Adds operational improvements to the Dolt storage backend for increased
reliability in production environments with concurrent clients:
1. Lock retry with exponential backoff:
- Add LockRetries and LockRetryDelay config options
- Automatic retry on lock contention (default: 30 retries, ~6s window)
- Exponential backoff starting at 100ms
- Handles transient format version errors during manifest updates
2. Stale lock file cleanup:
- Detect and clean orphaned .dolt/noms/LOCK files on startup
- Prevents "database is read only" errors after crashes
- Only removes empty locks older than 5 seconds
3. Transient error detection:
- isTransientDoltError() detects retryable conditions
- isLockError() identifies lock contention scenarios
- cleanupStaleDoltLock() safely removes orphaned locks
These improvements address common issues in multi-process environments
where the Dolt embedded driver creates exclusive locks that persist
after unexpected termination.
Co-authored-by: upstream_syncer <matthew.baker@pihealth.ai>
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
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