
https://github.com/apache/datafusion/pull/25081
https://github.com/apache/datafusion/actions/runs/34238609420
### Additional context
I believe that's ASF issue, https://issues.apache.org/jira/browse/INFRA-28374
Contributor guide
Research direction
Start with the linked GitHub Actions runs for PR 25081 and compare their startup delays across push and merge-queue jobs. Review ASF INFRA-28374 for the reported cause and status; done means CI startup times return to normal or the external infrastructure issue has a documented resolution.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- github-actions
- Domain
- ci-cd, infrastructure
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Active
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100