[
https://issues.apache.org/jira/browse/STRATOS-1218?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Lahiru Sandaruwan resolved STRATOS-1218.
----------------------------------------
Resolution: Cannot Reproduce
> Error "Failed to retrieve topology event message" occurs after running the
> dependency scaling sample sometime
> -------------------------------------------------------------------------------------------------------------
>
> Key: STRATOS-1218
> URL: https://issues.apache.org/jira/browse/STRATOS-1218
> Project: Stratos
> Issue Type: Bug
> Components: Autoscaler
> Affects Versions: 4.1.0 Alpha
> Reporter: Lahiru Sandaruwan
> Fix For: 4.1.0 Beta
>
>
> [2015-02-27 06:14:06,463] INFO
> {org.apache.stratos.autoscaler.event.receiver.topology.AutoscalerTopologyEventReceiver}
> - Cluster monitor has scaling dependents [true]
> [2015-02-27 06:14:06,473] INFO
> {org.apache.stratos.cloud.controller.services.impl.CloudControllerServiceImpl}
> - Getting deployment policy: [deployment-policy_id] deployment-policy-1
> [2015-02-27 06:14:06,477] INFO
> {org.apache.stratos.mock.iaas.api.MockIaasApi} - Starting mock instance:
> [member-id] my-tomcat.tomcat.domain77e82b9c-0b5d-432a-9b02-0f058f855c03
> [2015-02-27 06:14:06,478] INFO
> {org.apache.stratos.mock.iaas.services.impl.MockInstance} - Mock member
> started: [member-id]
> my-tomcat.tomcat.domain77e82b9c-0b5d-432a-9b02-0f058f855c03
> [2015-02-27 06:14:06,480] INFO
> {org.apache.stratos.autoscaler.monitor.component.ParentComponentMonitor} -
> Dependent monitor already created, creating instance: [application]
> dependency-scaling-cartridges-app [component] my-tomcat.tomcat.domain
> [2015-02-27 06:14:06,482] ERROR
> {org.apache.stratos.messaging.message.receiver.topology.TopologyEventMessageDelegator}
> - Failed to retrieve topology event message
> java.lang.NullPointerException
> at
> org.apache.stratos.autoscaler.context.cluster.ClusterContext.addInstanceContext(ClusterContext.java:142)
> at
> org.apache.stratos.autoscaler.event.receiver.topology.AutoscalerTopologyEventReceiver$14.onEvent(AutoscalerTopologyEventReceiver.java:474)
> at
> org.apache.stratos.messaging.listener.EventListener.update(EventListener.java:42)
> at java.util.Observable.notifyObservers(Observable.java:159)
> at
> org.apache.stratos.messaging.event.EventObservable.notifyEventListeners(EventObservable.java:51)
> at
> org.apache.stratos.messaging.message.processor.topology.ClusterInstanceCreatedMessageProcessor.doProcess(ClusterInstanceCreatedMessageProcessor.java:131)
> at
> org.apache.stratos.messaging.message.processor.topology.ClusterInstanceCreatedMessageProcessor.process(ClusterInstanceCreatedMessageProcessor.java:60)
> at
> org.apache.stratos.messaging.message.processor.topology.ClusterInstanceTerminatedProcessor.process(ClusterInstanceTerminatedProcessor.java:73)
> at
> org.apache.stratos.messaging.message.processor.topology.ClusterRemovedMessageProcessor.process(ClusterRemovedMessageProcessor.java:65)
> at
> org.apache.stratos.messaging.message.processor.topology.ClusterInstanceInactivateProcessor.process(ClusterInstanceInactivateProcessor.java:73)
> at
> org.apache.stratos.messaging.message.processor.topology.ClusterInstanceActivatedProcessor.process(ClusterInstanceActivatedProcessor.java:73)
> at
> org.apache.stratos.messaging.message.processor.topology.ClusterCreatedMessageProcessor.process(ClusterCreatedMessageProcessor.java:65)
> at
> org.apache.stratos.messaging.message.processor.topology.ApplicationClustersRemovedMessageProcessor.process(ApplicationClustersRemovedMessageProcessor.java:63)
> at
> org.apache.stratos.messaging.message.processor.topology.ApplicationClustersCreatedMessageProcessor.process(ApplicationClustersCreatedMessageProcessor.java:64)
