I sent WINCH to the old master. In this case 32277. After sending WINCH, I can send QUIT to the old master and it exits. Everything looks fine at that point. But it seems a little odd to have to do this.
> On Apr 4, 2017, at 4:43 AM, Lucas Rolff <[email protected]> wrote: > > Hello Marc, > > For which PID do you send the WINCH signal? > > > From: nginx <[email protected] <mailto:[email protected]>> on > behalf of Marc Soda <[email protected] <mailto:[email protected]>> > Reply-To: "[email protected] <mailto:[email protected]>" <[email protected] > <mailto:[email protected]>> > Date: Tuesday, 4 April 2017 at 04.04 > To: "[email protected] <mailto:[email protected]>" <[email protected] > <mailto:[email protected]>> > Subject: Binary upgrade with systemd > > Hello, > > I’m using nginx 1.10.3 custom built on Ubuntu 16.04. I’m also using the > recommended systemd service file: > > [Unit] > Description=The NGINX HTTP and reverse proxy server > After=syslog.target network.target remote-fs.target nss-lookup.target > > [Service] > Type=forking > PIDFile=/run/nginx.pid > ExecStartPre=/usr/sbin/nginx -t > ExecStart=/usr/sbin/nginx > ExecReload=/bin/kill -s HUP $MAINPID > ExecStop=/bin/kill -s QUIT $MAINPID > PrivateTmp=true > > [Install] > WantedBy=multi-user.target > > I’m try to do a no downtime upgrade with the USR2 and WINCH signals. Here is > my process list before: > > root 32277 0.0 0.4 1056672 71148 ? Ss 21:51 0:00 nginx: > master process /usr/local/nginx/sbin/nginx > www 32278 0.0 0.4 1057924 73152 ? S< 21:51 0:00 \_ nginx: > worker process > www 32279 0.0 0.4 1057924 73152 ? S< 21:51 0:00 \_ nginx: > worker process > www 32280 0.0 0.4 1057924 73152 ? S< 21:51 0:00 \_ nginx: > worker process > www 32281 0.0 0.4 1057924 73152 ? S< 21:51 0:00 \_ nginx: > worker process > www 32282 0.0 0.4 1057924 73152 ? S< 21:51 0:00 \_ nginx: > worker process > www 32283 0.0 0.4 1057924 73152 ? S< 21:51 0:00 \_ nginx: > worker process > www 32288 0.0 0.4 1057924 73152 ? S< 21:51 0:00 \_ nginx: > worker process > www 32289 0.0 0.4 1057924 73152 ? S< 21:51 0:00 \_ nginx: > worker process > www 32290 0.0 0.4 1057924 73152 ? S< 21:51 0:00 \_ nginx: > worker process > www 32291 0.0 0.4 1057924 73152 ? S< 21:51 0:00 \_ nginx: > worker process > www 32292 0.0 0.4 1057924 73152 ? S< 21:51 0:00 \_ nginx: > worker process > www 32293 0.0 0.4 1057924 73152 ? S< 21:51 0:00 \_ nginx: > worker process > www 32294 0.0 0.4 1056672 72212 ? S 21:51 0:00 \_ nginx: > cache manager process > > and here it is after sending USR2: > > root 32277 0.0 0.4 1056672 71868 ? Ss 21:51 0:00 nginx: > master process /usr/local/nginx/sbin/nginx > www 32278 0.0 0.4 1057924 73152 ? S< 21:51 0:00 \_ nginx: > worker process > www 32279 0.0 0.4 1057924 73152 ? S< 21:51 0:00 \_ nginx: > worker process > www 32280 0.0 0.4 1057924 73152 ? S< 21:51 0:00 \_ nginx: > worker process > www 32281 0.0 0.4 1057924 73152 ? S< 21:51 0:00 \_ nginx: > worker process > www 32282 0.0 0.4 1057924 73152 ? S< 21:51 0:00 \_ nginx: > worker process > www 32283 0.0 0.4 1057924 73152 ? S< 21:51 0:00 \_ nginx: > worker process > www 32288 0.0 0.4 1057924 73152 ? S< 21:51 0:00 \_ nginx: > worker process > www 32289 0.0 0.4 1057924 73152 ? S< 21:51 0:00 \_ nginx: > worker process > www 