Created attachment 914954 [details]
logs from engine and vdsm

Description of problem:
I tried to create a disk on a gluster storage domain and failed with the following error in vdsm.log:

43487e4b-817c-46f0-a062-4317dacb370e::ERROR::2014-07-06 15:43:59,398::task::866::Storage.TaskManager.Task::(_setError) Task=`43487e4b-817c-46f0-a062-4317dacb370e`::Unexpected error
Traceback (most recent call last):
  File "/usr/share/vdsm/storage/task.py", line 873, in _run
    return fn(*args, **kargs)
  File "/usr/share/vdsm/storage/task.py", line 334, in run
    return self.cmd(*self.argslist, **self.argsdict)
  File "/usr/share/vdsm/storage/securable.py", line 77, in wrapper
    return method(self, *args, **kwargs)
  File "/usr/share/vdsm/storage/sp.py", line 1796, in createVolume
    desc=desc, srcImgUUID=srcImgUUID, srcVolUUID=srcVolUUID)
  File "/usr/share/vdsm/storage/sd.py", line 429, in createVolume
    preallocate, diskType, volUUID, desc, srcImgUUID, srcVolUUID)
  File "/usr/share/vdsm/storage/volume.py", line 375, in create
    imgPath = image.Image(repoPath).create(sdUUID, imgUUID)
  File "/usr/share/vdsm/storage/image.py", line 126, in create
    os.mkdir(imageDir)
OSError: [Errno 2] No such file or directory: '/rhev/data-center/b6869cda-8e14-410f-b323-4fe17b521a9f/1b1ae61b-bd6a-40c7-97ea-818a99668e9c/images/8a8c0c60-ddba-4b4e-944e-ce489320a6dc'



Version-Release number of selected component (if applicable):
vdsm-4.16.0-3.git601f786.el6.x86_64
ovirt-engine-3.5.0-0.0.master.20140629172257.git0b16ed7.el6.noarch


How reproducible:
Always

Steps to Reproduce:
1. Create a gluster storage domain, attach and activate it in a shared DC 
2. Create a disk on the gluster domain


Actual results:
Add disk operation fails with the mentioned error in vdsm.log 


The link for the mount path of the gluster storage domain doesn't seem to exist even though the linking operation for that domain reported as success in vdsm.log during the storage domain activation

Linking operation for domain 1b1ae61b-bd6a-40c7-97ea-818a99668e9c:


Thread-88::INFO::2014-07-06 15:55:29,042::sp::1120::Storage.StoragePool::(_linkStorageDomain) Linking /rhev/data-center/mnt/glusterSD/orion.qa.lab.tlv.redhat.com:_elad-ovirt/1b1ae61b-bd6a-40c7-97ea-818a99668e9c to
 /rhev/data-center/b6869cda-8e14-410f-b323-4fe17b521a9f/1b1ae61b-bd6a-40c7-97ea-818a99668e9c


Link doesn't exist under /rhev/data-center/pool/ :

[root@green-vdsb b6869cda-8e14-410f-b323-4fe17b521a9f]# pwd
/rhev/data-center/b6869cda-8e14-410f-b323-4fe17b521a9f
[root@green-vdsb b6869cda-8e14-410f-b323-4fe17b521a9f]# ll
total 20
lrwxrwxrwx. 1 vdsm kvm 105 Jul  6 15:57 146f410f-f906-4d4a-bb29-75f2341a3612 -> /rhev/data-center/mnt/lion.qa.lab.tlv.redhat.com:_export_rhevm-3-iso/146f410f-f906-4d4a-bb29-75f2341a3612
lrwxrwxrwx. 1 vdsm kvm 100 Jul  6 15:57 3370be57-fe1b-4bed-bd18-afb58a6d40af -> /rhev/data-center/mnt/lion.qa.lab.tlv.redhat.com:_export_elad_1/3370be57-fe1b-4bed-bd18-afb58a6d40af
lrwxrwxrwx. 1 vdsm kvm  66 Jul  6 15:57 81647cc2-d186-4f99-b480-9aa31861675b -> /rhev/data-center/mnt/blockSD/81647cc2-d186-4f99-b480-9aa31861675b
lrwxrwxrwx. 1 vdsm kvm 114 Jul  6 15:57 f5966475-1b14-40c0-96cc-c303590e1ed8 -> /rhev/data-center/mnt/vserver-spider.eng.lab.tlv.redhat.com:_vol__pnfs_acanan/f5966475-1b14-40c0-96cc-c303590e1ed8
lrwxrwxrwx. 1 vdsm kvm 100 Jul  6 15:57 mastersd -> /rhev/data-center/mnt/lion.qa.lab.tlv.redhat.com:_export_elad_1/3370be57-fe1b-4bed-bd18-afb58a6d40af
[root@green-vdsb b6869cda-8e14-410f-b323-4fe17b521a9f]



I tried to deactivate and activate the domain several times, it didn't help.

Expected results:
1) Link should exist for gluster domain
2) If link doesn't exist, it means that user cannot perform basic operations on the storage domain, which means that the domain must be reported as inactive,


Additional info: logs from engine and vdsm