The following metrics only cover the host in which the Docker Machine executor is running:
- process_cpu_seconds_total: If you have a small machine, it is useful to know whether the CPU is coping with the load. There is a count that records the total number of CPU seconds used by the Runner process:
A big increase in a short period of time could indicate issues.
- process_open_fds: There is a maximum number of open file descriptors on a Unix system. If this number is reached, the system will generate errors and won't open files anymore:
If the maximum is reached, you can expect your jobs to fail.
- process_resident_memory_bytes ...
