[request-tracker-maintainers] Bug#649864: request-tracker4: modperl apache2 config leads to memory full

[Olivier Berger]

Source: request-tracker4
Version: 4.0.4-1
Severity: normal

Hi.

On a 2Gb VM, I'm running a rebuilt package of RT 4 on a squeeze + backports system.

I configured the apache config to use mod_perl.

The memory used by the apache process is reported like this in top :
  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+   
18864 www-data  20   0  827m 345m 4428 S  0.0 17.2   0:08.15 apache2
18836 www-data  20   0  828m 345m 4388 S  0.0 17.2   0:08.64 apache2
18828 root      20   0  517m 322m 6124 S  0.0 16.1   0:03.40 apache2
18834 www-data  20   0  516m 316m  692 S  0.0 15.8   0:00.00 apache2
27804 mysql     20   0  173m  39m 7568 S  0.0  2.0   0:27.58 mysqld

I fear there's a problem with the memory management of RT, or RT with mod_perl.

I used to run RT 3.8 from squeeze before, and had experienced problems with memory full and actions not being executed because of memory exhaustion reported in the logs.

I tried to upgrade in order to see if things would be improving with the next version.

Is this a known problem ?

Thanks in advance.

Best regards,

-- System Information:
Debian Release: wheezy/sid
  APT prefers testing
  APT policy: (900, 'testing'), (300, 'stable')
Architecture: i386 (i686)

Kernel: Linux 3.1.0-1-686-pae (SMP w/2 CPU cores)
Locale: LANG=fr_FR.utf8, LC_CTYPE=fr_FR.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash