Pm2 changing log file location

Question

I have couple of questions regarding pm2

• How can I change the location of server-error-0.log and server-out-0.log files location from c:\users\user\.pm2\logs to other drive, due to restriction in server's c drive access.
• Can I log the error and info in database instead of a log file? Do I need to write a separate module for that or is there any way to achieve this?

Answer 1

How can I change the location of ...log file location?

To change pm2's log file location, there are 2 solutions: define log path as parameter when pm2 command is executed (-l, -o, -e), or start pm2 from a configuration file.

For the parameter solution, here is an example:

pm2 start app.js -o ./out.log -e ./err.log

If you don't want to define log path every time when pm2 is executed, you can generate a configuration file, define error_file and out_file, and start pm2 from that:

1. Generate a configuration file: pm2 ecosystem simple. This would generate a file ecosystem.config.js, with following content:

   module.exports = {
     apps : [{
       name   : "app1",
       script : "./app.js"
     }]
   }
   

2. Define error_file (for error log) and out_file (for info log) in the file, such as:

   module.exports = {
     apps : [{
       name   : "app1",
       script : "./app.js",
       error_file : "./err.log",
       out_file : "./out.log"
     }]
   }
   

3. Delete existing processes in pm2:

   pm2 delete <pid>
   

   You can get pid by doing:

   pm2 status
   

4. Start the process from the configuration file:

   pm2 start ecosystem.config.js
   

In this way, the logs are saved to ./err.log and ./out.log.

Please refer to the document for detail information.

Can I log the error and info in database instead of a log file?

I didn't find any resources in official document. It seems you need to write code and save log to database yourself.