<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-family: Calibri, sans-serif; "><div>Hello,</div><div><br></div><div>On the compute node (IP addr : 10.176.20.4) I am seeing the following error message in /var/log/nova/nova-compute.log:</div><div><br></div><div><div>2012-11-15 14:11:12 INFO nova.openstack.common.rpc.common [-] <b>Reconnecting to AMQP server on localhost:5672</b></div><div>2012-11-15 14:11:12 ERROR nova.openstack.common.rpc.common [-] AMQP server on localhost:5672 is unreachable: [Errno 111] ECONNREFUSED. Trying again in 30 seconds.</div><div>2012-11-15 14:11:12 TRACE nova.openstack.common.rpc.common Traceback (most recent call last):</div><div>2012-11-15 14:11:12 TRACE nova.openstack.common.rpc.common File "/usr/lib/python2.7/dist-packages/nova/openstack/common/rpc/impl_kombu.py", line 469, in reconnect</div><div>2012-11-15 14:11:12 TRACE nova.openstack.common.rpc.common self._connect()</div><div>2012-11-15 14:11:12 TRACE nova.openstack.common.rpc.common File "/usr/lib/python2.7/dist-packages/nova/openstack/common/rpc/impl_kombu.py", line 446, in _connect</div><div>2012-11-15 14:11:12 TRACE nova.openstack.common.rpc.common self.connection.connect()</div><div>2012-11-15 14:11:12 TRACE nova.openstack.common.rpc.common File "/usr/lib/python2.7/dist-packages/kombu/connection.py", line 154, in connect</div><div>2012-11-15 14:11:12 TRACE nova.openstack.common.rpc.common return self.connection</div><div>2012-11-15 14:11:12 TRACE nova.openstack.common.rpc.common File "/usr/lib/python2.7/dist-packages/kombu/connection.py", line 560, in connection</div><div>2012-11-15 14:11:12 TRACE nova.openstack.common.rpc.common self._connection = self._establish_connection()</div><div>2012-11-15 14:11:12 TRACE nova.openstack.common.rpc.common File "/usr/lib/python2.7/dist-packages/kombu/connection.py", line 521, in _establish_connection</div><div>2012-11-15 14:11:12 TRACE nova.openstack.common.rpc.common conn = self.transport.establish_connection()</div><div>2012-11-15 14:11:12 TRACE nova.openstack.common.rpc.common File "/usr/lib/python2.7/dist-packages/kombu/transport/pyamqplib.py", line 255, in establish_connection</div><div>2012-11-15 14:11:12 TRACE nova.openstack.common.rpc.common connect_timeout=conninfo.connect_timeout)</div><div>2012-11-15 14:11:12 TRACE nova.openstack.common.rpc.common File "/usr/lib/python2.7/dist-packages/kombu/transport/pyamqplib.py", line 52, in __init__</div><div>2012-11-15 14:11:12 TRACE nova.openstack.common.rpc.common super(Connection, self).__init__(*args, **kwargs)</div><div>2012-11-15 14:11:12 TRACE nova.openstack.common.rpc.common File "/usr/lib/python2.7/dist-packages/amqplib/client_0_8/connection.py", line 129, in __init__</div><div>2012-11-15 14:11:12 TRACE nova.openstack.common.rpc.common self.transport = create_transport(host, connect_timeout, ssl)</div><div>2012-11-15 14:11:12 TRACE nova.openstack.common.rpc.common File "/usr/lib/python2.7/dist-packages/amqplib/client_0_8/transport.py", line 281, in create_transport</div><div>2012-11-15 14:11:12 TRACE nova.openstack.common.rpc.common return TCPTransport(host, connect_timeout)</div><div>2012-11-15 14:11:12 TRACE nova.openstack.common.rpc.common File "/usr/lib/python2.7/dist-packages/amqplib/client_0_8/transport.py", line 85, in __init__</div><div>2012-11-15 14:11:12 TRACE nova.openstack.common.rpc.common raise socket.error, msg</div><div>2012-11-15 14:11:12 TRACE nova.openstack.common.rpc.common error: [Errno 111] ECONNREFUSED</div></div><div><br></div><div><br></div><div>The rabbitmq server is running on the controller node (10.176.20.158), which is reachable from the compute node. Can someone please help me understand why the compute node is trying to connect to AMQP server on localhost.