Error: You seems to run on a Mac OS, node-usage can't get monitor data about pm2

[Unitech]

Hello, thanks for reporting issues.

PM2 is using the module https://github.com/arunoda/node-usage to retrieve monitoring data for a specific process, unfortunately it's still not compatible with Mac OSx, feel free to pull request.

But I would like to tell that pm2 is a production module, who should be mainly used on servers

Cheers !

[jhurliman]

I sent a pull request to node-usage (arunoda/node-usage#5) to address this. Once it is merged in and a new version is published to npm, does anything need to change in pm2?

[Unitech]

Excellent, I will add a way to update pm2 smoothly

[breaklee]

i'm using pm2 version 0.4.7. and i've installed usage(node-usage)..
but it can't operate. pm2 monit on macox.
how can i use it?

[breaklee]

and my 'usage' version is 0.3.5

[arunoda]

Node Usage has been patched with @jhurliman 's pull request.
And published to npm as 0.3.6

Hope now pm2 can be used in mac too :)

[Unitech]

Ty
I've updated pm2 to 0.4.8

Here is the update procedure for people who wants to upgrade to newest version : https://github.com/Unitech/pm2#updating-pm2-and-keeping-processes-alive

I think I got the same error :/

Did I need to install Monit on my Mac ? or node-usage do the same think like Monit ?

$ pm2 monit

/usr/local/lib/node_modules/pm2/lib/Monit.js:27
    throw new Error('You seems to run on a Mac OS, node-usage can\'t get monit
          ^
Error: You seems to run on a Mac OS, node-usage can't get monitor data
    at Object.Monit.init (/usr/local/lib/node_modules/pm2/lib/Monit.js:27:11)
    at /usr/local/lib/node_modules/pm2/bin/pm2:588:11
    at /usr/local/lib/node_modules/pm2/lib/Satan.js:152:5
    at /usr/local/lib/node_modules/pm2/node_modules/axon-rpc/lib/client.js:43:10
    at Parser.onmessage (/usr/local/lib/node_modules/pm2/node_modules/axon/lib/sockets/req.js:65:8)
    at Parser.frameBody (/usr/local/lib/node_modules/pm2/node_modules/axon/lib/parser.js:106:10)
    at Parser.write (/usr/local/lib/node_modules/pm2/node_modules/axon/lib/parser.js:50:13)
    at Parser.frameHeader (/usr/local/lib/node_modules/pm2/node_modules/axon/lib/parser.js:81:30)
    at Parser.write (/usr/local/lib/node_modules/pm2/node_modules/axon/lib/parser.js:49:36)
    at Socket.EventEmitter.emit (events.js:95:17)

[jhurliman]

@igorissen, the short answer is that the daemon needs to be run as root on OSX. Run pm2 kill, then sudo pm2 start yourapp.json. I've submitted a pull request at #39 to catch this issue and print out a helpful error message instead of the outdated warning about node-usage not working on Mac OS.

[jhurliman]

Just a heads up, I submitted another pull request to node-usage that allows it to run on OSX without root privileges (arunoda/node-usage#7). If that gets merged, I'll modify my pull request for pm2 to not require the daemon to be run as root on OSX.

[jhurliman]

node-usage 0.3.7 is out, and my pull request has been updated.

It works now ! Thank you.