Allow for configuration of MongoDB about meteor

[mpj]

Whoa. +1

[jonathanKingston]

If there are no side effects to the "--nojournal" param then I suggest rolling this urgently.

[mavimo]

Mongo preallocate 5% of disk space (complete disk space, not only used disk space), so if you have 500Gb of disk each new DB preallocate 25Gb of space (and spend a lot of time to start, because it write 25Gb of data on disk). Mongo can be run with a specific config file, i suggest to add a settings to indicate config file (and write a default config file) so each user can change settings without rewrite meteor core library.

MongoDB Configuration parameter is

--config

[jonathanKingston]

Well said mavimo, Looks like --noprealloc would be a good default config to run when in testing.
--nojournal doesn't seem to be relevant to size but I might be wrong but again on test this would be great.

I suggest having a dbconfig file in .meteor directory but also a default too that turns off this size of DB, production environments can then change the dbconfig file as they choose.

[zwippie]

Side effect: Just discovered that meteor mongo does not work anymore when running mongodb with --nojournal.

Also, using --noprealloc seems to have no effect on my system, gigs of diskspace are allocated.

[mavimo]

You can try to use:

--oplogSize 32

to set pre-allocation space size (32M).

[n1mmy]

Nice catch! I've added --smallfiles to the default mongo flags. This brings down empty project usage down from 200MB to 1MB on my machine. The fix will go out next release.

6042b91

If you want to run meteor against a custom mongo, just specify the MONGO_URL environment variable when you run meteor. It will skip all the mongo startup jazz and use your mongo.

[willkuerlich]

So if I intend to run a Meteor app locally (LAN) and want to keep the internal MongoDB for convenience, is there a way to configure the internal Mongo instance?

[abernix]

The internal MongoDB will run so long as you are using meteor run in development. If you need custom configurations, you'll need to run your own version of MongoDB locally, and then set the MONGO_URL=mongodb://localhost:27017/database_name (or as desired/configured).

Regardless, this is an incredibly old issue and not the place for questions. Please try the Meteor forums!

[abernix]

It's worth pointing out that if an app doesn't depend on the mongo package in any way, the MongoDB server won't be started up in development either. This is thanks to #8999.