[ovirt-users] [STORAGE] Adding posix compliant FS

[Julian De Marchi]

Think I found some more clues.

Thread-21910::DEBUG::2014-12-17 
11:26:07,277::lvm::288::Storage.Misc.excCmd::(cmd) /usr/bin/sudo -n 
/sbin/lvm vgs --config ' devices { preferred_names = ["^/dev/mapper/"] 
ignore_suspended_devices=1 write_cache_state=0 
disable_after_error_count=3 obtain_device_list_from_udev=0 filter = [ 
'\''r|.*|'\'' ] }  global {  locking_type=1  prioritise_write_locks=1 
wait_for_locks=1  use_lvmetad=0 }  backup {  retain_min = 50 
retain_days = 0 } ' --noheadings --units b --nosuffix --separator '|' 
--ignoreskippedcluster -o 
uuid,name,attr,size,free,extent_size,extent_count,free_count,tags,vg_mda_size,vg_mda_free,lv_count,pv_count,pv_name 
3ba06bee-861e-4868-8e89-f29f785bab65 (cwd None)
Thread-21910::DEBUG::2014-12-17 
11:26:07,348::lvm::288::Storage.Misc.excCmd::(cmd) FAILED: <err> = ' 
Volume group "3ba06bee-861e-4868-8e89-f29f785bab65" not found\n 
Skipping volume group 3ba06bee-861e-4868-8e89-f29f785bab65\n'; <rc> = 5
Thread-21910::WARNING::2014-12-17 
11:26:07,350::lvm::370::Storage.LVM::(_reloadvgs) lvm vgs failed: 5 [] 
['  Volume group "3ba06bee-861e-4868-8e89-f29f785bab65" not found', ' 
Skipping volume group 3ba06bee-861e-4868-8e89-f29f785bab65']
Thread-21910::DEBUG::2014-12-17 
11:26:07,351::lvm::407::Storage.OperationMutex::(_reloadvgs) Operation 
'lvm reload operation' released the operation mutex

But I still don't understand what it's trying to do. Just to recap, I do 
see it create the dir and mount the device. But when it fails it umounts 
everything.

I tried to manually create the DIR it is expecting, but ovirt seems to 
remove it and re-create it which then ends up with root:root. I can see 
this as when I add the storage I run watch ls -lh and can see it all occur.

Any help would still be greatly appreciated!

On 12/16/14 19:46, Julian De Marchi wrote:
> On 16/12/14 17:20, Aharon Canan wrote:
>> Did you "chown 36:36" the folder to get the right permissions for
>> adding to ovirt?
>
> That's the thing. Ovirt actually creates that dir when I go and try to
> add the storage. It mounts the LVM device to that dir then fails. In the
> logs I posted at http://pastebin.com/fzN9ktAX you can see it is failing
> with a permission denied error. The command that is above the error is
> touch. I think it is trying to touch a file to ensure all is well and
> when that fails it gives the error.
>
> If I knew where in the code to prefix the touch command with sudo and
> add a line to the sudoers entry I can test this idea.
>
> [...]
>
>> ----- Original Message -----
>>
>> From: "Julian De Marchi" <julian at jdcomputers.com.au>
>> To: users at ovirt.org
>> Sent: Tuesday, December 16, 2014 4:40:04 AM
>> Subject: Re: [ovirt-users] [STORAGE] Adding posix compliant FS
>>
>> On 12/16/14 08:57, Julian De Marchi wrote:
>>> Heya--
>>>
>>> I'm using ovirt 3.5 and trying to add a posix compliant FS to a node in
>>> my cluster.
>>>
>>> The storage I'm trying to add is contained within LVM. Below is a link
>>> to my log files on the node where I'm trying to attach the storage.
>>>
>>> http://pastebin.com/fzN9ktAX
>>>
>>> I've read the ovirt manual for adding posix compliant storage and
>>> believe I'm doing everything correct.
>>>
>>> Any help to get this storage added would be great thanks and if I forgot
>>> to include any info please ask.
>>
>> More info to add. I was doing an "ls" on the dir it does the mount in
>> and saw the dir was owned by root:root with different perms to the ones
>> mounted via NFS.
>>
>> [root at blade01 libvirt]# ls /rhev/data-center/mnt/ -lh
>> total 20K
>> drwxrwxrwx 4 root root 4.0K Dec 11 09:00 10.106.200.100:_VM__IMAGES
>> drwxrwxrwx 3 root root 4.0K Oct 17 09:42 10.106.200.22:_opt_vmexport
>> drwxrwxrwx 4 root root 4.0K Oct 17 09:39
>> 10.106.200.22:_var_lib_libvirt_images
>> drwxr-xr-x 3 root root 4.0K Dec 15 16:52 _dev_mapper_VolGroup-lv__images
>>
>> This could explain why the touch command fails.
>>
>> Still at a loss over the issue though.
>
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