The checker service consists of two parts:
- Master checker
- Worker checker
The "Master checker" runs the "Worker checker". The "Master checker" should be running always.
When you want to start monitoring HAProxy service the "Master checker" will start local worker for every HAProxy service.
The "Worker checker" will check every backend server and HAProxy status remotely by 1999 port(by default).
If any backend lost connect with the HAProxy service or the HAProxy service is fallen, the checker will send message via Telegram about it
If you want to use and if you have install HAProxy service manually read
how you should set HAProxy service.
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For Checker installation you should run:
How start using RPM you can read here
The "Master checker" and "Worker checker" Logs
The "Master checker" and "Worker checker" have their own log in an "Internal logs". You can read more about the "Internal logs"