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https://issues.apache.org/jira/browse/STRATOS-1109?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Anuruddha Lanka Liyanarachchi updated STRATOS-1109:
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Fix Version/s: 4.1.0 RC1
> Autoscaler rule throws a NPE when dependency scaling sample is running.
> -----------------------------------------------------------------------
>
> Key: STRATOS-1109
> URL: https://issues.apache.org/jira/browse/STRATOS-1109
> Project: Stratos
> Issue Type: Bug
> Components: Autoscaler
> Affects Versions: 4.1.0 Alpha
> Reporter: Lahiru Sandaruwan
> Assignee: Lahiru Sandaruwan
> Fix For: 4.1.0 Beta, 4.1.0 RC1
>
>
> Sample at "samples/dependency-scaling/sample-groups/mock" and the error is,
> [2015-01-23 11:14:02,305] DEBUG {org.apache.stratos.autoscaler.rule.RuleLog}
> - [min-check] [network-partition] openstack_R1 [cluster-instance] mygroup6-1
> [cluster] phpgroup6.php.domain Non terminated member count: 0
> [2015-01-23 11:14:02,306] DEBUG {org.apache.stratos.autoscaler.rule.RuleLog}
> - [min-check] [network-partition] openstack_R1 [cluster-instance]
> app_group_v2-1 [cluster] mytomcat.tomcat.domain Minimum member count: 2
> [2015-01-23 11:14:02,306] DEBUG {org.apache.stratos.autoscaler.rule.RuleLog}
> - [min-check] [network-partition] openstack_R1 [cluster-instance] mygroup6-1
> [cluster] phpgroup6.php.domain Minimum member count: 1
> [2015-01-23 11:14:02,309] ERROR
> {org.apache.stratos.autoscaler.monitor.cluster.ClusterMonitor} - Cluster
> monitor: Monitor failed.ClusterMonitor [clusterId=phpgroup6.php.domain,
> hasPrimary=false ]
> Exception executing consequence for rule "Minimum Rule" in
> org.apache.stratos.autoscaler.rule: java.lang.NullPointerException
> at
> org.drools.runtime.rule.impl.DefaultConsequenceExceptionHandler.handleException(DefaultConsequenceExceptionHandler.java:39)
> at
> org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1297)
> at org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:1221)
> at org.drools.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1456)
> at
> org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:710)
> at
> org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:674)
> at
> org.drools.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:230)
> at
> org.apache.stratos.autoscaler.rule.AutoscalerRuleEvaluator.evaluate(AutoscalerRuleEvaluator.java:68)
> at
> org.apache.stratos.autoscaler.monitor.cluster.ClusterMonitor$1.run(ClusterMonitor.java:526)
> at
> org.apache.stratos.autoscaler.monitor.cluster.ClusterMonitor.monitor(ClusterMonitor.java:581)
> at
> org.apache.stratos.autoscaler.monitor.cluster.ClusterMonitor.run(ClusterMonitor.java:432)
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
> at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:304)
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178)
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.NullPointerException
> at
> org.drools.reteoo.RuleTerminalNode$SortDeclarations.compare(RuleTerminalNode.java:444)
> at
> org.drools.reteoo.RuleTerminalNode$SortDeclarations.compare(RuleTerminalNode.java:437)
> at java.util.TimSort.countRunAndMakeAscending(TimSort.java:324)
> at java.util.TimSort.sort(TimSort.java:189)
> at java.util.TimSort.sort(TimSort.java:173)
> at java.util.Arrays.sort(Arrays.java:659)
> at
> org.drools.reteoo.RuleTerminalNode.getDeclarations(RuleTerminalNode.java:391)
> at
> org.drools.base.mvel.MVELConsequence.evaluate(MVELConsequence.java:84)
> at
> org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1287)
> ... 16 more
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