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From A J <s5a...@gmail.com>
Subject Re: 2x storage
Date Fri, 25 Feb 2011 18:14:52 GMT
OK. Is it also driven by type of compaction ? Does a minor compaction
require less working space than major compaction ?

On Fri, Feb 25, 2011 at 12:40 PM, Robert Coli <rcoli@digg.com> wrote:
> On Fri, Feb 25, 2011 at 9:22 AM, A J <s5alye@gmail.com> wrote:
>> I read in some cassandra notes that each node should be allocated
>> twice the storage capacity you wish it to contain. I think the reason
>> was during compaction another copy of SSTables have to be made before
>> the original ones are discarded.
>
> This rule of thumb only exactly applies when you have a single CF. It
> is better stated as "your node needs to have enough room to
> successfully compact your largest columnfamily."
>
> =Rob
>

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