reload: 50051: bind: address already in use

[qin-nz]

OS: "Ubuntu 22.04.4 LTS"
installed by apt install gobgpd
version: gobgpd/jammy,now 2.25.0-3build1 amd64

Step to reproduce:

1. system restart gobgpd
2. system reload gobgpd ( ExecReload=/usr/bin/gobgpd -r )

systemd[1]: Reloading GoBGP Routing Daemon...
gobgpd[1146209]: {"level":"info","msg":"gobgpd started","time":"2024-08-09T16:31:04+08:00"}
gobgpd[1146209]: {"Error":"listen tcp :50051: bind: address already in use","Key":":50051","Topic":"grpc","level":"warning","msg":"listen failed","time":"2024-08-09T16:31:04+08:00"}
gobgpd[1146209]: {"level":"fatal","msg":"failed to listen grpc port: listen tcp :50051: bind: address already in use","time":"2024-08-09T16:31:04+08:00"}
systemd[1]: gobgpd.service: Control process exited, code=exited, status=1/FAILURE
systemd[1]: Reload failed for GoBGP Routing Daemon.

/etc/gobgpd.conf

[global.config]
  as = 1
  router-id = "10.0.3.11"

[[neighbors]]
  [neighbors.config]
    neighbor-address = "10.0.8.1"
    peer-as = 2

[[neighbors]]
  [neighbors.config]
    neighbor-address = "10.0.9.1"
    peer-as = 3

[keithcroxford]

If you run sudo lsof -i :50051 does it show any application already bound to the port?

[fujita]

system reload gobgpd ( ExecReload=/usr/bin/gobgpd -r )

Humm, the '-r' option isn't reload. It's graceful restart?

[qin-nz]

@keithcroxford only gobgp listen 50051. step 1: system restart gobgpd this can successful run.

[qin-nz]

@fujita It's graceful restart.

gobgp/cmd/gobgpd/main.go

Line 67 in 42df8b6

GracefulRestart bool `short:"r" long:"graceful-restart" description:"flag restart-state in graceful-restart capability"`

I got gobgpd from Ubuntu apt install gobgpd and systemd service is auto generated. I don't modifiy it.