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From "Anshul Gangwar (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CLOUDSTACK-7932) [Hyper-V] Wrong semantics for isVmAlive() method in HypervInvestigator
Date Tue, 18 Nov 2014 05:06:33 GMT
Anshul Gangwar created CLOUDSTACK-7932:
------------------------------------------

             Summary: [Hyper-V] Wrong semantics for isVmAlive() method in HypervInvestigator
                 Key: CLOUDSTACK-7932
                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-7932
             Project: CloudStack
          Issue Type: Bug
      Security Level: Public (Anyone can view this level - this is the default.)
            Reporter: Anshul Gangwar
            Assignee: Anshul Gangwar




The isVmAlive() method should return null when it is unable to conclusively determine if the
VM is alive or not.

I ran some tests using Simulator and found that HypervInvestigator determined that VM is not
alive. How can HypervInvestigator determine status of a VM running on Simulator or any other
HV?

2014-11-15 13:35:21,692 INFO [c.c.h.HighAvailabilityManagerImpl] (HA-Worker-1:ctx-e0b5183c
work-1) HypervInvestigator found VM[SecondaryStorageVm|s-1-VM]to be alive? false

Full logs for the HA worker thread

2014-11-15 13:35:21,642 INFO [c.c.h.HighAvailabilityManagerImpl] (HA-Worker-1:ctx-e0b5183c
work-1) Processing HAWork[1-HA-1-Running-Investigating]
2014-11-15 13:35:21,648 INFO [c.c.h.HighAvailabilityManagerImpl] (HA-Worker-1:ctx-e0b5183c
work-1) HA on VM[SecondaryStorageVm|s-1-VM]
2014-11-15 13:35:21,658 DEBUG [c.c.h.CheckOnAgentInvestigator] (HA-Worker-1:ctx-e0b5183c work-1)
Unable to reach the agent for VM[SecondaryStorageVm|s-1-VM]: Resource [Host:1] is unreachable:
Host 1: Host with specified id is not in the right state: Down
2014-11-15 13:35:21,659 INFO [c.c.h.HighAvailabilityManagerImpl] (HA-Worker-1:ctx-e0b5183c
work-1) SimpleInvestigator found VM[SecondaryStorageVm|s-1-VM]to be alive? null
2014-11-15 13:35:21,659 INFO [c.c.h.HighAvailabilityManagerImpl] (HA-Worker-1:ctx-e0b5183c
work-1) XenServerInvestigator found VM[SecondaryStorageVm|s-1-VM]to be alive? null
2014-11-15 13:35:21,659 DEBUG [c.c.h.UserVmDomRInvestigator] (HA-Worker-1:ctx-e0b5183c work-1)
Not a User Vm, unable to determine state of VM[SecondaryStorageVm|s-1-VM] returning null
2014-11-15 13:35:21,659 INFO [c.c.h.HighAvailabilityManagerImpl] (HA-Worker-1:ctx-e0b5183c
work-1) PingInvestigator found VM[SecondaryStorageVm|s-1-VM]to be alive? null
2014-11-15 13:35:21,659 DEBUG [c.c.h.ManagementIPSystemVMInvestigator] (HA-Worker-1:ctx-e0b5183c
work-1) Testing if VM[SecondaryStorageVm|s-1-VM] is alive
2014-11-15 13:35:21,670 DEBUG [c.c.a.t.Request] (HA-Worker-1:ctx-e0b5183c work-1) Seq 2-5786281096240955453:
Sending { Cmd , MgmtId: 1, via: 2(SimulatedAgent.08984ca6-967c-49b0-84c1-968076cd6992), Ver:
v1, Flags: 100011, [{"com.cloud.agent.api.PingTestCommand":{"_computingHostIp":"172.16.15.74","wait":20}}]
}
2014-11-15 13:35:21,670 DEBUG [c.c.a.t.Request] (HA-Worker-1:ctx-e0b5183c work-1) Seq 2-5786281096240955453:
Executing: { Cmd , MgmtId: 1, via: 2(SimulatedAgent.08984ca6-967c-49b0-84c1-968076cd6992),
Ver: v1, Flags: 100011, [{"com.cloud.agent.api.PingTestCommand":{"_computingHostIp":"172.16.15.74","wait":20}}]
}
2014-11-15 13:35:21,675 DEBUG [c.c.a.t.Request] (HA-Worker-1:ctx-e0b5183c work-1) Seq 2-5786281096240955453:
Received: { Ans: , MgmtId: 1, via: 2, Ver: v1, Flags: 10,
{ Answer } }
2014-11-15 13:35:21,675 DEBUG [c.c.h.AbstractInvestigatorImpl] (HA-Worker-1:ctx-e0b5183c work-1)
host (172.16.15.74) cannot be pinged, returning null ('I don't know')
2014-11-15 13:35:21,678 DEBUG [c.c.a.t.Request] (HA-Worker-1:ctx-e0b5183c work-1) Seq 3-248260929458798725:
Sending { Cmd , MgmtId: 1, via: 3(SimulatedAgent.9bcff565-4ae7-492a-8e39-30d11f1cbbd7), Ver:
v1, Flags: 100011, [{"com.cloud.agent.api.PingTestCommand":{"_computingHostIp":"172.16.15.74","wait":20}}]
}
2014-11-15 13:35:21,679 DEBUG [c.c.a.t.Request] (HA-Worker-1:ctx-e0b5183c work-1) Seq 3-248260929458798725:
Executing: { Cmd , MgmtId: 1, via: 3(SimulatedAgent.9bcff565-4ae7-492a-8e39-30d11f1cbbd7),
Ver: v1, Flags: 100011, [{"com.cloud.agent.api.PingTestCommand":{"_computingHostIp":"172.16.15.74","wait":20}}]
}
2014-11-15 13:35:21,691 DEBUG [c.c.a.t.Request] (HA-Worker-1:ctx-e0b5183c work-1) Seq 3-248260929458798725:
Received: { Ans: , MgmtId: 1, via: 3, Ver: v1, Flags: 10, { Answer }

