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From Sylvain Lebresne <sylv...@datastax.com>
Subject Re: Efficiency of Cross Data Center Replication...?
Date Wed, 16 Nov 2011 20:52:47 GMT
To be complete, https://issues.apache.org/jira/browse/CASSANDRA-3472
is relevant.

--
Sylvain

On Wed, Nov 16, 2011 at 9:40 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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