> at
> org.apache.stratos.messaging.message.processor.topology.ServiceRemovedMessageProcessor.process(ServiceRemovedMessageProcessor.java:64)
> at
> org.apache.stratos.messaging.message.processor.topology.ServiceCreatedMessageProcessor.process(ServiceCreatedMessageProcessor.java:65)
> at
> org.apache.stratos.messaging.message.processor.topology.CompleteTopologyMessageProcessor.process(CompleteTopologyMessageProcessor.java:74)
> at
> org.apache.stratos.messaging.message.processor.MessageProcessorChain.process(MessageProcessorChain.java:60)
> at
> org.apache.stratos.messaging.message.receiver.topology.TopologyEventMessageDelegator.run(TopologyEventMessageDelegator.java:73)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:745)
> [2015-02-27 06:14:06,484] INFO
> {org.apache.stratos.autoscaler.monitor.component.ParentComponentMonitor} -
> Notifying the [child] my-php.php.domain [instance]
> dependency-scaling-cartridges-app-1 with the highest [factor] 1.5 upon
> decision of dependent scaling
> [2015-02-27 06:14:06,484] INFO
> {org.apache.stratos.autoscaler.monitor.cluster.ClusterMonitor} - Parent
> scaling event received to [cluster]: my-php.php.domain, [network partition]:
> network-partition-1, [event] my-php.php.domain, [group instance]
> dependency-scaling-cartridges-app-1, [factor] 1.5
> [2015-02-27 06:14:06,485] DEBUG {org.apache.stratos.autoscaler.rule.RuleLog}
> - Running dependent scaling rule: [network-partition] network-partition-1
> [cluster-instance] dependency-scaling-cartridges-app-1
> [2015-02-27 06:14:06,485] INFO {org.apache.stratos.autoscaler.rule.RuleLog}
> - [scale-up] Required member count based on dependecy scaling is higher than
> max, hence
> notifying to parent for possible group scaling or
> app bursting.
> [cluster] my-php.php.domain [instance
> id]dependency-scaling-cartridges-app-1 [max] 4
> [2015-02-27 06:14:06,486] DEBUG {org.apache.stratos.autoscaler.rule.RuleLog}
> - [dependent-scale] is running for [cluster] my-php.php.domain
> [cluster-instance] dependency-scaling-cartridges-app-1 max member count is: 4
> current member count is: 2
> [2015-02-27 06:14:06,486] INFO
> {org.apache.stratos.mock.iaas.statistics.generator.MockHealthStatisticsUpdater}
> - Continuing last sample value: [cartridge-type] tomcat [factor]
> LoadAverage [value] 20
> [2015-02-27 06:14:06,486] DEBUG
> {org.apache.stratos.autoscaler.algorithm.OneAfterAnother} -
> [one-after-another algorithm] [scale-up] [partition] partition-1 has space to
> create members. [non terminated count] 2 [max] 5
> [2015-02-27 06:14:06,486] INFO
> {org.apache.stratos.mock.iaas.statistics.generator.MockHealthStatisticsUpdater}
> - Continuing last sample value: [cartridge-type] tomcat [factor]
> MemoryConsumption [value] 20
> [2015-02-27 06:14:06,486] INFO
> {org.apache.stratos.autoscaler.monitor.component.ApplicationMonitor} -
> Handling application busting, since resources are exhausted in this
> application instance
> [2015-02-27 06:14:06,486] INFO
> {org.apache.stratos.mock.iaas.statistics.generator.MockHealthStatisticsGenerator}
> - Mock statistics updaters scheduled: [service-name] tomcat
> [2015-02-27 06:14:06,487] WARN
> {org.apache.stratos.autoscaler.monitor.component.ApplicationMonitor} -
> [Application] dependency-scaling-cartridges-app cannot be burst as no
> available resources found
> [2015-02-27 06:14:06,487] INFO
> {org.apache.stratos.mock.iaas.statistics.generator.MockHealthStatisticsGenerator}
> - Mock statistics updater task stopped: [service-name] tomcat [factor]
> MemoryConsumption
> [2015-02-27 06:14:06,486] INFO {org.apache.stratos.autoscaler.rule.RuleLog}
> - [dependency-scale][scale-up] Partition available, hence trying to spawn an
> instance to scale up!
