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From Jonathan Ellis <jbel...@gmail.com>
Subject Re: Read Performance
Date Wed, 31 Mar 2010 16:04:50 GMT
Can you redirect some of the reads from memcache to cassandra?  Sounds
like the cache isn't getting warmed up.

On Wed, Mar 31, 2010 at 11:01 AM, James Golick <jamesgolick@gmail.com> wrote:
> I'm testing on the live cluster, but most of the production reads are being
> served by the cache. It's definitely the right CF.
>
> On Wed, Mar 31, 2010 at 8:30 AM, Jonathan Ellis <jbellis@gmail.com> wrote:
>>
>> On Wed, Mar 31, 2010 at 12:01 AM, James Golick <jamesgolick@gmail.com>
>> wrote:
>> > Okay, so now my row cache hit rate jumps between 1.0, 99.5, 95.6, and
>> > NaN.
>> > Seems like that stat is a little broken.
>>
>> Sounds like you aren't getting enough requests for the
>> getRecentHitRate to make sense.  use getHits / getRequests.
>>
>> But if you aren't getting enough requests for getRecentHitRate, are
>> you sure you're tuning the cache on the right CF for your 35ms test?
>> Are you testing live?  If not, what's your methodology here?
>>
>> -Jonathan
>
>

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