Restarting Redmine without restarting Apache

If you are using Redmine with passenger, then you can use the following command.

$ sudo touch /usr/share/redmine/tmp/restart.txt

If the above file does not exist, then create it first and then touch it

$ cd /usr/share/redmine
$ sudo mkdir tmp
$ sudo bash
$ cd tmp
# echo restart > restart.txt
# exit
$ sudo touch /usr/share/redmine/tmp/restart.txt