openstack team mailing list archive

[Steve Heistand <steve.heistand@xxxxxxxx>]

so I dont think there is a network or disk bottle neck now.
in watching instances launch I see that the disk image itself gets copied out to the compute
node in < 1 minute, the xml file for libvirt gets created. then a pause of ~ 20 minutes
then the kvm process starts up and off the VM goes just fine.
aside from messages like:
2013-05-01 19:43:40.363+0000: 2377: warning : virAuditSend:135 : Failed to send audit message virt=kvm vm="instance-0000014c" uuid=d72afa21-844a-4ea0-8b96-0a4e5e4da5eb vm-ctx=? img-ctx=? model=stack: Operation not permitted

and these dont start until the kvm process starts,  I see nothing in the logs.
but then I dont have debug on which I will do next.

what is causing the pause in between is the question.  hopefully debug on will help.


s


On 05/01/2013 11:43 AM, Rick Jones wrote:
> On 05/01/2013 10:43 AM, Steve Heistand wrote:
>> there may be some network issues going on here, trying to shove some amount of data
>> bigger then a few Gig seems to start slowing things down.
> 
> If you think there is an actual network problem, you could I suppose try 
> exploring that with netperf or iperf.  It seems unlikely that the 
> network could retain a "memory" of a previous transfer to cause a 
> subsequent, non-overlapping transfer to run more slowly.
> 
> The logs on the compute node(s) will show how long it took to actually 
> retrieve the image yes?
> 
> rick jones
> 

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 Steve Heistand                           NASA Ames Research Center
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