It looks like the issue is CentOS.

1) Try to switch from mod_python to mod_wsgi (or vice versa)
2) Turn of memcache check is issue gone (switch to file cache)

I belive this is good reason to send ticket to CentOS team.


On Fri, Oct 15, 2010 at 4:01 PM, bugfree <o3j5h...@gmail.com> wrote:
> Same issue here.
> I'm on centos with RB 1.5.
> My source files can be as big as 20Mb which I didn't really expect to
> be an issue. turns out viewDiff can take several minutes.
>
> but performance aside I think I'm looking at some memory leakage.
>
> after running it for a few days while no user is connected running
>
> ps -eo pmem,pcpu,rss,vsize,args | sort -k 1 -r | less
>
> is giving me
> --------------------------------
> 16.5  0.0 343748 370000 /usr/sbin/apache2 -D DEFAULT_VHOST -D INFO -D
> SSL -D SSL_DEFAULT_VHOST -D LANGUAGE -D PYTHON -d /usr/lib/apache2 -f /
> etc/apache2/httpd.conf -k start
> 16.0  0.0 331968 362408 /usr/sbin/apache2 -D DEFAULT_VHOST -D INFO -D
> SSL -D SSL_DEFAULT_VHOST -D LANGUAGE -D PYTHON -d /usr/lib/apache2 -f /
> etc/apache2/httpd.conf -k start
> 15.8  0.0 327960 355388 /usr/sbin/apache2 -D DEFAULT_VHOST -D INFO -D
> SSL -D SSL_DEFAULT_VHOST -D LANGUAGE -D PYTHON -d /usr/lib/apache2 -f /
> etc/apache2/httpd.conf -k start
> 15.4  0.0 321124 371132 /usr/sbin/apache2 -D DEFAULT_VHOST -D INFO -D
> SSL -D SSL_DEFAULT_VHOST -D LANGUAGE -D PYTHON -d /usr/lib/apache2 -f /
> etc/apache2/httpd.conf -k start
> 10.4  0.0 216932 363664 /usr/sbin/apache2 -D DEFAULT_VHOST -D INFO -D
> SSL -D SSL_DEFAULT_VHOST -D LANGUAGE -D PYTHON -d /usr/lib/apache2 -f /
> etc/apache2/httpd.conf -k start
>  6.4  0.0 134208 372964 /usr/sbin/apache2 -D DEFAULT_VHOST -D INFO -D
> SSL -D SSL_DEFAULT_VHOST -D LANGUAGE -D PYTHON -d /usr/lib/apache2 -f /
> etc/apache2/httpd.conf -k start
>  4.1  0.0 85308 203736 /usr/sbin/apache2 -D DEFAULT_VHOST -D INFO -D
> SSL -D SSL_DEFAULT_VHOST -D LANGUAGE -D PYTHON -d /usr/lib/apache2 -f /
> etc/apache2/httpd.conf -k start
>  1.8  0.0 38676 119912 /usr/bin/memcached -d -p 11211 -U 11211 -l
> 127.0.0.1 -m 512 -c 1024 -u memcached -P /var/run/memcached/
> memcached-11211.pid -r -I 4
>  0.8  0.0 18592  50876 /usr/sbin/apache2 -D DEFAULT_VHOST -D INFO -D
> SSL -D SSL_DEFAULT_VHOST -D LANGUAGE -D PYTHON -d /usr/lib/apache2 -f /
> etc/apache2/httpd.conf -k start
>  0.7  0.0 15656 362552 /usr/sbin/apache2 -D DEFAULT_VHOST -D INFO -D
> SSL -D SSL_DEFAULT_VHOST -D LANGUAGE -D PYTHON -d /usr/lib/apache2 -f /
> etc/apache2/httpd.conf -k start
>  0.1  0.0  3884 242392 /usr/sbin/mysqld --defaults-file=/etc/mysql/
> my.cnf --basedir=/usr --datadir=/export/mysql --pid-file=/var/run/
> mysqld/mysqld.pid --socket=/var/run/mysqld/mysqld.sock
>  0.0  0.0  1196   5484 /usr/sbin/vmtoolsd
>  0.0  0.0  1136   7360 sshd: r...@pts/1
>  0.0  0.0   944   3004 -bash
> --------------------------------
>
> restarting apache the top memory usage goes back to being memcahed
> while apache moves to 2nd place with
> 0.2  1.2  5680  11780 /usr/sbin/apache2 -D DEFAULT_VHOST -D INFO -D
> SSL -D SSL_DEFAULT_VHOST -D LANGUAGE -D PYTHON -d /usr/lib/apache2 -f /
> etc/apache2/httpd.conf -k start
>
> I'm going to configure apache so that each process is restarted after
> just a few requests as a short term workaround.
>
> can anyone help me out identify where the issue is?
>
> TIA
>
>
>
> On Oct 15, 9:48 am, mohan kumar <mohan...@gmail.com> wrote:
>> Oh ok.
>>
>> On Fri, Oct 15, 2010 at 1:08 PM, Thilo-Alexander Ginkel 
>> <th...@ginkel.com>wrote:
>>
>> > On Fri, Oct 15, 2010 at 09:22, Mohan <mohan...@gmail.com> wrote:
>> > > Only RB is running on the server.
>>
>> > > when i did 'ps' it shows the following apache instances.
>>
>> > > [r...@rboard log]# ps -ef | grep httpd
>> > > apache    1279 22272  0 01:51 ?        00:00:03 /usr/sbin/httpd
>> > > apache   12843 22272  0 07:29 ?        00:00:00 /usr/sbin/httpd
>> > > [...]
>> > > apache   22453 22272  0 Oct14 ?        00:00:04 /usr/sbin/httpd
>>
>> > > just thinking on Prefork model.
>>
>> > You're already running prefork...
>>
>> > Regards,
>> > Thilo
>>
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