[users@httpd] Apache2 mpm on Linux

["Porter, Mark" <Ma...@LibertyMutual.com>]

Hi Everyone,

I'm working to get 2.0.43 on Red Hat 7.3 (2.4.18-3) running with the
worker mpm, with the idea that it would run as a multi-threaded process,
as opposed to a bunch of single-threaded ones.

However, after compiling and starting the server, I'm seeing the server
run in what appears to be pre-fork mode. That is, I see roughly the same
number of child processes as I would expect there to be available
threads from an unloaded server.

The details:

configure --prefix=<path> --with-mpm=worker
make, etc.

[root@server1 bin]# ./apachectl -l
Compiled in modules:
  core.c
  mod_access.c
  mod_auth.c
  mod_include.c
  mod_log_config.c
  mod_env.c
  mod_setenvif.c
  worker.c
  http_core.c
  mod_mime.c
  mod_status.c
  mod_autoindex.c
  mod_asis.c
  mod_cgid.c
  mod_negotiation.c
  mod_dir.c
  mod_imap.c
  mod_actions.c
  mod_userdir.c
  mod_alias.c
  mod_so.c

I'm using the default config:

<IfModule worker.c>
StartServers         2
MaxClients         150
MinSpareThreads     25
MaxSpareThreads     75
ThreadsPerChild     25
MaxRequestsPerChild  0
</IfModule>

[root@server1 conf]# ps -ef | grep [a]pache | wc -l
     58

There's one process owned by root, and 57 children spawned from that
pid.

Has anyone else ever seen this? It seems to work correctly on Solaris.

MP

---------------------------------------------------------------------
The official User-To-User support forum of the Apache HTTP Server Project.
See <URL:http://httpd.apache.org/userslist.html> for more info.
To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
   "   from the digest: users-digest-unsubscribe@httpd.apache.org
For additional commands, e-mail: users-help@httpd.apache.org

Re: [users@httpd] Apache2 mpm on Linux

[André Malo <nd...@perlig.de>]

* Porter, Mark wrote:

> I'm working to get 2.0.43 on Red Hat 7.3 (2.4.18-3) running

[You should update however, 2.0.47 is the current release]

> configure --prefix=<path> --with-mpm=worker
> [root@server1 conf]# ps -ef | grep [a]pache | wc -l
>      58
> 
> There's one process owned by root, and 57 children spawned from that
> pid.
> 
> Has anyone else ever seen this? It seems to work correctly on Solaris.

That is a linux issue. On linux, threads are more or less the same as
processes (currently) and therefore appear in the process table as processes.
The ps output is correct.

nd

---------------------------------------------------------------------
The official User-To-User support forum of the Apache HTTP Server Project.
See <URL:http://httpd.apache.org/userslist.html> for more info.
To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
   "   from the digest: users-digest-unsubscribe@httpd.apache.org
For additional commands, e-mail: users-help@httpd.apache.org