One Year with MongoDB

Wordnik recently has surpassed one year in production with MongoDB and they've written about the experience so far. Now we've written about Wordnik in the past but it's always interesting to go back and see how things have evolved.

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Performance tweaks for MongoDB

Kristina Chodorow has a post where she discusses a few tweaks you can make to your code to improve performance in MongoDB.

Some of the recommendations at a high level are basic, such as the recommendation to not waste any connections. However, there are some pretty interesting side effects with the PHP connection code.

$connection = new Mongo();
$connection->connect();

In the previous code it appears the user wants to create a new connection. However, under the hood the following is happening:

1. The constructor connects to the database.
2. connect() sees that you’re already connected, assumes you want to reset the connection.
3. Disconnects from the database.
4. Connects again.

The result is that you have doubled your execution time. This is just one example of many that Kristina provides. If you are using MongoDB I'd suggest you check it out.

Read more: Oh, the Mistakes I've Seen

Links of the Day - 2010/07/13

Links of the day for July 13, 2010

• B is for Billion - So a couple of weeks ago we had an article about Approaching 1 Billion Documents with MongoDB, well the folks at Wordnik have outdone that nine fold. That's right 9 billion documents. Their public API is serving up 100 million requests a week "without breaking a sweat".
• NoSQL Pioneers Are Driving the Web’s Manifest Destiny - Continuation of the Twitter not pushing Cassandra for tweet storage, this time from GigaOM.
• MongoDB Performance and Durability - Mikeal Rogers from CouchIO offers up this excellent article that examines the performance and durability of MongoDB.