fix(rebuild): recover from a void sandbox replacement journal - #10491
fix(rebuild): recover from a void sandbox replacement journal#10491gaveezy wants to merge 2 commits into
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`rebuild` refused every attempt with "the preserved source registry row changed" after a `channels stop` and `channels start` pair, and nothing cleared the refusal for the rest of the session. Two independent causes combined. The recreate journal binds the whole durable registry row, including `messaging`, which the channel commands rewrite and which `registry.getSandbox` rehydrates from the built-in channel manifests and the ambient environment. A `channels stop` plus `channels start` pair therefore changed the fingerprint of an untouched sandbox. Separately, every refusal in `planSandboxRecreateRecovery` was terminal, because no command retires a journal the guard already refused to open. Exclude `messaging` from the durable source fingerprint, alongside the policy and MCP projections that rebuild already updates independently. A journal recorded before that exclusion still resumes against a compatibility digest that reproduces the previous field set, so an upgrade cannot strand a rebuild whose source sandbox is already deleted. Add a `restart_from_source` decision for a journal whose replacement provably never took: the registry row names the journaled sandbox, the row and the live same-name sandbox report one OpenShell identity, and that identity is not the journaled replacement. Both journal openers discard that void journal and record a fresh one against the live source, so the destructive phases stay bound to a journal captured from the current live state. An unregistered replacement carries a fresh OpenShell Id while the preserved row still carries the source's, so it can never satisfy the new decision and stays protected by the existing fail-closed refusals. The session holds one journal for every sandbox, so the name equality keeps a journal that protects another sandbox out of reach. Fixes #10473 Signed-off-by: Hai Nguyen <haingu@nvidia.com>
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Included review availability: Your plan provides up to 12 included reviews per hour; 11 remain after this review. 📝 WalkthroughWalkthroughThe change excludes messaging state from sandbox fingerprints, detects void replacement journals, safely discards them, and starts fresh rebuild or onboarding transactions. Recovery callers and tests cover stranded journals, legacy fingerprints, ownership checks, and channel state mutations. ChangesSandbox recreation recovery
Estimated code review effort: 4 (Complex) | ~45 minutes Merge Risk: 🔵 Low · up to The change improves recovery of stranded sandbox rebuilds, but the recovery documentation may still show a diagnostic that differs from the message users receive. The PR is mergeable with explicit owner follow-up to align the documented guidance. Sequence Diagram(s)sequenceDiagram
participant Recovery
participant replacementIsVoid
participant discardVoidSandboxRecreateTransaction
Recovery->>replacementIsVoid: Compare registry and live identities with journaled replacement
replacementIsVoid-->>Recovery: Return void replacement result
Recovery->>discardVoidSandboxRecreateTransaction: Retire proven void journal
discardVoidSandboxRecreateTransaction-->>Recovery: Clear recreate journal
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Inline comments:
In `@docs/manage-sandboxes/recover-rebuild-sandboxes.mdx`:
- Line 383: Align the recovery documentation’s quoted diagnostic with the
message emitted by the journal recreation flow, including the journal ID and the
suffix stating that its source sandbox remains registered and live; update the
text near the rerun description without changing unrelated behavior.
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docs/manage-sandboxes/recover-rebuild-sandboxes.mdxsrc/lib/actions/sandbox/rebuild-recreate-journal.test.tssrc/lib/actions/sandbox/rebuild-recreate-journal.tssrc/lib/onboard/onboard-recreate-journal.test.tssrc/lib/onboard/onboard-recreate-journal.tssrc/lib/onboard/sandbox-recreate-transaction.tssrc/lib/onboard/sandbox-recreate-void-journal.test.ts
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gaveezy
added
v0.0.115
area: onboarding
The recovery page quoted the discard diagnostic without its suffix, so the text did not match what a rerun prints. Quote the complete line the rebuild opener emits. Signed-off-by: Hai Nguyen <haingu@nvidia.com>
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Outcome
Before this change,
nemoclaw <sandbox> rebuildrefused every attempt withCannot resume sandbox '<name>' replacement: the preserved source registry row changed.once the operator ranchannels stop <channel>andchannels start <channel>between two rebuilds. The refusal was permanent for the rest of the session and no command could clear it, while the sandbox stayed Ready throughout. After this change achannelsmutation no longer invalidates a replacement journal, andrebuildretires a journal once it proves the recorded replacement never took, then records a fresh one against the live source.Reason
Two independent defects combined.
