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.car...@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
