Hello Folks

We are seeing some errors consistently while migrating vm's from one node
another node but still not able to find out the root cause of it. Can
anyone please let me know what might be causing the issue? The vm's are
migrated successfully though

This issue happens when I try to migrate the vm either from cloudmonkey
command or through UI.

Management server:

$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 12.04.3 LTS
Release: 12.04
Codename: precise


Error logs from management server:

Aug 10 12:35:48 node13 sh[50956]: 2018-08-10 12:35:48,243{GMT} INFO [
resource.wrapper.LibvirtMigrateCommandWrapper] (agentRequest-Handler-5:)
Waiting for migration of i-884-15037-VM to complete, waited 3000ms
Aug 10 12:35:48 node13 sh[50956]: 2018-08-10 12:35:48,486{GMT} INFO [
resource.wrapper.LibvirtMigrateCommandWrapper] (agentRequest-Handler-1:)
Waiting for migration of i-884-14365-VM to complete, waited 10000ms
Aug 10 12:35:49 node13 sh[50956]: libvirt: QEMU Driver error : internal
error: unable to execute QEMU command 'migrate-set-capabilities': There's a
migration process in progressAug 10 12:35:49 node13 sh[50956]: 2018-08-10
12:35:49,087{GMT} INFO [resource.wrapper.LibvirtMigrateCommandWrapper]
(agentRequest-Handler-1:) Migration thread for i-884-14365-VM is done
Aug 10 12:35:49 node13 sh[50956]: 2018-08-10 12:35:49,087{GMT} DEBUG
[resource.wrapper.LibvirtMigrateCommandWrapper] (agentRequest-Handler-1:)
Failed to execute while migrating domain: org.libvirt.LibvirtException:
internal error: unable to execute QEMU command 'migrate-set-capabilities':
There's a migration process in progress
Aug 10 12:35:49 node13 sh[50956]: 2018-08-10 12:35:49,087{GMT} DEBUG [kvm.
resource.LibvirtComputingResource] (agentRequest-Handler-1:) Restoring the
metadata of vm snapshots of vm i-884-14365-VM
Aug 10 12:35:49 node13 sh[50956]: 2018-08-10 12:35:49,088{GMT} DEBUG [cloud.
agent.Agent] (agentRequest-Handler-1:) Seq 367-5848768541070742315: { Ans: ,
MgmtId: 48674822042491, via: 367, Ver: v1, Flags: 10, [{
"com.cloud.agent.api.MigrateAnswer":{"result":false,"details":"org.libvirt.LibvirtException:
internal error: unable to execute QEMU command 'migrate-set-capabilities':
There's a migration process in progress","wait":0}}] }


Agent:

# lsb_release -a No LSB modules are available. Distributor ID: Ubuntu
Description: Ubuntu 16.04.3 LTS Release: 16.04 Codename: xenial

Error logs from agent:


2018-08-10 12:17:26,030 DEBUG
[resource.wrapper.LibvirtMigrateCommandWrapper]
(agentRequest-Handler-4:null) Failed to execute while migrating domain:
org.libvirt.LibvirtException: internal error: unable to execute QEMU
command 'migrate-set-capabilities': There's a migration process in progress
2018-08-10 12:17:26,030 DEBUG [kvm.resource.LibvirtComputingResource]
(agentRequest-Handler-4:null) Restoring the metadata of vm snapshots of vm
i-884-14365-VM 2018-08-10 12:17:26,031 DEBUG [cloud.agent.Agent]
(agentRequest-Handler-4:null) Seq 367-5848768541070742169: { Ans: , MgmtId:
48674822042491, via: 367, Ver: v1, Flags: 10,
[{"com.cloud.agent.api.MigrateAnswer":{"result":false,"details":"org.libvirt.LibvirtException:
internal error: unable to execute QEMU command 'migrate-set-capabilities':
There's a migration process in progress","wait":0}}] }

2018-08-10 12:17:26,564 INFO
[resource.wrapper.LibvirtMigrateCommandWrapper]
(agentRequest-Handler-4:null) Live migration of instance i-884-14365-VM
initiated


-- 
Thanks and regards
Rakesh venkatesh

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