Meteor without mongo

Question

With 0.6.5 release it is possible to develop non web apps with meteor. I rebuild it from scratch for ARM processor but I don't want DB support at all. (Mongo is a processor killer, has to high footprint and I simply don't need it)

ARM should work as DDP client only, with this in mind I build it manually without mongo.

And tried to build simplest app possible only 1 package at start (all standard packages removed)

meteor

and one file in server folder

main = function(argv){
  return "DAEMON"
}

Meteor.setInterval(function(){
  console.log("HellOnWorld");
},1000);

On machine with full meteor install it works as expected but without mongo installed I got errors

Unexpected mongo exit code 127. Restarting.
Unexpected mongo exit code 127. Restarting.
Initializing mongo database... this may take a moment.
Unexpected mongo exit code 127. Restarting.
Can't start mongod

Obviously I don't have and want mongo.

Is there any way to start meteor without waiting for mongo db ?

Meteor team plans to support other db's so it must be implemented sooner or later.

Answer 1

UPDATE

For newer versions of Meteor you need to remove the mongo package. The mongo package is embedded in the meteor-platform package. So you need to remove that and add all the rest back (from https://github.com/meteor/meteor/tree/devel/packages/meteor-platform):

meteor remove meteor-platform
meteor add  meteor webapp logging tracker session ddp blaze spacebars templating check underscore jquery random ejson templating check underscore jquery random ejson

Then your app won't use Mongo anymore :).

In dev mode you can get rid of mongo by setting the MONGO_URL environment variable to something else and start meteor. For example: MONGO_URL=mongodb://nowhere meteor

Answer 2

Turns out that if you just set any MONGO_URL environment variable before running meteor, it won't start its local MongoDB! Fantastic for testing packages that don't depend on Mongo.

Before:

$ meteor test-packages ./
Testing fortawesome:fontawesome-compat...
[[[[[ Tests ]]]]]

=> Started proxy.
=> Started MongoDB.
=> Started your app.

=> App running at: http://localhost:3000/

After

$ MONGO_URL=mongodb://mysql.com meteor test-packages ./  # haha
Testing fortawesome:fontawesome-compat...
[[[[[ Tests ]]]]]

=> Started proxy.
=> Started your app.

=> App running at: http://localhost:3000/

Look ma, no Mongo!

I have confirmed that no mongo process is started, and no .meteor/local/db folder is created.