oxidecomputer / oxidecomputer/omicron
nexus `external_endpoints` task hung
Nobody has claimed this yet.
- Dominant language
- Rust
- Stars
- 572
- Forks
- 97
- Avg merge
- 2d 12h
- Merged PRs (30d)
- 96
Description
This was observed in our colo environment and (internal) details are under oxidecomputer/colo#148.
The upshot is that some runaway automation created a ton of TLS certificates again and in one of the three Nexus instances, the external_endpoints task got hung, apparently for days. The root cause is still being determined but appears to be a missed wakeup in the kernel on the database side. This ticket will cover the analysis and information about mitigation and workarounds. More details coming!
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the Nexus external_endpoints task and the investigation referenced in oxidecomputer/colo#148. The issue says the work is still analysis; done means identifying the cause of the hang and documenting effective mitigation and workarounds.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- backend
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Quiet
- Clarity
- Needs clarification
- Newbie friendliness
- 32/100