OS X LionにMongoDBをインストールする方法

HomeBrewで簡単にインストールできるようです。

$ brew search mongodb
mongodb
adamv/alt/mongodb-dev

$ brew install mongodb
==> Downloading http://fastdl.mongodb.org/osx/mongodb-osx-x86_64-2.0.6.tgz
######################################################################## 100.0%
==> Caveats
If this is your first install, automatically load on login with:
    mkdir -p ~/Library/LaunchAgents
    cp /usr/local/Cellar/mongodb/2.0.6-x86_64/homebrew.mxcl.mongodb.plist ~/Library/LaunchAgents/
    launchctl load -w ~/Library/LaunchAgents/homebrew.mxcl.mongodb.plist

If this is an upgrade and you already have the homebrew.mxcl.mongodb.plist loaded:
    launchctl unload -w ~/Library/LaunchAgents/homebrew.mxcl.mongodb.plist
    cp /usr/local/Cellar/mongodb/2.0.6-x86_64/homebrew.mxcl.mongodb.plist ~/Library/LaunchAgents/
    launchctl load -w ~/Library/LaunchAgents/homebrew.mxcl.mongodb.plist

Or start it manually:
    mongod run --config /usr/local/etc/mongod.conf

The launchctl plist above expects the config file to be at /usr/local/etc/mongod.conf.
==> Summary
/usr/local/Cellar/mongodb/2.0.6-x86_64: 17 files, 122M, built in 2.6 minutes

自動的に起動させるようにするには、上記の通り設定する必要がありますが、常に起動している必要が無いので、上記コマンドで起動させました。

$ mongod run --config /usr/local/etc/mongod.conf
Fri Jun 29 11:31:42 [initandlisten] MongoDB starting : pid=37591 port=27017 dbpath=/usr/local/var/mongodb 64-bit host=*****-no-MacBook-Air.local
Fri Jun 29 11:31:42 [initandlisten] db version v2.0.6, pdfile version 4.5
Fri Jun 29 11:31:42 [initandlisten] git version: e1c0cbc25863f6356aa4e31375add7bb49fb05bc
Fri Jun 29 11:31:42 [initandlisten] build info: Darwin erh2.10gen.cc 9.8.0 Darwin Kernel Version 9.8.0: Wed Jul 15 16:55:01 PDT 2009; root:xnu-1228.15.4~1/RELEASE_I386 i386 BOOST_LIB_VERSION=1_40
Fri Jun 29 11:31:42 [initandlisten] options: { bind_ip: "127.0.0.1", command: [ "run" ], config: "/usr/local/etc/mongod.conf", dbpath: "/usr/local/var/mongodb" }
Fri Jun 29 11:31:42 [initandlisten] journal dir=/usr/local/var/mongodb/journal
Fri Jun 29 11:31:42 [initandlisten] recover : no journal files present, no recovery needed
Fri Jun 29 11:31:42 [websvr] admin web console waiting for connections on port 28017
Fri Jun 29 11:31:42 [initandlisten] waiting for connections on port 27017