Where has all my memory gone!

Hi!

I try for several weeks to tune my rt box. The problem is
that after 1 or 2 days all the memory has been eaten by rt
and the programm start to become slow.

I already set the MaxRequestsPerChild to 1.500, but It helps
not really.

My question

1.)is it okay to lower the number for example on 500?
2.)I see about 500 lines per day
[Tue Jul 23 21:59:57 2002] [notice] child pid 28642 exit signal
Segmentation fault (11)
Is it normal? Is it related to my memory problem?

bye!

Sven Sternberger Tel.: +49 (0) 40 8998 4397
Desy Email: sven.sternberger@desy.de
Notkestr. 85
D-22607 Hamburg

Sven Sternberger wrote:

Hi!

I try for several weeks to tune my rt box. The problem is
that after 1 or 2 days all the memory has been eaten by rt
and the programm start to become slow.

Are You sure it is RT that eats Your memory? I haven’t seen memory contention
on my RT box, and it is up for 56 days now.

I already set the MaxRequestsPerChild to 1.500, but It helps
not really.

My question

1.)is it okay to lower the number for example on 500?
2.)I see about 500 lines per day
[Tue Jul 23 21:59:57 2002] [notice] child pid 28642 exit signal
Segmentation fault (11)
Is it normal? Is it related to my memory problem?

This is a known issue with some setups of apache wit mod_perl as a dynamically
shared object.
The usual solution is to build apache with mod_perl compiled in statically. I
run a stock apache/mod_perl setup on redhat 7.2 for RT without any problems,
but this is a question of load.

Regards,
Harald

Harald WagenerAn der Alster 4220099 Hamburg*http://www.fcb-wilkens.com

hwagener.vcf (202 Bytes)

I was tinkering around with this number and ended up setting it to 100,
just because occasionally mod_perl slows everything to a crawl. I may
raise it to 500 to see what happens when I have time to test, as
lowering to 100 was a quick and dirty solution. I think originally it
was at 10,000, and that was way too much, because it definitely slows to
a crawl (tons of complaints after a few days of running it).

I believe the seg fault has something to do with compiling mod_perl. I
don’t remember if it is a dynamic vs. static issue or what, because it’s
been a year since I dealt with it. Maybe someone else can chime in, but
I believe it’s in the mail archives as well.

Ayan Kayal
Hmedicine.com, Inc.

I try for several weeks to tune my rt box. The problem is
that after 1 or 2 days all the memory has been eaten by rt
and the programm start to become slow.

What version of Mason are you using?

-dave

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