Re: [Bigsister-general] Performance problem

[Rob Verduijn <suppressed>]

Hi there,

I've had the same kinda problems with bs 1.02 and I did the following to
fix them.

I asume you finetuned your box, ie no deamons runnning that you don't
need, no heavy X apps (or better yet no X).

split your uxmon and uxmon-asroot files up this causes bigsister to
spread out the tests and so lessen the load a bit.

ie create multiple uxmon and uxmon-asroot files
uxmon
uxmon.1
uxmon.2
uxmon.3
uxmon-asroot
uxmon-asroot.1
uxmon-asroot.2
uxmon-asroot.3
etc etc

make sure the tests are spread out evenly over these files
I use a script that generates these files for me, since I got over 400
sites to check and do not wish to keep these things up to date by
hand.(I now have 76 uxmon-asroot files)
I use no more than 28 ping tests per file.
do not forget the DESCR entry for each system in the file where the
system is mentioned.
(that one cost me some time)

Hope that helps
Rob

p.s.
This one is may be a bit farfetched...
Question, are those 20 machines behind a linux router ?
(ie a linux box that does ip-nat and maybe doubles as a firewall)
in that case check the logs of that box for ip_conntrack table full
entrys, because that means packets are being dropped by that box,those
caused some purples with me to.



Op ma, 27-02-2006 te 15:15 +0100, schreef Paolo Asioli:
> Hello,
> 
> I've just upgraded to 1.02. My last install was 0.97 and I had the 
> problem of many purple lights (random) which I tought were for the poor 
> hardware it was running on (a PC acting as a server). Now I've installed 
> it from deb packages on a Debian server (a real server, this time) and I 
> still have the same problem.
> 
> I'm monitoring more or less 150 nodes and 20 of them are always purple.
> 
> Any idea ? I've seen someone that had the same problem but no followup 
> on the matter.
> 
> If this helps I'll post the configuration files, please just tell me 
> which of the would be useful.
> 
> Big Sister is a very nice piece of software, but I'd really like to send 
> those purple light away.
> 
> Thank you very much.
> 
> Best regards,
>     Paolo
> 
> 
> 
> 
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