Description:

lb hairpin can't work after destroy sb db

version:

[root@wsfd-advnetlab16 test]# rpm -qa | grep -E "openvswitch3.2|ovn24.03"
openvswitch3.2-3.2.0-87.el9fdp.x86_64
python3-openvswitch3.2-3.2.0-87.el9fdp.x86_64
ovn24.03-24.03.2-19.el9fdp.x86_64
ovn24.03-central-24.03.2-19.el9fdp.x86_64
ovn24.03-host-24.03.2-19.el9fdp.x86_64

steps:

systemctl start openvswitch                          
systemctl start ovn-northd                                                                            
ovn-nbctl set-connection ptcp:6641                                                                    
ovn-sbctl set-connection ptcp:6642
ovs-vsctl set open . external_ids:system-id=hv1 external_ids:ovn-remote=tcp:127.0.0.1:6642 external_ids:ovn-encap-type=geneve external_ids:ovn-encap-ip=127.0.0.1
systemctl restart ovn-controller


ovn-nbctl lr-add lr1
ovn-nbctl lrp-add lr1 lr1-ls1 00:00:01:ff:02:03 192.168.1.254/24


ovn-nbctl ls-add ls1
ovn-nbctl lsp-add ls1 ls1p1
ovn-nbctl lsp-set-addresses ls1p1 "00:00:01:01:01:01 192.168.1.1"


ovn-nbctl lsp-add ls1 ls1-lr1
ovn-nbctl lsp-set-type ls1-lr1 router
ovn-nbctl lsp-set-options ls1-lr1 router-port=lr1-ls1
ovn-nbctl lsp-set-addresses ls1-lr1 router


ovn-nbctl ls-add pub
ovn-nbctl lrp-add lr1 lr1-pub 00:00:01:ff:01:03 172.16.1.1/24


ovn-nbctl lsp-add pub pub-lr1
ovn-nbctl lsp-set-type pub-lr1 router
ovn-nbctl lsp-set-addresses pub-lr1 router
ovn-nbctl lsp-set-options pub-lr1 router-port=lr1-pub


ovn-nbctl lb-add lb_r1_tcp 172.16.1.1:50001 192.168.1.1:50001 tcp
ovn-nbctl lr-lb-add lr1 lb_r1_tcp
ovn-nbctl ls-lb-add ls1 lb_r1_tcp
ovn-nbctl lrp-set-gateway-chassis lr1-pub hv1


ovs-vsctl add-port br-int ls1p1 -- set interface ls1p1 type=internal external_ids:iface-id=ls1p1
ip netns add ls1p1
ip link set ls1p1 netns ls1p1
ip netns exec ls1p1 ip link set lo up
ip netns exec ls1p1 ip link set ls1p1 address 00:00:01:01:01:01
ip netns exec ls1p1 ip link set ls1p1 up
ip netns exec ls1p1 ip addr add 192.168.1.1/24 dev ls1p1
ip netns exec ls1p1 ip route add default via 192.168.1.254
ip netns exec ls1p1 ncat -k -l 50001 &


ovn-nbctl --wait=hv sync
ip netns exec ls1p1 ncat 172.16.1.1 50001 <<< h
for sb_table in chassis chassis_private encap address_set port_group logical_flow logical_dp_group multicast_group port_binding mac_binding dns gateway_chassis load_balancer
do
	ovn-sbctl --all destroy $sb_table
done
ovn-nbctl --wait=hv sync
ip netns exec ls1p1 ncat 172.16.1.1 50001 <<< h
systemctl restart ovn-controller
ovn-nbctl --wait=hv sync
ip netns exec ls1p1 ncat 172.16.1.1 50001 <<< h 

expected result:

lb hairpin can work after destroy sb db

actual result:

lb hairpin can't work after destroy sb db

other info:

+ ip netns exec ls1p1 ncat 172.16.1.1 50001
h
+ for sb_table in chassis chassis_private encap address_set port_group logical_flow logical_dp_group multicast_group port_binding mac_binding dns gateway_chassis load_balancer
+ ovn-sbctl --all destroy chassis
+ for sb_table in chassis chassis_private encap address_set port_group logical_flow logical_dp_group multicast_group port_binding mac_binding dns gateway_chassis load_balancer
+ ovn-sbctl --all destroy chassis_private
+ for sb_table in chassis chassis_private encap address_set port_group logical_flow logical_dp_group multicast_group port_binding mac_binding dns gateway_chassis load_balancer
+ ovn-sbctl --all destroy encap
+ for sb_table in chassis chassis_private encap address_set port_group logical_flow logical_dp_group multicast_group port_binding mac_binding dns gateway_chassis load_balancer
+ ovn-sbctl --all destroy address_set
+ for sb_table in chassis chassis_private encap address_set port_group logical_flow logical_dp_group multicast_group port_binding mac_binding dns gateway_chassis load_balancer
+ ovn-sbctl --all destroy port_group
+ for sb_table in chassis chassis_private encap address_set port_group logical_flow logical_dp_group multicast_group port_binding mac_binding dns gateway_chassis load_balancer
+ ovn-sbctl --all destroy logical_flow
+ for sb_table in chassis chassis_private encap address_set port_group logical_flow logical_dp_group multicast_group port_binding mac_binding dns gateway_chassis load_balancer
+ ovn-sbctl --all destroy logical_dp_group
+ for sb_table in chassis chassis_private encap address_set port_group logical_flow logical_dp_group multicast_group port_binding mac_binding dns gateway_chassis load_balancer
+ ovn-sbctl --all destroy multicast_group
+ for sb_table in chassis chassis_private encap address_set port_group logical_flow logical_dp_group multicast_group port_binding mac_binding dns gateway_chassis load_balancer
+ ovn-sbctl --all destroy port_binding
+ for sb_table in chassis chassis_private encap address_set port_group logical_flow logical_dp_group multicast_group port_binding mac_binding dns gateway_chassis load_balancer
+ ovn-sbctl --all destroy mac_binding
+ for sb_table in chassis chassis_private encap address_set port_group logical_flow logical_dp_group multicast_group port_binding mac_binding dns gateway_chassis load_balancer
+ ovn-sbctl --all destroy dns
+ for sb_table in chassis chassis_private encap address_set port_group logical_flow logical_dp_group multicast_group port_binding mac_binding dns gateway_chassis load_balancer
+ ovn-sbctl --all destroy gateway_chassis
+ for sb_table in chassis chassis_private encap address_set port_group logical_flow logical_dp_group multicast_group port_binding mac_binding dns gateway_chassis load_balancer
+ ovn-sbctl --all destroy load_balancer
+ ovn-nbctl --wait=hv sync
+ ip netns exec ls1p1 ncat 172.16.1.1 50001
Ncat: TIMEOUT.
+ systemctl restart ovn-controller
+ ovn-nbctl --wait=hv sync
+ ip netns exec ls1p1 ncat 172.16.1.1 50001
h