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networkservicemesh / deployments-k8s

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Some NSCs have more routes than expected after node restart #12121

Open NikitaSkrynnik opened 1 month ago

NikitaSkrynnik commented 1 month ago

Description

After node restart some of the NSCs have more routes than expected. Only one of them is pingable. Here is the example of routes after serveral node restarts:

default via 10.244.2.1 dev eth0 
10.244.2.0/24 via 10.244.2.1 dev eth0  src 10.244.2.12 
10.244.2.1 dev eth0 scope link  src 10.244.2.12 
172.16.0.34 dev nsm-v4 
172.16.0.40 dev nsm-v4 
172.16.0.56 dev nsm-v4 
172.16.0.92 dev nsm-v4

Possible solution

Cleanup ip_context in case of reselect state on NSC

denis-tingaikin commented 1 month ago

/cc @szvincze @ljkiraly @edwarnicke

NikitaSkrynnik commented 3 weeks ago

@edwarnicke @szvincze what do you think about creating an endpoint with more strict policies that deletes suspicious routes from ip_context?