}
2014-11-15 13:35:21,691 DEBUG [c.c.h.AbstractInvestigatorImpl] (HA-Worker-1:ctx-e0b5183c work-1)
host (172.16.15.74) cannot be pinged, returning null ('I don't know')
2014-11-15 13:35:21,691 DEBUG [c.c.h.ManagementIPSystemVMInvestigator] (HA-Worker-1:ctx-e0b5183c
work-1) unable to determine state of VM[SecondaryStorageVm|s-1-VM] returning null
2014-11-15 13:35:21,691 INFO [c.c.h.HighAvailabilityManagerImpl] (HA-Worker-1:ctx-e0b5183c
work-1) ManagementIPSysVMInvestigator found VM[SecondaryStorageVm|s-1-VM]to be alive? null
2014-11-15 13:35:21,692 INFO [c.c.h.HighAvailabilityManagerImpl] (HA-Worker-1:ctx-e0b5183c
work-1) KVMInvestigator found VM[SecondaryStorageVm|s-1-VM]to be alive? null
2014-11-15 13:35:21,692 INFO [c.c.h.HighAvailabilityManagerImpl] (HA-Worker-1:ctx-e0b5183c
work-1) HypervInvestigator found VM[SecondaryStorageVm|s-1-VM]to be alive? false
2014-11-15 13:35:21,692 WARN [o.a.c.f.j.AsyncJobExecutionContext] (HA-Worker-1:ctx-e0b5183c
work-1) Job is executed without a context, setup psudo job for the executing thread
2014-11-15 13:35:21,725 DEBUG [o.a.c.f.j.i.AsyncJobManagerImpl] (HA-Worker-1:ctx-e0b5183c
work-1) Sync job-116 execution on object VmWorkJobQueue.1
2014-11-15 13:35:22,212 DEBUG [c.c.h.HighAvailabilityManagerImpl] (HA-Worker-1:ctx-e0b5183c
work-1) VM is not HA enabled so we're done.
2014-11-15 13:35:22,212 INFO [c.c.h.HighAvailabilityManagerImpl] (HA-Worker-1:ctx-e0b5183c
work-1) Completed HAWork[1-HA-1-Running-Scheduled]




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