MongoDB Startup Scripts for OS X

This is a very basic startup script for running MongoDB on Mac OS X with multiple shards.

It is intended to run the defaults and without any authentication, but remain easy to modify to suit your needs. Feel free to fork to add features.

Dependencies

Make sure to install MongoDB from here:

http://www.mongodb.org/display/DOCS/Downloads

The script assumes you have installed mongodb to

/usr/local/mongodb

You will also need to create the following folders

/usr/local/mongodb/log
/usr/local/mongodb/db/a
/usr/local/mongodb/db/b
/usr/local/mongodb/db/config
/usr/local/mongodb/db/routing

Running

Using sudo or as root, copy the MongoDB directory and all its contents to /Library/StartupItems/ then start it like this:

sudo /Library/StartupItems/MongoDB/MongoDB start

Setup

Once mongo is running, you will need to connect to the mongos instance and configure the shards:

$ mongo
mongos> sh.addShard("localhost:10000");
mongos> sh.addShard("localhost:10001");

You should only need to do this once. Now everything should be configured and working. However, by default, new databases/collections are not sharded and will only exist on the first shard. To enable sharding for a database/collection you need to do the following:

mongos> sh.enableSharding("<database>");

This enables sharding for the database, but no sharding is performed

mongos> sh.shardCollection("<database>.<collection>", shard-key-pattern);

A simple shard-key-pattern is { "_id": 1 }. This will now enable sharding on the collection using the shard key.

For more information see:

http://docs.mongodb.org/manual/tutorial/deploy-shard-cluster/

TODO

• Work with mongodb configuration files
• Handle replication (maybe)

Copyright and License

MongoDB Startup Script for OS X Copyright (C) 2012 Jeff Sawatzky

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.