Lahiru Sandaruwan created STRATOS-1218:
------------------------------------------
Summary: 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 RC1
[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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