High load on ispcp server

[macbishop]

psygarden Wrote:According to this changelog that bug has been fixed in php 5.2.5

http://www.php.net/ChangeLog-5.php

Can anyone confirm this? I'm going to test now...

The bug was fixed in 5.2.2 version (03-May-2007)

Fixed bug #40286 (PHP fastcgi with PHP_FCGI_CHILDREN don't kill children when parent is killed). (Dmitry)

[psygarden]

macbishop Wrote:

psygarden Wrote:According to this changelog that bug has been fixed in php 5.2.5

http://www.php.net/ChangeLog-5.php

Can anyone confirm this? I'm going to test now...

The bug was fixed in 5.2.2 version (03-May-2007)

Fixed bug #40286 (PHP fastcgi with PHP_FCGI_CHILDREN don't kill children when parent is killed). (Dmitry)

upgrading from php 5.2.0 to 5.2.5 has this result on my cpu loads:

   
The last bit of the graph shows the cpu usage while the server is under a normal load with all sites active.

So it turns out that all that one needs to do on a debian system is update the /etc/apt/sources.list to include the "testing" versions of php5

Quote:#Old sources that came with the default install of my hosting company:
#deb http://ftp.freenet.de/debian/ etch main non-free contrib
#deb-src http://ftp.freenet.de/debian/ etch main non-free contrib

#new sources including all versions.
deb http://packages.dotdeb.org etch all
deb-src http://packages.dotdeb.org etch all

Then run

#apt-get update
and
#apt-get upgrade

After installation is complete you can kill all the stuck child processes using

php4:

Quote:/usr/bin/killall -HUP php-cgi

php5:

Quote:/usr/bin/killall -HUP php5-cgi

[rbtux]

you have a little typo there:

Quote:2.5.0 to 2.5.2

[BioALIEN]

psygarden: interesting find, your CPU has really dropped a lot since the php upgrade. Can you please keep us posted after you run this for a week and report back?

Thanks

[psygarden]

BioALIEN Wrote:psygarden: interesting find, your CPU has really dropped a lot since the php upgrade. Can you please keep us posted after you run this for a week and report back?

Thanks

I think it's already conclusive, my server hasn't had any problems since i upgraded to php 5.2.5 (compared to continuous high load on 5.2.0)

here's an updated graphic of my cpu usage (the current value might seem very low, but that's because it's a brand new dual core amd 5800+ cpu... it should be that way )

   
(Click to view larger image)

[Kika]

I had this problem too. I upgraded my php to a dotdeb 5.2.5 (http://www.dotdeb.org/) and my system is working fine.

[raphael]

Quote:psygarden: interesting find, your CPU has really dropped a lot since the php upgrade. Can you please keep us posted after you run this for a week and report back?

the thing is that the bug was fixed in 5.2.5; I've tried to get a diff from sapis/cgi we could ship in +etch11 but it seems to be too intrusive. I'll anyway build some of those packages for you people to test and report. Hopefully this way it will be fixed by etch r3

[BioALIEN]

raphael, any news on your last post? I would like to resolve this, and I'm willing to give your packages a try.

Right now I'm on PHP 5.2.0-8+etch10 and after a few days, the server load really shoots through the roof very similar to psygarden's screenshot. After a full server restart, everything falls back down to a reasonable level then the process repeats after 10 days or so.

[Kika]

I upgraded the php, but i use a script witch restart the webserver when the load is higher than 1:

Code:

#!/bin/bash
L05="$(uptime|awk '{print $(NF-2)}'|cut -d. -f1)"
if test $L05 -gt 1
then
killall -9 php5-cgi
/etc/init.d/apache2 restart
fi

Insert this line to the crontab:
* * * * * root /root/load.sh

[BeNe]

And this does make sense ?
Well, it is not a really fix and when a other app create the high load averge ?
Your Apache will restart and restart and restart.

Greez BeNe