It seems the gradients are negative. This would happen if there has been some values and then reduced...
I will also investigate. Thanks. On Sun, May 17, 2015 at 1:43 PM, Imesh Gunaratne <[email protected]> wrote: > It looks like RIF values are not received by the Autoscaler, need to > investigate. > > On Sun, May 17, 2015 at 12:59 PM, Imesh Gunaratne <[email protected]> > wrote: > >> Hi Lahiru, >> >> The above issue was fixed, now I'm seeing a problem in Autoscaler where >> it calculates the RIF gradients as negative values: >> >> *Scenario:* >> *Autoscaling policy:* requestsInFlight/threshold -> 50 >> *Incoming request load:* Concurrency -> 80, number of requests ->1000 >> *RIF published by load balancer:* 80 >> >> [2015-05-17 12:50:39,290] DEBUG >> {org.apache.stratos.autoscaler.monitor.cluster.ClusterMonitor} - Second >> derivative of Rif event: [cluster] single-cartridge-app.my-php.php.domain >> [network-partition] network-partition-1 [value] -0.1776534 >> [2015-05-17 12:50:39,291] DEBUG >> {org.apache.stratos.autoscaler.monitor.cluster.ClusterMonitor} >> - Gradient of Rif event: [cluster] single-cartridge-app.my-php.php.domain >> [network-partition] network-partition-1 [value] -1.7770275 >> >> May be due to this reason scaling up decision was not taken even though >> the RIF values are greater than the defined threshold. >> >> Thanks >> >> On Sun, May 17, 2015 at 12:12 PM, Imesh Gunaratne <[email protected]> >> wrote: >> >>> Hi Devs, >>> >>> While working on $subject and I found that we have not packaged the >>> thrift client configuration file in the load balancer distribution: >>> >>> [2015-05-17 12:05:07,746] FATAL - LoadBalancerServiceComponent Failed to >>> activate load balancer service component >>> java.lang.RuntimeException: Could not parse thrift client configuration >>> at >>> org.apache.stratos.common.statistics.publisher.wso2.cep.ThriftClientConfigParser.parse(ThriftClientConfigParser.java:136) >>> at >>> org.apache.stratos.common.statistics.publisher.wso2.cep.ThriftClientConfig.getInstance(ThriftClientConfig.java:45) >>> at >>> org.apache.stratos.common.statistics.publisher.wso2.cep.WSO2CEPStatisticsPublisher.<init>(WSO2CEPStatisticsPublisher.java:56) >>> >>> I'm now fixing this issue and continue the test. >>> >>> Thanks >>> >>> >>> -- >>> Imesh Gunaratne >>> >>> Senior Technical Lead, WSO2 >>> Committer & PMC Member, Apache Stratos >>> >> >> >> >> -- >> Imesh Gunaratne >> >> Senior Technical Lead, WSO2 >> Committer & PMC Member, Apache Stratos >> > > > > -- > Imesh Gunaratne > > Senior Technical Lead, WSO2 > Committer & PMC Member, Apache Stratos > -- -- Lahiru Sandaruwan Committer and PMC member, Apache Stratos, Senior Software Engineer, WSO2 Inc., http://wso2.com lean.enterprise.middleware phone: +94773325954 email: [email protected] blog: http://lahiruwrites.blogspot.com/ linked-in: http://lk.linkedin.com/pub/lahiru-sandaruwan/16/153/146
