fix(instance): mark Instances deleted before force-delete cleanup - #5429
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Walkthrough
ChangesInstance force deletion
Estimated code review effort: 3 (Moderate) | ~25 minutes Merge Risk: 🟡 Moderate · up to The change marks Instances deleted before force-delete cleanup and captures the state needed for cleanup, but a remaining correctness risk is that late writes through other configuration paths may not be rejected and could leave generated network segments or IB GUIDs behind. Merge should wait for that path coverage or explicit owner acceptance. Sequence Diagram(s)sequenceDiagram
participant force_delete_instance
participant Machine
participant Database
participant ExternalCleanup
force_delete_instance->>Machine: force-delete machine
force_delete_instance->>Database: lock and reread instance
force_delete_instance->>Database: mark instance deleted and commit
force_delete_instance->>ExternalCleanup: clean up using committed instance state
🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
✨ Finishing Touches🧪 Generate unit tests (beta)
Comment |
Admin force-delete now locks the Instance in a separate short transaction after the Machine `ForceDeletion` transaction commits. While holding that lock, it sets `instances.deleted`, captures the full Instance snapshot, and commits before UFM or direct cleanup begins. A configuration update that commits before the marker is included in the captured cleanup state. If its terminal Instance write runs after the marker commits, the existing `deleted IS NULL` predicate rejects the write and the configuration transaction rolls back. This supports NVIDIA#5112 Signed-off-by: Chet Nichols III <chetn@nvidia.com>
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Inline comments:
In `@crates/api-core/src/handlers/instance.rs`:
- Around line 2015-2023: Update the UPDATE predicate used by
batch_update_ib_config so it also requires instances.deleted IS NULL, preventing
deleted instances from receiving IB configuration updates. Preserve the existing
id and ib_config_version conditions.
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📒 Files selected for processing (2)
crates/api-core/src/handlers/instance.rscrates/api-core/src/tests/machine_admin_force_delete.rs
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2 participants
Admin force-delete commits Machine
ForceDeletionbefore it cleans Instance resources, but the Instance remains live until physical deletion. A configuration request that started earlier can therefore commit after force-delete has selected what to clean, leaving newly committed resources out of the cleanup.This change locks the Instance in a separate short transaction after Machine
ForceDeletioncommits. While holding the lock, it setsinstances.deletedif needed and captures the current configuration plus both sides of any pending network update before committing. If the configuration transaction commits first, cleanup uses the captured state. If its terminal Instance write runs after the marker commits, the existingdeleted IS NULLpredicate rejects the write and the configuration transaction rolls back. A failed UFM attempt keeps the marker and original deletion time for retry. External work stays outside the transaction, and no transaction holds both Machine and Instance locks.Related issues
This implements #5112. It builds on the merged concurrency and cleanup work in #5129, #5136, #5141, #5142, #5287, and #5379. The broader Machine and DPU lock-order audit remains in #5333.
Type of Change
Breaking Changes
Testing
The complete Admin force-delete test module passes with 18 tests, including cases for both commit orderings, cleanup of a pending network configuration committed before the marker, and repeated UFM failure with a stable deletion timestamp.
Additional Notes
No UFM or other external call runs inside the new database transaction.