Here is my service file
[Unit] Description=HTTP Hello World After=network.target [Service] User=mukund Environment=MY_HOST=localhost WorkingDirectory=/home/mukund/Work/nodejs/nodeExpTutorial ExecStart=/usr/bin/pm2 start config.json [Install] WantedBy=multi-user.target where config.json is
{"apps" : [ { "script" : "app.js", "instances" : 3, "exec_mode" : "cluster" }] } when i run this command i am getting this error
mukund@mukund-ThinkPad-E15:~/Work/nodejs/nodeExpTutorial$ systemctl status demo-node-app.service ● demo-node-app.service - HTTP Hello World Loaded: loaded (/etc/systemd/system/demo-node-app.service; enabled; vendor preset: enabled) Active: failed (Result: exit-code) since Fri 2020-08-07 19:09:00 IST; 13s ago Process: 38182 ExecStart=/usr/lib/node_modules/pm2/bin/pm2 config.json (code=exited, status=1/FAILURE) Main PID: 38182 (code=exited, status=1/FAILURE) Aug 07 19:08:59 mukund-ThinkPad-E15 systemd[1]: Started HTTP Hello World. Aug 07 19:09:00 mukund-ThinkPad-E15 pm2[38182]: [PM2][ERROR] Command not found Aug 07 19:09:00 mukund-ThinkPad-E15 pm2[38182]: usage: pm2 [options] <command> Aug 07 19:09:00 mukund-ThinkPad-E15 pm2[38182]: pm2 -h, --help all available commands and options Aug 07 19:09:00 mukund-ThinkPad-E15 pm2[38182]: pm2 examples display pm2 usage examples Aug 07 19:09:00 mukund-ThinkPad-E15 pm2[38182]: pm2 <command> -h help on a specific command Aug 07 19:09:00 mukund-ThinkPad-E15 pm2[38182]: Access pm2 files in ~/.pm2 Aug 07 19:09:00 mukund-ThinkPad-E15 systemd[1]: demo-node-app.service: Main process exited, code=exited, status=1/FAILURE Aug 07 19:09:00 mukund-ThinkPad-E15 systemd[1]: demo-node-app.service: Failed with result 'exit-code'. then i changed the service script to this
[Unit] Description=HTTP Hello World After=network.target [Service] User=mukund Environment=MY_HOST=localhost WorkingDirectory=/home/mukund/Work/nodejs/nodeExpTutorial ExecStart=/usr/bin/pm2 start start config.json [Install] WantedBy=multi-user.target reloaded the serveice
mukund@mukund-ThinkPad-E15:~/Work/nodejs/nodeExpTutorial$ sudo systemctl daemon-reload started the service again
mukund@mukund-ThinkPad-E15:~/Work/nodejs/nodeExpTutorial$ sudo systemctl start demo-node-app.service then on the status i got this success message
mukund@mukund-ThinkPad-E15:~/Work/nodejs/nodeExpTutorial$ sudo systemctl status demo-node-app.service ● demo-node-app.service - HTTP Hello World Loaded: loaded (/etc/systemd/system/demo-node-app.service; enabled; vendor preset: enabled) Active: inactive (dead) since Fri 2020-08-07 19:10:02 IST; 20s ago Process: 38359 ExecStart=/usr/lib/node_modules/pm2/bin/pm2 start config.json (code=exited, status=0/SUCCESS) Main PID: 38359 (code=exited, status=0/SUCCESS) Aug 07 19:10:02 mukund-ThinkPad-E15 pm2[38359]: [PM2] Applying action restartProcessId on app [app](ids: [ 0 ]) Aug 07 19:10:02 mukund-ThinkPad-E15 pm2[38359]: [PM2] [app](0) ✓ Aug 07 19:10:02 mukund-ThinkPad-E15 pm2[38359]: ┌─────┬───────────┬─────────────┬─────────┬─────────┬──────────┬────────┬──────┬───────────┬─────> Aug 07 19:10:02 mukund-ThinkPad-E15 