32290 0.0 0.4 1057924 73152 ? S< 21:51 0:00 \_ nginx: > worker process > www 32291 0.0 0.4 1057924 73152 ? S< 21:51 0:00 \_ nginx: > worker process > www 32292 0.0 0.4 1057924 73152 ? S< 21:51 0:00 \_ nginx: > worker process > www 32293 0.0 0.4 1057924 73152 ? S< 21:51 0:00 \_ nginx: > worker process > www 32294 0.0 0.4 1056672 72212 ? S 21:51 0:00 \_ nginx: > cache manager process > root 32461 5.5 0.5 1056676 82316 ? S 22:01 0:00 \_ nginx: > master process /usr/local/nginx/sbin/nginx > www 32465 0.0 0.4 1057928 73052 ? S< 22:01 0:00 \_ > nginx: worker process > www 32466 0.0 0.4 1057928 73052 ? S< 22:01 0:00 \_ > nginx: worker process > www 32467 0.0 0.4 1057928 73052 ? S< 22:01 0:00 \_ > nginx: worker process > www 32468 0.0 0.4 1057928 73052 ? S< 22:01 0:00 \_ > nginx: worker process > www 32469 0.0 0.4 1057928 73052 ? S< 22:01 0:00 \_ > nginx: worker process > www 32470 0.0 0.4 1057928 73052 ? S< 22:01 0:00 \_ > nginx: worker process > www 32471 0.0 0.4 1057928 73052 ? S< 22:01 0:00 \_ > nginx: worker process > www 32472 0.0 0.4 1057928 73052 ? S< 22:01 0:00 \_ > nginx: worker process > www 32473 0.0 0.4 1057928 73052 ? S< 22:01 0:00 \_ > nginx: worker process > www 32474 0.0 0.4 1057928 73052 ? S< 22:01 0:00 \_ > nginx: worker process > www 32475 0.0 0.4 1057928 73052 ? S< 22:01 0:00 \_ > nginx: worker process > www 32476 0.0 0.4 1057928 73052 ? S< 22:01 0:00 \_ > nginx: worker process > www 32477 0.0 0.4 1056676 72176 ? S 22:01 0:00 \_ > nginx: cache manager process > www 32478 0.0 0.4 1056676 72176 ? S 22:01 0:00 \_ > nginx: cache loader process > > Notice how the new master is a child of the old master. If I send a WINCH I > get: > > root 32277 0.0 0.4 1056672 71868 ? Ss 21:51 0:00 nginx: > master process /usr/local/nginx/sbin/nginx > root 32461 0.2 0.5 1056676 82316 ? S 22:01 0:00 \_ nginx: > master process /usr/local/nginx/sbin/nginx > www 32465 0.0 0.4 1057928 73052 ? S< 22:01 0:00 \_ > nginx: worker process > www 32466 0.0 0.4 1057928 73052 ? S< 22:01 0:00 \_ > nginx: worker process > www 32467 0.0 0.4 1057928 73052 ? S< 22:01 0:00 \_ > nginx: worker process > www 32468 0.0 0.4 1057928 73052 ? S< 22:01 0:00 \_ > nginx: worker process > www 32469 0.0 0.4 1057928 73052 ? S< 22:01 0:00 \_ > nginx: worker process > www 32470 0.0 0.4 1057928 73052 ? S< 22:01 0:00 \_ > nginx: worker process > www 32471 0.0 0.4 1057928 73052 ? S< 22:01 0:00 \_ > nginx: worker process > www 32472 0.0 0.4 1057928 73052 ? S< 22:01 0:00 \_ > nginx: worker process > www 32473 0.0 0.4 1057928 73052 ? S< 22:01 0:00 \_ > nginx: worker process > www 32474 0.0 0.4 1057928 73052 ? S< 22:01 0:00 \_ > nginx: worker process > www 32475 0.0 0.4 1057928 73052 ? S< 22:01 0:00 \_ > nginx: worker process > www 32476 0.0 0.4 1057928 73052 ? S< 22:01 0:00 \_ > nginx: worker process > www 32477 0.0 0.4 1056676 72176 ? S 22:01 0:00 \_ > nginx: cache manager process > www 32478 0.0 0.4 1056676 72176 ? S 22:01 0:00 \_ > nginx: cache loader process > > which is not what I’m looking for. Is this a limitation when running with > systemd? > > Thanks, > Marc > _______________________________________________ > nginx mailing list > [email protected] > http://mailman.nginx.org/mailman/listinfo/nginx
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