CMB performances

[jiji]

Hi,

do you have some benchmark results of CNS/CQS?

if yes, which tools to you use?

thanks

[boriwo]

Yes we did some benchmarking with small to medium size deployments and we experimented with 1000s of cqs queues and 1000s of cns subscribers. We found, roughly speaking, that we could pump around 8000 messages / sec (2kb random content) through the system - equivalent to 1000 msg/sec/node, we were using a relatively small 8 node Cassandra ring. Obviously these numbers highly depend on the hardware you use, network bandwidth and a number of other factors. Stay tuned for more accurate / detailed benchmarking data. We are also getting ready to perform some larger scale load testing with millions of queues and topics and I will share more details in this forum in the future. As far as tools for testing, there are some handy tools in the cmb unit test section: There is a cqs stress tester, a cns stress tester and also an http endpoint servlet you can use for cns testing. Other than that we rely on standard tools for rest api testing such as Apache ab etc.

[jiji]

Thanks for all these information. I will also benchmark it in order to characterize the behavior of CMB and find the appropriate architecture using x CNS / CNS Worker / CQS nodes.