> [2015-02-27 06:14:06,486] INFO
> {org.apache.stratos.mock.iaas.statistics.generator.MockHealthStatisticsGenerator}
> - Mock statistics updater task stopped: [service-name] tomcat [factor]
> LoadAverage
> [2015-02-27 06:14:06,487] DEBUG {org.apache.stratos.autoscaler.rule.RuleLog}
> - [dependency-scale][scale-up] [partition] partition-1 [cluster]
> my-php.php.domain
> [2015-02-27 06:14:06,487] INFO
> {org.apache.stratos.autoscaler.client.CloudControllerClient} - Trying to
> spawn an instance via cloud controller: [cluster] my-php.php.domain
> [partition] partition-1 [network-partition-id] network-partition-1
> [2015-02-27 06:14:06,494] INFO
> {org.apache.stratos.cloud.controller.messaging.publisher.TopologyEventPublisher}
> - Publishing cluster instance created event: [service-name] tomcat
> [cluster-id] my-tomcat.tomcat.domain in [network-partition-id] null
> [instance-id] dependency-scaling-cartridges-app-2
> [2015-02-27 06:14:06,498] INFO
> {org.apache.stratos.autoscaler.event.receiver.topology.AutoscalerTopologyEventReceiver}
> - Cluster monitor has scaling dependents [true]
> [2015-02-27 06:14:06,504] INFO
> {org.apache.stratos.cloud.controller.services.impl.CloudControllerServiceImpl}
> - Getting deployment policy: [deployment-policy_id] deployment-policy-1
> [2015-02-27 06:14:06,508] ERROR
> {org.apache.stratos.messaging.message.receiver.topology.TopologyEventMessageDelegator}
> - Failed to retrieve topology event message
> java.lang.NullPointerException
> at
> org.apache.stratos.autoscaler.context.cluster.ClusterContext.addInstanceContext(ClusterContext.java:142)
> at
> org.apache.stratos.autoscaler.event.receiver.topology.AutoscalerTopologyEventReceiver$14.onEvent(AutoscalerTopologyEventReceiver.java:474)
> at
> org.apache.stratos.messaging.listener.EventListener.update(EventListener.java:42)
> at java.util.Observable.notifyObservers(Observable.java:159)
> at
> org.apache.stratos.messaging.event.EventObservable.notifyEventListeners(EventObservable.java:51)
> at
> org.apache.stratos.messaging.message.processor.topology.ClusterInstanceCreatedMessageProcessor.doProcess(ClusterInstanceCreatedMessageProcessor.java:131)
> at
> org.apache.stratos.messaging.message.processor.topology.ClusterInstanceCreatedMessageProcessor.process(ClusterInstanceCreatedMessageProcessor.java:60)
> at
> org.apache.stratos.messaging.message.processor.topology.ClusterInstanceTerminatedProcessor.process(ClusterInstanceTerminatedProcessor.java:73)
> at
> org.apache.stratos.messaging.message.processor.topology.ClusterRemovedMessageProcessor.process(ClusterRemovedMessageProcessor.java:65)
> at
> org.apache.stratos.messaging.message.processor.topology.ClusterInstanceInactivateProcessor.process(ClusterInstanceInactivateProcessor.java:73)
> at
> org.apache.stratos.messaging.message.processor.topology.ClusterInstanceActivatedProcessor.process(ClusterInstanceActivatedProcessor.java:73)
> at
> org.apache.stratos.messaging.message.processor.topology.ClusterCreatedMessageProcessor.process(ClusterCreatedMessageProcessor.java:65)
> at
> org.apache.stratos.messaging.message.processor.topology.ApplicationClustersRemovedMessageProcessor.process(ApplicationClustersRemovedMessageProcessor.java:63)
> at
> org.apache.stratos.messaging.message.processor.topology.ApplicationClustersCreatedMessageProcessor.process(ApplicationClustersCreatedMessageProcessor.java:64)
> at
> org.apache.stratos.messaging.message.processor.topology.ServiceRemovedMessageProcessor.process(ServiceRemovedMessageProcessor.java:64)
> at
> org.apache.stratos.messaging.message.processor.topology.ServiceCreatedMessageProcessor.process(ServiceCreatedMessageProcessor.java:65)
