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[Launchpad Bug Tracker <1479604@xxxxxxxxxxxxxxxxxx>]

[Expired for OpenStack Compute (nova) because there has been no activity
for 60 days.]

** Changed in: nova
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1479604

Title:
  load instance failed from other compute node(Nova-networking)

Status in OpenStack Compute (nova):
  Expired

Bug description:
  pre-condition:
     OS: ubuntu14.04;
     nova-networking mode, one controller node, three compute nodes(compute1, compute2, compute3), one block node; 
     only one NIC in every node;
  Error description:
    I load some instances, at first, some instances are load correctly in compute1 node, when I load the fourth instance, it's create failed(HOST is compute2 and status is ERROR) ;  

  the error logs(more information pls refer nova-compute.log as attachment):
  ERROR nova.compute.manager [-] Instance failed network setup after 1 attempt(s)
  TRACE nova.compute.manager Traceback (most recent call last):
  TRACE nova.compute.manager RemoteError: Remote error: ProcessExecutionError Unexpected error while running command.
  TRACE nova.compute.manager Exit code: 2
  TRACE nova.compute.manager Stdout: u''
  Loading network driver \'nova.netwok.linux_net\'\\n\\ndnsmasq: failed to create listening socket for 192.168.122.1: Address already in use\\n"\n'].
  TRACE nova.compute.manager 
  ERROR nova.compute.manager  Instance failed to spawn
  TRACE nova.compute.manager  RemoteError: Remote error: ProcessExecutionError Unexpected error while running command.
  TRACE nova.compute.manager Exit code: 2

  
  compute node nova.conf configuration(all compute node's configuration are same except IP address) ,
  [DEFAULT]
  dhcpbridge_flagfile=/etc/nova/nova.conf
  dhcpbridge=/usr/bin/nova-dhcpbridge
  logdir=/var/log/nova
  state_path=/var/lib/nova
  lock_path=/var/lock/nova
  force_dhcp_release=True
  iscsi_helper=tgtadm
  libvirt_use_virtio_for_bridges=True
  connection_type=libvirt
  root_helper=sudo nova-rootwrap /etc/nova/rootwrap.conf
  verbose=True
  ec2_private_dns_show_ip=True
  api_paste_config=/etc/nova/api-paste.ini
  volumes_path=/var/lib/nova/volumes
  enabled_apis=ec2,osapi_compute,metadata
  rpc_backend = rabbit
  rabbit_host = controller
  rabbit_password = RABBIT_PASS
  auth_strategy = keystone
  my_ip = 10.71.255.206
  vnc_enabled = True
  vncserver_listen = 0.0.0.0
  vncserver_proxyclient_address = 10.71.255.206
  novncproxy_base_url = http://controller:6080/vnc_auto.html
  network_api_class = nova.network.api.API
  security_group_api = nova
  firewall_driver = nova.virt.libvirt.firewall.IptablesFirewallDriver
  network_manager = nova.network.manager.FlatDHCPManager
  network_size = 254
  allow_same_net_traffic = False
  multi_host = True
  send_arp_for_ha = True
  share_dhcp_address = True
  force_dhcp_release = True
  flat_network_bridge = br100
  flat_interface = eth0
  public_interface = eth0
  [keystone_authtoken]
  auth_uri = http://controller:5000/v2.0
  identity_uri = http://controller:35357
  admin_tenant_name = service
  admin_user = nova
  admin_password = NOVA_PASS
  [glance]
  host = controller

  
  Thanks.
  Jazry

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