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From André Fiedler <fiedler.an...@googlemail.com>
Subject Re: Facebook messaging and choice of HBase over Cassandra - what can we learn?
Date Sun, 21 Nov 2010 17:10:52 GMT
 Facebook Messaging – HBase Comes of
Age<http://facility9.com/2010/11/18/facebook-messaging-hbase-comes-of-age>
http://facility9.com/2010/11/18/facebook-messaging-hbase-comes-of-age


2010/11/21 David Boxenhorn <david@lookin2.com>

> Eventual consistency is not good enough for instant messaging.
>
> On Sun, Nov 21, 2010 at 6:32 PM, Simon Reavely <simon.reavely@gmail.com>wrote:
>
>> (Posting this to both user + dev lists)
>>
>> I was reviewing the blog post on the facebook engineering blog from nov
>> 15th
>> http://www.facebook.com/note.php?note_id=454991608919#
>> <http://www.facebook.com/note.php?note_id=454991608919#>
>> The Underlying Technology of Messages
>> by Kannan Muthukkaruppan <http://www.facebook.com/Kannan>
>>
>>
>>
>>
>> As a cassandra user I think the key sentence for this community is:
>> "We found Cassandra's eventual consistency model to be a difficult pattern
>> to reconcile for our new Messages infrastructure."
>>
>> I think it would be useful to find out more about this statement from
>> Kannan
>> and the facebook team. Does anyone have any contacts in the Facebook team?
>>
>> My goal here is to understand usage patterns and whether or not the
>> Cassandra community can learn from this decision; maybe even understand
>> whether the Cassandra roadmap should be influenced by this decision to
>> address a target user base. Of course we might also conclude that its just
>> "not a Cassandra use-case"!
>>
>> Cheers,
>> Simon
>> --
>> Simon Reavely
>> simon.reavely@gmail.com
>>
>
>

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