Why is the database of a Meteor app that has been run once (and never loaded) taking up nearly 3GB?

Question

UPDATE: this was fixed after Meteor v0.4 (2012). For historical purposes:

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Excerpt from du:

2890768 ./Code/Meteor/         


        

Answer 1

When meteor run is executed, it starts mongodb with default mongo settings, so it creates (massive) prealloc files in .meteor/local/db/journal.

There is no obvious way to disable this behavior. What I have done as a workaround is change the file app/lib/mongo_runner.js and add a --nojournal parameter that gets passed to mongodb at startup.

I created an issue for this: https://github.com/meteor/meteor/issues/15