Some users have asked what performance one should expect from a ZK cluster based on number of cores, client load, disk performance, etc... I put together the following survey that looks at performance on hardware with varying core counts using a shared 7200RPM disk. Many of our users don't wish to use a dedicated logging device, so I've run all the tests with the ZK datadir sharing space with the OS (no dedicated transactional log device). I hope you find this useful:



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