[TriLUG] "Light" monitoring

[Igor Partola]

You could look at PingDom. They provide this exact service and I believe
still have a free tier.

On Fri, Mar 29, 2013 at 11:12 AM, Brian McCullough <bdmc at buadh-brath.com>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
>