Created attachment 1119495 [details]
export-snaps.tgz

Description of problem:
 Some of the snapshots are not moved to new StorageDomain when moving disk.

Version-Release number of selected component (if applicable):
3.6.3-1

How reproducible:
100% 
 I noticed originally on environment which was upgraded from 3.5 and iSCSI. This BZ & logs are from new clean test environment on NFS.


Steps to Reproduce:
1. Have VM with 1disk, 2 data SDs. 
2. In VM Snapshost subtab can see 3+1(current) snapshots
3. In Disks tab can see 1x VM disk & 4x snapshot disk
4. Start Moving HDD (VM disk subtab Move button)
6a. In Storage tab/OrigSD Disks: 2x OVF_STORE files
6b. In Storage tab/OrigSD DiskSnap: none
7a. In Storage tab/DestSD Disks: 1x VM disk & 2x OVF_STORE
7b. In Storage tab/DestSD DiskSnap: 3 disks with snapshot
8. After migration (no ERR shown, logs looks good) put Original(also master) SD to maintenance 
9. Attached an ExportDomain
10. Try to export VM (no collapse, no override) => boom! (see additional info below)
11. The failure is not clear and logs need to be investigated - it tries to fetch disks from SD which is already gone.


Actual results:
Some of the snapshots stayed on the original SD, some were moved to new SD.

Expected results:
All snapshots are moved with VM disk to new destination. 

Additional info:
Jan 29, 2016 4:53:27 PM User admin@internal moving disk myvm01_Disk1 to domain ps-ovirt-str01-ps02-n04.
Jan 29, 2016 4:57:48 PM User admin@internal finished moving disk myvm01_Disk1 to domain ps-ovirt-str01-ps02-n04.
Jan 29, 2016 6:07:01 PM Failed to export Vm myvm01 to ps-ovirt-str01-ps2-n05-exp

vdsm.log:
==============
...
jsonrpc.Executor/4::DEBUG::2016-01-29 18:06:59,741::task::550::Storage.TaskManager.Task::(__state_aborting) Task=`e6a911e3-e4e8-4cec-8e13-d1340f07f3d2`::_aborting: recover policy none
jsonrpc.Executor/4::DEBUG::2016-01-29 18:06:59,741::task::595::Storage.TaskManager.Task::(_updateState) Task=`e6a911e3-e4e8-4cec-8e13-d1340f07f3d2`::moving from state aborting -> state failed
jsonrpc.Executor/4::DEBUG::2016-01-29 18:06:59,741::resourceManager::943::Storage.ResourceManager.Owner::(releaseAll) Owner.releaseAll requests {} resources {}
jsonrpc.Executor/4::DEBUG::2016-01-29 18:06:59,742::resourceManager::980::Storage.ResourceManager.Owner::(cancelAll) Owner.cancelAll requests {}
jsonrpc.Executor/4::ERROR::2016-01-29 18:06:59,742::dispatcher::76::Storage.Dispatcher::(wrapper) {'status': {'message': "Storage domain does not exist: (u'd14c3046-f972-4427-8a56-6fadf865aaf0',)", 'code': 358}}
5a0585ff-c38b-4eb7-9653-0bdc9af4638a::DEBUG::2016-01-29 18:06:59,848::task::752::Storage.TaskManager.Task::(_save) Task=`5a0585ff-c38b-4eb7-9653-0bdc9af4638a`::_save: orig /rhev/data-center/00000001-0001-0001-0001-0000000001ec/mastersd/master/tasks/5a0585ff-c38b-4eb7-9653-0bdc9af4638a temp /rhev/data-center/00000001-0001-0001-0001-0000000001ec/mastersd/master/tasks/5a0585ff-c38b-4eb7-9653-0bdc9af4638a.temp
5a0585ff-c38b-4eb7-9653-0bdc9af4638a::DEBUG::2016-01-29 18:07:00,040::fileVolume::535::Storage.Volume::(validateVolumePath) validate path for 8caa631a-ba1e-4813-94c2-dc8cb2110894
...