[STRATOS-605] Validation for wrong Autoscale Policy given in cartridge subscription in CLI tool

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 4.0.0
• Fix Version/s: 4.1.0
• Component/s: CLI
• Environment: EC2
• Assignee: Pradeep Fernando
• Reporter: Pubudu Chinthaka Gunatilaka
• Created: 11/Apr/14 09:35
• Updated: 16/Jul/15 14:36
• Resolved: 16/Jul/15 14:36

Description

When trying to subscribe to a cartridge through CLI, for a wrong autoscale policy, cartridge get subscribed. An instance get spawned and after sometime an exception is thrown at the back end.

Command Used:
subscribe-cartridge mysql mypub45 -dp economyDeploymentPolicy -ap simplfdeAutoscalePolicykk

Reply Message:
You have successfully subscribed to mysql cartridge with alias mypub45.
Please map the host name "mypub45.apachestratos.org" to LB IP

Exception in Back end:
TID: [0] [STRATOS] [2014-04-11 09:16:06,325] ERROR

{org.apache.stratos.autoscaler.monitor.ClusterMonitor} - Cluster monitor: Monitor failed.ClusterMonitor [clusterId=mypub45.mysql.domain, serviceId=mysql, deploymentPolicy=Deployment Policy [id]economyDeploymentPolicy [partitions] [org.apache.stratos.cloud.controller.stub.deployment.partition.Partition@103cb01a], autoscalePolicy=null, lbReferenceType=default.load.balancer] {org.apache.stratos.autoscaler.monitor.ClusterMonitor}

[Error: null pointer: autoscalePolicy.getLoadThresholds()]
[Near :

{... autoscalePolicy.getLoadThresho ....}

]
^
[Line: 1, Column: 1]
at org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer.compileGetChain(ReflectiveAccessorOptimizer.java:431)
at org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer.optimizeAccessor(ReflectiveAccessorOptimizer.java:143)
at org.mvel2.ast.ASTNode.optimize(ASTNode.java:159)
at org.mvel2.ast.ASTNode.getReducedValueAccelerated(ASTNode.java:115)
at org.mvel2.MVELRuntime.execute(MVELRuntime.java:85)
at org.mvel2.compiler.CompiledExpression.getDirectValue(CompiledExpression.java:123)
at org.mvel2.compiler.CompiledExpression.getValue(CompiledExpression.java:119)
at org.mvel2.MVEL.executeExpression(MVEL.java:942)
at org.drools.base.dataproviders.MVELDataProvider.getResults(MVELDataProvider.java:111)
at org.drools.reteoo.FromNode.modifyLeftTuple(FromNode.java:259)
at org.drools.reteoo.LeftTupleSource.doModifyLeftTuple(LeftTupleSource.java:304)
at org.drools.reteoo.LeftTupleSource.modifyLeftTuple(LeftTupleSource.java:278)
at org.drools.reteoo.SingleLeftTupleSinkAdapter.doPropagateModifyLeftTuple(SingleLeftTupleSinkAdapter.java:205)
at org.drools.reteoo.SingleLeftTupleSinkAdapter.propagateModifyObject(SingleLeftTupleSinkAdapter.java:235)
at org.drools.reteoo.LeftInputAdapterNode.modifyObject(LeftInputAdapterNode.java:170)
at org.drools.reteoo.SingleObjectSinkAdapter.propagateModifyObject(SingleObjectSinkAdapter.java:68)
at org.drools.reteoo.ObjectTypeNode.modifyObject(ObjectTypeNode.java:314)
at org.drools.reteoo.EntryPointNode.modifyObject(EntryPointNode.java:265)
at org.drools.common.NamedEntryPoint.update(NamedEntryPoint.java:483)
at org.drools.common.AbstractWorkingMemory.update(AbstractWorkingMemory.java:976)
at org.drools.common.AbstractWorkingMemory.update(AbstractWorkingMemory.java:949)
at org.drools.impl.StatefulKnowledgeSessionImpl.update(StatefulKnowledgeSessionImpl.java:284)
at org.apache.stratos.autoscaler.rule.AutoscalerRuleEvaluator.evaluateScaleCheck(AutoscalerRuleEvaluator.java:101)
at org.apache.stratos.autoscaler.monitor.ClusterMonitor.monitor(ClusterMonitor.java:121)
at org.apache.stratos.autoscaler.monitor.ClusterMonitor.run(ClusterMonitor.java:72)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.NullPointerException
at org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer.compileGetChain(ReflectiveAccessorOptimizer.java:397)
... 25 more