oxidecomputer / oxidecomputer/omicron
Nexus overprovisions disks with control plane zones on them
Nobody has claimed this yet.
- Dominant language
- Rust
- Stars
- 572
- Forks
- 97
- Avg merge
- 2d 12h
- Merged PRs (30d)
- 96
Description
This appears to be the root cause of #7221: Nexus provisioned so many Crucible regions on one disk that the CockroachDB zone whose root filesystem and database filesystem were both on the same pool ran out of space.
There are many ways to deal with this, with different tradeoffs. I'll post a few notes from the earlier control plane discussion.
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 by tracing Nexus's Crucible-region provisioning and how CockroachDB control-plane zones share a disk pool. The issue provides no files, tests, or settled approach; review the earlier control-plane discussion and establish an agreed policy before defining completion as preventing root and database filesystems from exhausting their shared pool.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- backend, databases
- Issue type
- Bug
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 15/100