Hi Tzach,

Thank you for getting back! I tested it again with
CinderNfsMountOptions: 'rw,sync,nosharecache' in Queens, but still to
no avail.

I also noticed that the file /etc/cinder/nfs_shares does not exist on
any controller, although in cinder.conf it has "#nfs_shares_config =
/etc/cinder/nfs_shares". I am not sure if this is normal for using NFS
with the containerized cinder service.

Thank you,
Cody


On Sun, Oct 7, 2018 at 5:03 AM Tzach Shefi <tsh...@redhat.com> wrote:
>
>
> Hey Cody,
>
> I recall hitting a related problem, when both Glance and Cinder use the same 
> NFS server, while each service uses it's own share if both shares reside on 
> same NFS server you may hit an selinux issue.
>
> The original bug I hit/reported, was closed EOL.
> https://bugzilla.redhat.com/show_bug.cgi?id=1491597
> Notice 4th comment, adding  nosharecache mount option helped me.
>
> I'll re-check this on queens as well maybe need to rebug it.
> Thanks
>
> Tzach
>
>
> On Sun, Oct 7, 2018 at 6:32 AM Cody <codeology....@gmail.com> wrote:
>>
>> Hi everyone,
>>
>> I have an issue with using TripleO (Queens) to setup an NFS backend for 
>> Cinder.
>>
>> My storage.yaml is as follows:
>>
>> parameter_defaults:
>>   CinderEnableIscsiBackend: false
>>   CinderEnableRbdBackend: false
>>   CinderEnableNfsBackend: true
>>   NovaEnableRbdBackend: false
>>   GlanceBackend: 'file'
>>
>>   CinderNfsMountOptions: 'rw,sync'
>>   CinderNfsServers: '192.168.24.1:/export/cinder'
>>
>>   GlanceNfsEnabled: true
>>   GlanceNfsShare: '192.168.24.1:/export/glance'
>>   GlanceNfsOptions: 'rw,sync,context=system_u:object_r:glance_var_lib_t:s0'
>>
>>   NovaNfsEnabled: true
>>   NovaNfsShare: '192.168.24.1:/export/nova'
>>   NovaNfsOptions: 'rw,sync,context=system_u:object_r:nfs_t:s0'
>>
>> I used the undercloud node as an NFS server for testing purposes. Iptables 
>> is set accordingly. The /etc/exportfs on the NFS server is as follows:
>>
>> /export/nova 192.168.24.0/24(rw,no_root_squash)
>> /export/glance 192.168.24.0/24(rw,no_root_squash)
>> /export/cinder 192.168.24.0/24(rw,no_root_squash)
>>
>> All three folders are set to chmod 777. Nova and Glance work as expected. 
>> Only Cinder remains problematic. I can try to upload volumes from overcloud, 
>> but nothing would show up in the cinder folder. Also Horizon gives errors 
>> like unable to retrieve volume and volume snapshots. Did I miss something 
>> here? I do plan to use Ceph later, but I wish to use NFS for now to test 
>> migration and failover. Any helps would be appreciated. Thank you!
>>
>> Best regards,
>> Cody
>>
>>
>>
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>
>
>
> --
>
> Tzach Shefi
>
> Senior Quality Engineer, RHCSA
>
> Red Hat
>
> tsh...@redaht.com    M: +972-54-4701080     IM: tshefi
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