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From "ehershey@gmail.com" <ehers...@gmail.com>
Subject Re: Efficiency of Cross Data Center Replication...?
Date Wed, 16 Nov 2011 21:48:18 GMT
On a related note - assuming there are available resources across the board
(cpu and memory on every node, low network latency, non-saturated
nics/circuits/disks), what's a reasonable expectation for timing on
replication? Sub-second? Less than five seconds?

Ernie

On Wed, Nov 16, 2011 at 4:00 PM, Brian Fleming <bigbrianfleming@gmail.com>wrote:

> Great - thanks Jake
>
> B.
>
> On Wed, Nov 16, 2011 at 8:40 PM, Jake Luciani <jakers@gmail.com> wrote:
>
>> the former
>>
>>
>> On Wed, Nov 16, 2011 at 3:33 PM, Brian Fleming <bigbrianfleming@gmail.com
>> > wrote:
>>
>>>
>>> Hi All,
>>>
>>> I have a question about inter-data centre replication : if you have 2
>>> Data Centers, each with a local RF of 2 (i.e. total RF of 4) and write to a
>>> node in DC1, how efficient is the replication to DC2 - i.e. is that data :
>>>  - replicated over to a single node in DC2 once and internally replicated
>>>  or
>>>  - replicated explicitly to two separate nodes?
>>>
>>> Obviously from a LAN resource utilisation perspective, the former would
>>> be preferable.
>>>
>>> Many thanks,
>>>
>>> Brian
>>>
>>>
>>
>>
>> --
>> http://twitter.com/tjake
>>
>
>

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