Listen socket closed after reloading by SIGUSR2

@sagaxu wrote:

Hi guys,

I have installed haproxy 1.8.1, and here is my configuration file.

global
    daemon
    maxconn 100
    master-worker no-exit-on-failure

defaults
    mode http
    timeout connect 5000ms
    timeout client 50000ms
    timeout server 50000ms

backend gateway
    balance roundrobin
    server server1 172.16.0.42:8088

frontend gateway
    bind unix@/tmp/gateway.socket
    default_backend gateway

I can connect to /tmp/gateway.socket with netcat.
Then I reload the worker by send a SIGUSR2 to the master process.
I can’t connect to /tmp/gateway.socket after the reloading.

The listen socket fd was the same as stdout.

lrwx------ 1 sagaxu sagaxu 64 Dec 21 18:07 0 -> anon_inode:[eventpoll]
lrwx------ 1 sagaxu sagaxu 64 Dec 21 18:07 1 -> socket:[17192229]
lr-x------ 1 sagaxu sagaxu 64 Dec 21 18:07 5 -> pipe:[17154247]
l-wx------ 1 sagaxu sagaxu 64 Dec 21 18:07 6 -> pipe:[17154247]

It was probably closed by the fclose clauses in haproxy.c
fclose(stdin); fclose(stdout); fclose(stderr);

thanks for your attention.

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