Couple of questions,

-          Do you have n-cpu running in every node? (controller and both 
computes)

-          Which services do you have enabled in both compute nodes?

-          To which node corresponds the screen log provided?

-          What is the output of nova-manage service list?

Facundo.

From: Ben Nemec [mailto:[email protected]]
Sent: Monday, March 17, 2014 1:15 PM
To: OpenStack Development Mailing List (not for usage questions)
Subject: Re: [openstack-dev] [nova] OPENSTACK SERVICE ERROR


First, please don't use all caps in your subject.  Second, please do use tags 
to indicate which projects your message relates to.  In this case, that appears 
to be nova.

As far as the error, it looks like you may have some out of date code.  The 
line referenced in the backtrace is now line 1049 in api.py, not 953.  That 
suggests to me that there have been some pretty significant changes since 
whatever git revision you're currently using.

-Ben

On 2014-03-15 08:15, abhishek jain wrote:
Hi all
I have installed openstack using devstack and nearly all the functionality is 
working fine.
However I'm getting an issue during live migration .
I'm creating a stack of one controller node and two compute nodes i.e Compute 
node 1 and compute node 2 .I'm booting one VM at compute node 1 and need to 
migrate it over compute node 2.
For this I'm using NFS which is working fine.

Also I have enabled 
live_migration_flag=VIR_MIGRATE_UNDEFINE_SOURCE,VIR_MIGRATE_PEER2PEER,VIR_MIGRATE_LIVE
 in /etc/nova.conf over both the compute nodes and over controller node.

However when I apply nova live-migration command after restarting the 
nova-compute service using screen session the VM is not able to migrate.
Below are the logs after restarting nova-compute service ..

16:33.500 2599 TRACE nova.openstack.common.rpc.amqp
2014-03-15 10:16:33.500 2599 TRACE nova.openstack.common.rpc.amqp   File 
"/opt/stack/nova/nova/network/neutronv2/api.py", line 953, in 
_nw_info_build_network
2014-03-15 10:16:33.500 2599 TRACE nova.openstack.common.rpc.amqp     
label=network_name,
2014-03-15 10:16:33.500 2599 TRACE nova.openstack.common.rpc.amqp
2014-03-15 10:16:33.500 2599 TRACE nova.openstack.common.rpc.amqp 
UnboundLocalError: local variable 'network_name' referenced before assignment
2014-03-15 10:16:33.500 2599 TRACE nova.openstack.common.rpc.amqp
2014-03-15 10:16:33.500 2599 TRACE nova.openstack.common.rpc.amqp

 10$(L) n-cpu*  11$(L) n-cond  12$(L) n-crt  13$(L) n-sch  14$(L) n-novnc  
15$(L) n-xvnc  16$(L) n-cauth
Also find the attached screanshot describing the complete error.
Please help regarding this.


Thanks
Abhishek Jain




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