Public bug reported:
env:
neutron version: victoria
/etc/neutron/plugins/ml2/openvswitch_agent.ini:firewall_driver=openvswitch
reproduce the problem:
$ openstack server delete xxx
Reason for error：
The port update and port remove events with very close timing.
When the update event is processed, the ovs port has been deleted. When
get_or_create_ofport reads the ovs port information from ovsdb, the port still
exists but the obtained ofport=-1.
Using ofport=-1 to call _update_flows_for_port or _set_port_filters to handle
the openflow table will report the following error
error log:
INFO neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent [None
req-984032db-a239-47ef-b80e-9064f5788a8b - - - - -] Port
61a04bae-b608-47cf-bb77-3e3a63def50c updated. Details: {'device':
'61a04bae-b608-47cf-bb77-3e3a63def50c', 'device_id':
'9a158b27-8ae8-4afd-ba8e-8e56247ac868', 'network_id':
'b225d077-0558-4b64-b32a-36217767e54f', 'port_id':
'61a04bae-b608-47cf-bb77-3e3a63def50c', 'mac_address': 'fa:16:3e:ae:77:28',
'admin_state_up': True, 'network_type': 'vxlan', 'segmentation_id': 57,
'physical_network': None, 'fixed_ips': [{'subnet_id':
'557d4d98-5e51-480b-8db5-a7f6adc615d7', 'ip_address': '172.31.16.184'}],
'device_owner': 'compute:az-x86-up-1', 'allowed_address_pairs': [],
'port_security_enabled': True, 'qos_policy_id': None, 'network_qos_policy_id':
None, 'profile': {}, 'vif_type': 'ovs', 'vnic_type': 'normal',
'security_groups': ['05a2d0ca-df71-4ef4-92d3-1464a94c8e11']}
INFO neutron.agent.securitygroups_rpc [None
req-984032db-a239-47ef-b80e-9064f5788a8b - - - - -] Refresh firewall rules
ERROR neutron.agent.linux.utils [None req-984032db-a239-47ef-b80e-9064f5788a8b
- - - - -] Exit code: 1; Cmd: ['ovs-ofctl', 'add-flows', '-O', 'OpenFlow10',
'br-int', '--bundle', '-']; Stdin:
hard_timeout=0,idle_timeout=0,priority=100,table=60,in_port=-1,cookie=6616235460093723383,actions=set_field:-1->reg5,set_field:9->reg6,resubmit(,71)
hard_timeout=0,idle_timeout=0,priority=90,table=60,dl_dst=fa:16:3e:ae:77:28,dl_vlan=0x9,cookie=6616235460093723383,actions=set_field:-1->reg5,set_field:9->reg6,strip_vlan,resubmit(,81)
hard_timeout=0,idle_timeout=0,priority=95,table=71,in_port=-1,dl_type=0x86dd,nw_proto=58,icmp_type=130,reg5=-1,cookie=6616235460093723383,actions=resubmit(,94)
hard_timeout=0,idle_timeout=0,priority=95,table=71,in_port=-1,dl_type=0x86dd,nw_proto=58,icmp_type=133,reg5=-1,cookie=6616235460093723383,actions=resubmit(,94)
hard_timeout=0,idle_timeout=0,priority=95,table=71,in_port=-1,dl_type=0x86dd,nw_proto=58,icmp_type=135,reg5=-1,cookie=6616235460093723383,actions=resubmit(,94)
hard_timeout=0,idle_timeout=0,priority=95,table=71,in_port=-1,dl_type=0x86dd,nw_proto=58,icmp_type=136,reg5=-1,cookie=6616235460093723383,actions=resubmit(,94)
hard_timeout=0,idle_timeout=0,priority=95,table=71,in_port=-1,dl_src=fa:16:3e:ae:77:28,dl_type=0x0806,arp_spa=172.31.16.184,reg5=-1,cookie=6616235460093723383,actions=resubmit(,94)
hard_timeout=0,idle_timeout=0,priority=77,dl_type=0x0800,table=72,nw_proto=6,ct_state=+new-est,reg5=-1,cookie=6616235460093723383,actions=resubmit(,73);
Stdout: ; Stderr: 2022-03-25T01:41:27Z|00001|ofp_port|WARN|Negative value -1
is not a valid port number.
ovs-ofctl: -:1: -1: invalid or unknown port for in_port
...
