There is no null check there in the code, results in NPE.
On Tue, Mar 10, 2015 at 10:37 AM, Lahiru Sandaruwan <lahi...@wso2.com>
wrote:
> Hi,
>
> I could find $subject. I am testing with sample
> "$stratos_source/samples/applications/dependent-scaling/sample-groups"
>
> Looking into it.
>
> Thanks.
> [1]
>
>
> [2015-03-10 10:34:04,945] INFO
> {org.apache.stratos.autoscaler.monitor.component.GroupMonitor} - Parent
> scaling event received to [group]: my-esb-php-group, [network partition]:
> network-partition-1, [event] my-esb-php-group, [group instance]
> dependency-scaling-groups-app-1, [factor] 2.5
>
> [2015-03-10 10:34:04,946] INFO
> {org.apache.stratos.autoscaler.monitor.component.GroupMonitor} - [Group]
> my-esb-php-group is notifying the [parent] dependency-scaling-groups-app
> [instance] dependency-scaling-groups-app-1
>
> [2015-03-10 10:34:04,946] INFO
> {org.apache.stratos.autoscaler.monitor.cluster.ClusterMonitor} -
> Publishing Cluster terminating event for [application]
> dependency-scaling-groups-app [cluster]
> dependency-scaling-groups-app.my-esb.esb.domain [instance]
> my-esb-php-group-2
>
> [2015-03-10 10:34:04,951] INFO
> {org.apache.stratos.autoscaler.monitor.cluster.ClusterMonitor} -
> Publishing Cluster terminating event for [application]
> dependency-scaling-groups-app [cluster]
> dependency-scaling-groups-app.my-php.php.domain [instance]
> my-esb-php-group-2
>
> Exception in thread "pool-38-thread-8" java.lang.NullPointerException
>
> at
> org.apache.stratos.autoscaler.event.publisher.ClusterStatusEventPublisher.sendClusterTerminatingEvent(ClusterStatusEventPublisher.java:187)
>
> at
> org.apache.stratos.autoscaler.monitor.cluster.ClusterMonitor.onParentStatusEvent(ClusterMonitor.java:669)
>
> at
> org.apache.stratos.autoscaler.monitor.events.builder.MonitorStatusEventBuilder.notifyChildren(MonitorStatusEventBuilder.java:91)
>
> at
> org.apache.stratos.autoscaler.monitor.component.GroupMonitor.setStatus(GroupMonitor.java:356)
>
> at
> org.apache.stratos.autoscaler.applications.topic.ApplicationBuilder.updateGroupMonitor(ApplicationBuilder.java:705)
>
> [2015-03-10 10:34:04,953] INFO
> {org.apache.stratos.cloud.controller.messaging.topology.TopologyBuilder} -
> Cluster Terminating adding status started
> fordependency-scaling-groups-app.my-esb.esb.domain
>
> at
> org.apache.stratos.autoscaler.applications.topic.ApplicationBuilder.handleGroupTerminatingEvent(ApplicationBuilder.java:642)
>
> at
> org.apache.stratos.autoscaler.monitor.component.GroupMonitor.onParentScalingEvent(GroupMonitor.java:489)
>
> at
> org.apache.stratos.autoscaler.monitor.component.ParentComponentMonitor.handleDependentScaling(ParentComponentMonitor.java:607)
>
> at
> org.apache.stratos.autoscaler.monitor.component.ApplicationMonitor$1.run(ApplicationMonitor.java:124)
>
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>
> at java.lang.Thread.run(Thread.java:745)
>
> [2015-03-10 10:34:04,958] INFO
> {org.apache.stratos.cloud.controller.messaging.publisher.TopologyEventPublisher}
> - Publishing Cluster terminating event: [application-id]
> dependency-scaling-groups-app [cluster id]
> dependency-scaling-groups-app.my-esb.esb.domain [instance-id]
> my-esb-php-group-2
>
> [2015-03-10 10:34:04,963] INFO
> {org.apache.stratos.autoscaler.event.receiver.topology.AutoscalerTopologyEventReceiver}
> - [ClusterTerminatingEvent] Received: class
> org.apache.stratos.messaging.event.topology.ClusterInstanceTerminatingEvent
>
> [2015-03-10 10:34:04,964] WARN
> {org.apache.stratos.autoscaler.status.processor.cluster.ClusterStatusActiveProcessor}
> - No possible state change found for [type] [cluster]
> dependency-scaling-groups-app.my-esb.esb.domain [instance]
>
> [2015-03-10 10:34:04,964] INFO
> {org.apache.stratos.autoscaler.monitor.cluster.ClusterMonitor} - Starting
