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instance hangs when registering image

 

 

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gabriel_staicu at yahoo

May 11, 2012, 5:49 AM

Post #1 of 3 (174 views)
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instance hangs when registering image

Hi,

I have a server on which I run all the the services of openstack.
The characteristics of the server are:
-cpu:12 cores
-ram:24 GB
-hdd: 500GB
-ubuntu12.04 64bits
-openstack essex installed from default repository

I observed the following behavior:
If while I am registering an image, I am working on a winxp running instance (for example, starting an application) the working instance hangs. Since now I didn't discover a method to regain access to it. I tried to reboot it but without success.

In the same context while the glance is registering the image the iostat shows 100% utilization for I/O.

Has anyone else observed the issue?


Regards,
Gabriel


jaypipes at gmail

May 11, 2012, 8:26 AM

Post #2 of 3 (178 views)
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Re: instance hangs when registering image [In reply to]

Hi!

What are the specific commands you are running and what, if any, error
output are you getting? In addition, can you post the relevant nova-api
and glance-api log entries to look over?

Thanks,
-jay

On 05/11/2012 08:49 AM, Staicu Gabriel wrote:
> Hi,
>
> I have a server on which I run all the the services of openstack.
> The characteristics of the server are:
> -cpu:12 cores
> -ram:24 GB
> -hdd: 500GB
> -ubuntu12.04 64bits
> -openstack essex installed from default repository
>
> I observed the following behavior:
> If while I am registering an image, I am working on a winxp running
> instance (for example, starting an application) the working instance
> hangs. Since now I didn't discover a method to regain access to it. I
> tried to reboot it but without success.
> In the same context while the glance is registering the image the iostat
> shows 100% utilization for I/O.
>
> Has anyone else observed the issue?
>
> Regards,
> Gabriel
>
>
> _______________________________________________
> Mailing list: https://launchpad.net/~openstack
> Post to : openstack [at] lists
> Unsubscribe : https://launchpad.net/~openstack
> More help : https://help.launchpad.net/ListHelp

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andrea.grisotto at gmail

May 11, 2012, 3:33 PM

Post #3 of 3 (167 views)
Permalink
Re: instance hangs when registering image [In reply to]

> I observed the following behavior:
> If while I am registering an image, I am working on a winxp running
> instance (for example, starting an application) the working instance hangs.
> Since now I didn't discover a method to regain access to it. I tried to
> reboot it but without success.
> In the same context while the glance is registering the image the iostat
> shows 100% utilization for I/O.
>


Hi Gabriel,
I use Diablo and I have a similar behavior.
If I clean the cache instances on the compute nodes and I run a VM with a
big image (I used a 20Gbytes image)
while the image is copied from glance to the compute node the dashboard
looks to be freezed or very slow.
The problem is in 'glance-api', while the image is transfered it takes a
long time to handle the requests.
I resolved the problem bypassing 'glance-api'.
I used an ftp server to manage the data transfer so the 'glance-api' is not
overloaded.

Andrea.

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