FRiCKLE Labs & MegiTeam pres. ngx_supervisord

Roger Hoover roger.hoover at
Fri Oct 30 02:38:14 MSK 2009

This is exciting.  Thanks for contributing it.


2009/10/28 Piotr Sikora <piotr.sikora at>

> Hello,
> I'm proud to present a module, already mentioned on the list a few days ago
> by Grzegorz Nosek, that provides nginx with API to communicate with
> supervisord.
> Initial release adds the ability to START and STOP backends (or any
> programs) on demand. If supervisord's [program:backend0] entry is configured
> with "startsecs" parameter, then supervisord (and ngx_supervisord) will wait
> that time before returning successful or failed status. This is of course
> done in asynchronous way, so it doesn't halt nginx for a moment.
> This simple feature, combined with load-aware load balancers (like Grzegorz
> Nosek's nginx-upstream-fair) can offer very powerful features (starting
> first backend when the first request arrives, starting/stopping backends on
> demand, depending on the load, etc, etc). Patch for nginx-upstream-fair is
> included in the release and it shows how easy all of this can be achieved.
> Current version allows only one module to "register" its monitors with
> ngx_supervisord, but as soon as there will be need for more (read: other
> modules will start using ngx_supervisord), this will be changed without any
> changes in the API.
> If something is unclear, just ask.
> This module was fully funded by
> For more information, API specification & download please visit:
> Best regards,
> Piotr Sikora < piotr.sikora at >
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