qpid-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Steve Vinoski <vino...@iona.com>
Subject Re: clustering
Date Fri, 22 Dec 2006 18:21:54 GMT

On Dec 22, 2006, at 1:16 PM, Carl Trieloff wrote:

> Tim Fox wrote:
>> Personally I would never use a total ordering protocol (e.g.  
>> totem) to implement clustering for messaging.
>>
>> Naive clustering approaches often try to replicate the queue state  
>> machine across different nodes, and require some kind of total  
>> ordering to ensure the states are consistent.
>>
>> You'll find this approach doesn't scale, since every replica in  
>> the cluster has to receive all updates from every other node.  
>> Therefore the amount of load on a particular node increases  
>> linearly with the number of nodes in the cluster.
>
> yes, exactly - thus totem is only useful for the cluster  
> management, not the data replication. That is why I asked about  
> those pieces and not data replication.

Given that people obviously have opinions on how we should implement  
clustering, it would be nice to get them captured in the wiki. Any  
takers?

--steve

Mime
View raw message