pm2[38359]: │ id │ name │ namespace │ version │ mode │ pid │ uptime │ ↺ │ status │ cpu > Aug 07 19:10:02 mukund-ThinkPad-E15 pm2[38359]: ├─────┼───────────┼─────────────┼─────────┼─────────┼──────────┼────────┼──────┼───────────┼─────> Aug 07 19:10:02 mukund-ThinkPad-E15 pm2[38359]: │ 0 │ app │ default │ 1.0.0 │ fork │ 38367 │ 0s │ 0 │ online │ 0% > Aug 07 19:10:02 mukund-ThinkPad-E15 pm2[38359]: │ 1 │ config │ default │ 1.0.0 │ fork │ N/A │ 0 │ 0 │ stopped │ 0% > Aug 07 19:10:02 mukund-ThinkPad-E15 pm2[38359]: └─────┴───────────┴─────────────┴─────────┴─────────┴──────────┴────────┴──────┴───────────┴─────> Aug 07 19:10:02 mukund-ThinkPad-E15 pm2[38359]: [PM2][WARN] Current process list running is not in sync with saved list. Type 'pm2 save' to synch> Aug 07 19:10:02 mukund-ThinkPad-E15 systemd[1]: demo-node-app.service: Succeeded. I got the app started but i cannot use the stop command to stop it
mukund@mukund-ThinkPad-E15:~/Work/nodejs/nodeExpTutorial$ sudo systemctl stop demo-node-app.service mukund@mukund-ThinkPad-E15:~/Work/nodejs/nodeExpTutorial$ sudo systemctl status demo-node-app.service ● demo-node-app.service - HTTP Hello World Loaded: loaded (/etc/systemd/system/demo-node-app.service; enabled; vendor preset: enabled) Active: inactive (dead) since Fri 2020-08-07 19:10:02 IST; 45s ago Process: 38359 ExecStart=/usr/lib/node_modules/pm2/bin/pm2 start config.json (code=exited, status=0/SUCCESS) Main PID: 38359 (code=exited, status=0/SUCCESS) Aug 07 19:10:02 mukund-ThinkPad-E15 pm2[38359]: [PM2] Applying action restartProcessId on app [app](ids: [ 0 ]) Aug 07 19:10:02 mukund-ThinkPad-E15 pm2[38359]: [PM2] [app](0) ✓ Aug 07 19:10:02 mukund-ThinkPad-E15 pm2[38359]: ┌─────┬───────────┬─────────────┬─────────┬─────────┬──────────┬────────┬──────┬───────────┬─────> Aug 07 19:10:02 mukund-ThinkPad-E15 pm2[38359]: │ id │ name │ namespace │ version │ mode │ pid │ uptime │ ↺ │ status │ cpu > Aug 07 19:10:02 mukund-ThinkPad-E15 pm2[38359]: ├─────┼───────────┼─────────────┼─────────┼─────────┼──────────┼────────┼──────┼───────────┼─────> Aug 07 19:10:02 mukund-ThinkPad-E15 pm2[38359]: │ 0 │ app │ default │ 1.0.0 │ fork │ 38367 │ 0s │ 0 │ online │ 0% > Aug 07 19:10:02 mukund-ThinkPad-E15 pm2[38359]: │ 1 │ config │ default │ 1.0.0 │ fork │ N/A │ 0 │ 0 │ stopped │ 0% > Aug 07 19:10:02 mukund-ThinkPad-E15 pm2[38359]: └─────┴───────────┴─────────────┴─────────┴─────────┴──────────┴────────┴──────┴───────────┴─────> Aug 07 19:10:02 mukund-ThinkPad-E15 pm2[38359]: [PM2][WARN] Current process list running is not in sync with saved list. Type 'pm2 save' to synch> Aug 07 19:10:02 mukund-ThinkPad-E15 systemd[1]: demo-node-app.service: Succeeded. but as you can see the app is still active, i cannot shut it down
can someone help me in figuring out what the issue actually is?
1 Answer
You should add an ExecStop directive in your service file, under the [Service] section, with the appropriate command to stop the service. It may be like:
ExecStop=/usr/bin/pm2 stop app_name Change the syntax according to your needs (I found it here).
