On Tue, Aug 17, 2010 at 10:55 AM, Artie Copeland <yeslinux....@gmail.com> wrote: > if i set a key cache size of 100% the way i understand how that works is: > - the cache is not write through, but read through > - a key gets added to the cache on the first read if not already available > - the size of the cache will always increase for ever item read. so if you > have 100mil items your key cache will grow to 100mil > Here are my questions: > if that is the case then what happens if you only have enough mem to store > 10mil items in your key cache?
Then don't use a percentage. > do you lose the other 90% how is it determined what is removed? second-chance fifo. > will the server keep adding til it gets OOM? that or a gc storm > if you add a row cache as well how does that affect your percentage? > if there a priority between the cache? or are they independant so both will > try to be satisfied which would result in an OOM? they are independent -ryan
