I reviewed version 3. Will my application require message order and need to treat concurrency at the broker instead at in application? In terms of performance, a few simple bash scripts using nc to publish messages easily reached 10k messages, which is very good. So, fairly good impression on Kestrel, simple but works well.
Then, whichever consumers are subscribed to the topic can consume the same message. After creating a RabbitMQ service, they provide you with a sort of web management dashboard. I also installed and enabled the management plugin.
Of course ActiveMQ performance is awesome, is more than we need, we are using Oracle as persistence storage, you can use kahab or zookeeper and have a much higher performance, of course you also can create more ActiveMQ clusters, so broker performance probably will not be a problem for you, maybe if you are Netflix and want to process videos using the message broker, then you can consider use Kafka I have not benchmarks results for that, just saying about my 3 years experience using the two brokers processing millions of messages per day. It does not scale out well.
My requirements are not for full HA, just to make sure the publishers are never blocked so I dropped the storage backend replication in favor of a mesh of brokers. So as a producer, I broadcast the message to a topic. It depends RabbitMQ was written focused on High troughput when you don't cares about consistency, if you configure RabbitMQ to have consitency it will have a very similar performance to ActiveMQ. Distributed message processing would be a nice addition.
Message consistency is not RabbitMQ focus RabbitMQ can garantee that you will not lost messages, but what you must have in mind that by default RabbitMQ is configured for throughput not consistency. The product's reliability is the most valuable feature. Needs to focus on a certain facet and be good at it, instead of handling support for most of the available message brokers.
Kafka performance is just great and resource usage modest. In term of clustering, Kestrel is a bit limited but each can publish its availability to Zookeeper so that publishers and consumers can be informed of a missing server and adjust.
Posted by: Tehn | on October 2, 2012
Message brokers are not regularly covered here but are, nonetheless, important web-related technologies. The product's reliability is the most valuable feature. It offers a high guarantee that the service will be available and non-blocking under any circumstances.
Grant order and avoid concurrency is not possible with RabbitMQ Sometimes you may want to have some kind of order in your messages even when you have multiple consumers, for example: To further help, you can specify all the brokers on the connection string and the client library will just reconnect to another if the one you are connected to goes down.
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