Disable Monit alerts when PID changed

Solution 1:

You can disable this alert by setting up a local alert statement. This is thoroughly documented here: http://mmonit.com/monit/documentation/monit.html#setting_a_local_alert_statement

This should do it:

check process blop with pidfile /.../blop.pid
    alert [email protected] but not on { pid }
    start program = "..."
    stop  program = "..."

Solution 2:

Another option is disabling alerts on

set alert [email protected] not on { instance, action }

This way you will not receive alerts for monit restart (instance) nor alerts for all services start/stop/restart (action).

Full list of possible filters for this can be found at: https://mmonit.com/monit/documentation/monit.html#Setting-an-event-filter (I think this list should also apply to the alerts attached to process checks of another answer for this question).