[Nets-seminars] Talk today 27/5/11 GS/302 16:00
Richard G. Clegg
richard at richardclegg.org
Fri May 27 11:51:18 BST 2011
I hope you can all make today's talk by Giovanni.
/Title:/ *Design and Evaluation of a High-Throughput Content-Based
Routing Protocol Using Unicast State and Probabilistic Encodings*
/Speaker:/ *Giovanni Toffetti*//*
*
/Abstract: /A content-based network is a content-based publish/subscribe
system architected as a datagram network: a message is forwarded
hop-by-hop between brokers and delivered to any and all hosts that have
expressed interest in the message content. Existing publish/subscribe
messaging systems, including such commonly used ones as Apache's
ActiveMQ and IBM's WebSphere MQ, are capable of high message throughputs
in local area settings but exhibit a degradation in performance as the
broker network grows in size. We argue that this performance degradation
is due the protocol they use to route messages and that the routing
protocol substantially dictates the end-to-end messaging performance
overshadowing the impressive capabilities of the individual brokers. We
present the design of B-DRP: a content-based routing protocol that can
demonstrably improve the situation. B-DRP is based on two main
techniques: a message delivery mechanism that utilizes and exploits
unicast forwarding state and a probabilistic data structure to
efficiently represent and evaluate receiver interests. A comparative
evaluation of a B-DRP implementation with ActiveMQ is presented on a
variety of topologies and for workloads representing realistic
content-based applications.
Cheers,
g
On 05/05/2011 19:20, Richard G. Clegg wrote:
> On 05/05/11 19:16, Giovanni Toffetti wrote:
>> Thank you Richard,
>>
>> I'd be happy to give such a presentation. I still need a little
>> planning though, and I'm trying to catch up with Univerself at the
>> moment, so I think the later I do it the better for now. I can either
>> discuss my latest work at USI (SLA protection for virtualized
>> applications) or the previous one ( high-performance content-based
>> routing). In my opinion the 2nd is probably more of interest to the
>> group.
> That's brilliant. I'll pop you down for the later slot (24th June).
> Both of those topics seem of interest to me but perhaps the second one
> is more "in tune". If you could send me an abstract and title I'll
> update the seminars webpage. Seminars last 40 minutes then 20 minutes
> of questions but we're not too strict about time. We hold them on
> Friday afternoons at 4pm and usually go to the pub after to continue
> discussions.
>
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