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From Jonathan Ellis <jbel...@gmail.com>
Subject Re: Cassandra on AWS across Regions
Date Wed, 01 Sep 2010 22:14:31 GMT
+1

On Wed, Sep 1, 2010 at 1:24 PM, Benjamin Black <b@b3k.us> wrote:
> The issue is this:
>
> The IP address by which an EC2 instance is known _externally_ is not
> actually on the instance itself (the address being translated), and
> the _internal_ address is not accessible across regions.  Since you
> can't bind a specific address that is not on one of your local
> interfaces, and Cassandra nodes don't have a notion of internal vs
> external you need a mechanism by which a node is told to bind one IP
> (the internal one), while it gossips another (the external one).
>
> I like what this patch does conceptually, but would prefer
> configuration options to cause it to happen (obviously a much larger
> patch).  Very cool, Peter!
>
>
> b
>
> On Wed, Sep 1, 2010 at 1:10 PM, Andres March <amarch@qualcomm.com> wrote:
>> Could you explain this point further?  Was there an exception?
>>
>> On 09/01/2010 09:26 AM, Peter Fales wrote:
>>
>> that doesn't quite work with the stock Cassandra, as it will
>> try to bind and listen on those addresses and give up because they
>> don't appear to be valid network addresses.
>>
>> --
>> Andres March
>> amarch@qualcomm.com
>> Qualcomm Internet Services
>



-- 
Jonathan Ellis
Project Chair, Apache Cassandra
co-founder of Riptano, the source for professional Cassandra support
http://riptano.com

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