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From Edward Capriolo <edlinuxg...@gmail.com>
Subject Re: RFC: Cassandra Virtual Nodes
Date Sat, 17 Mar 2012 15:50:50 GMT
 I agree having smaller regions would help the rebalencing situation both
with rp and bop. However i an not sure if  dividing tables across disk s
will give any better performance. you will have more seeking spindles and
can possibly sub divide token ranges into separate files. But fs cache will
get shared across all disks so that is a wash.

On Saturday, March 17, 2012, Eric Evans <eevans@acunu.com> wrote:
> On Sat, Mar 17, 2012 at 11:15 AM, Radim Kolar <hsn@filez.com> wrote:
>> I don't like that every node will have same portion of data.
>>
>> 1. We are using nodes with different HW sizes (number of disks)
>> 2.  especially with ordered partitioner there tends to be hotspots and
you
>> must assign smaller portion of data to nodes holding hotspots
>
> Yes, these are exactly the sorts of problems that virtual nodes are
> meant to make easier.
>
> --
> Eric Evans
> Acunu | http://www.acunu.com | @acunu
>

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