Thanks for the explanations Sinthuja. @Suneth, please test this by clustering the Cassandra servers.
Thanks, NuwanD. On Wed, Sep 18, 2013 at 9:36 PM, Sinthuja Ragendran <sinth...@wso2.com>wrote: > Hi Nuwan/Chamara, > > For the load-balancing/fail-over data publishing, we need to have the > following BAM setup. > > 1) Cassandra servers should be clustered within both BAM nodes. Only then > all the data received by the BAM will go to the cassandra cluster, and > there won't be any data loss regardless of the receiver is down. > > 2) Also both analytic scripts in the BAM node should be pointing to the > one RDBMS database from which the dashboard is going to render the data. > > The BAM nodes should be configured as above, then only you can validate > the load-balancing/fail-over functionality in proper way. When you have > separate Cassandra instance/RDBMS instance, then both BAM summarization > will be independent and will consider only the data local to that > particular BAM instance. > > So please setup the BAM as above mentioned, with cassandra cluster and > single RDBMS and test the functionality. > > Thanks, > Sinthuja. > > > On Wed, Sep 18, 2013 at 8:52 AM, Sinthuja Ragendran <sinth...@wso2.com>wrote: > >> Hi chamara, >> >> whether the cassandra is clustered within these two BAM setups? Please >> confirm. >> >> Thanks, >> Sinthuja. >> >> >> On Wed, Sep 18, 2013 at 8:35 AM, Nuwan Dias <nuw...@wso2.com> wrote: >> >>> I believe this concern is regarding issue [1]. @Sinthuja, can you please >>> go through this and see whether reducing the polling interval is a valid >>> workaround for the problem. If not, what other ways does the >>> data-publishing-agent provide of immediately detecting failures? >>> >>> According to Chamara, both ESB and AS are capable to handling failovers >>> with zero data loss. >>> >>> [1] - https://wso2.org/jira/browse/APIMANAGER-1658. >>> >>> Thanks, >>> NuwanD. >>> >>> >>> On Wed, Sep 18, 2013 at 8:34 PM, Sinthuja Ragendran >>> <sinth...@wso2.com>wrote: >>> >>>> AFAIK yes. >>>> >>>> Thanks, >>>> Sinthuja. >>>> >>>> >>>> On Tue, Sep 17, 2013 at 10:19 PM, Chamara Ariyarathne < >>>> chama...@wso2.com> wrote: >>>> >>>>> Is it implemented the way ESB and AS does it? >>>>> >>>>> As Load Balancing and Failover both ways. >>>>> >>>>> -- >>>>> *Chamara Ariyarathne* >>>>> Senior Software Engineer - QA; >>>>> WSO2 Inc; http://www.wso2.com/. >>>>> Mobile; *+94772786766* >>>>> >>>> >>>> >>>> >>>> -- >>>> *Sinthuja Rajendran* >>>> Software Engineer <http://wso2.com/> >>>> WSO2, Inc.:http://wso2.com >>>> >>>> Blog: http://sinthu-rajan.blogspot.com/ >>>> Mobile: +94774273955 >>>> >>>> >>>> >>> >>> >>> -- >>> Nuwan Dias >>> >>> Senior Software Engineer - WSO2, Inc. http://wso2.com >>> email : nuw...@wso2.com >>> Phone : +94 777 775 729 >>> >> >> >> >> -- >> *Sinthuja Rajendran* >> Software Engineer <http://wso2.com/> >> WSO2, Inc.:http://wso2.com >> >> Blog: http://sinthu-rajan.blogspot.com/ >> Mobile: +94774273955 >> >> >> > > > -- > *Sinthuja Rajendran* > Software Engineer <http://wso2.com/> > WSO2, Inc.:http://wso2.com > > Blog: http://sinthu-rajan.blogspot.com/ > Mobile: +94774273955 > > > -- Nuwan Dias Senior Software Engineer - WSO2, Inc. http://wso2.com email : nuw...@wso2.com Phone : +94 777 775 729
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