Unable to reproduce. May have been fixed by bugs closed in comment #3.
** Changed in: neutron
Status: In Progress => Invalid
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https://bugs.launchpad.net/bugs/1493945
Title:
Router scheduling at network node fails under scale
Status in neutron:
Invalid
Bug description:
After around 100 routers being scheduled to a neutron node, subsequent
schedulings fail with the following extracted signature:
38343:2015-09-09 06:53:15.305 mDEBUG neutron.agent.l3.agent
[req-d7ce10e2-b689-4c5b-b4c7-30aa4f1fdbbb admin
cdd316b857a947488ca9120aef5f6891m] Got routers updated notification
:[u'54ffc2c4-123b-460b-bd2f-01ae5277e3e1'] from (pid=19102) routers_updated
/opt/stack/neutron/neutron/agent/l3/agent.py:385
38448:2015-09-09 06:53:16.328 mDEBUG neutron.agent.l3.agent
[req-63d36e16-5d5d-4575-825b-28722ec28a1e admin
cdd316b857a947488ca9120aef5f6891m] Got routers updated notification
:[u'54ffc2c4-123b-460b-bd2f-01ae5277e3e1'] from (pid=19102) routers_updated
/opt/stack/neutron/neutron/agent/l3/agent.py:385
41013:2015-09-09 06:54:23.815 mDEBUG neutron.agent.l3.agent [-m] Starting
router update for 54ffc2c4-123b-460b-bd2f-01ae5277e3e1, action None, priority 0
from (pid=19102) _process_router_update
/opt/stack/neutron/neutron/agent/l3/agent.py:456
42690:2015-09-09 06:55:23.818 ERROR neutron.agent.l3.agent [-] Failed to
fetch router information for '54ffc2c4-123b-460b-bd2f-01ae5277e3e1'
42710:2015-09-09 06:55:23.821 mDEBUG neutron.agent.l3.agent [-m] Starting
router update for 54ffc2c4-123b-460b-bd2f-01ae5277e3e1, action None, priority 0
from (pid=19102) _process_router_update
/opt/stack/neutron/neutron/agent/l3/agent.py:456
42738:2015-09-09 06:55:30.615 mDEBUG oslo_messaging._drivers.amqpdriver [-m]
queues: 8, message: {u'_unique_id': u'c3f0a880f9544bf8b938bb6ced4fee6f',
u'failure': None, u'result': [{u'status': u'ACTIVE', u'_interfaces':
[{u'allowed_address_pairs': [], u'extra_dhcp_opts': [], u'device_owner':
u'network:router_interface', u'port_security_enabled': False,
u'binding:profile': {}, u'fixed_ips': [{u'subnet_id':
u'3d01720b-324d-4f69-8767-43705217aeb0', u'prefixlen': 24, u'ip_address':
u'192.168.18.1'}], u'id': u'7ef5df56-e82b-4fb8-8b1c-836ec93338d3',
u'security_groups': [], u'binding:vif_details': {}, u'binding:vif_type':
u'unbound', u'mac_address': u'fa:16:3e:ee:9f:33', u'status': u'DOWN',
u'subnets': [{u'ipv6_ra_mode': None, u'cidr': u'192.168.18.0/24',
u'gateway_ip': u'192.168.18.1', u'id': u'3d01720b-324d-4f69-8767-43705217aeb0',
u'subnetpool_id': None}], u'binding:host_id': u'legacy-network-1',
u'device_id': u'54ffc2c4-123b-460b-bd2f-01ae5277e3e1', u'name': u'',
u'admin_state_up': Tr
ue, u'network_id': u'7a77e6c2-6e25-4223-9981-987f33e75d18', u'dns_name': u'',
u'binding:vnic_type': u'normal', u'tenant_id':
u'4cd3d0ecfa6f48bb946932481ef04b4e', u'extra_subnets': []}], u'enable_snat':
True, u'ha_vr_id': 0, u'gw_port_host': None, u'gw_port_id':
u'2a3dabbc-db24-40c5-880a-3ef738537520', u'admin_state_up': True, u'tenant_id':
u'4cd3d0ecfa6f48bb946932481ef04b4e', u'gw_port': {u'allowed_address_pairs': [],
u'extra_dhcp_opts': [], u'device_owner': u'network:router_gateway',
u'port_security_enabled': False, u'binding:profile': {}, u'fixed_ips':
[{u'subnet_id': u'd43deb2a-6bcd-40b2-b559-36a798e932ba', u'prefixlen': 20,
u'ip_address': u'172.18.128.101'}], u'id':
u'2a3dabbc-db24-40c5-880a-3ef738537520', u'security_groups': [],
u'binding:vif_details': {}, u'binding:vif_type': u'unbound', u'mac_address':
u'fa:16:3e:b5:fa:de', u'status': u'DOWN', u'subnets': [{u'ipv6_ra_mode': None,
u'cidr': u'172.18.128.0/20', u'gateway_ip': u'172.18.128.1', u'id':
u'd43deb2a-6bcd-40b2-b559-36a
798e932ba', u'subnetpool_id': None}], u'binding:host_id': u'legacy-network-1',
u'device_id': u'54ffc2c4-123b-460b-bd2f-01ae5277e3e1', u'name': u'',
u'admin_state_up': True, u'network_id':
u'c546009b-207c-44cd-8a4b-3e1e426eb56b', u'dns_name': u'',
u'binding:vnic_type': u'normal', u'tenant_id': u'', u'extra_subnets': []},
u'distributed': False, u'_snat_router_interfaces': [], u'routes': [],
u'external_gateway_info': {u'network_id':
u'c546009b-207c-44cd-8a4b-3e1e426eb56b', u'enable_snat': True,
u'external_fixed_ips': [{u'subnet_id': u'd43deb2a-6bcd-40b2-b559-36a798e932ba',
u'ip_address': u'172.18.128.101'}]}, u'ha': False, u'id':
u'54ffc2c4-123b-460b-bd2f-01ae5277e3e1', u'name': u'router-100'}]} from
(pid=19102) put
/usr/local/lib/python2.7/dist-packages/oslo_messaging/_drivers/amqpdriver.py:230
42921:2015-09-09 06:56:23.824 ERROR neutron.agent.l3.agent [-] Failed to
fetch router information for '54ffc2c4-123b-460b-bd2f-01ae5277e3e1'
The failure above comes from oslo_messaging timing out while getting
router information at line 465 in _process_router_update. However,
the status of the now unscheduled router is still show as ACTIVE by
the neutron server, so no one will know about the failure.
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