Nagios as Cron

Jason Martin jhmartin at toger.us
Fri Apr 16 16:52:13 CEST 2004


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That would work for the hourly job. What do you recommend for the daily 
logrotation job? 

Thanks,
- -Jason Martin
On Fri, 16 Apr 2004, Ben Clewett wrote:

> Personally I would always use the tool designed for that task.  Cron is 
> designed to run precesses very reliably at specific time.  Nagios is 
> designed to collect data from plugins....  Eg, Nagios might timeout your 
> plugin whilst still in the process of the ftp.
> 
> If you are uploading an hourly data file, would it not be better to 
> write a plugin to check that the data file is there and less than one 
> hour old?
> 
> Ben
> 
> Jason Martin wrote:
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> > What is the community's views on using Nagios as a sort of Cron daemon? 
> > I've got a process that runs hourly in cron that downloads an updated data 
> > file from another host. The process takes about 5 seconds. The timing is 
> > not critical as long as it eventually gets executed. I want to know if the 
> > process fails (ie can't connect to the remote host, can't get the 
> > datafile, etc).
> > 
> > I could have the process send a send_nsca message indicating it's status
> > and run it out of normal cron, or I could call it as a plugin. Calling it 
> > as a plugin seems aesthetically wrong to me as it has definite 
> > externalities, as opposed to merely monitoring something else.  Does 
> > anyone else use Nagios in this manner? 
> > 
> > Another issue is for maintence jobs that run once per day.  An example
> > would be a app-specific log rotation script.  I need to know when these
> > fail as well.  In this case it pretty much has to be run from cron and use
> > send_nsca as the timing is important.  Can anyone give me some ideas on 
> > how to handle these sort of jobs?
> > 
> > Thanks,
> > - -Jason Martin
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