Hi,

We are usning xenserver from Citrix.

I found some clue. In console to server on this host I see that nfs has error 
"Stale NFS file handle".

How to remount NFS? Maybe this is a problem?
But why other VR are started and few of them not... ;(

Best regards,
Michael



> Hi Michael,
> if it helps, I would restart the agent on the host machine where VR lives.

> it depends on hypervisor but on KVM, following command: service
> cloudstack-agent restart


> Thanks,
> Motty


> On Thu, Aug 7, 2014 at 11:52 AM, Michael Lukzak <[email protected]> wrote:

>> Hi,

>> One of our host are died (after very high load).
>> Host has a lot of Virtual Routers running.

>> We are using advanced networking.

>> Only way to bring machine alive was hard reset.

>> After this CloudStack decied to start all of VirtualRouterts,
>> when server was back online.

>> Most of VR are started, but couple don't.
>> Cloudstack want to start this VM, but can't ;(
>> Here are log from this action.

>> It's looks like that CS are looking for VR host on Xen host, but he
>> couldn't find.

>> Please help how to repair this situation.
>> Restart network with clean up options ending with the same resoult.

>> Is there any option to recreate VR?
>> I tried to remove VR from Infrastructure -> Virtual Router, but there is
>> still problem
>> with create new one.



>> Here are logs from "restart network with clean up options"
>> WARN  [network.element.VpcVirtualRouterElement]
>> (Job-Executor-151:job-6526) Network Ntwk[200|Public|1] is not associated
>> with any VPC
>> WARN  [network.element.VpcVirtualRouterElement]
>> (Job-Executor-151:job-6526) Network Ntwk[338|Guest|8] is not associated
>> with any VPC
>> WARN  [network.element.VpcVirtualRouterElement]
>> (Job-Executor-151:job-6526) Network Ntwk[202|Control|3] is not associated
>> with any VPC
>> ERROR [cloud.vm.VirtualMachineManagerImpl] (Job-Executor-151:job-6526)
>> Failed to start instance VM[DomainRouter|r-1015-VM]
>> java.lang.NullPointerException
>>         at
>> com.cloud.network.NetworkModelImpl.getIpInNetwork(NetworkModelImpl.java:763)
>>         at
>> com.cloud.network.router.VirtualNetworkApplianceManagerImpl.finalizeNetworkRulesForNetwork(VirtualNetworkApplianceManagerImpl.java:2346)
>>         at
>> com.cloud.network.router.VpcVirtualNetworkApplianceManagerImpl.finalizeNetworkRulesForNetwork(VpcVirtualNetworkApplianceManagerImpl.java:928)
>>         at
>> com.cloud.network.router.VirtualNetworkApplianceManagerImpl.finalizeCommandsOnStart(VirtualNetworkApplianceManagerImpl.java:2241)
>>         at
>> com.cloud.network.router.VpcVirtualNetworkApplianceManagerImpl.finalizeCommandsOnStart(VpcVirtualNetworkApplianceManagerImpl.java:767)
>>         at
>> com.cloud.network.router.VirtualNetworkApplianceManagerImpl.finalizeDeployment(VirtualNetworkApplianceManagerImpl.java:2205)
>>         at
>> com.cloud.vm.VirtualMachineManagerImpl.advanceStart(VirtualMachineManagerImpl.java:763)
>>         at
>> com.cloud.vm.VirtualMachineManagerImpl.start(VirtualMachineManagerImpl.java:471)
>>         at
>> com.cloud.network.router.VirtualNetworkApplianceManagerImpl.start(VirtualNetworkApplianceManagerImpl.java:2616)
>>         at
>> com.cloud.network.router.VirtualNetworkApplianceManagerImpl.startVirtualRouter(VirtualNetworkApplianceManagerImpl.java:1824)
>>         at
>> com.cloud.network.router.VirtualNetworkApplianceManagerImpl.startRouters(VirtualNetworkApplianceManagerImpl.java:1924)
>>         at
>> com.cloud.network.router.VirtualNetworkApplianceManagerImpl.deployVirtualRouterInGuestNetwork(VirtualNetworkApplianceManagerImpl.java:1902)
>>         at
>> com.cloud.network.element.VirtualRouterElement.implement(VirtualRouterElement.java:175)
>>         at
>> com.cloud.network.NetworkManagerImpl.implementNetworkElementsAndResources(NetworkManagerImpl.java:1518)
>>         at
>> com.cloud.network.NetworkManagerImpl.restartNetwork(NetworkManagerImpl.java:2473)
>>         at
>> com.cloud.network.NetworkServiceImpl.restartNetwork(NetworkServiceImpl.java:1381)
>>         at
>> com.cloud.utils.component.ComponentInstantiationPostProcessor$InterceptorDispatcher.intercept(ComponentInstantiationPostProcessor.java:125)
>>         at
>> org.apache.cloudstack.api.command.user.network.RestartNetworkCmd.execute(RestartNetworkCmd.java:92)
