[TriLUG] "Light" monitoring

justin parker xjparkerx at gmail.com
Fri Mar 29 11:30:58 EDT 2013


munin + monit  =)


On Fri, Mar 29, 2013 at 11:26 AM, Ron Kelley <rkelleyrtp at gmail.com> wrote:

> Forgot to mention; there are two versions of monit - the free one and the
> paid one.  We use the free one - http://mmonit.com/monit/
>
> Thanks,
>
> -----------------------------
> Ron Kelley
> rkelleyrtp at gmail.com
>
>
>
> On Mar 29, 2013, at 11:23 AM, Ron Kelley wrote:
>
> > AH - perfect situation for "monit".
> >
> > We use monit at the data center to monitor all our infrastructure
> devices, and it works great!  I can monitor CPU, RAM, disk space, services,
> watch log files or certain regexp conditions, etc.  If something happens
> (ie: apache dies), you can set an auto-restart policy accompanied by alerts.
> >
> > http://mmonit.com/
> >
> >
> > Let me know if you need any examples/pointers...
> >
> >
> >
> > Thanks,
> >
> > -----------------------------
> > Ron Kelley
> > rkelleyrtp at gmail.com
> >
> >
> >
> > On Mar 29, 2013, at 11:12 AM, Brian McCullough wrote:
> >
> >> I have been working on how to ask this question, but I guess I'll go
> >> ahead anyway.
> >>
> >>
> >> I have a system that seems to be becoming more fragile, and I would like
> >> to monitor it, and send myself e-mail messages when it needs attention.
> >>
> >>
> >> I know about Nagios, but it seems to add more load to the target system
> >> than I would like, with it's polling several times per second, depending
> >> on what services it is monitoring.
> >>
> >> I also wondered about something like MRTG, and read the graphs remotely.
> >> I don't know whether I can set up alarms that way, though.
> >>
> >> I can also do something like "ping -c 3" from an outside site.
> >>
> >>
> >> Primarily, to begin with, I am interested in load levels and web server
> >> "aliveness" over time, with the ability to alarm ( via e-mail and
> >> possibly SMS ) when some threshold ( say high load over three minutes )
> >> is passed.
> >>
> >> I have had the web server apparently just go away two or three times
> >> this month, and have seen some very high "top" values at more than one
> >> point.
> >>
> >> Side question -- since Top and friends only show one value, what is it
> saying about a multi-cpu system?
> >>
> >>
> >>
> >> Any suggestions, or roll my own?  I'm sure that that is not the answer;
> >> there have to be multiple tools to help me with this problem.
> >>
> >>
> >> Thanks,
> >> Brian
> >>
> >> --
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> >
>
> --
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