RE: [hobbit] Devmon : a bbxsnmp.pl & routermon replacement

["Schwimmer, Eric E *HS" <EES2Y (at) hscmail.mcc.virginia.edu>]

Tens... of thousands... wow.  That's alot.  Alot alot.  That will
definitely push Devmon to limits that we haven't even dreamed of
yet.  

Right now we are polling ~800 devices with Devmon, and we are 
running at about 75% load (for a 60 second poll period)
using 7 polling nodes.   I can only imagine how manning polling
nodes it will take you to achive the same polling interval (if you
figure about 100 devices per node, thats 100 nodes for 10k devices.
Yikes!)

Most of the load (80-90% of it) is spent running template 
calculations, which right now is done on a single thread.  I thought,
earlier on in the design, that most time-intensive portion of
the polling cycle was going to be the SNMP data collection portion.

It looks like I'm going to have to farm the template code out
to the forked processes, if I want to get any more speed out of
this puppy.  I've had the idea rolling around in the back of my
head for a while now, but I've been very good at ignoring it,
as it will involve rewriting a large chunk of code.  (Not again!)

Let me know how the template building goes.  I did all of the
template documentation in a single night, so it might be a bit 
lacking :) (Suggestions for change are welcome).  Once you
get your templates done, send 'em my way too and I'll roll them
into the distro.

-Eric

-----Original Message-----
From: Dan Vande More [mailto:bigdan (at) gmail.com]
Sent: Thu 2/23/2006 4:38 PM
To: hobbit (at) hswn.dk
Subject: Re: [hobbit] Devmon : a bbxsnmp.pl & routermon replacement
 
Amazing. I was just ruminating this morning about the sad shape of
bb-xsnmp and how it wasn't integrated very well, didn't thread, and
ill-maintaned. I especially like the idea of clusting it, though I'm
not prepared to do that just yet. I do however, have tens of thousands
of devices to monitor, so the potential exists for me to use it.

Anyway, I'm diving into it as we speak, unfortunately, you don't have
templates for any of my devices (Foundry serverirons, cisco 7609s,
Ironport C600s, etc) so it's gonna take some work:)

Thanks for this promising add-on.

-Dan

p.s. It didn't make the /var/run/devmon/ dir by default.

On 2/23/06, Schwimmer, Eric E *HS <EES2Y (at) hscmail.mcc.virginia.edu> wrote:
>
> Hi everybody,
>
> I've been working on a little project for the past 6 months or so, one
> that is designed to replace bbxsnmp.pl, routermon, and other similar
> SNMP data collectors for the Hobbit and BigBrother monitoring systems.
>
> In my (extremely biased) opinion, it is one of the better SNMP data
> collectors out there.
>
> Just a few key highlights:
>
>  . Fast: Uses psuedo non-blocking SNMP queries (basically forked snmp)
>
>  . Scalable: If you want to poll many remote devices very
>    quickly, you can configure Devmon to work in a clustered
>    configuration across multiple machines.
>
>  . Easily managed: After the initial configuration, all host management
>    is done by editing your display server's bb-hosts file.
>
>  . Very customizable:  Via the Devmon template system, a savvy sysadmin
>    can use Devmon to monitor virtually any type of SNMP capable device.
>
> The project went up on SourceForge as of about 30 minutes ago; it's
> web page is at:
>   http://devmon.sf.net
>
> You can download it form there, leave a message in the forums, join
> the mailing list, etc.  I'm hoping that this will be the only Devmon
> message that goes out to the Hobbit list;  if you have any questions
> or comments for me, please please please either send them to me
> personally,
> or, preferably, join the Devmon mailing list and post your questions
> there.
>
> And last, but not least, I'd like to thank Henrik once again for his
> excellent work on Hobbit, as Devmon wouldn't be very useful without it!
> :)
>
> -Eric Schwimmer
> Network Engineer
> UVA HSCS Network Engineering
>
> To unsubscribe from the hobbit list, send an e-mail to
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>
>
>

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