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Restart Node.js automatically
Anne Gentle edited this page Sep 13, 2015
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If you are worried about lost connections to mongolabs or node crashing,
configure your apps to run in an auto restart wrapper. You have some options,
one is a tool called forever
, the other is production process manager (pm2
)
to restart node if it crashes.
Here is how to implement forever: (**note some hosting services already use forever but in some cases they don't)
These steps where tested with Linux and Windows.
1. At the command prompt type: `sudo npm install forever -g`.
2. Once it is installed type: `forever start server.js`.
3. To see if it is running type: `forever list`.
The github respository for `forever` is: https://github.com/nodejitsu/forever.
There is also a production process manager for node called `pm2`. It can also
autorestart the server, gives more control and a web interface to see the status of node applications running on the server.
Here is how to install and use pm2:
1. Type: `sudo npm install -g pm2`.
2. Change directories into the nightscout directory: `cd pm2`.
3. Type: `pm2 start server.js` to start the server app for cgm-remote-monitor,
for example.
4. To see if the `server.js` app is running, use the web interface which is
running on your webserver address on port 9615), or type: `pm2 status` in
the command line for the server.
This process manager uses the `my.env` environment variables but it keeps them even after restarting the application, so use `pm2 describe server` to view the environment variables used at the start of `server.js`.
The github repository for `pm2` is https://github.com/Unitech/PM2.