>>         at com.cloud.api.ApiDispatcher.dispatch(ApiDispatcher.java:162)
>>         at
>> com.cloud.async.AsyncJobManagerImpl$1.run(AsyncJobManagerImpl.java:437)
>>         at
>> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
>>         at
>> java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
>>         at java.util.concurrent.FutureTask.run(FutureTask.java:166)
>>         at
>> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>>         at
>> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>>         at java.lang.Thread.run(Thread.java:722)
>> INFO  [xen.resource.CitrixResourceBase] (DirectAgent-16:) VM does not
>> exist on XenServer0d1d5015-4061-4554-96de-406155449296
>> WARN  [cloud.network.NetworkManagerImpl] (Job-Executor-151:job-6526)
>> Failed to implement network Ntwk[338|Guest|8] elements and resources as a
>> part of network restart due to
>> com.cloud.exception.AgentUnavailableException: Resource [Host:9] is
>> unreachable: Host 9: Unable to start instance due to null
>>         at
>> com.cloud.vm.VirtualMachineManagerImpl.advanceStart(VirtualMachineManagerImpl.java:841)
>>         at
>> com.cloud.vm.VirtualMachineManagerImpl.start(VirtualMachineManagerImpl.java:471)
>>         at
>> com.cloud.network.router.VirtualNetworkApplianceManagerImpl.start(VirtualNetworkApplianceManagerImpl.java:2616)
>>         at
>> com.cloud.network.router.VirtualNetworkApplianceManagerImpl.startVirtualRouter(VirtualNetworkApplianceManagerImpl.java:1824)
>>         at
>> com.cloud.network.router.VirtualNetworkApplianceManagerImpl.startRouters(VirtualNetworkApplianceManagerImpl.java:1924)
>>         at
>> com.cloud.network.router.VirtualNetworkApplianceManagerImpl.deployVirtualRouterInGuestNetwork(VirtualNetworkApplianceManagerImpl.java:1902)
>>         at
>> com.cloud.network.element.VirtualRouterElement.implement(VirtualRouterElement.java:175)
>>         at
>> com.cloud.network.NetworkManagerImpl.implementNetworkElementsAndResources(NetworkManagerImpl.java:1518)
>>         at
>> com.cloud.network.NetworkManagerImpl.restartNetwork(NetworkManagerImpl.java:2473)
>>         at
>> com.cloud.network.NetworkServiceImpl.restartNetwork(NetworkServiceImpl.java:1381)
>>         at
>> com.cloud.utils.component.ComponentInstantiationPostProcessor$InterceptorDispatcher.intercept(ComponentInstantiationPostProcessor.java:125)
>>         at
>> org.apache.cloudstack.api.command.user.network.RestartNetworkCmd.execute(RestartNetworkCmd.java:92)
>>         at com.cloud.api.ApiDispatcher.dispatch(ApiDispatcher.java:162)
>>         at
>> com.cloud.async.AsyncJobManagerImpl$1.run(AsyncJobManagerImpl.java:437)
>>         at
>> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
>>         at
>> java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
>>         at java.util.concurrent.FutureTask.run(FutureTask.java:166)
>>         at
>> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>>         at
>> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>>         at java.lang.Thread.run(Thread.java:722)
>> Caused by: java.lang.NullPointerException
>>         at
>> com.cloud.network.NetworkModelImpl.getIpInNetwork(NetworkModelImpl.java:763)
>>         at
>> com.cloud.network.router.VirtualNetworkApplianceManagerImpl.finalizeNetworkRulesForNetwork(VirtualNetworkApplianceManagerImpl.java:2346)
>>         at
>> com.cloud.network.router.VpcVirtualNetworkApplianceManagerImpl.finalizeNetworkRulesForNetwork(VpcVirtualNetworkApplianceManagerImpl.java:928)
>>         at
>> com.cloud.network.router.VirtualNetworkApplianceManagerImpl.finalizeCommandsOnStart(VirtualNetworkApplianceManagerImpl.java:2241)
>>         at
>> com.cloud.network.router.VpcVirtualNetworkApplianceManagerImpl.finalizeCommandsOnStart(VpcVirtualNetworkApplianceManagerImpl.java:767)
>>         at
>> com.cloud.network.router.VirtualNetworkApplianceManagerImpl.finalizeDeployment(VirtualNetworkApplianceManagerImpl.java:2205)
>>         at
>> com.cloud.vm.VirtualMachineManagerImpl.advanceStart(VirtualMachineManagerImpl.java:763)
>>         ... 23 more
>> WARN  [cloud.network.NetworkServiceImpl] (Job-Executor-151:job-6526)
>> Network id=338 failed to restart.
>> WARN  [cloud.async.AsyncJobManagerImpl] (Job-Executor-151:job-6526) Unable
>> to unregister active job 6526 from JMX monitoring


