Two options:

1) Use cron if you can accept minimum 1 minute between every launch.
2) Use a a script with a sleep() instruction and verify that the script is
always running.
3) Use a heartbeat solution - http://linux-ha.org/wiki/Main_Page

- Gregory

2011/2/8 baalchina <baalchina@gmail.com>

> how about linux crond?i think it will be much easier than moudle.
>
> 在 2011-2-8 下午6:37，"michalkraus" <nginx-forum@nginx.us>写道：
>
> > Hello,
> > I would like my Nginx server to run every 30 seconds a service job. This
> > job will just send a message to another server that the nginx is running
> > and OK. Does anybody know how to do it?
> > I have just one idea - to write a module that will send the OK message
> > to another server. Then cron will run each 1 minute (unfortunately 30
> > seconds is not possible) a script that will send a request to the
> > module.
> >
> > Thanks in advance for your ideas,
> > Michal
> >
> > Posted at Nginx Forum:
> http://forum.nginx.org/read.php?2,173142,173142#msg-173142
> >
> >
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