pm2 doesnt work with crontab
Im trying to restart my MM every day in the night so i want to use a crontab.
Might be easy:
sudo crontab -e
59 23 * * * pm2 restart mm
But that doesnt work.
The crontab seems to work:
Feb 27 13:37:01 raspberrypi CRON: (root) CMD (pm2 restart mm)
And i did a pm2 flush before and after the crontab did its job there is nothing in the log:
pi@raspberrypi:~ $ pm2 logs --lines=100 [TAILING] Tailing last 100 lines for [all] processes (change the value with --lines option) /home/pi/.pm2/pm2.log last 100 lines: /home/pi/.pm2/logs/mm-error.log last 100 lines: /home/pi/.pm2/logs/mm-out.log last 100 lines: 0|mm | [27.02.2021 13:38.28.339] [INFO] Newsfeed-Fetcher: Broadcasting 39 items.
so it seems that pm2 didnt do anything.
Next try after some online research:
pi@raspberrypi:~ $ which node /home/pi/.config/nvm/versions/node/v10.23.0/bin/node pi@raspberrypi:~ $ which pm2 /home/pi/.config/nvm/versions/node/v10.23.0/bin/pm2
i changed the crontab to
1 14 * * * /home/pi/.config/nvm/versions/node/v10.23.0/bin/node /home/pi/.config/nvm/versions/node/v10.23.0/bin/pm2 restart mm
(1 14 is for testing)
It still doesnt work: no output in pm2 log.
Does anyone have an idea?
@keineahnung123 u need to run pm2 as the user that did the save and where mm was running. it cannot be root
you also create a user specific crontab in /var/spool/cron
user needs to own the file, then username is not required on the contab entries themselves
Each user, including root, can have a cron file. These files don't exist by default, but can be created in the /var/spool/cron directory using the crontab -e command that's also
sudo nano /etc/crontab
30 16 * * * pi /home/pi/.config/nvm/versions/node/v10.23.0/bin/node /home/pi/.config/nvm/versions/node/v10.23.0/bin/pm2 stop mm
it seems to work
@keineahnung123 i don’t think u need those paths now
45 16 * * * pi pm2 stop mm
doesnt work. I have to set the paths.
I think there went something wrong when i upgraded to buster.
I had a shellscript with
cd ~/MagicMirror && npm start
which worked fine and after the upgrade to buster i have to use
cd ~/MagicMirror && /home/pi/.config/nvm/versions/node/v10.23.0/bin/npm start
otherwise it says “npm: not found”
Same seems to be with crontab…
@keineahnung123 looks like u need to reinstall nvm
Assassins last edited by
Hello, i Can send you a script om monday, where you make backup to a small .img and where is restart you MagicMirror on the same time.