Description of problem:
When attaching two or more labeled networks to a cluster which has a host with a matching labled interface, the first attachment of network to cluster will be configured properly on the host. During that period, the host fails to serve a sequential 'setup networks' request for configuring the other attached networks.

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


How reproducible:
100%

Steps to Reproduce:
1. Label nic with 'lbl1' on host x.
2. Label networks 'red' and 'blue' with label 'lbl1'
3. Assign 'red' and 'blue' to x's cluster

Actual results:
The first network is configured properly, but the second fails with an error in the engine.log stating:

2014-01-06 18:14:59,386 ERROR [org.ovirt.engine.core.vdsbroker.vdsbroker.SetupNetworksVDSCommand] (org.ovirt.thread.pool-6-thread-3) [518ee944] org.ovirt.engine.core.vdsbroker.vdsbroker.VDSErrorException: VDSGenericException: VDSErrorException: Failed to SetupNetworksVDS, error = Resource unavailable, code = 40


Expected results:
All the networks should be properly configured on the host (if they can co-exist on a single nic)

Additional info:
The error might occur for any 2 sequential requests to the host for the sake of setup networks (i.e. assigned 2 networks which are  labeled differently to 2 host's nics which are labeled accordingly).