Good way to capture/replay sessions from Apache Log?

Posted by Mark Harrison on Stack Overflow See other posts from Stack Overflow or by Mark Harrison
Published on 2010-04-16T21:01:08Z Indexed on 2010/04/16 21:03 UTC
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web-development

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Performance

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regression-testing

For performance testing, I would like to capture some traffic from a production server and use that as a basis to replay the request to a test server in order to simulate a realistic load in our development environment. These are all stateless queries, so no issues regarding cookies, sessions, etc.

The Apache log timestamps everything down to a 1 second resolution, but that's not fine enough granularity for our peak times. What's the best way to capture more fine-grained timestamps for replay? And is there some ab-like load generating program that can use this data to replicate load?

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