Re: [Xen-API] Custom SM Plugin Error

[Germano Percossi <germano.percossi@xxxxxxxxxx>]

Hi Patrick, have you always used this name for your SR?
Not sure what has changed in xapi for 6.6 (apart from the
whitelist mechanism) but in 6.5 to have a recognized SR
you need to have something named <anything>SR.

I would expect something like a symlink named
CEPHSR linked to your CEPHSR.py.

Germano

On 02/18/2016 04:48 PM, Patrick Wombacher wrote:
> I have been developing a custom SR using Ceph as a backend for a while
> now. I had some decent success with XenServer 6.5, and I could load a
> couple VMs using the rbd kernel module. I have been trying to get it to
> work on 6.6 in hopes that I can move from kernel space into user space.
> I have run into a few issues, and currently cannot even get XenServer to
> recognize the new SR type, let alone attempt to use it. I found that
> there is now a whitelist of plugins, and have edited line 154 of
> /etc/xapi.conf to include my new SR type in the whitelist. However, when
> I restart xapi my SR type is not listed among available SR types. I
> checked /var/log/xensource.log and I see a strange error:
>
> Feb 18 10:34:20 xenbeta xapi: [error|xenbeta|0 |Registering SMAPIv1
> plugins D:030605a866ff|sm_exec] Rejecting SM plugin: CEPH because of
> exception: Storage_interface.Backend_error(_) (executable)
>
> Normally this would seem pretty clear, except that I’ve already used
> “chmod a+x /opt/xensource/sm/CEPH.py” on my plugin. I know my plugin is
> executable. What could be causing this error? And is there documentation
> for creating adding new plugins in Dundee?
>
> -Patrick
>
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