Nagios (monitoring daemon) never looks at the configs once started.
The CGIs however do read them when ever they start (which is everytime the
browser calls/refreshes a page).
The Fast CGI interface may be one way to alleviate the config parsing by
the CGI short of writing a servlet that keeps config state.
-sg
On Fri, 18 Oct 2002, Bishop, Dean wrote:
> Good morning,
>
> If i am not mistaken Ethan is working on real-time updates for v2.0.
>
> it doesn't really bother me that to restart nagios after making changes, but
> it does suprise me that Nagios has to parse the config file from the hdd
> while it is running.
>
> i just assumed that the configs would be read into memory and then
> information pulled from RAM rather than having to hit the hdd.
>
> bon fin de semaine,
> dean
>
> -----Original Message-----
> From: Nolan Martin [mailto:Nolan.Martin@co.travis.tx.us]
> Sent: Friday, October 18, 2002 3:35 PM
> To: nagios-users@lists.sourceforge.net; dean.bishop@tcdsb.org
> Subject: Re: [Nagios-users] reading configs real-time??
>
>
> I have experienced the same results. It seems the only file - that I
> have seen - that you can modify on the fly is the hostextinfo.cfg (for
> icon associations).
>
> The FAQs touch on this, in terms of adding hosts or services without
> restarting. That same authorization logic issue seems to apply to this
> situation. I agree though that it would be nice if you could make the
> changes to the existing files while Nagios is still running.
>
> I plan to duplicate the existing files, make modifications, stop
> Nagios, replace the files and reload Nagios. I would think, however,
> that you should be able to modify the files offline, replace the
> existing files with the modified files, and simply reload Nagios,
> forcing it to pull in the new configuration information.
>
> Like you said though, not the most efficient process. Perhaps other
> suggestions?
>
> Nolan
>
> >>> "Bishop, Dean" 10/18/02 02:16PM >>>
> Good morning,
>
> i was wondering if anyone else has experienced this and/or had
> an
> explaination.
>
> When i open the config files and start modifying them while Nagios is
> running, i often get errors on the web page stating that i don't have
> permission to see the configs. It seems like the files are open and
> locked.
>
> i was under the impression that the files were not read except during
> the
> startup. Guess i am wrong.
>
> so can i safely assume that the config's are not cached in memory at
> startup
> and that Nagios actually reads the configs to get information on what
> to
> check next??
>
> this doesn't see very efficient. Am i understanding wrong??
>
> thanks,
> dean
>
>
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This post was automatically imported from historical nagios-devel mailing list archives
Original poster: sghosh@sghosh.org