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remora/docs/protocol/RemoraDurableFault.cfg

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Add initial draft of Remora model
2026-07-10 11:39:49 +09:00
SPECIFICATION SafetySpec
Strengthen JobProtocol model after independent review. Replace tautological invariants with non-trivial ones, allow multi-shot coordination loss and re-partition, fix reap/progress lifecycle, enable deadlock checking via Done, and add stress and multi-shot TLC configs.
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CHECK_DEADLOCK TRUE
Add initial draft of Remora model
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\* Worker can reach coordination and target while durable authority is cut.
Strengthen JobProtocol model after independent review. Replace tautological invariants with non-trivial ones, allow multi-shot coordination loss and re-partition, fix reap/progress lifecycle, enable deadlock checking via Done, and add stress and multi-shot TLC configs.
2026-07-10 12:43:32 +09:00
\* Single worker: CrashWorker disabled (OtherCapacity); partitions only.
Add initial draft of Remora model
2026-07-10 11:39:49 +09:00
CONSTANTS
Jobs = {j1}
Workers = {w1}
InitialWorkers = {w1}
NoJob = NoJob
NoWorker = NoWorker
MaxAttempts = 2
MaxProgress = 1
LeaseLimit = 1
Specify fenced activation and source credential contracts Define bounded reservation recovery, exact activation replay fencing, immutable source identities, and deployment-owned secret and target policy boundaries. Align the OpenAPI contract and add a split-store activation safety refinement.
2026-07-14 18:12:28 +09:00
ReservationLimit = 1
Add initial draft of Remora model
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LocalLimit = 1
GlobalLimit = 1
FaultsEnabled = TRUE
FaultServices = {"Durable"}
Strengthen JobProtocol model after independent review. Replace tautological invariants with non-trivial ones, allow multi-shot coordination loss and re-partition, fix reap/progress lifecycle, enable deadlock checking via Done, and add stress and multi-shot TLC configs.
2026-07-10 12:43:32 +09:00
MaxCoordLosses = 0
MaxPartitions = 2
Model durable ownership for credential secrets
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MaxCredentialIntents = 0
Add initial draft of Remora model
2026-07-10 11:39:49 +09:00
INVARIANTS
TypeOK
StateConsistency
Strengthen JobProtocol model after independent review. Replace tautological invariants with non-trivial ones, allow multi-shot coordination loss and re-partition, fix reap/progress lifecycle, enable deadlock checking via Done, and add stress and multi-shot TLC configs.
2026-07-10 12:43:32 +09:00
AllocatedTokensUsed
Weaken live progress to a coordination-only hint (IF-6). Drop LiveProgressAligned in favor of well-formedness and lease-compatible progress, stop durable CAS from clearing Redis progress, and add ambient ClearStaleLiveProgress so TLC matches Postgres + Dragonfly separation.
2026-07-10 14:16:29 +09:00
LiveProgressWellFormed
LiveProgressCompatibleWithLiveLease
Strengthen JobProtocol model after independent review. Replace tautological invariants with non-trivial ones, allow multi-shot coordination loss and re-partition, fix reap/progress lifecycle, enable deadlock checking via Done, and add stress and multi-shot TLC configs.
2026-07-10 12:43:32 +09:00
AtMostOneLiveLeasePerJob
AuthorityWellFormed
Add initial draft of Remora model
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CommittedResultConsistent
CancellationSafety
PermitSafety
ResumeValidity
Strengthen JobProtocol model after independent review. Replace tautological invariants with non-trivial ones, allow multi-shot coordination loss and re-partition, fix reap/progress lifecycle, enable deadlock checking via Done, and add stress and multi-shot TLC configs.
2026-07-10 12:43:32 +09:00
StagingOwnership
Model durable ownership for credential secrets
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CredentialLifecycleWellFormed
NoOrphanSecrets
Add initial draft of Remora model
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PROPERTIES
TerminalStateIsImmutable
FencingTokensMonotonic
CommitIsFencedCAS
Model durable failure disposition
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FailureDispositionHonored
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