> to terminate all members in cluster
> [dependency-scaling-groups-app.my-esb.esb.domain] Network Partition
> [network-partition-1], Partition [partition-1]
>
> [2015-03-10 10:34:04,965] DEBUG
> {org.apache.stratos.autoscaler.rule.RuleLog} - Running obsolete instances
> rule: [partition] partition-1 [network-partition] network-partition-1
> [cluster] dependency-scaling-groups-app.my-esb.esb.domain
>
> [2015-03-10 10:34:04,965] DEBUG
> {org.apache.stratos.autoscaler.rule.RuleLog} - [obsolete-check]
> [network-partition] network-partition-1 [partition] partition-1 [cluster]
> dependency-scaling-groups-app.my-esb.esb.domain Obsolete member count: 0
>
> [2015-03-10 10:34:04,965] DEBUG
> {org.apache.stratos.autoscaler.rule.RuleLog} - Running minimum rule:
> [network-partition] network-partition-1 [cluster-instance]
> my-esb-php-group-1
>
> [2015-03-10 10:34:04,965] DEBUG
> {org.apache.stratos.autoscaler.rule.RuleLog} - Running instances cleanup
> event sender rule: [partition] partition-1 [network-partition]
> network-partition-1
>
> [2015-03-10 10:34:04,965] DEBUG
> {org.apache.stratos.autoscaler.rule.RuleLog} - [min-check]
> [network-partition] network-partition-1 [cluster-instance]
> my-esb-php-group-1 [cluster]
> dependency-scaling-groups-app.my-esb.esb.domain Non terminated member
> count: 1
>
> [2015-03-10 10:34:04,965] DEBUG
> {org.apache.stratos.autoscaler.rule.RuleLog} - [instance-cleanup-check]
> [network-partition] network-partition-1 [partition] partition-1 [cluster]
> dependency-scaling-groups-app.my-esb.esb.domain Pending termination member
> count: 0
>
> [2015-03-10 10:34:04,965] DEBUG
> {org.apache.stratos.autoscaler.rule.RuleLog} - [min-check]
> [network-partition] network-partition-1 [cluster-instance]
> my-esb-php-group-1 [cluster]
> dependency-scaling-groups-app.my-esb.esb.domain Minimum member count: 1
>
> [2015-03-10 10:34:04,966] DEBUG
> {org.apache.stratos.autoscaler.rule.RuleLog} - Running obsolete instances
> rule: [partition] partition-1 [network-partition] network-partition-1
> [cluster] dependency-scaling-groups-app.my-esb.esb.domain
>
> [2015-03-10 10:34:04,966] INFO
> {org.apache.stratos.autoscaler.monitor.cluster.ClusterMonitor} - Executing
> scaling rule as statistics have been reset
>
> [2015-03-10 10:34:04,966] DEBUG
> {org.apache.stratos.autoscaler.rule.RuleLog} - Running scale up rule:
> [network-partition] network-partition-1 [cluster]
> dependency-scaling-groups-app.my-esb.esb.domain
>
> [2015-03-10 10:34:04,966] DEBUG
> {org.apache.stratos.autoscaler.rule.RuleLog} - [obsolete-check]
> [network-partition] network-partition-1 [partition] partition-1 [cluster]
> dependency-scaling-groups-app.my-esb.esb.domain Obsolete member count: 0
>
> [2015-03-10 10:34:04,966] DEBUG
> {org.apache.stratos.autoscaler.rule.RuleLog} - [scaling]
> [network-partition] network-partition-1 [cluster]
> dependency-scaling-groups-app.my-esb.esb.domain Algorithm name:
> one-after-another
>
> [2015-03-10 10:34:04,966] DEBUG
> {org.apache.stratos.autoscaler.rule.RuleLog} - Running instances cleanup
> event sender rule: [partition] partition-1 [network-partition]
> network-partition-1
>
> [2015-03-10 10:34:04,967] DEBUG
> {org.apache.stratos.autoscaler.rule.RuleLog} - [instance-cleanup-check]
> [network-partition] network-partition-1 [partition] partition-1 [cluster]
> dependency-scaling-groups-app.my-esb.esb.domain Pending termination member
> count: 0
>
> --
> --
> Lahiru Sandaruwan
> Committer and PMC member, Apache Stratos,
> Senior Software Engineer,
> WSO2 Inc., http://wso2.com
> lean.enterprise.middleware
>
> email: lahi...@wso2.com blog: http://lahiruwrites.blogspot.com/
> linked-in: http://lk.linkedin.com/pub/lahiru-sandaruwan/16/153/146
>
>
--
Rajkumar Rajaratnam
Committer & PMC Member, Apache Stratos
Software Engineer, WSO2
Mobile : +94777568639
Blog : rajkumarr.com
