Is it possible that your are reading at READ.ONE and that READ.ONE only warms cache on 1 of your three nodes= 20. 2nd read warms another 60%, and by the third read all the replicas are warm? 99% ?
This would be true if digest reads were not warming caches. Edward On Thu, Jan 13, 2011 at 4:07 PM, Saket Joshi <sjo...@touchcommerce.com> wrote: > The cache is 800,000 per node , I have 15 nodes in the cluster. I see the > cache value increased after the first run, the row cache hit rate was 0 for > first run. For second run of the same data , the hit rate increased to 30% > but on the third it jumps to 99% > > > -Saket > > -----Original Message----- > From: Chris Burroughs [mailto:chris.burrou...@gmail.com] > Sent: Thursday, January 13, 2011 1:03 PM > To: user@cassandra.apache.org > Cc: Saket Joshi > Subject: Re: cassandra row cache > > On 01/13/2011 02:05 PM, Saket Joshi wrote: >> Yes it does change. >> > > So the confusing part for me is why a cache of size 80,000 would not be > fill after 1,600,000 requests. Can you observe items cached and hit > rate while making the first 1.6 million row query? >
