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From PGNet Dev <pgnet.dev+apa...@gmail.com>
Subject mod_fcgid (HEAD) spewing "too much processes, please increase FCGID_MAX_APPLICATION"; no documentation/guidance available on FCGID_MAX_APPLICATION
Date Wed, 24 Feb 2010 04:32:00 GMT
I'm running,

httpd2 -V
	Server version: Apache/2.2.14 (Linux/SUSE)
	Server built:   Feb 19 2010 19:43:22
	Server's Module Magic Number: 20051115:23
	Server loaded:  APR 1.3.8, APR-Util 1.3.9
	Compiled using: APR 1.3.8, APR-Util 1.3.9
	Architecture:   32-bit
	Server MPM:     Worker
	  threaded:     yes (fixed thread count)
	    forked:     yes (variable process count)
	Server compiled with....
	 -D APACHE_MPM_DIR="server/mpm/worker"
	 -D APR_HAS_SENDFILE
	 -D APR_HAS_MMAP
	 -D APR_HAVE_IPV6 (IPv4-mapped addresses enabled)
	 -D APR_USE_SYSVSEM_SERIALIZE
	 -D APR_USE_PTHREAD_SERIALIZE
	 -D SINGLE_LISTEN_UNSERIALIZED_ACCEPT
	 -D APR_HAS_OTHER_CHILD
	 -D AP_HAVE_RELIABLE_PIPED_LOGS
	 -D DYNAMIC_MODULE_LIMIT=128
	 -D HTTPD_ROOT="/srv/www"
	 -D SUEXEC_BIN="/usr/sbin/suexec2"
	 -D DEFAULT_PIDLOG="/var/run/httpd2.pid"
	 -D DEFAULT_SCOREBOARD="logs/apache_runtime_status"
	 -D DEFAULT_ERRORLOG="/var/log/apache2/error_log"
	 -D AP_TYPES_CONFIG_FILE="/etc/apache2/mime.types"
	 -D SERVER_CONFIG_FILE="/etc/apache2/httpd.conf"

and,

cd /usr/local/src/mod_fcgid
svn info
	Path: .
	URL: http://svn.apache.org/repos/asf/httpd/mod_fcgid/trunk
	Repository Root: http://svn.apache.org/repos/asf
	Repository UUID: 13f79535-47bb-0310-9956-ffa450edef68
	Revision: 915656
	Node Kind: directory
	Schedule: normal
	Last Changed Author: chrisd
	Last Changed Rev: 909672
	Last Changed Date: 2010-02-12 16:49:29 -0800 (Fri, 12 Feb 2010)

At, e.g., launch of a second app @ server, logs show only,

	==> /var/log/apache2/error_log <==
	[Tue Feb 23 19:56:58 2010] [warn] mod_fcgid: too much processes,
please increase FCGID_MAX_APPLICATION
	[Tue Feb 23 19:56:59 2010] [warn] mod_fcgid: too much processes,
please increase FCGID_MAX_APPLICATION
	[Tue Feb 23 19:57:00 2010] [warn] mod_fcgid: too much processes,
please increase FCGID_MAX_APPLICATION
	[Tue Feb 23 19:57:01 2010] [warn] mod_fcgid: too much processes,
please increase FCGID_MAX_APPLICATION
	[Tue Feb 23 19:57:02 2010] [warn] mod_fcgid: too much processes,
please increase FCGID_MAX_APPLICATION
	[Tue Feb 23 19:57:03 2010] [warn] mod_fcgid: too much processes,
please increase FCGID_MAX_APPLICATION
	[Tue Feb 23 19:57:04 2010] [warn] mod_fcgid: too much processes,
please increase FCGID_MAX_APPLICATION
	[Tue Feb 23 19:57:05 2010] [warn] mod_fcgid: too much processes,
please increase FCGID_MAX_APPLICATION
	[Tue Feb 23 19:57:06 2010] [warn] mod_fcgid: too much processes,
please increase FCGID_MAX_APPLICATION
	[Tue Feb 23 19:57:07 2010] [warn] mod_fcgid: too much processes,
please increase FCGID_MAX_APPLICATION
	[Tue Feb 23 19:57:08 2010] [warn] mod_fcgid: too much processes,
please increase FCGID_MAX_APPLICATION
	[Tue Feb 23 19:57:09 2010] [warn] mod_fcgid: too much processes,
please increase FCGID_MAX_APPLICATION
	[Tue Feb 23 19:57:10 2010] [warn] mod_fcgid: too much processes,
please increase FCGID_MAX_APPLICATION
	[Tue Feb 23 19:57:11 2010] [warn] mod_fcgid: too much processes,
please increase FCGID_MAX_APPLICATION
	[Tue Feb 23 19:57:12 2010] [warn] mod_fcgid: too much processes,
please increase FCGID_MAX_APPLICATION
	...

There's no documentation -- or even mention -- of FCGID_MAX_APPLICATION @,

	http://httpd.apache.org/mod_fcgid/mod/mod_fcgid.html

In source, @ ./modules/fcgid/fcgid_proctbl.h,

	...
	/* Increase it if necessary */
	#define FCGID_MAX_APPLICATION (1024)
	...

Not quite 'explanatory' :-/ So, randomly changing

	-	#define FCGID_MAX_APPLICATION (1024)
	+	#define FCGID_MAX_APPLICATION (4096)

rebuilding, reinstalling, restarting ... makes no difference.  Same error.

What's *is* FCGID_MAX_APPLICATION?
What's the error signifying?
What are the guidelined for setting this paramaeter?
Where can it be set?  Only in src @ build time?

Thanks.

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