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From Florin Dumitrascu <florin.dumitra...@intunenetworks.com>
Subject [CS 4.3 | XenServer] Unable to start Virtual Router (com.cloud.exception.AgentUnavailableException)
Date Tue, 10 Jun 2014 13:23:06 GMT
Hi,

Could anyone please help with the following issue I am seeing?
I am running CloudStack 4.3 and XenServer 6.2 (SP1)

I have removed a host which was working normally and re-added it (it is Host 15 in the log
appended).
The communication with the host seems to be established as shown in the GUI (State is "Up").
However, every attempt to start a Virtual Router on that host is failing. The reasons that
seem to be related to the issue are (as seen in the appended log):

"Unable to get the template/scripts version of router r-187-VM due to: getDomRVersionCmd failed"
"com.cloud.exception.AgentUnavailableException: Resource [Host:15] is unreachable"

How can I further debug this ? How can I check the state of the agent running on XenServer
?

Thank you for your help,
Florin

Debug Log
---------------

2014-06-10 14:14:10,549 DEBUG [c.c.a.m.DirectAgentAttache] (DirectAgent-292:ctx-fb46119b)
Seq 15-1518796837: Response Received:
2014-06-10 14:14:10,551 DEBUG [c.c.a.t.Request] (DirectAgent-292:ctx-fb46119b) Seq 15-1518796837:
Processing:  { Ans: , MgmtId: 123561959226, via: 15, Ver: v1, Flags: 10, [{"com.cloud.agent.api.StartAnswer":{
"vm":{"id":187,"name":"r-187-VM","bootloader":"PyGrub","type":"DomainRouter","cpus":1,"minSpeed":500,"maxSpeed":500,"minRam":134217728,"maxRam":134217728,"arch":"x86_64","os":"Debian
GNU/Linux 7(32-bit)","boo
tArgs":" template=domP name=r-187-VM eth2ip=192.168.18.22 eth2mask=255.255.252.0 gateway=192.168.16.1
eth0ip=10.10.2.1 eth0mask=255.255.255.0 domain=cs2cloud.internal dhcprange=10.10.2.1 eth1ip=169.254.2.254
eth1mask=255.255.0.0 type=router disable_rp_filter=true dns1=192.168.20.18 dns2=192.168.20.81","rebootOnCrash":false,"enableHA":true,"limitCpuUse":false,"enableDynamicallyScaleVm":false,"vncPassword":"128a547
57b1466cc","params":{},"uuid":"035c06a8-8b08-46e7-88ef-ac128b1e2aeb","disks":[{"data":{"org.apache.cloudstack.storage.to.VolumeObjectTO":{"uuid":"9c8b32ff-8864-4681-acb3-3a76b0c04d91","volumeType":"ROOT","dat
aStore":{"org.apache.cloudstack.storage.to.PrimaryDataStoreTO":{"uuid":"d9242b8f-5342-3225-bda3-8b79202af571","id":19,"poolType":"IscsiLUN","host":"10.20.1.12","path":"/iqn.2014-03.local.intune:cloudstorsrv3.
target1/1","port":3260,"url":"IscsiLUN://10.20.1.12//iqn.2014-03.local.intune:cloudstorsrv3.target1/1/?ROLE=Primary&STOREUUID=d9242b8f-5342-3225-bda3-8b79202af571"}},"name":"ROOT-187","size":2621440000,"path"
:"05b0fb51-f725-46e5-8af0-43884bfd6edf","volumeId":228,"vmName":"r-187-VM","accountId":2,"format":"VHD","id":228,"deviceId":0,"hypervisorType":"XenServer"}},"diskSeq":0,"path":"05b0fb51-f725-46e5-8af0-43884bf
d6edf","type":"ROOT","_details":{"managed":"false","storagePort":"3260","storageHost":"10.20.1.12","volumeSize":"2621440000"}}],"nics":[{"deviceId":2,"networkRateMbps":200,"defaultNic":true,"uuid":"52d1b19d-b
053-4358-9659-6462f4d320ba","ip":"192.168.18.22","netmask":"255.255.252.0","gateway":"192.168.16.1","mac":"06:2c:bc:00:00:22","dns1":"192.168.20.18","dns2":"192.168.20.81","broadcastType":"Vlan","type":"Publi
c","broadcastUri":"vlan://untagged","isolationUri":"vlan://untagged","isSecurityGroupEnabled":false,"name":"PUBLIC"},{"deviceId":0,"networkRateMbps":200,"defaultNic":false,"uuid":"ea1180aa-9889-4db5-8414-6d0b
b9653f65","ip":"10.10.2.1","netmask":"255.255.255.0","mac":"02:00:4a:0a:00:02","dns1":"192.168.20.18","dns2":"192.168.20.81","broadcastType":"Vswitch","type":"Guest","broadcastUri":"vs://385","isolationUri":"
vs://385","isSecurityGroupEnabled":false,"name":"GUEST"},{"deviceId":1,"networkRateMbps":-1,"defaultNic":false,"uuid":"c17a414d-e0d1-4ff8-80a3-6db65c5af96e","ip":"169.254.2.254","netmask":"255.255.0.0","gatew
ay":"169.254.0.1","mac":"0e:00:a9:fe:02:fe","broadcastType":"LinkLocal","type":"Control","isSecurityGroupEnabled":false}]},"_iqnToPath":{},"result":true,"wait":0}},{"com.cloud.agent.api.check.CheckSshAnswer":
{"result":true,"wait":0}},{"com.cloud.agent.api.GetDomRVersionAnswer":{"result":false,"details":"getDomRVersionCmd
failed","wait":0}}] }
2014-06-10 14:14:10,551 DEBUG [c.c.a.t.Request] (Job-Executor-17:ctx-7e9e98c6 ctx-8fd8ddc7)
Seq 15-1518796837: Received:  { Ans: , MgmtId: 123561959226, via: 15, Ver: v1, Flags: 10,
{ StartAnswer, CheckSshAns
wer, GetDomRVersionAnswer } }
2014-06-10 14:14:10,602 WARN  [c.c.n.r.VirtualNetworkApplianceManagerImpl] (Job-Executor-17:ctx-7e9e98c6
ctx-8fd8ddc7) Unable to get the template/scripts version of router r-187-VM due to: getDomRVersionCmd
f
ailed
2014-06-10 14:14:10,602 INFO  [c.c.v.VirtualMachineManagerImpl] (Job-Executor-17:ctx-7e9e98c6
ctx-8fd8ddc7) The guru did not like the answers so stopping VM[DomainRouter|r-187-VM]
2014-06-10 14:14:10,605 DEBUG [c.c.a.t.Request] (Job-Executor-17:ctx-7e9e98c6 ctx-8fd8ddc7)
Seq 15-1518796840: Sending  { Cmd , MgmtId: 123561959226, via: 15(xenserver2), Ver: v1, Flags:
100011, [{"com.cloud.
agent.api.StopCommand":{"isProxy":false,"executeInSequence":false,"vmName":"r-187-VM","wait":0}}]
}
2014-06-10 14:14:10,605 DEBUG [c.c.a.t.Request] (Job-Executor-17:ctx-7e9e98c6 ctx-8fd8ddc7)
Seq 15-1518796840: Executing:  { Cmd , MgmtId: 123561959226, via: 15(xenserver2), Ver: v1,
Flags: 100011, [{"com.clo
ud.agent.api.StopCommand":{"isProxy":false,"executeInSequence":false,"vmName":"r-187-VM","wait":0}}]
}
2014-06-10 14:14:10,606 DEBUG [c.c.a.m.DirectAgentAttache] (DirectAgent-494:ctx-2c6d4aa5)
Seq 15-1518796840: Executing request
2014-06-10 14:14:10,694 DEBUG [c.c.h.x.r.CitrixResourceBase] (DirectAgent-494:ctx-2c6d4aa5)
9. The VM r-187-VM is in Stopping state

