[Users] AcquireHostId problem

Context : vdsm-4.13.0-11.fc19.x86_64 sanlock-2.8-1.fc19.x86_64 Creating storage domain (NFS) fails with error in engine.log such as Error code AcquireHostIdFailure and error message VDSGenericException: VDSErrorException: Failed to CreateStorage And Cannot acquire host id: ('b4f05e3e-d714-45c4-adf9-8d269418338f', SanlockException(-203, 'Sanlock lockspace add failure', 'Sanlock exception')) Reading the mail archive, I can see that this is a know issue but I do not see the workaround. Can someone enlight me ? Also, is there somewhere a coherent instruction set in order to make NFSv3 work (including iptables settings). I had to stop iptables to unblock myself...