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From "Yi Yang"...@iyyang.com>
Subject Re: ebs or ephemeral
Date Mon, 10 Oct 2011 08:06:58 GMT
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 <sdolgy@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 <aaron@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 <aaron@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.
>>
>>

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