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Date: Tue, 24 Mar 2015 16:55:32 +0100
From: Daniel Kollmer <Daniel.Kollmer@tomtom.com>
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To: <users@cloudstack.apache.org>
Subject: System VMs can not be created anymore
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Hello

Today I wanted to try and build a new zone (on cloudstack 4.5/KVM)
with VXLAN but upon launching it appears to be unable to start the
systemVMs

I constantly got errors of this kind:

Exception while trying to start secondary storage vm
com.cloud.exception.AgentUnavailableException: Resource [Host:1] is
unreachable: Host 1: Unable to start instance due to Unable to acquire
lock on VMTemplateStoragePool:

I have verified that I can mount the secondary storage from the
hypervisor, it works.

I tried reverting the zone back to a setup which does not use VXLAN
but the result was the same. If I check on the hypervisor itself I see
messages like this repeating over and over again:


2015-03-24 17:46:28,373{GMT} INFO  [kvm.storage.LibvirtStorageAdaptor]
(agentRequest-Handler-4:) Attempting to remove storage pool
5a7d9fa7-3f8a-3e91-802e-bee6c7a2654c from libvirt
^@2015-03-24 17:46:55,195{GMT} INFO
[kvm.storage.LibvirtStorageAdaptor] (agentRequest-Handler-3:)
Attempting to create storage pool 5a7d9fa7-3f8a-3e91-802e-bee6c7a2654c
(NetworkFilesystem) in libvirt
2015-03-24 17:46:55,292{GMT} INFO  [kvm.storage.LibvirtStorageAdaptor]
(agentRequest-Handler-3:) Attempting to create volume
ea985424-d237-11e4-b2aa-c81f66f5bb98 (NetworkFilesystem) in pool
9af29c7c-b3b6-329b-8427-8929fb18fedf with size 2684354560

I have the feeling something is going wrong there with the libvirt
setup. I have completely emptied the secondary storage and re-deployed
the secondary storage VM but to no avail.

Does anyone have a suggestion where I can find the reason for this?

Kind regards;

- -- 

Daniel Kollmer | Sr. System Engineer - OTS |
daniel.kollmer@tomtom.com | Phone: +31 20 75 75 084 | Mobile: +31
(0)6 29 13 96 47
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