cassandra-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Franc Carter <franc.car...@sirca.org.au>
Subject Re: keycache persisted to disk ?
Date Mon, 13 Feb 2012 06:08:42 GMT
On Mon, Feb 13, 2012 at 5:03 PM, zhangcheng <zhangcheng@jike.com> wrote:

> **
>
> I think the keycaches and rowcahches are bothe persisted to disk when
> shutdown, and restored from disk when restart, then improve the performance.
>

Thanks - that would explain at least some of what I am seeing

cheers


>
> 2012-02-13
> ------------------------------
>  zhangcheng
> ------------------------------
> *发件人:* Franc Carter
> *发送时间:* 2012-02-13  13:53:56
> *收件人:* user
> *抄送:*
> *主题:* keycache persisted to disk ?
>
> Hi,
>
> I am testing Cassandra on Amazon and finding performance can vary fairly
> wildly. I'm leaning towards it being an artifact of the AWS I/O system but
> have one other possibility.
>
> Are keycaches persisted to disk and restored on a clean shutdown and
> restart ?
>
> cheers
>
> --
>
> *Franc Carter* | Systems architect | Sirca Ltd
> <marc.zianideferranti@sirca.org.au>
>
> franc.carter@sirca.org.au | www.sirca.org.au
>
> Tel: +61 2 9236 9118
>
> Level 9, 80 Clarence St, Sydney NSW 2000
>
> PO Box H58, Australia Square, Sydney NSW 1215
>
>


-- 

*Franc Carter* | Systems architect | Sirca Ltd
 <marc.zianideferranti@sirca.org.au>

franc.carter@sirca.org.au | www.sirca.org.au

Tel: +61 2 9236 9118

Level 9, 80 Clarence St, Sydney NSW 2000

PO Box H58, Australia Square, Sydney NSW 1215

Mime
View raw message