gitlab在使用 https 後一直502問題

https://gitlab.com/gitlab-org/omnibus-gitlab/blob/master/README.md

Note that on a single-core server it may take up to a minute to restart Unicorn and Sidekiq. Your GitLab instance will give a 502 error until Unicorn is up again.

It is also possible to start, stop or restart individual components.

# sudo gitlab-ctl restart sidekiq 
Unicorn supports zero-downtime reloads. These can be triggered as follows:

# sudo gitlab-ctl hup unicorn 
Note that you cannot use a Unicorn reload to update the Ruby runtime.