** Affects: neutron
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1966383
Title:
ovs-agent: value -1 is not a valid port number when _set_port_filters
Status in neutron:
New
Bug description:
env:
neutron version: victoria
/etc/neutron/plugins/ml2/openvswitch_agent.ini:firewall_driver=openvswitch
reproduce the problem:
$ openstack server delete xxx
Reason for error：
The port update and port remove events with very close timing.
When the update event is processed, the ovs port has been deleted. When
get_or_create_ofport reads the ovs port information from ovsdb, the port still
exists but the obtained ofport=-1.
Using ofport=-1 to call _update_flows_for_port or _set_port_filters to handle
the openflow table will report the following error
error log:
INFO neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent [None
req-984032db-a239-47ef-b80e-9064f5788a8b - - - - -] Port
61a04bae-b608-47cf-bb77-3e3a63def50c updated. Details: {'device':
'61a04bae-b608-47cf-bb77-3e3a63def50c', 'device_id':
'9a158b27-8ae8-4afd-ba8e-8e56247ac868', 'network_id':
'b225d077-0558-4b64-b32a-36217767e54f', 'port_id':
'61a04bae-b608-47cf-bb77-3e3a63def50c', 'mac_address': 'fa:16:3e:ae:77:28',
'admin_state_up': True, 'network_type': 'vxlan', 'segmentation_id': 57,
'physical_network': None, 'fixed_ips': [{'subnet_id':
'557d4d98-5e51-480b-8db5-a7f6adc615d7', 'ip_address': '172.31.16.184'}],
'device_owner': 'compute:az-x86-up-1', 'allowed_address_pairs': [],
'port_security_enabled': True, 'qos_policy_id': None, 'network_qos_policy_id':
None, 'profile': {}, 'vif_type': 'ovs', 'vnic_type': 'normal',
'security_groups': ['05a2d0ca-df71-4ef4-92d3-1464a94c8e11']}
INFO neutron.agent.securitygroups_rpc [None
req-984032db-a239-47ef-b80e-9064f5788a8b - - - - -] Refresh firewall rules
ERROR neutron.agent.linux.utils [None
req-984032db-a239-47ef-b80e-9064f5788a8b - - - - -] Exit code: 1; Cmd:
['ovs-ofctl', 'add-flows', '-O', 'OpenFlow10', 'br-int', '--bundle', '-'];
Stdin:
hard_timeout=0,idle_timeout=0,priority=100,table=60,in_port=-1,cookie=6616235460093723383,actions=set_field:-1->reg5,set_field:9->reg6,resubmit(,71)
hard_timeout=0,idle_timeout=0,priority=90,table=60,dl_dst=fa:16:3e:ae:77:28,dl_vlan=0x9,cookie=6616235460093723383,actions=set_field:-1->reg5,set_field:9->reg6,strip_vlan,resubmit(,81)
hard_timeout=0,idle_timeout=0,priority=95,table=71,in_port=-1,dl_type=0x86dd,nw_proto=58,icmp_type=130,reg5=-1,cookie=6616235460093723383,actions=resubmit(,94)
hard_timeout=0,idle_timeout=0,priority=95,table=71,in_port=-1,dl_type=0x86dd,nw_proto=58,icmp_type=133,reg5=-1,cookie=6616235460093723383,actions=resubmit(,94)
hard_timeout=0,idle_timeout=0,priority=95,table=71,in_port=-1,dl_type=0x86dd,nw_proto=58,icmp_type=135,reg5=-1,cookie=6616235460093723383,actions=resubmit(,94)
hard_timeout=0,idle_timeout=0,priority=95,table=71,in_port=-1,dl_type=0x86dd,nw_proto=58,icmp_type=136,reg5=-1,cookie=6616235460093723383,actions=resubmit(,94)
hard_timeout=0,idle_timeout=0,priority=95,table=71,in_port=-1,dl_src=fa:16:3e:ae:77:28,dl_type=0x0806,arp_spa=172.31.16.184,reg5=-1,cookie=6616235460093723383,actions=resubmit(,94)
hard_timeout=0,idle_timeout=0,priority=77,dl_type=0x0800,table=72,nw_proto=6,ct_state=+new-est,reg5=-1,cookie=6616235460093723383,actions=resubmit(,73);
Stdout: ; Stderr: 2022-03-25T01:41:27Z|00001|ofp_port|WARN|Negative value -1
is not a valid port number.
ovs-ofctl: -:1: -1: invalid or unknown port for in_port
...
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