Comment 4 for bug 1576688

Migration fails as one libvirtd daemon can't connect to another one:

2016-04-29 12:10:51.162 16241 ERROR nova.virt.libvirt.driver [req-01a6cad4-5d70-4086-8554-907d48777914 b58b04ab93924d3fa382e1ee0f17ae1f 0d91ed8
b75bc4f648368639732ba8c64 - - -] [instance: 8091d537-b975-4781-8680-e0abdd834255] Live Migration failure: operation failed: Failed to connect t
o remote libvirt URI qemu+tcp://node-3.test.domain.local/system: unable to connect to server at 'node-3.test.domain.local:16509': Connection refused

We are trying to find an environment to check why that happens.