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From "zhangcheng" <zhangch...@jike.com>
Subject Re: keycache persisted to disk ?
Date Mon, 13 Feb 2012 06:03:48 GMT

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

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

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
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