> at
> org.apache.stratos.messaging.message.processor.topology.CompleteTopologyMessageProcessor.process(CompleteTopologyMessageProcessor.java:74)
> at
> org.apache.stratos.messaging.message.processor.MessageProcessorChain.process(MessageProcessorChain.java:60)
> at
> org.apache.stratos.messaging.message.receiver.topology.TopologyEventMessageDelegator.run(TopologyEventMessageDelegator.java:73)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:745)
> [2015-02-27 06:14:06,463] INFO
> {org.apache.stratos.autoscaler.event.receiver.topology.AutoscalerTopologyEventReceiver}
> - Cluster monitor has scaling dependents [true]
> [2015-02-27 06:14:06,473] INFO
> {org.apache.stratos.cloud.controller.services.impl.CloudControllerServiceImpl}
> - Getting deployment policy: [deployment-policy_id] deployment-policy-1
> [2015-02-27 06:14:06,477] INFO
> {org.apache.stratos.mock.iaas.api.MockIaasApi} - Starting mock instance:
> [member-id] my-tomcat.tomcat.domain77e82b9c-0b5d-432a-9b02-0f058f855c03
> [2015-02-27 06:14:06,478] INFO
> {org.apache.stratos.mock.iaas.services.impl.MockInstance} - Mock member
> started: [member-id]
> my-tomcat.tomcat.domain77e82b9c-0b5d-432a-9b02-0f058f855c03
> [2015-02-27 06:14:06,480] INFO
> {org.apache.stratos.autoscaler.monitor.component.ParentComponentMonitor} -
> Dependent monitor already created, creating instance: [application]
> dependency-scaling-cartridges-app [component] my-tomcat.tomcat.domain
> [2015-02-27 06:14:06,482] ERROR
> {org.apache.stratos.messaging.message.receiver.topology.TopologyEventMessageDelegator}
> - Failed to retrieve topology event message
> java.lang.NullPointerException
> at
> org.apache.stratos.autoscaler.context.cluster.ClusterContext.addInstanceContext(ClusterContext.java:142)
> at
> org.apache.stratos.autoscaler.event.receiver.topology.AutoscalerTopologyEventReceiver$14.onEvent(AutoscalerTopologyEventReceiver.java:474)
> at
> org.apache.stratos.messaging.listener.EventListener.update(EventListener.java:42)
> at java.util.Observable.notifyObservers(Observable.java:159)
> at
> org.apache.stratos.messaging.event.EventObservable.notifyEventListeners(EventObservable.java:51)
> at
> org.apache.stratos.messaging.message.processor.topology.ClusterInstanceCreatedMessageProcessor.doProcess(ClusterInstanceCreatedMessageProcessor.java:131)
> at
> org.apache.stratos.messaging.message.processor.topology.ClusterInstanceCreatedMessageProcessor.process(ClusterInstanceCreatedMessageProcessor.java:60)
> at
> org.apache.stratos.messaging.message.processor.topology.ClusterInstanceTerminatedProcessor.process(ClusterInstanceTerminatedProcessor.java:73)
> at
> org.apache.stratos.messaging.message.processor.topology.ClusterRemovedMessageProcessor.process(ClusterRemovedMessageProcessor.java:65)
> at
> org.apache.stratos.messaging.message.processor.topology.ClusterInstanceInactivateProcessor.process(ClusterInstanceInactivateProcessor.java:73)
> at
> org.apache.stratos.messaging.message.processor.topology.ClusterInstanceActivatedProcessor.process(ClusterInstanceActivatedProcessor.java:73)
> at
> org.apache.stratos.messaging.message.processor.topology.ClusterCreatedMessageProcessor.process(ClusterCreatedMessageProcessor.java:65)
> at
> org.apache.stratos.messaging.message.processor.topology.ApplicationClustersRemovedMessageProcessor.process(ApplicationClustersRemovedMessageProcessor.java:63)
> at
> org.apache.stratos.messaging.message.processor.topology.ApplicationClustersCreatedMessageProcessor.process(ApplicationClustersCreatedMessageProcessor.java:64)
> at
> org.apache.stratos.messaging.message.processor.topology.ServiceRemovedMessageProcessor.process(ServiceRemovedMessageProcessor.java:64)