</div><div><br></div><div>nova.conf file is below:</div><div><br></div><div><div>[DEFAULT]</div><div># LOGS/STATE</div><div>verbose=True</div><div>logdir=/var/log/nova</div><div>state_path=/var/lib/nova</div><div>lock_path=/var/lock/nova</div><div>rootwrap_config=/etc/nova/rootwrap.conf</div><div><br></div><div># AUTHENTICATION</div><div>auth_strategy=keystone</div><div># [keystone_authtoken]</div><div>auth_host = 127.0.0.1</div><div>auth_port = 35357</div><div>auth_protocol = http</div><div>admin_tenant_name = service</div><div>admin_user = nova</div><div>admin_password = nova</div><div>signing_dirname = /tmp/keystone-signing-nova</div><div><br></div><div># SCHEDULER</div><div>compute_scheduler_driver=nova.scheduler.filter_scheduler.FilterScheduler</div><div><br></div><div># Cinder - VOLUMES</div><div>#volume_driver=nova.volume.driver.ISCSIDriver</div><div>#volume_group=nova-volumes</div><div>#volume_name_template=volume-%08x</div><div>#iscsi_helper=tgtadm</div><div>volume_api_class=nova.volume.cinder.API</div><div><br></div><div># DATABASE</div><div>sql_connection=mysql://nova:novadbsecret@10.176.20.158/nova</div><div><br></div><div># COMPUTE</div><div>libvirt_type=kvm</div><div>compute_driver=libvirt.LibvirtDriver</div><div>instance_name_template=instance-%08x</div><div>api_paste_config=/etc/nova/api-paste.ini</div><div><br></div><div># COMPUTE/APIS: if you have separate configs for separate services</div><div># this flag is required for both nova-api and nova-compute</div><div>allow_resize_to_same_host=True</div><div><br></div><div># APIS</div><div>enabled_apis=ec2,osapi_compute,metadata </div><div>osapi_compute_extension=nova.api.openstack.compute.contrib.standard_extensions</div><div>ec2_dmz_host=10.176.20.158</div><div>s3_host=10.176.20.158</div><div><br></div><div># RABBITMQ</div><div>rabbit_host=10.176.20.158</div><div><br></div><div># GLANCE</div><div>image_service=nova.image.glance.GlanceImageService</div><div>glance_api_servers=10.176.20.158:9292</div><div><br></div></div><div><div># NETWORK</div><div>network_manager=nova.network.manager.FlatDHCPManager</div><div>force_dhcp_release=True</div><div>dhcpbridge_flagfile=/etc/nova/nova.conf</div><div>firewall_driver=nova.virt.libvirt.firewall.IptablesFirewallDriver</div><div># Change my_ip to match each host</div><div>my_ip=10.176.20.4</div><div>public_interface=eth0</div><div>flat_interface=eth1</div><div>flat_network_bridge=br100</div><div>fixed_range=192.168.100.0/24</div><div><br></div><div># NOVNC CONSOLE</div><div>novncproxy_base_url=http://10.176.20.158:6080/vnc_auto.html</div><div># Change vncserver_proxyclient_address and vncserver_listen to match each compute host</div><div>vncserver_proxyclient_address=10.176.20.4</div><div>vncserver_listen=10.176.20.4</div><div><br></div><div><br></div><div># Following config kept from initial conf file installed by nova</div><div>dhcpbridge=/usr/bin/nova-dhcpbridge</div><div>libvirt_use_virtio_for_bridges=True</div><div>connection_type=libvirt</div><div>root_helper=sudo nova-rootwrap /etc/nova/rootwrap.conf</div><div>ec2_private_dns_show_ip=True</div><div>volumes_path=/var/lib/nova/volumes</div></div><div><br></div><div>Thank you,</div><div>Ahmed.</div></body></html>