fingerprintSandboxRegistryEntryhashed the whole durableSandboxEntryminus two exclusion lists, andmessagingwas in neither.channels stopandchannels startrewrite that field non-idempotently:persistManifestChannelDisabledPlanmoves the plan workflow labeladd-channeltostop-channeltostart-channeland re-derivesdisabledChannelsplus each channel'sdisabled,active, andhostForwardvalues. A stop/start pair therefore changed the source fingerprint of a sandbox that nothing else had touched. Loading the registry also re-derives the rest of that field from the built-in channel manifests and the ambient environment, so the digest was not a function of the persisted bytes.Separately, every
reject()inplanSandboxRecreateRecoverywas terminal.openRebuildRecreateJournalthrows before it builds the object that ownscompleteAcceptedTarget;abandonSandboxRecreateTransactionrefuses oncerevision !== 0, which every journal pastplannedhas; andclearCompletedSandboxRecreateTransactionrequires phasecompleted. No file undersrc/commands/orsrc/lib/actions/writessandboxRecreate: null, so neitherdoctor --fixnorrecoveroffers a repair. That matches the report that no CLI-exposed recovery path exists.A journal parked at
deletedorcreatingis by design after a rebuild that stops post-delete, so the second defect turns any such journal into a permanent block as soon as any hashed field moves.Related issues
Fixes #10473
Changes
messagingfrom the durable source fingerprint, alongside the policy and MCP projections that rebuild already updates independently before delete. The fingerprint still binds every sandbox, gateway, lifecycle, agent, and workload ownership field.sandboxRecreateSourceRowMatches, which also accepts the digest a journal recorded before that exclusion. Requirement: changing the hashed field set invalidates everysourceRegistryFingerprintalready on disk, and a journal past the delete boundary outlives an upgrade, so without this an upgrade strands a rebuild whose source sandbox is already deleted. Consumers:planUnregisteredReplacementRecoveryandassertSandboxRecreateSourceProof. A direct change is insufficient because the recorded digest cannot be recomputed from the new field set. The compatibility digest reproduces the exact pre-change field set, so it accepts only what the previous release accepted. Protected byresumes a journal recorded before messaging left the fingerprint (#10473).restart_from_sourcerecovery decision anddiscardVoidSandboxRecreateTransaction. Requirement: a journal whose replacement never took blocksrebuildfor the rest of the session with no way to retire it. Consumers:openRebuildRecreateJournalandopenOnboardRecreateJournaldiscard the void journal and open a fresh one;createSandboxRecreateRuntimethrows, because a handed-off runtime does not own the journal it was given. A direct change is insufficient because both openers throw before they construct anything that can retire a journal. Protected by therestart_from_sourceanddiscarding a void recreate journalcases insrc/lib/onboard/sandbox-recreate-void-journal.test.tsand by one opener case in each journal suite.docs/manage-sandboxes/recover-rebuild-sandboxes.mdx.replacementIsVoidstays fail-closed by construction. It requires the registry row to name the journaled sandbox, to carry a lifecycle live identity, for that identity to equal the observed live sandbox, and for it not to be the journaled replacement. A replacement that was created but never registered carries a fresh OpenShell Id while the preserved row still carries the source's, so it can never satisfy the decision and keeps the existing refusals.checkpoint.sandboxRecreateholds one journal for the whole session, so the name equality stops a rebuild of one sandbox retiring a journal that protects another. Each of the four clauses is decisive: deleting any one makes a named test fail. The destructive path is unchanged, because the fresh journal bindssourceLiveIdentityFingerprintto the observed sandbox andobserveSourceForDeletere-proves that identity immediately before the delete command, after the rebuild has already taken its state backup.Verification
npx vitest runover the ten suites that exercise the changed functions (sandbox-recreate-transaction,sandbox-recreate-void-journal,onboard-recreate-journal,not-ready-recreate,sandbox-recreate-protection,sandbox-destructive-resume-rollback,rebuild-recreate-journal,rebuild-flow-recovery,rebuild-hermes-accepted-target,rebuild-shields-finally) — 236 passed.npx vitest run --project cli src/lib/onboard src/lib/actions/sandbox src/lib/state— 855 files, 13140 tests, 13088 passed, 50 failed. Every one of the 50 failures is pre-existing on this checkout and unrelated to this change: the corporate-CAdockerfile-*family plusbase-image-resolution-metadataandprovider-inference-reasoning, which fail because locally installed corporate CA certificates activate the corporate-CA branch in fixtures that pass noagentName. I confirmed the same failing set on an unmodifiedorigin/mainworktree before rebasing.replacementIsVoidclauses, or themessagingexclusion, or the compatibility digest, makes a named#10473test fail. Each source file was restored and checksum-verified afterwards.npm run typecheck:cli— clean.npm run checks:repository— all checks passed, including source architecture budget, vitest project membership, test title style, and test registration boundary.npm run test-size:check,npm run test:titles:check,npm run test:projects:check— passed.npx oxlintandnpx oxfmt --checkover the changed files — clean.bash scripts/check-spdx-headers.sh— clean.npm run docs— exited 0,check-docs-published-routes: OK,Found 0 errors.npx markdownlint-cli2on the changed page — 0 issues.npx commitlint --from origin/main --to HEAD— clean.console.logprints only the sandbox name.Review notes
This changes a sensitive path (sandbox lifecycle and onboarding). No maintainer review has happened yet. The following is automated-review context, not an approval or a waiver.
I ran a multi-agent adversarial review over the diff along destructive-safety, fingerprint-scope, integration, and test-quality lenses, with independent verifiers instructed to refute each finding. It caught two real defects in an earlier revision of this branch. Both are fixed here and covered by regression tests:
replacementIsVoiddid not compareregistryEntry.namewithtransaction.sandboxName. Because the session holds one journal slot, rebuilding sandbox A could discard sandbox B's stranded journal and remove the protection around B's created-but-unregistered replacement. A verifier reproduced that decision against the earlier commit and re-verified that the pairing now staysrejectat every phase.sourceRegistryFingerprint, which would have stranded a journal parked past the delete boundary across an upgrade. That is what the compatibility digest addresses.Local git hooks were unavailable in this checkout because
prekcannot download its release binary from this network, sonpm run validate:prdid not run. I ran the equivalent gates directly and listed them under Verification. The broad E2E gate has not run locally; GitHub Actions owns that evidence for this commit.Not addressed here: how the reporter's journal became stranded in the first place. A journal parked at
deletedorcreatingis expected after a rebuild that stops post-delete, and this change makes that state recoverable however it arises, but the leak that produced it in a session where every rebuild reportedly succeeded is not proven. The reporter's~/.nemoclaw/onboard-session.json(checkpoint.sandboxRecreate.phase,revision,targetGeneration) together with the row'slifecycleGenerationwould identify it.Signed-off-by: Hai Nguyen haingu@nvidia.com
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