Archive for October, 2011

Performance of Queues: when less is more

Thursday, October 27th, 2011

Since the new persister arrived in RabbitMQ 2.0.0 (yes, it's not so new anymore), Rabbit has had a relatively good story to tell about coping with queues that grow and grow and grow and reach sizes that preclude them from being able to be held in RAM. Rabbit starts writing out messages to disk fairly early on, and continues to do so at a gentle rate so that by the time RAM gets really tight, we've done most of the hard work already and thus avoid sudden bursts of writes. Provided your message rates aren't too high or too bursty, this should all happen without any real impact on any connected clients.

Some recent discussion with a client made us return to what we'd thought was a fairly solved problem and has prompted us to make some changes. (more…)

High Availability in RabbitMQ: solving part of the puzzle

Tuesday, October 25th, 2011

In RabbitMQ 2.6.0 we introduced Highly Available queues. These necessitated a new extension to AMQP, and a fair amount of documentation, but to date, little has been written on how they work. (more…)

Keeping It Realtime Conference (Portland, OR)

Wednesday, October 19th, 2011

There's a lot of hot stuff happening in the web technology lately. JavaScript seems to be bearing the torch, both browser-side and server-side.

At the RabbitMQ HQ we're interested in developments in the wide world of messaging, and we're particularly excited about the JavaScript angle on messaging - namely WebSockets and related technologies.