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Stress Testing Cometd (Jetty implementation)

These instructions show you how to stress test cometd from jetty 6.1.9 running on unix. The same basic steps apply to running on windows or mac and I'd be happy to add details instructions if somebody wants to contribute them.

The basic steps are:

  1. configure/tune operating system of test client and server machines
  2. install and configure jetty server
  3. run jetty bayeux test client
  4. interpret the results.

Configure/Tune operating system.

The main change needed to the operating system is that it needs to be able to support the number of connections (== file descriptors) for the test on both the server machine and the test client machines needed.

For a linux system, the file descriptor limit is change in the /etc/security/limit.conf file.
Add the following two lines (or change any existing nofile lines):

There are many other things that can be tuned in the server stack, and the zeus ZXTM documentation gives a good overview.

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Contact the core Jetty developers at www.webtide.com
private support for your internal/customer projects ... custom extensions and distributions ... versioned snapshots for indefinite support ... scalability guidance for your apps and Ajax/Comet projects ... development services from 1 day to full product delivery