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From M Vieira <mvfreelan...@gmail.com>
Subject Re: multi datacenter cluster, without fibre speeds
Date Mon, 14 Nov 2011 08:59:00 GMT
Thanks for your feedback Kolar.
Well to be honest I was thinking of using that connection in production,
not for a backup node.

My Cassandra deployment works just like an expensive file caching and
replication - I mean, all I use it for is to replicate some 5million files
of 2M each across few nodes and intensively read/write.
I used MySQL until around I had some 1.2Million entries, then sharding it
when numbers grow larger.
Not only the files themselves but I also need to attach some tags to each
file (see them as key=value) so I though of Haadop but in the end settle
for Cassandra because of better consistency, community support, no single
point of failure and some!

Thanks, Marco
On Nov 11, 2011 7:09 PM, "Radim Kolar" <hsn@sendmail.cz> wrote:

> Dne 11.11.2011 19:14, M Vieira napsal(a):
>
>> Has anyone experimented running cassandra clusters in geographicly
>> separated locations connected thru ordinary broadband?
>> By ordinary broadband I mean 30Mbps or 50Mbps
>>
> for backup purposes, like place 1 replica on remote location over WAN??
> yes. it works good enough, only anti-entropy repairs are kinda slow. Just
> make sure that applications will not read from that remote node.
>

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