26 August 2010

This wasn't documented anywhere, so I figured others might find it useful. In MongoDB you can tail a capped collection, much like using the tail -f command. This works because Mongo uses cursors. Tailing's a nifty trick, especially if you're using Mongo for logging.

I'm using Phil Burrows mongodblogger to log all Rails reqs to a capped collection at the moment, I'd recommend dropping this into your rails app, after modifying it to read your mongo config so you always have it ready.



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