openstack team mailing list archive

[Nathanael Burton <nathanael.i.burton@xxxxxxxxx>]

Salman,

The location for the locks is determined by the --lock_path setting in
nova.conf.  This is apparently set to the base path where the nova
python code lives ($pybasedir) in devstack:

2012-04-14 21:35:42 DEBUG nova.service [-] lock_path : /opt/stack/nova
from (pid=3700) wait /opt/stack/nova/nova/service.py:442

Since, that directory has a bunch of important files in it, certainly
don't follow my previous advice and remove all the files in that
directory.  There is a bug
(https://bugs.launchpad.net/nova/+bug/785955) about nova not cleaning
up locks that should have been fixed in essex-4.  As part of the fix
to that Mike Pittaro wrote a cleanup locks script that should be in
/opt/stack/nova/tools/clean_file_locks.py.  Try running that and let
us know if that fixed it.  If not look for *.lock files in
/opt/stack/nova

Thanks,

Nate

On Sat, Apr 14, 2012 at 9:07 PM, Salman Malik <salmanmk@xxxxxxxx> wrote:
> Thanks Nate for the quick reply.
> There is no such directory on the system (I am using devstack if that
> helps...)
>
> Thanks,
> Salman
>
> ________________________________
> Date: Sat, 14 Apr 2012 21:00:39 -0400
> Subject: Re: [Openstack] nova-network service stuck
> From: nathanael.i.burton@xxxxxxxxx
> To: salmanmk@xxxxxxxx
> CC: openstack@xxxxxxxxxxxxxxxxxxx
>
>
> Check in Nova's lock dir, on my system it's /var/lib/nova/tmp. Remove any
> files in there and restart the services.
> Nate
> On Apr 14, 2012 8:56 PM, "Salman Malik" <salmanmk@xxxxxxxx> wrote:
>
> Hi All,
>
> I am having problem with getting nova-service to work. The last line that is
> shown on the screen is: "2012-04-14 19:42:39 DEBUG nova.utils [-] Attempting
> to grab file lock "iptables" for method "apply"... from (pid=3649) inner
> /opt/stack/nova/nova/utils.py:936" and the service is stuck at this point.
> So when I do a nova-manage service list, network service turns out to be
> unhappy. I haven't found much help on how to 'unlock' iptables file.
>
> Thoughts please ?
>
> Salman
>
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