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darren
Asked: 2011-06-02 02:58:14 +0800 CST

how to do a graceful uwsgi reload via bash script?

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I have a django application which is executing a bash script. I require the nginx server to restart so I run /etc/init.d/nginx reload which works great. I have been using restart uwsgi for uwsgi but I need to do a graceful reload instead of a hard server restart.

How can I do this?

I am currently running a bash reload uwsgi function through subprocess.popen. It seems to be only reloading the process that is calling the subprocess not all sites being hosted by the uwsgi instance. importing uwsgi and running uwsgi.reload seems to also only effect the calling process. Is there a switch for either uwsgi through python or bash that allows restarting all uwsgi proces

python uwsgi

2 Answers

  1. SIGHUP

    You can restart uWSGI by sending the SIGHUP signal to your uWSGI process like so:

    kill -HUP <process-id>

    If you want to automate this in a bash script, you can have uWSGI write away it's process id by supplying the pidfile option, for example like:

    --pidfile=/tmp/uwsgi.pid

    Then you can reload the process by:

    uwsgi --reload /tmp/uwsgi.pid

    touch-reload

    You can also start uWSGI with the touch-reload argument, which specifies a file that when touched makes uWSGI reload:

    --touch-reload=/some/file

    Then uWSGI will reload when you touch the file:

    touch /some/file

    Remember that you can only reload uWSGI when it's running with the master process mode, but that's usually the case though.

    More information: http://uwsgi-docs.readthedocs.io/en/latest/Management.html#reloading-the-server

    • 16
  2. Best Answer

    You can do it in python

    import uwsgi
uwsgi.reload()
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