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From Shoaib Mir <>
Subject Re: key cache size calculation
Date Tue, 03 Apr 2012 23:07:02 GMT
On Wed, Apr 4, 2012 at 8:04 AM, aaron morton <>wrote:

> It depends on the workload.
> Increase the cache size until you see the hit rate decrease, or see it
> create memory pressure. Watch the logs for messages that the caches have
> been decreased.
> Take a look at the Recent Read Latency for the CF. This is how long it
> takes to actually read data on that node. You can then work out the
> throughput taking into account the concurrent_readers setting in the yaml.
Thanks Aaron, I will try this.


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