Auto restart or Proper Handling socket.io server on exception in linux

I’ved got my socket.io server running in the background. However, there are several situation where it died. What can I do to make my socket.io server auto restart whenever it dies or terminated.

This is how I started my node server

> node server &

however the server thrown an exception and died.

events.js:141
      throw er; // Unhandled 'error' event
      ^

Error: Redis connection to pub-redis-us-east1-garantiabata.com:12087 failed - connect ETIMEDOUT 54.179.28.165:12087
    at RedisClient.on_error (/home/org-chatserver/node_modules/redis/index.js:185:24)
    at Socket.<anonymous> (/home/org-chatserver/node_modules/redis/index.js:95:14)
    at emitOne (events.js:77:13)
    at Socket.emit (events.js:169:7)
    at emitErrorNT (net.js:1253:8)
    at doNTCallback2 (node.js:450:9)
    at process._tickCallback (node.js:364:17)
^C

This is my environment

Linux version 2.6.32-042stab090.5 (root@kbuild-rh6-x64) (gcc version 4.4.6 20120305 (Red Hat 4.4.6-4) (GCC) ) #1 SMP Sat Jun 21 00:15:09 MSK 2014

and I believe my team is using this:

https://github.com/jbavari/ionic-socket.io-redis-chat

Answer

You can use pm2 to monitor logs, auto restart… etc. For example:

sudo npm install -g pm2
pm2 start app.js --watch

More about watch & restart.

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Answer