[Rdo-list] [rhos-list] RDO problem

[Russell Bryant]

On 12/19/2013 07:45 AM, Perry Myers wrote:
> On 12/19/2013 02:03 AM, Guang Ya GY Liu wrote:
>> Hi,
>>
>> I was following this install guide to install OpenStack with RDO:
>> http://openstack.redhat.com/Quickstart
> 
> Hi,
> 
> I'm going to move this thread over to rdo-list, since that's where the
> RDO community members hang out.
> 
>> After install and OpenStack start, every time I boot a new instance,
>> there will be a new nova-compute start up, after I create two instance,
>> there are three nova-compute, do you know why the instance create caused
>> new nova-compute start?
>>
>> [root at db03b04 network-scripts(keystone_admin)]# ps -ef | grep nova-com
>> nova      5174  6099  0 01:07 ?        00:00:00 /usr/bin/python
>> /usr/bin/nova-compute --logfile /var/log/nova/compute.log  <<<<<<<<<< Why?
>> nova      6099     1  0 Dec18 ?        00:07:47 /usr/bin/python
>> /usr/bin/nova-compute --logfile /var/log/nova/compute.log
>> nova      6553  6099  0 Dec18 ?        00:00:00 /usr/bin/python
>> /usr/bin/nova-compute --logfile /var/log/nova/compute.log  <<<<<<<<<< Why?
> 
> Russell, can you provide a quick explanation here?

nova-compute spawns child processes, but not to run multiple instances
of nova-compute itself.

Perhaps it's just something inaccurate with the process list where the
command part didn't get updated... not sure.  In this case 6099 is the
normal parent nova-compute.  The others are suspect.

Can you grab an strace log from them?  Something like ...

# strace -p 5174 -o 5174.txt

-- 
Russell Bryant