MaxClients setting error handling during Apache operation

Apache in the process of running, the error log appears as follows

[ERROR] Server reached maxclients setting, consider raising the maxclients setting

Check the Apache version

[[email protected] logs]# httpd-vserver version:apache/2.2.31 (Unix) Server Built:may 26 2016 01:33:18

To view the Apache working model, you can see the PREFORK.C

[[Email protected] logs]# apachectl -lcompiled in modules:  core.c   mod_authn_file.c  mod_authn_dbm.c  mod_authn_anon.c  mod_authn_dbd.c   mod_authn_default.c  mod_authz_host.c  mod_authz_groupfile.c  mod_ authz_user.c  mod_authz_dbm.c  mod_authz_owner.c  mod_authz_default.c   mod_auth_basic.c  mod_auth_digest.c  mod_dbd.c  mod_dumpio.c   Mod_reqtimeout.c  mod_ext_filter.c  mod_include.c  mod_filter.c  mod_ Substitute.c  mod_deflate.c  mod_log_config.c  mod_logio.c  mod_env.c   mod_expires.c  mod_headers.c  mod_ident.c  mod_setenvif.c   mod_version.c  prefork.c  http_core.c  mod_mime.c  mod_dav.c   mod_status.c &nbsP;mod_autoindex.c  mod_asis.c  mod_info.c  mod_cgi.c  mod_dav_fs.c   mod_vhost_alias.c  mod_negotiation.c  mod_dir.c  mod_imagemap.c   mod_actions.c  mod_speling.c  mod_userdir.c  mod_alias.c   Mod_rewrite.c  mod_so.c

Apache maxclient settings are conf/extra/httpd-mpm.conf in the Apache working directory

The default settings for the Prefork model are as follows, with the maximum number of connections being only 150, far from meeting production requirements

<ifmodule mpm_prefork_module> startservers 5 minspareservers 5 maxspareservers Ten Ma Xclients Maxrequestsperchild 0</ifmodule>

Startservers: Number of initial boot processes

Minspareservers: Minimum number of idle processes

Maxspareservers: Maximum number of idle processes

MaxClients: Maximum number of client connections

Maxrequestsperchild: The number of requests per child process that can be processed, 0 for unlimited

The changes are as follows:

<ifmodule mpm_prefork_module> startservers minspareservers maxspareservers 15 Serverlimit maxclients Maxrequestsperchild 10000</ifmodule>

In the case of a worker model, the initial setting is:

<ifmodule mpm_worker_module> startservers 2 maxclients minsparethreads Max Sparethreads Threadsperchild Maxrequestsperchild 0</ifmodule>

Can be modified as follows:

<ifmodule mpm_worker_module> threadlimit serverlimit startservers 3 Maxclien     TS-Minsparethreads-maxsparethreads-Threadsperchild-Maxrequestsperchild 0</ifmodule>

MaxClients must be an integral multiple of threadsperchild, threadsperchild*serverlimit must be greater than maxclients

Restart Apache Service after modification is complete

This article is from the "Sunny" blog, make sure to keep this source http://francis198.blog.51cto.com/720670/1852562

Apache reports maxclients setting error handling during Operation