Agree, EBS systems are not so good for cassandra systems and during previous conversations in this mail list, people tend to use ephemeral.
從我的 BlackBerry® 無線裝置 -----Original Message----- From: Sasha Dolgy <sdo...@gmail.com> Date: Mon, 10 Oct 2011 10:03:26 To: <user@cassandra.apache.org> Reply-To: user@cassandra.apache.org Subject: Re: ebs or ephemeral just catching the tail end of this discussion. aaron, in your previous email, you said "And an explanation of why we normally avoid ephemeral. " .... shouldn't this be, avoiding EBS? EBS was a nightmare for us in terms of performance. On Mon, Oct 10, 2011 at 9:23 AM, aaron morton <aa...@thelastpickle.com>wrote: > 6 nodes and RF3 will mean you can handle between 1 and 2 failed nodes. > > see http://thelastpickle.com/2011/06/13/Down-For-Me/ > Cheers > > ----------------- > Aaron Morton > Freelance Cassandra Developer > @aaronmorton > http://www.thelastpickle.com > > On 7/10/2011, at 9:37 PM, Madalina Matei wrote: > > Hi Aaron, > > For a 6 nodes cluster, what RF can we use in order to support 2 failed > nodes? > From the article that you sent i understood "avoid EMS" and use ephemeral. > am i missing anything? > > Thank you so much for your help, > Madaina > On Fri, Oct 7, 2011 at 9:15 AM, aaron morton <aa...@thelastpickle.com>wrote: > >> Data Stax have pre build AMI's here >> http://www.datastax.com/dev/blog/setting-up-a-cassandra-cluster-with-the-datastax-ami >> >> >> And an explanation of why we normally avoid ephemeral. >> >> Also, I would go with 6 nodes. You will then be able to handle up to 2 >> failed nodes. >> >> Hope that helps. >> >>
