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WIHIDUMEvaluating performance on two topologies for a broker hierarchy of distributed publish subscribe middlewareDone by DilshanAmadoru, HasiniGunasinghe, ChaminiHasanga and PrabathAbeysekaraUnder the supervision of Mrs. VishakaNanayakkara and Dr. SrinathPerera
Publish Subscribe ParadigmSend them all here. I only need sports infoI’m publishing valuable information about sports and politics.Great. Please send them  all to me.I’m not interestedSend about politics here.Wihidum – CS & ES Conference – 09 Sep 2010
Effect of a single broker Messaging broker stores subscriptions and delivers the matching publications.
 Number of communication channels are reduced.
 Many communication channels when there are multiple publishers and subscribers.Wihidum – CS & ES Conference – 09 Sep 2010
Distributed broker hierarchy Distributed middleware with a broker hierarchy provides a scalable architecture.
 Our focus is to design, implement and evaluate two  topology algorithms.Single messaging broker is not scalable!Wihidum – CS & ES Conference – 09 Sep 2010
Tree TopologyB1S2B2B3S1B4B5B6P1Wihidum – CS & ES Conference – 09 Sep 2010
Cluster TopologySSCCSSCC19SCCSCC95SCC157CCCCCC9C313CCCCC4SC368C510C2C124SC2SC1SSC2SSC1S2P1S1C1,C2,C4,C5-ClustersSC-Super ClusterSSC-Super Super ClusterCC-Cluster-ControllerSCC-Super Cluster ControllerSSCC-Super Super Cluster ControllerWihidum – CS & ES Conference – 09 Sep 2010
Performance TestingBroker HierarchyCC   PublishersSCCB   Listeners  SubscribersWihidum – CS & ES Conference – 09 Sep 2010
Throughput ResultsSubscription ThroughputPublication ThroughputWihidum – CS & ES Conference – 09 Sep 2010
Different characteristics of two topologiesTree TopologyCluster TopologyBBBBBBBBBBBB Scalable and small number of communication channels

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