** Changed in: neutron
Status: New => Won't Fix
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https://bugs.launchpad.net/bugs/1907175
Title:
intermittently ALL VM's floating IP connection is disconnected, and
can be reconnected after 5-6 minutes
Status in neutron:
Won't Fix
Bug description:
Current configuration: 49node centos 7.8(Kernel version =
3.10.0-1127.el7.x86_64)
kolla-ansible 9.2.1 (openvswitch - 2.12.0 /
neutron-server 15.1.0)
Phenomenon: The floating IP connection is disconnected, and the connection
becomes possible again after 5-6 minutes. Occurs by all vm on nodes.
The internal ip connection is not disconnected, and if openvswitch_vswitchd
is restarted in case of failure, the problem is solved.
The public network, physnet1 (172.29.75.0~172.29.84.0), is tied in
LACP(Bond_mode =4 )
mode by VLAN, and the TENANT NETWORK is composed of vxlan. (Use DVR)
As a result of the ping tcpdump test, the network sends a ping to the node
with the vm, but the vm does not respond.
=== ml2_conf.ini ============================================================
[root@2020c5lut006 neutron-server]# cat ml2_conf.ini
[ml2]
type_drivers = flat,vlan,vxlan
tenant_network_types = vxlan
mechanism_drivers = openvswitch,baremetal,l2population
extension_drivers = qos,port_security
path_mtu = 9000
[ml2_type_vlan]
network_vlan_ranges = physnet1
[ml2_type_flat]
flat_networks = *
[ml2_type_vxlan]
vni_ranges = 1:1000
[securitygroup]
firewall_driver =
neutron.agent.linux.iptables_firewall.OVSHybridIptablesFirewallDriver
[agent]
tunnel_types = vxlan
l2_population = true
arp_responder = true
enable_distributed_routing = True
extensions = qos
[ovs]
bridge_mappings = physnet1:br-ex,physnet2:br-cephfs,physnet3:br-api
datapath_type = system
ovsdb_connection = tcp:127.0.0.1:6640
local_ip = 20.21.2.101
==neutron.conf
====================================================================
[root@2020c5lut006 neutron-server]# cat neutron.conf
[DEFAULT]
debug = False
log_dir = /var/log/kolla/neutron
use_stderr = False
bind_host = 20.21.1.101
bind_port = 9696
api_paste_config = /usr/share/neutron/api-paste.ini
endpoint_type = internalURL
api_workers = 5
metadata_workers = 5
rpc_workers = 3
rpc_state_report_workers = 3
metadata_proxy_socket = /var/lib/neutron/kolla/metadata_proxy
interface_driver = openvswitch
allow_overlapping_ips = true
core_plugin = ml2
service_plugins = firewall_v2,qos,router
dhcp_agents_per_network = 2
l3_ha = true
max_l3_agents_per_router = 3
transport_url =
rabbit://openstack:mMZl0hvZ5KSGQgfqtAbbBRkpMfEbzIKjDUHu8NSd@20.21.1.101:5672,openstack:mMZl0hvZ5KSGQgfqtAbbBRkpMfEbzIKjDUHu8NSd@20.21.1.102:5672,openstack:mMZl0hvZ5KSGQgfqtAbbBRkpMfEbzIKjDUHu8NSd@20.21.1.103:5672//
router_distributed = True
ipam_driver = internal
global_physnet_mtu = 9000
[nova]
auth_url = http://20.21.1.100:35357
auth_type = password
project_domain_id = default
user_domain_id = default
region_name = RegionOne
project_name = service
username = nova
password = rChwHtVHMqLK3AHRkKfZ7rxiQ74Am8EJHWvbEyQt
endpoint_type = internal
[oslo_middleware]
enable_proxy_headers_parsing = True
[oslo_concurrency]
lock_path = /var/lib/neutron/tmp
[agent]
root_helper = sudo neutron-rootwrap /etc/neutron/rootwrap.conf
[database]
connection =
mysql+pymysql://neutron:PZl2BQm7LesapA6Ks9lqOuUc6DU4kRHeSWwPNvH1@20.21.1.100:3306/neutron
max_retries = -1
[keystone_authtoken]
www_authenticate_uri = http://20.21.1.100:5000
auth_url = http://20.21.1.100:35357
auth_type = password
project_domain_id = default
user_domain_id = default
project_name = service
username = neutron
password = XjxBaFwek0aaKj0rLaqeUXqfp7lrNk5sdkIFGAeE
memcache_security_strategy = ENCRYPT
memcache_secret_key = w6eOcER3TlZzidSL7wjea2rnbMWGUlV7BiO3ls3J
memcached_servers = 20.21.1.101:11211,20.21.1.102:11211,20.21.1.103:11211
[oslo_messaging_notifications]
transport_url =
rabbit://openstack:mMZl0hvZ5KSGQgfqtAbbBRkpMfEbzIKjDUHu8NSd@20.21.1.101:5672,openstack:mMZl0hvZ5KSGQgfqtAbbBRkpMfEbzIKjDUHu8NSd@20.21.1.102:5672,openstack:mMZl0hvZ5KSGQgfqtAbbBRkpMfEbzIKjDUHu8NSd@20.21.1.103:5672//
driver = noop
[octavia]
base_url = http://20.21.1.100:9876
[placement]
auth_type = password
auth_url = http://20.21.1.100:35357
username = placement
password = s1VxNvJeh8CDOjeqa6hi8eF0QhQdDBp12SJdyfll
user_domain_name = Default
project_name = service
project_domain_name = Default
os_region_name = RegionOne
os_interface = internal
[privsep]
helper_command = sudo neutron-rootwrap /etc/neutron/rootwrap.conf
privsep-helper
====================================================================
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