plugin to use MongoDB as backend.

tested in ubuntu 10.04 and ubuntu 10.10

BUILDING THIS PLUGIN
Right now, it seems to be necessary to copy the 10gen c-driver directly under
the ./plugins/ommongodb subdirectory. Then, you need to follow their build
instructions on how to build the mongodb c driver:
http://api.mongodb.org/c/current/building.html

This is clumpsy, and if someone has ideas on how to improve this situation,
please drop us a line. For obvious reasons, ./configure does not detect
a missing mongodb c driver.

In order to successfully build ommongodb, you NEED to use the v0.2 version of
the mongo c driver. As it looks, the driver breaks API compatibility and the
curret v0.4 driver seems to have a totally different API (at least this is
what I currently (2012-03-08) see.

configuration:

in your /etc/rsyslog.conf, together with other modules:
$ModLoad ommongodb # provides mongodb support

then in your /etc/rsyslog.d (check your distribution way to organize the configuration..) you create a file 10-mongodb.conf with the following content:

*.*     action(type="ommongodb" db="..." collection="...")

Note: currently templates are not supported. Ommongodb will pick a default
schema and use the message object content for that (templateless).


TODO
we must ensure that the collection is a capped collection
refactor my code :-)

email Victor Pereira <victor.pereira@bigrails.com>
twitter twitter.com/vpereira

part of this doc by Rainer Gerhards <rgerhards@adiscon.com>