When a model API call hangs indefinitely (e.g. Anthropic quota exceeded
mid-call), the gateway acquires a session .jsonl.lock but the promise
never resolves, so the try/finally block never reaches release(). Since
the owning PID is the gateway itself, stale detection cannot help —
isPidAlive() always returns true.
This commit adds four layers of defense:
1. **In-process lock watchdog** (session-write-lock.ts)
- Track acquiredAt timestamp on each held lock
- 60-second interval timer checks all held locks
- Auto-releases any lock held longer than maxHoldMs (default 5 min)
- Catches the hung-API-call case that try/finally cannot
2. **Gateway startup cleanup** (server-startup.ts)
- On boot, scan all agent session directories for *.jsonl.lock files
- Remove locks with dead PIDs or older than staleMs (30 min)
- Log each cleaned lock for diagnostics
3. **openclaw doctor stale lock detection** (doctor-session-locks.ts)
- New health check scans for .jsonl.lock files
- Reports PID status and age of each lock found
- In --fix mode, removes stale locks automatically
4. **Transcript error entry on API failure** (attempt.ts)
- When promptError is set, write an error marker to the session
transcript before releasing the lock
- Preserves conversation history even on model API failures
Closes#18060
Adds cleanup handlers to release held file locks when the process
terminates via SIGTERM, SIGINT, or normal exit. This prevents orphaned
lock files that would block future sessions.
Fixes#1951
What:
- stub resolvePinnedHostname in web-fetch tests to avoid DNS flake
- close lock file handles via FileHandle.close during cleanup to avoid EBADF
Why:
- make CI deterministic without network/DNS dependence
- prevent double-close errors from GC
Tests:
- pnpm vitest run --config vitest.unit.config.ts src/agents/tools/web-tools.fetch.test.ts src/agents/session-write-lock.test.ts (failed: missing @aws-sdk/client-bedrock)
Adds process exit handlers to release all held session locks on:
- Normal process.exit() calls
- SIGTERM / SIGINT signals
This ensures locks are cleaned up even when the process terminates
unexpectedly, preventing the 'session file locked' error.