> at
> org.apache.stratos.messaging.message.processor.topology.ServiceCreatedMessageProcessor.process(ServiceCreatedMessageProcessor.java:65)
> at
> org.apache.stratos.messaging.message.processor.topology.CompleteTopologyMessageProcessor.process(CompleteTopologyMessageProcessor.java:74)
> at
> org.apache.stratos.messaging.message.processor.MessageProcessorChain.process(MessageProcessorChain.java:60)
> at
> org.apache.stratos.messaging.message.receiver.topology.TopologyEventMessageDelegator.run(TopologyEventMessageDelegator.java:73)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:745)
> [2015-02-27 06:14:06,484] INFO
> {org.apache.stratos.autoscaler.monitor.component.ParentComponentMonitor} -
> Notifying the [child] my-php.php.domain [instance]
> dependency-scaling-cartridges-app-1 with the highest [factor] 1.5 upon
> decision of dependent scaling
> [2015-02-27 06:14:06,484] INFO
> {org.apache.stratos.autoscaler.monitor.cluster.ClusterMonitor} - Parent
> scaling event received to [cluster]: my-php.php.domain, [network partition]:
> network-partition-1, [event] my-php.php.domain, [group instance]
> dependency-scaling-cartridges-app-1, [factor] 1.5
> [2015-02-27 06:14:06,485] DEBUG {org.apache.stratos.autoscaler.rule.RuleLog}
> - Running dependent scaling rule: [network-partition] network-partition-1
> [cluster-instance] dependency-scaling-cartridges-app-1
> [2015-02-27 06:14:06,485] INFO {org.apache.stratos.autoscaler.rule.RuleLog}
> - [scale-up] Required member count based on dependecy scaling is higher than
> max, hence
> notifying to parent for possible group scaling or
> app bursting.
> [cluster] my-php.php.domain [instance
> id]dependency-scaling-cartridges-app-1 [max] 4
> [2015-02-27 06:14:06,486] DEBUG {org.apache.stratos.autoscaler.rule.RuleLog}
> - [dependent-scale] is running for [cluster] my-php.php.domain
> [cluster-instance] dependency-scaling-cartridges-app-1 max member count is: 4
> current member count is: 2
> [2015-02-27 06:14:06,486] INFO
> {org.apache.stratos.mock.iaas.statistics.generator.MockHealthStatisticsUpdater}
> - Continuing last sample value: [cartridge-type] tomcat [factor]
> LoadAverage [value] 20
> [2015-02-27 06:14:06,486] DEBUG
> {org.apache.stratos.autoscaler.algorithm.OneAfterAnother} -
> [one-after-another algorithm] [scale-up] [partition] partition-1 has space to
> create members. [non terminated count] 2 [max] 5
> [2015-02-27 06:14:06,486] INFO
> {org.apache.stratos.mock.iaas.statistics.generator.MockHealthStatisticsUpdater}
> - Continuing last sample value: [cartridge-type] tomcat [factor]
> MemoryConsumption [value] 20
> [2015-02-27 06:14:06,486] INFO
> {org.apache.stratos.autoscaler.monitor.component.ApplicationMonitor} -
> Handling application busting, since resources are exhausted in this
> application instance
> [2015-02-27 06:14:06,486] INFO
> {org.apache.stratos.mock.iaas.statistics.generator.MockHealthStatisticsGenerator}
> - Mock statistics updaters scheduled: [service-name] tomcat
> [2015-02-27 06:14:06,487] WARN
> {org.apache.stratos.autoscaler.monitor.component.ApplicationMonitor} -
> [Application] dependency-scaling-cartridges-app cannot be burst as no
> available resources found
> [2015-02-27 06:14:06,487] INFO
> {org.apache.stratos.mock.iaas.statistics.generator.MockHealthStatisticsGenerator}
> - Mock statistics updater task stopped: [service-name] tomcat [factor]
> MemoryConsumption
> [2015-02-27 06:14:06,486] INFO {org.apache.stratos.autoscaler.rule.RuleLog}
> - [dependency-scale][scale-up] Partition available, hence trying to spawn an
> instance to scale up!
