FAQ・The agent won’t startup.

It's a good idea to first check and see if the package has been properly installed or not.
Please check whether OS to be installed is officially supported.
- Supported Environments - Mackerel Docs
If antivirus software is installed on the server where the agent is installed, please make sure that mackerel-agent signal is not blocked.
Check the contents of the log by mackerel-agent and check whether an error is output.
Please check the command mackerel-agent configtest to see if the configuration file mackerel-agent.conf is written correctly.
If you have included /var/lib/mackerel-agent/id into an OS image such as Docker Image or AMI, it will be necessary to delete this file.
- When the mackerel-agent starts up for the first time, the ID issued by the server will be saved to /var/lib/mackerel-agent/id. The host will be identified by this ID from then on. For that reason, if /var/lib/mackerel-agent/id is copied, multiple hosts will be recognized by Mackerel as the same host, resulting in metric posting and monitoring not functioning properly.