[CLOUDSTACK-8410] VMware ESXi host disconnects frequently

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.6.0
• Component/s: VMware
• Security Level: Public (Anyone can view this level - this is the default.)
• Assignee: Likitha Shetty
• Reporter: Likitha Shetty
• Created: 28/Apr/15 03:48
• Updated: 28/Apr/15 04:01
• Resolved: 28/Apr/15 04:01

Description

Even though CS is able to successfully ping a host, the host is found to be behind on ping.
Below failure is seen in the logs during every ping-

2015-04-23 00:02:07,457 WARN  [agent.manager.DirectAgentAttache] (DirectAgent-283:ctx-c17caf7a) Unable to complete the ping task
java.lang.NullPointerException
        at com.cloud.vm.VirtualMachineManagerImpl.handlePowerOffReportWithNoPendingJobsOnVM(VirtualMachineManagerImpl.java:4230)
        at com.cloud.vm.VirtualMachineManagerImpl.scanStalledVMInTransitionStateOnUpHost(VirtualMachineManagerImpl.java:4306)
        at com.cloud.vm.VirtualMachineManagerImpl.processCommands(VirtualMachineManagerImpl.java:3121)
        at com.cloud.agent.manager.AgentManagerImpl.handleCommands(AgentManagerImpl.java:292)
        at com.cloud.agent.manager.DirectAgentAttache$PingTask.runInContext(DirectAgentAttache.java:157)
        at org.apache.cloudstack.managed.context.ManagedContextRunnable$1.run(ManagedContextRunnable.java:50)
        at org.apache.cloudstack.managed.context.impl.DefaultManagedContext$1.call(DefaultManagedContext.java:56)
        at org.apache.cloudstack.managed.context.impl.DefaultManagedContext.callWithContext(DefaultManagedContext.java:103)
        at org.apache.cloudstack.managed.context.impl.DefaultManagedContext.runWithContext(DefaultManagedContext.java:53)
        at org.apache.cloudstack.managed.context.ManagedContextRunnable.run(ManagedContextRunnable.java:47)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
        at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:351)
        at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:178)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:165)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:267)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
        at java.lang.Thread.run(Thread.java:679)