nginx not removing stream socket

[Anoop Alias]

ok just found this - https://trac.nginx.org/nginx/ticket/753

So shall i use SIGTERM instead of SIGQUIT in the systemd unit file?

On Mon, Jul 4, 2016 at 7:05 PM, Anoop Alias <anoopalias01 at gmail.com> wrote:
> Hi,
>
> On CentOS7 . nginx is not removing the stream socket on shutdown
> causing restarts to fail unless the socket file is manually removed.
> nginx process itself exit .But becase of the file not being removed
> nginx is unable to bind to the socket file on next start
>
> systemd unit file
> #######################
>
> [Service]
> Type=forking
> PIDFile=/var/run/nginx.pid
> ExecStartPre=/usr/sbin/nginx -t -c /etc/nginx/nginx.conf
> ExecStart=/usr/sbin/nginx -c /etc/nginx/nginx.conf
> ExecReload=/bin/kill -s HUP $MAINPID
> ExecStop=/bin/kill -s QUIT $MAINPID
> PrivateTmp=true
>
> [Install]
> WantedBy=multi-user.target
> ###########################
>
> #nginx configuration
>
> stream {
>     upstream mysql_backend {
>         server unix:/var/lib/mysql/mysql_original.sock;
>         server x.x.x.x:13306 backup;
>     }
>
>     server {
>         listen     127.0.0.1:3306;
>         listen     unix:/var/lib/mysql/mysql.sock;
>         proxy_pass mysql_backend;
>     }
> }
> ######################################
>
> The same setting is working fine on a centos6 server with init .
>
> which use the killproc function from /etc/rc.d/init.d/functions
>
> Even on CentOS6 ..if I do
>
> kill -QUIT <nginx_pid>
>
> the binary exits without removing the socket.
>
> What am I doing wrong?.
>
> What is the correct signal to terminate the process and remove the
> sockets bound.
>
> Thanks,
> --
> Anoop P Alias



-- 
Anoop P Alias