these errors show up in the log on setup load when using only odl-netvirt-openstack
I imagine it is a side effect of not using vpnservice - in this case the log should be clean of errors since BGP is not expected

2016-08-14 21:44:51,125 | ERROR | lt-dispatcher-21 | BgpConfigurationManager | 322 - org.opendaylight.netvirt.bgpmanager-impl - 0.3.0.SNAPSHOT | Not owner: hasOwner: false, isOwner: false
2016-08-14 21:44:51,149 | ERROR | pool-45-thread-1 | BgpConfigurationManager | 322 - org.opendaylight.netvirt.bgpmanager-impl - 0.3.0.SNAPSHOT | running bgp replay task
2016-08-14 21:44:51,158 | ERROR | pool-45-thread-1 | BgpRouter | 322 - org.opendaylight.netvirt.bgpmanager-impl - 0.3.0.SNAPSHOT | Failed connecting to BGP config server at 127.0.0.1:7644; Exception: org.apache.thrift.transport.TTransportException: java.net.ConnectException: Connection refused
2016-08-14 21:44:51,158 | ERROR | pool-45-thread-1 | BgpConfigurationManager | 322 - org.opendaylight.netvirt.bgpmanager-impl - 0.3.0.SNAPSHOT | no config to push in bgp replay task
2016-08-14 21:44:51,309 | ERROR | Thread-157 | BgpThriftService | 322 - org.opendaylight.netvirt.bgpmanager-impl - 0.3.0.SNAPSHOT | Bgp thrift server pre serve event