In the most cases in enterprise deployment, mostly we uses the VIP/HostName compare IP. In that case does it support HostName/VIP?
On Wed, Jul 6, 2016 at 7:46 AM, Ramindu De Silva <[email protected]> wrote: > Hi Isuru, > > Please find the explanations inline. > > In a two node HA cluster, in the eventSync/hostName configuration > (event-processor.xml), do we need to provide the own host IP? If so, how > does each nodes discover each other for event synchronization purpose? For > what exact purpose this eventSync configuration is used? > > The provided host IP will be saved in the Hazelcast map after getting the > server's state (passive [1] / active [2] ). So the other members which are > in the cluster can get the relevant configuration using the passive key and > active key. > > > If we add a presenter node in addition to the two worker nodes, I assume > we should point to the presenter node from the both worker nodes. As per > the configuration, seems this is a TCP level connection. Why do we need a > TCP connection to the presenter? > > In, HA configured serves, each and every server contains the same > artifacts, even the presenter node. But the presenter node only publishes > the output which has been already processed by the active node which is > received using the tcp connection [3]. > > FYI, the active node also sends the events to the passing node using the > tcp connection, and the events will be processed in parallel but the > passive node will drop the events from publishing or sending to the > presenter node (if available). > > 1. > https://github.com/wso2/carbon-analytics-common/blob/master/components/event-processor-manager/org.wso2.carbon.event.processor.manager.core/src/main/java/org/wso2/carbon/event/processor/manager/core/internal/HAManager.java#L259 > > > 2. > https://github.com/wso2/carbon-analytics-common/blob/master/components/event-processor-manager/org.wso2.carbon.event.processor.manager.core/src/main/java/org/wso2/carbon/event/processor/manager/core/internal/HAManager.java#L233 > > 3. > https://github.com/wso2/carbon-analytics-common/blob/master/components/event-processor-manager/org.wso2.carbon.event.processor.manager.core/src/main/java/org/wso2/carbon/event/processor/manager/core/internal/EventHandler.java#L161 > > > Best Regards, > > On Wed, Jul 6, 2016 at 4:49 PM, Isuru Haththotuwa <[email protected]> wrote: > >> += wso2-dev list >> <https://docs.wso2.com/display/CLUSTER44x/Clustering+CEP+4.0.0#ClusteringCEP4.0.0-Highavailabilitydeployment> >> >> On Wed, Jul 6, 2016 at 4:34 PM, Isuru Haththotuwa <[email protected]> >> wrote: >> >>> Hi CEP team, >>> >>> I'm going through [1] to understand the CEP HA deployment. Have a few >>> doubts to get clarified: >>> >>> >>> 1. In a two node HA cluster, in the eventSync/hostName configuration >>> (event-processor.xml), do we need to provide the own host IP? If so, how >>> does each nodes discover each other for event synchronization purpose? >>> For >>> what exact purpose this eventSync configuration is used? >>> 2. If we add a presenter node in addition to the two worker nodes, I >>> assume we should point to the presenter node from the both worker nodes. >>> As >>> per the configuration, seems this is a TCP level connection. Why do we >>> need >>> a TCP connection to the presenter? >>> >>> Missed the link: >> >> [1]. >> https://docs.wso2.com/display/CLUSTER44x/Clustering+CEP+4.0.0#ClusteringCEP4.0.0-Highavailabilitydeployment >> >>> >>> -- >>> Thanks and Regards, >>> >>> Isuru H. >>> +94 716 358 048* <http://wso2.com/>* >>> >>> >>> >> >> >> -- >> Thanks and Regards, >> >> Isuru H. >> +94 716 358 048* <http://wso2.com/>* >> >> >> >> _______________________________________________ >> Dev mailing list >> [email protected] >> http://wso2.org/cgi-bin/mailman/listinfo/dev >> >> > > > -- > *Ramindu De Silva* > Software Engineer > WSO2 Inc.: http://wso2.com > lean.enterprise.middleware > > email: [email protected] <[email protected]> > mob: +94 772339350 > mob: +94 719678895 > > _______________________________________________ > Dev mailing list > [email protected] > http://wso2.org/cgi-bin/mailman/listinfo/dev > > -- Vanjikumaran Sivajothy *Associate Technical Lead* *WSO2 Inc. http://wso2.com <http://wso2.com/>* *+1-925-464-6816* [image: Facebook] <https://www.facebook.com/vanjikumaran> [image: Twitter] <https://twitter.com/vanjikumaran> [image: LinkedIn] <http://www.linkedin.com/pub/vanjikumaran-sivajothy/25/b31/293> [image: Blogger] <http://vanjikumaran.blogspot.com/> [image: SlideShare] <http://www.slideshare.net/vanjikumaran> This communication may contain privileged or other confidential information and is intended exclusively for the addressee/s. 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