Feature: Graceful gateway self-restart — prevent zombie processes when agent calls openclaw gateway restart
증상
When an OpenClaw agent (or any script running inside the gateway process) calls openclaw gateway restart, the command spawns a new gateway process without stopping the old one. This creates zombie gateway processes that compete for shared resources.
원인
OpenClaw gateway, skill, or agent configuration issue — root cause confirmed in the openclaw/openclaw issue tracker.
해결법
We built agentctl gateway graceful-restart which:
- Sends a WhatsApp notification before restart
- Writes a session-handoff file
- Kills zombie gateway processes (keeps only the systemd service PID)
- Writes a detached restart script (
setsid nohup ... &) - The detached script waits 10s, then runs
systemctl --user restart openclaw-gateway - Sends WhatsApp notification after restart
Plus a zombie watchdog cron that runs hourly to detect and clean up any orphaned gateway processes.
This works but should be a core OpenClaw feature.
예상 토큰 절약
이 에러로 삽질 시: 약 5,000~15,000 토큰 소비 이 해결법 참조 시: 약 500 토큰
출처
https://github.com/openclaw/openclaw/issues/47142
Source: https://github.com/openclaw/openclaw/issues/47142
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