Re: [gentoo-user] monitoring system resource usage

[Grant]

>> >>>> Can anyone recommend a method for monitoring system resource usage in
>> >>>> a way that would allow me to correlate a rise in my web server's
>> >>>> response time with the usage of a particular system resource if such a
>> >>>> correlation exists?  I don't need it to be 100% accurate, just
>> >>>> accurate enough to be able to make the correlation with a reasonable
>> >>>> degree of certainty.
>> >>>
>> >>> http://munin-monitoring.org/
>> >>
>> >> Looks very cool indeed!  I am reading more about it now.  Do you find
>> >> it easy to set up and maintain?
>> >
>> > In my opinion it's very easy to setup. Basically you just merge it,
>> > enable your plugins (via symlink), add munin-node to the runlevel and
>> > make sure the munin cron job is enabled. Then just browse to
>> > http://localhost/munin
>> >
>> > There's also a entry on the gentoo wiki:
>> > http://wiki.gentoo.org/wiki/Munin
>>
>> Do you have CGI graphs working?  I can generate CGI HTML and I can CGI
>> zoom on graphs but I can't get munin to generate CGI graphs instead of
>> generating them statically.  I'm not sure Gentoo's
>> /etc/apache2/vhosts.d/munin.include is right since it doesn't
>> reference /munin-cgi/munin-cgi-html/ at all.
>
> I haven't tried munin, but in case it helps, you'd want to set user or group
> to be readable/executable by apache to dynamically be running the cgi scripts
> when you visit the web page.

The thing is, there are 3 CGI components.  There is HTML generation,
graph zooming, and graph generation.  The first two work for me so CGI
must be working.  I think there is a problem with the Gentoo's
munin.include for apache since it doesn't reference
/munin-cgi/munin-cgi-graph/.  I've filed a bug:

https://bugs.gentoo.org/show_bug.cgi?id=473698

Actually, I think I just fixed it and I've updated the bug.  It's a
Gentoo issue.

- Grant