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the_nuts
Asked: 2018-12-11 09:38:15 +0800 CST

nginx reload doesn't work, but restart does

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I installed on a new server with Ubuntu 18.04 Nginx mainline, current version nginx/1.15.6

Whichever way I try to reload nginx, it gives no error but it doesn't work, the configuration isn't reloaded:

# nginx -t
nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
nginx: configuration file /etc/nginx/nginx.conf test is successful
# 
# service nginx reload
# /etc/init.d/nginx reload
[ ok ] Reloading nginx configuration (via systemctl): nginx.service.
# nginx -s reload
# systemctl reload nginx

If I do restart instead, it works but with some seconds of downtime that I want to avoid. What could be the issue?

ubuntu

1 Answers

  1. IIRC nginx asks its worker threads to restart soon when you send a reload - and with HTTP/2 it can take a while for the threads to recycle (they wait until they are idle).

    it works but with some seconds of downtime

    Erk, I'm running approx 200 sites behind my nginx proxies and it takes about half a second to do a restart on each one.

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