>> Here are log when I want to start VR (his state is stopeed, I want to
>> start and got this)

>> WARN  [network.element.VpcVirtualRouterElement]
>> (Job-Executor-153:job-6528) Network Ntwk[200|Public|1] is not associated
>> with any VPC
>> WARN  [network.element.VpcVirtualRouterElement]
>> (Job-Executor-153:job-6528) Network Ntwk[338|Guest|8] is not associated
>> with any VPC
>> WARN  [network.element.VpcVirtualRouterElement]
>> (Job-Executor-153:job-6528) Network Ntwk[202|Control|3] is not associated
>> with any VPC
>> ERROR [cloud.vm.VirtualMachineManagerImpl] (Job-Executor-153:job-6528)
>> Failed to start instance VM[DomainRouter|r-1015-VM]
>> java.lang.NullPointerException
>>         at
>> com.cloud.network.NetworkModelImpl.getIpInNetwork(NetworkModelImpl.java:763)
>>         at
>> com.cloud.network.router.VirtualNetworkApplianceManagerImpl.finalizeNetworkRulesForNetwork(VirtualNetworkApplianceManagerImpl.java:2346)
>>         at
>> com.cloud.network.router.VpcVirtualNetworkApplianceManagerImpl.finalizeNetworkRulesForNetwork(VpcVirtualNetworkApplianceManagerImpl.java:928)
>>         at
>> com.cloud.network.router.VirtualNetworkApplianceManagerImpl.finalizeCommandsOnStart(VirtualNetworkApplianceManagerImpl.java:2241)
>>         at
>> com.cloud.network.router.VpcVirtualNetworkApplianceManagerImpl.finalizeCommandsOnStart(VpcVirtualNetworkApplianceManagerImpl.java:767)
>>         at
>> com.cloud.network.router.VirtualNetworkApplianceManagerImpl.finalizeDeployment(VirtualNetworkApplianceManagerImpl.java:2205)
>>         at
>> com.cloud.vm.VirtualMachineManagerImpl.advanceStart(VirtualMachineManagerImpl.java:763)
>>         at
>> com.cloud.vm.VirtualMachineManagerImpl.start(VirtualMachineManagerImpl.java:471)
>>         at
>> com.cloud.network.router.VirtualNetworkApplianceManagerImpl.start(VirtualNetworkApplianceManagerImpl.java:2616)
>>         at
>> com.cloud.network.router.VirtualNetworkApplianceManagerImpl.startVirtualRouter(VirtualNetworkApplianceManagerImpl.java:1824)
>>         at
>> com.cloud.network.router.VirtualNetworkApplianceManagerImpl.startRouter(VirtualNetworkApplianceManagerImpl.java:2874)
>>         at
>> com.cloud.network.router.VirtualNetworkApplianceManagerImpl.startRouter(VirtualNetworkApplianceManagerImpl.java:2824)
>>         at
>> com.cloud.utils.component.ComponentInstantiationPostProcessor$InterceptorDispatcher.intercept(ComponentInstantiationPostProcessor.java:125)
>>         at
>> org.apache.cloudstack.api.command.admin.router.StartRouterCmd.execute(StartRouterCmd.java:103)
>>         at com.cloud.api.ApiDispatcher.dispatch(ApiDispatcher.java:162)
>>         at
>> com.cloud.async.AsyncJobManagerImpl$1.run(AsyncJobManagerImpl.java:437)
>>         at
>> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
>>         at
>> java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
>>         at java.util.concurrent.FutureTask.run(FutureTask.java:166)
>>         at
>> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>>         at
>> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>>         at java.lang.Thread.run(Thread.java:722)


>> Best Regards,
>> Michael



-- 
Pozdrowienia,
 Michael Lukzak

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