Limit the concurrency of each virtual host under apache

Download module: http: wwwnowhere-landorgprogst_limit-04targz official site: http: wwwnowhere-landorgprogramsmod_vhost_lim

Download module:

Http://www.nowhere-land.org/prog... st_limit-0.4.tar.gz

Http://www.nowhere-land.org/programs/mod_vhost_limit/

Installation:

Apxs-c mod_vhost_limit.c-o/path/to/libexec/mod_vhost_limit.so

Add the following content to httpd. conf:

LoadModule vhost_limit_module libexec/mod_vhost_limit.so

AddModule mod_vhost_limit.c

Configuration:

MaxClients 150

ExtendedStatus On

NameVirtualHost *

ServerName server1

DocumentRoot/some/where/1

MaxVhostClients 100

ServerName server2

DocumentRoot/some/where/2

MaxVhostClients 30

ServerName server3

DocumentRoot/some/where/3

Specifically, server1 is limited to 100 concurrent threads.

Server2 is limited to 30 concurrent threads.

Server3 is not restricted.

Note: ExtendedStatus On of mod_status is required !!

If the maximum number of concurrent threads is exceeded, the Error 503 will occur on the client:

Service Temporarily Unavailable

The server is temporarily unable to service your request due to maintenance downtime or capacity problems. Please try again later.

-------------------------------------------------------------------------------

Apache/1.3.27 Server at server1 Port 80

The error message similar to the following will be displayed in error_log:

[Mon Jun 23 15:22:24 2003] [error] client access to server1 deferred, MaxVhostClients 100 exceeded

Hope to be useful to everyone !!