Description of problem:
When user creates 256 snapshots from the CLI and tries to delete all of them by using "Delete All" button it displays an error which says "Operation cancelled : Error while executing action Delete all volume snapshots: Network error during communication with the Host."

An event message gets displayed "Failed to delete all the gluster volume snapshots for the volume vol2." but all the snapshots gets deleted.

Version-Release number of selected component (if applicable):
ovirt-engine-3.6.0-0.0.master.20150317182251.git9682bc4.el6.noarch

How reproducible:
Always

Steps to Reproduce:
1. Manage a cluster through rhsc.
2. Create a volume.
3. Run the snapshot create command in a loop by executing the command "for i in {1..256}; do gluster snapshot create snap$i vol2;done"
4. Once the snapshots are created and synced in the UI, click on the "Delete All" button in the UI.

Actual results:
A popup appears with title "Operation cancelled : Error while executing action Delete all volume snapshots: Network error during communication with the Host." and event message reads as "Failed to delete all the gluster volume snapshots for the volume vol2." 

All the snapshots in the system gets deleted.


Expected results:
UI should not display Operation cancelled Popups.

Additional info: