Hi,
Please see below to on how to resolve mhn-celery-beat fatal error.
root@mhn-server:~# supervisorctl status
geoloc RUNNING pid 2262, uptime 0:00:23
honeymap RUNNING pid 2248, uptime 0:00:24
hpfeeds-broker RUNNING pid 2284, uptime 0:00:22
hpfeeds-logger-splunk RUNNING pid 2241, uptime 0:00:25
mhn-celery-beat FATAL Exited too quickly (process log may
have details)
mhn-celery-worker RUNNING pid 2087, uptime 0:11:56
mhn-collector RUNNING pid 2278, uptime 0:00:22
mhn-uwsgi RUNNING pid 2271, uptime 0:00:22
mnemosyne RUNNING pid 2252, uptime 0:00:23
root@mhn-server:~# tail /var/log/mhn/mhn-celery-beat.err
ERROR: Pidfile (celerybeat.pid) already exists.
Seems we're already running? (pid: 1176)
ERROR: Pidfile (celerybeat.pid) already exists.
Seems we're already running? (pid: 1176)
ERROR: Pidfile (celerybeat.pid) already exists.
Seems we're already running? (pid: 1176)
ERROR: Pidfile (celerybeat.pid) already exists.
Seems we're already running? (pid: 1176)
ERROR: Pidfile (celerybeat.pid) already exists.
Seems we're already running? (pid: 1176)
root@mhn-server:~# kill -9 1176
root@mhn-server:~# supervisorctl start mhn-celery-beat
mhn-celery-beat: started
root@mhn-server:~# supervisorctl status
geoloc RUNNING pid 2262, uptime 0:14:35
honeymap RUNNING pid 2248, uptime 0:14:36
hpfeeds-broker RUNNING pid 2284, uptime 0:14:34
hpfeeds-logger-splunk RUNNING pid 2241, uptime 0:14:37
mhn-celery-beat RUNNING pid 2313, uptime 0:13:40
mhn-celery-worker RUNNING pid 2087, uptime 0:26:08
mhn-collector RUNNING pid 2278, uptime 0:14:34
mhn-uwsgi RUNNING pid 2271, uptime 0:14:34
mnemosyne RUNNING pid 2252, uptime 0:14:35
Hopefully, it'll resolve your issue.