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Re: [Bigsister-general] bigsister performance


Hi again,

I've managed to be looking at a top when our wan provider did his thing
again (lucky me......).
It seems there are an awfull lot of bsmon processes that took a serious
bite out of the system resources.
Swap file activity was soring and response at the command line took a
dive.

I did the echo to the proc file system before this happened.
echo 1 > /proc/sys/vm/overcommit_memory

It looked promising but after a while the steady climb in consumed
system resources overtook and the system stopped again.

I told bigsister to shutdown when swap file usage passed 650 MB
Did not work, I managed to give it an init 6 it after 20 minutes , and a
reset after 20 more :(

How do I tell bigsister not to raise alarms for ping tests (besides the
obvious fact of removing the ping tests completely)

Regards.
Rob

Op di, 18-10-2005 te 22:57 +0200, schreef Thomas Aeby:
> On Tue, 2005-10-18 at 19:17 +0200, Thomas Aeby wrote:
> > On Tue, 2005-10-18 at 17:34 +0200, Rob Verduijn wrote:
> > > This is a bit difficult to answer since the console stops responding, I
> > > will keep an eye on bs to see what memory and/or resources are used.
> 
> I've been curious and have just tried out what happens if Big Sister 
> tries to send alert messages for 500 machines.
> 
> That has really been funny - it does not take too many copies of
> sendmail to use up 1.5GB of virtual memory and as soon as it is
> used up the machine (Debian Sarge, Kernel 2.6.9, overcommit_memory
> set to 0) totally locks. Oh :-)
> 
> I learn from this that it is not a good idea to try to send a few
> hundred mail messages in a few seconds ...
> 
> Best regards,
> Tom



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