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From Sanjeev Kulkarni <sanj...@locomatix.com>
Subject Re: nodetools cfstats question
Date Thu, 29 Sep 2011 16:52:32 GMT
Hi Thamizh,
Thanks for the answer.
I understand the part about the Key cache capacity being 200000 which is the
default value.
But Key cache size being 99k? Does this represent that cassandra has
allocated 99k for key cache even though the actual keys are far less?

On Thu, Sep 29, 2011 at 3:47 AM, Thamizh <tcegrid@yahoo.co.in> wrote:

> please check [default@unknown] help create column family;
> These are default values,  until you explicitly mentioned on CF creation.
>
> Regards,
> Thamizhannal
> ------------------------------
> *From:* Sanjeev Kulkarni <sanjeev@locomatix.com>
> *To:* user@cassandra.apache.org
> *Sent:* Thursday, 29 September 2011 10:33 AM
> *Subject:* nodetools cfstats question
>
> Hey guys,
> I'm using a three node cluster running 0.8.6 with rf of 3. Its a freshly
> installed cluster with no upgrade history.
> I have 6 cfs and only one of them is written into. That cf has around one
> thousand keys. A quick key_range_scan verifies this.
> However when I do cfstats, I see the following for this cf.
>
> Number of Keys (estimate): 5248
> Key cache capacity: 200000
> Key cache size: 99329
>
> What is the definition of these three output values? Both the Number of
> Keys and Key Cache size are way over what they should be.
> Thanks!
>
>
>

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