[CLOUDSTACK-2418] [GSLB] NPE while removing the GSLB enabled Netscaler device

• Type: Bug
• Status: Reopened
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 4.2.0
• Fix Version/s: Future
• Component/s: Network Controller
• Security Level: Public (Anyone can view this level - this is the default.)
• Environment: commit # 09af15035b9febe6f55e73a1389f950ab042564f
• Assignee: Unassigned
• Reporter: Venkata Swamy
• Created: 09/May/13 12:15
• Updated: 29/Sep/14 20:11

Description

Steps to reproduce :

1. Have CloudStack with at least one advanced zone having at least one physical network
2. add a Netscaler to the above physical network and enable it for GSLB
3. delete the above Netscaler

Observations:

Delete happens successfully but in the logs it shows NPE

Here is the snippet from the mgmt server log

2013-05-09 13:33:45,798 DEBUG [agent.manager.AgentManagerImpl] (AgentTaskPool-10:null) Sending Disconnect to listener: com.cloud.consoleproxy.ConsoleProxyListener
2013-05-09 13:33:45,799 DEBUG [cloud.host.Status] (AgentTaskPool-10:null) Transition:[Resource state = Maintenance, Agent event = Remove, Host id = 20, name = 200-NetscalerVPXLoadBalancer-10.147.44.5]
2013-05-09 13:33:45,803 DEBUG [cloud.async.AsyncJobManagerImpl] (Job-Executor-145:job-289) Complete async job-289, jobStatus: 1, resultCode: 0, result: org.apache.cloudstack.api.response.SuccessResponse@6c6f4fe8
2013-05-09 13:33:45,805 ERROR [agent.manager.AgentManagerImpl] (AgentTaskPool-10:null) Exception caught while handling disconnect:
java.lang.NullPointerException
at com.cloud.host.dao.HostDaoImpl.updateState(HostDaoImpl.java:786)
at com.cloud.utils.component.ComponentInstantiationPostProcessor$InterceptorDispatcher.intercept(ComponentInstantiationPostProcessor.java:125)
at com.cloud.host.dao.HostDaoImpl.updateState(HostDaoImpl.java:67)
at com.cloud.utils.component.ComponentInstantiationPostProcessor$InterceptorDispatcher.intercept(ComponentInstantiationPostProcessor.java:125)
at com.cloud.utils.fsm.StateMachine2.transitTo(StateMachine2.java:111)
at com.cloud.agent.manager.AgentManagerImpl.agentStatusTransitTo(AgentManagerImpl.java:1432)
at com.cloud.agent.manager.AgentManagerImpl.disconnectAgent(AgentManagerImpl.java:1451)
at com.cloud.agent.manager.AgentManagerImpl.handleDisconnectWithoutInvestigation(AgentManagerImpl.java:882)
at com.cloud.agent.manager.ClusteredAgentManagerImpl.handleDisconnect(ClusteredAgentManagerImpl.java:291)
at com.cloud.agent.manager.ClusteredAgentManagerImpl.handleDisconnectWithoutInvestigation(ClusteredAgentManagerImpl.java:280)
at com.cloud.agent.manager.AgentManagerImpl$DisconnectTask.run(AgentManagerImpl.java:983)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1146)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:679)
2013-05-09 13:33:45,813 DEBUG [cloud.async.AsyncJobManagerImpl] (Job-Executor-145:job-289) Done executing com.cloud.api.commands.DeleteNetscalerLoadBalancerCmd for job-289
2013-05-09 13:33:48,772 DEBUG [cloud.api.ApiServlet] (1394157230@qtp-1391263288-168:null) ===START=== 10.252.241.169 – GET command=queryAsyncJobResult&jobId=ee8f7cb4-81b5-482c-a86c-7fd0fc7a494a&response=json&sessionkey=pugR8azkFvoNOD%2FvU%2B0iwMN%2FMYc%3D&_=1368101085616
2013-05-09 13:33:48,791 DEBUG [cloud.async.AsyncJobManagerImpl] (1394157230@qtp-1391263288-168:null) Async job-289 completed
2013-05-09 13:33:48,799 DEBUG [cloud.api.ApiServlet] (1394157230@qtp-1391263288-168:null) ===END=== 10.252.241.169 – GET command=queryAsyncJobResult&jobId=ee8f7cb4-81b5-482c-a86c-7fd0fc7a494a&response=json&sessionkey=pugR8azkFvoNOD%2FvU%2B0iwMN%2FMYc%3D&_=1368101085616
2013-05-09 13:33:49,520 DEBUG [agent.manager.DirectAgentAttache] (DirectAgent-104:null) Seq 5-814088194: Executing request
2013-05-09 13:33:49,530 DEBUG [agent.manager.DirectAgentAttache] (DirectAgent-104:null) Seq 5-814088194: Response Received:
2013-05-09 13:33:49,531 DEBUG [agent.transport.Request] (DirectAgent-104:null) Seq 5-814088194: Processing: { Ans: , MgmtId: 7280707764394, via: 5, Ver: v1, Flags: 10, [{"UnsupportedAnswer":{"result":false,"details":"Unsupported command issued:com.cloud.agent.api.CleanupNetworkRulesCmd. Are you sure you got the right type of server?","wait":0}}] }

Attaching all the required logs along with db dump.