Hi All,

I have a high traffic mod_perl2 web server (40 requests/second and all
are dynamic data - no images or static html) and I have a slow memory
leak in mod_perl2. I haven't tracked the leak down yet, but to deal
with it I have set MaxRequestsPerChild to 5000. I'm using the worker
MPM with the following config:

ServerLimit 5
MaxClients 250
StartServers 5
MinSpareThreads 250
MaxSpareThreads 250
ThreadsPerChild 50

Since I set MaxRequestsPerChild to 5000 I noticed that the number of
httpd.worker processes at some point doubles from 5 to 10. It's as if
the old processes aren't being shut down properly once they've served
their 5000 requests.

I have mod_status installed and it still only shows me 5 processes
with their respective threads even though 10 appear to be running.

ps shows the 10 processes and that only half of them have their CPU
time increasing - the others don't seem to be doing any work. Also, it
seems that the half that are working are fairly new processes and are
being killed and re-spawned in accordance with MaxRequestsPerChild
and the others are just sitting there.

I'm running Fedora Core 6 64bit with the standard RPM distribution of
mod_perl and Apache/2.2.4.

The binary httpd.worker has the following statically compiled in:
core.c
worker.c
http_core.c
mod_so.c

I have the following DSO modules in my config:

LoadModule log_config_module modules/mod_log_config.so
LoadModule expires_module modules/mod_expires.so
LoadModule deflate_module modules/mod_deflate.so
LoadModule mime_module modules/mod_mime.so
LoadModule status_module modules/mod_status.so
LoadModule alias_module modules/mod_alias.so
LoadModule rewrite_module modules/mod_rewrite.so
LoadModule authn_file_module modules/mod_authn_file.so
LoadModule auth_basic_module modules/mod_auth_basic.so
LoadModule authz_groupfile_module modules/mod_authz_groupfile.so
LoadModule authn_default_module modules/mod_authn_default.so
LoadModule authz_host_module modules/mod_authz_host.so
LoadModule authz_user_module modules/mod_authz_user.so
LoadModule authz_default_module modules/mod_authz_default.so
LoadModule perl_module modules/mod_perl.so
LoadModule apreq_module modules/mod_apreq2.so

Any help or suggestions would be much appreciated.

Regards,

Mark.