2014-06-10 14:14:20,772 DEBUG [c.c.a.t.Request] (Job-Executor-17:ctx-7e9e98c6 ctx-8fd8ddc7)
Seq 15-1518796840: Received:  { Ans: , MgmtId: 123561959226, via: 15, Ver: v1, Flags: 10,
{ StopAnswer } }
2014-06-10 14:14:20,772 DEBUG [c.c.a.m.AgentManagerImpl] (Job-Executor-17:ctx-7e9e98c6 ctx-8fd8ddc7)
Details from executing class com.cloud.agent.api.StopCommand: Stop VM r-187-VM Succeed
2014-06-10 14:14:20,772 ERROR [c.c.v.VirtualMachineManagerImpl] (Job-Executor-17:ctx-7e9e98c6
ctx-8fd8ddc7) Failed to start instance VM[DomainRouter|r-187-VM]
com.cloud.utils.exception.ExecutionException: Unable to start VM[DomainRouter|r-187-VM] due
to error in finalizeStart, not retrying

2014-06-10 14:14:22,490 INFO  [c.c.v.VirtualMachineManagerImpl] (Job-Executor-17:ctx-7e9e98c6
ctx-8fd8ddc7) Unable to contact resource.
com.cloud.exception.AgentUnavailableException: Resource [Host:15] is unreachable: Host 15:
Unable to start instance due to Unable to start VM[DomainRouter|r-187-VM] due to error in
finalizeStart, not retrying
        at com.cloud.vm.VirtualMachineManagerImpl.orchestrateStart(VirtualMachineManagerImpl.java:1072)
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