On macOS, OpenClaw’s gateway is commonly supervised by launchd. Operators—and occasionally agents themselves—try to “just restart the gateway” from the same session that depends on it. That pattern can unload the LaunchAgent while the initiating RPC is still attached, which matches real-world reports of gateways that never come back until someone logs in with a separate shell. This runbook explains why, gives a decision table for safe versus unsafe actions, lists six concrete steps with numeric guardrails, and links to deeper recovery and concurrency articles.
Before changing anything, read LaunchAgent gateway recovery and interactive chat versus long-running jobs so restarts do not collide with heavy workspace tasks. First-time installs should still follow installation and deployment. Use help for account-level questions and pricing when you split gateway and CI roles across two NodeMac hosts.
The failure mode: self-decapitation under launchd
Think of the gateway as both the server and the dependency of the command you are running. When an agent issues openclaw gateway restart (or an equivalent wrapper) through the same RPC channel that the gateway process owns, launchd may bootout the job before a clean handoff completes. The CLI session that initiated the restart can exit with a transport error, and no remaining supervisor guarantees a bootstrap back to a healthy state—especially on headless hosts where nobody is sitting at the physical display to notice.
- Symptom A:
gateway statusflaps from running to missing within the same second the agent invoked restart. - Symptom B: logs show launchd unload lines immediately adjacent to RPC disconnect errors.
- Symptom C: external monitors (HTTP health or TCP connect) time out for several minutes while loginwindow has not started a user session—common on hosts that only expose SSH.
Matrix: who may restart the gateway
| Actor | Typical context | Verdict | Safer alternative |
|---|---|---|---|
| Human operator via second SSH | Screen session or plain ssh user@host | Preferred | Run documented bootout/bootstrap sequence; capture logs |
| Automation agent inside OpenClaw | Tool call while handling chat | Avoid restart | Emit ticket; let external orchestrator restart after mutex |
| Scheduled LaunchAgent | Nightly drift repair | Allowed if isolated plist | Stagger away from peak chat; see scheduled task alignment |
| CI job on same Mac | Pipeline step “bounce gateway” | Discouraged | Dedicated admin job queue with separate credentials |
Second matrix: pre-restart checklist
| Check | Pass criterion |
|---|---|
| Listener ownership | Exactly one PID matches the configured gateway port family; note PID for rollback notes |
| Disk space for logs | At least 8 GB free on the volume hosting state and logs so restart does not fail mid-write |
| Mutex with long jobs | No workspace job holds the compile mutex tier you defined for gateway maintenance |
| Auth token continuity | Clients can reload token from disk without requiring an interactive GUI prompt |
Operational numbers to log every time
- Cold start budget: allow up to 90 seconds after bootstrap before declaring failure, longer if antivirus or Full Disk Access prompts are pending.
- RPC probe interval: poll every 5 seconds for the first minute, then back off exponentially.
- Concurrent admin actions: cap to one gateway-changing operation per host at a time; parallel plist edits are how teams lose track of which change broke health.
Headless tip: if GUI permission dialogs are suspected, temporarily attach via VNC, click through once, then return to SSH-only operations.
Six on-host steps (narrative expansion of the HowTo)
- Stop issuing commands through the sick gateway. Open a second SSH connection to the same Mac mini M4 host; this session must not depend on the RPC you are about to recycle.
- Capture evidence: status, recent logs, and the plist path you believe is authoritative—compare against config drift guidance.
- Verify the listener with
lsofor equivalent so you do notbootoutthe wrong PID when multiple experiments share a lab machine. - Unload with launchd semantics appropriate to your macOS version, then bootstrap from disk so edited EnvironmentVariables and WorkingDirectory keys actually apply.
- Probe health until RPC checks succeed from the external shell; only then reconnect chat clients.
- Post a one-line incident note with timestamp, reason, and whether chat or CI saw impact—future correlation with rate limits becomes trivial.
FAQ
Can I automate restarts with Ansible?
Yes, if the playbook always uses a control connection that does not route through the gateway process you are restarting. Treat the gateway like a database: bounce it from an orchestration plane, not from a client query.
What about multiple gateways for dev and prod?
Use separate plists, ports, and state directories. Document which LaunchAgent label maps to which environment so bootout commands never hit the wrong label.
When should I split hosts entirely?
When chat SLO and CI preemption fight despite mutex tiers—add a second dedicated Mac mini M4 from NodeMac rather than stacking incompatible lifecycles on one launchd graph.
Reliable OpenClaw operations benefit from the same hardware story as your builds: a dedicated Mac mini M4 gives Apple Silicon performance with native macOS, SSH for headless maintenance and VNC when UI permission prompts appear, plus geographic choice across Hong Kong, Japan, Korea, Singapore, and the United States so operators sit closer to the machines they wake at 03:00. Renting instead of buying keeps a second “gateway-only” host economically sane when this runbook proves you should never share launchd graphs between experimental agents and production chat. Compare plans by region before you stack another risk on a single plist.