Created attachment 884414 [details]
Logs from engine and host + screenshot

Description of problem:
I tried to import several images in parallel from a glance repository. 3 of those import operations failed with a NullPointerException.

Version-Release number of selected component (if applicable):
AV5
rhevm-3.4.0-0.12.beta2.el6ev.noarch
vdsm-4.14.2-0.2.el6ev.x86_64

How reproducible:
Not always

Steps to Reproduce:
On a RHEV-3.4 setup which has a glance repository integrated by default (called 'ovirt-imgae-repository') 
1. Import 6 images from the repository in parallel (mark all the images and click on 'import'). Import the images as templates (check the 'Import as template' check-box


Actual results:
3 of the import operations failed with a NullPointerException:

2014-04-08 19:46:52,139 INFO  [org.ovirt.engine.core.bll.AddVmTemplateCommand] (org.ovirt.thread.pool-4-thread-17) [3bfebf7] Running command: AddVmTemplateCommand internal: true. Entities affected :  ID: 009d5dc0-517f-4c87-a300-f10a6c1e1871 Type: StoragePool
2014-04-08 19:46:52,152 INFO  [org.ovirt.engine.core.utils.transaction.TransactionSupport] (org.ovirt.thread.pool-4-thread-17) [3bfebf7] transaction rolled back
2014-04-08 19:46:52,153 ERROR [org.ovirt.engine.core.bll.AddVmTemplateCommand] (org.ovirt.thread.pool-4-thread-17) [3bfebf7] Command org.ovirt.engine.core.bll.AddVmTemplateCommand throw exception: java.lang.NullPointerException


Expected results:
Import from glance should succeed

Additional info:
Logs from engine and host + screenshot