> [2015-02-27 06:14:06,486] INFO
> {org.apache.stratos.mock.iaas.statistics.generator.MockHealthStatisticsGenerator}
> - Mock statistics updater task stopped: [service-name] tomcat [factor]
> LoadAverage
> [2015-02-27 06:14:06,487] DEBUG {org.apache.stratos.autoscaler.rule.RuleLog}
> - [dependency-scale][scale-up] [partition] partition-1 [cluster]
> my-php.php.domain
> [2015-02-27 06:14:06,487] INFO
> {org.apache.stratos.autoscaler.client.CloudControllerClient} - Trying to
> spawn an instance via cloud controller: [cluster] my-php.php.domain
> [partition] partition-1 [network-partition-id] network-partition-1
> [2015-02-27 06:14:06,494] INFO
> {org.apache.stratos.cloud.controller.messaging.publisher.TopologyEventPublisher}
> - Publishing cluster instance created event: [service-name] tomcat
> [cluster-id] my-tomcat.tomcat.domain in [network-partition-id] null
> [instance-id] dependency-scaling-cartridges-app-2
> [2015-02-27 06:14:06,498] INFO
> {org.apache.stratos.autoscaler.event.receiver.topology.AutoscalerTopologyEventReceiver}
> - Cluster monitor has scaling dependents [true]
> [2015-02-27 06:14:06,504] INFO
> {org.apache.stratos.cloud.controller.services.impl.CloudControllerServiceImpl}
> - Getting deployment policy: [deployment-policy_id] deployment-policy-1
> [2015-02-27 06:14:06,508] ERROR
> {org.apache.stratos.messaging.message.receiver.topology.TopologyEventMessageDelegator}
> - Failed to retrieve topology event message
> java.lang.NullPointerException
> at
> org.apache.stratos.autoscaler.context.cluster.ClusterContext.addInstanceContext(ClusterContext.java:142)
> at
> org.apache.stratos.autoscaler.event.receiver.topology.AutoscalerTopologyEventReceiver$14.onEvent(AutoscalerTopologyEventReceiver.java:474)
> at
> org.apache.stratos.messaging.listener.EventListener.update(EventListener.java:42)
> at java.util.Observable.notifyObservers(Observable.java:159)
> at
> org.apache.stratos.messaging.event.EventObservable.notifyEventListeners(EventObservable.java:51)
> at
> org.apache.stratos.messaging.message.processor.topology.ClusterInstanceCreatedMessageProcessor.doProcess(ClusterInstanceCreatedMessageProcessor.java:131)
> at
> org.apache.stratos.messaging.message.processor.topology.ClusterInstanceCreatedMessageProcessor.process(ClusterInstanceCreatedMessageProcessor.java:60)
> at
> org.apache.stratos.messaging.message.processor.topology.ClusterInstanceTerminatedProcessor.process(ClusterInstanceTerminatedProcessor.java:73)
> at
> org.apache.stratos.messaging.message.processor.topology.ClusterRemovedMessageProcessor.process(ClusterRemovedMessageProcessor.java:65)
> at
> org.apache.stratos.messaging.message.processor.topology.ClusterInstanceInactivateProcessor.process(ClusterInstanceInactivateProcessor.java:73)
> at
> org.apache.stratos.messaging.message.processor.topology.ClusterInstanceActivatedProcessor.process(ClusterInstanceActivatedProcessor.java:73)
> at
> org.apache.stratos.messaging.message.processor.topology.ClusterCreatedMessageProcessor.process(ClusterCreatedMessageProcessor.java:65)
> at
> org.apache.stratos.messaging.message.processor.topology.ApplicationClustersRemovedMessageProcessor.process(ApplicationClustersRemovedMessageProcessor.java:63)
> at
> org.apache.stratos.messaging.message.processor.topology.ApplicationClustersCreatedMessageProcessor.process(ApplicationClustersCreatedMessageProcessor.java:64)
> at
> org.apache.stratos.messaging.message.processor.topology.ServiceRemovedMessageProcessor.process(ServiceRemovedMessageProcessor.java:64)
> at
> org.apache.stratos.messaging.message.processor.topology.ServiceCreatedMessageProcessor.process(ServiceCreatedMessageProcessor.java:65)
> at
> org.apache.stratos.messaging.message.processor.topology.CompleteTopologyMessageProcessor.process(CompleteTopologyMessageProcessor.java:74)
> at
> org.apache.stratos.messaging.message.processor.MessageProcessorChain.process(MessageProcessorChain.java:60)
> at
> org.apache.stratos.messaging.message.receiver.topology.TopologyEventMessageDelegator.run(TopologyEventMessageDelegator.java:73)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:745)
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