Apache-2.4

centos 7中的apache不以mpm事件開頭

  • February 25, 2017

嗨,我嘗試從 prefork 切換到 apache MPM 事件,如下所示:

vim /etc/httpd/conf.modules.d/00-mpm.conf

# Select the MPM module which should be used by uncommenting exactly
# one of the following LoadModule lines:

# prefork MPM: Implements a non-threaded, pre-forking web server
# See: http://httpd.apache.org/docs/2.4/mod/prefork.html
LoadModule mpm_prefork_module modules/mod_mpm_prefork.so

# worker MPM: Multi-Processing Module implementing a hybrid
# multi-threaded multi-process web server
# See: http://httpd.apache.org/docs/2.4/mod/worker.html
#
#LoadModule mpm_worker_module modules/mod_mpm_worker.so

# event MPM: A variant of the worker MPM with the goal of consuming
# threads only for connections with active processing
# See: http://httpd.apache.org/docs/2.4/mod/event.html
#
#LoadModule mpm_event_module modules/mod_mpm_event.so

切換到

# Select the MPM module which should be used by uncommenting exactly
# one of the following LoadModule lines:

# prefork MPM: Implements a non-threaded, pre-forking web server
# See: http://httpd.apache.org/docs/2.4/mod/prefork.html
#LoadModule mpm_prefork_module modules/mod_mpm_prefork.so

# worker MPM: Multi-Processing Module implementing a hybrid
# multi-threaded multi-process web server
# See: http://httpd.apache.org/docs/2.4/mod/worker.html
#
#LoadModule mpm_worker_module modules/mod_mpm_worker.so

# event MPM: A variant of the worker MPM with the goal of consuming
# threads only for connections with active processing
# See: http://httpd.apache.org/docs/2.4/mod/event.html
#

LoadModule mpm_event_module modules/mod_mpm_event.so

並且 apache 不會啟動:

Job for httpd.service failed because the control process exited with error code. See "systemctl status httpd.service" and "journalctl -xe" for details.

以下是相關日誌(重啟失敗後我切換回並重新啟動):

Feb 25 05:48:19 hostname9727 httpd[20029]: [Sat Feb 25 05:48:19.831460 2017] [:crit] [pid 20029:tid 139667929794688] Apache is running a threaded MPM, but your PHP Module is not compiled to be threadsafe.  You need to recompile PHP.
Feb 25 05:48:19 hostname9727 httpd[20029]: AH00013: Pre-configuration failed
Feb 25 05:48:19 hostname9727 systemd[1]: httpd.service: main process exited, code=exited, status=1/FAILURE
Feb 25 05:48:19 hostname9727 kill[20031]: kill: cannot find process ""
Feb 25 05:48:19 hostname9727 systemd[1]: httpd.service: control process exited, code=exited status=1
Feb 25 05:48:19 hostname9727 systemd[1]: Failed to start The Apache HTTP Server.
Feb 25 05:48:19 hostname9727 systemd[1]: Unit httpd.service entered failed state.
Feb 25 05:48:19 hostname9727 systemd[1]: httpd.service failed.

systemctl status httpd.service 和 journalctl -xe 沒有相關日誌(沒有來自同一日期的日誌)。

編輯

這是我的httpd.conf:

#
# This is the main Apache HTTP server configuration file.  It contains the
# configuration directives that give the server its instructions.
# See <URL:http://httpd.apache.org/docs/2.4/> for detailed information.
# In particular, see 
# <URL:http://httpd.apache.org/docs/2.4/mod/directives.html>
# for a discussion of each configuration directive.
#
# Do NOT simply read the instructions in here without understanding
# what they do.  They're here only as hints or reminders.  If you are unsure
# consult the online docs. You have been warned.  
#
# Configuration and logfile names: If the filenames you specify for many
# of the server's control files begin with "/" (or "drive:/" for Win32), the
# server will use that explicit path.  If the filenames do *not* begin
# with "/", the value of ServerRoot is prepended -- so 'log/access_log'
# with ServerRoot set to '/www' will be interpreted by the
# server as '/www/log/access_log', where as '/log/access_log' will be
# interpreted as '/log/access_log'.

#
# ServerRoot: The top of the directory tree under which the server's
# configuration, error, and log files are kept.
#
# Do not add a slash at the end of the directory path.  If you point
# ServerRoot at a non-local disk, be sure to specify a local disk on the
# Mutex directive, if file-based mutexes are used.  If you wish to share the
# same ServerRoot for multiple httpd daemons, you will need to change at
# least PidFile.
#
ServerRoot "/etc/httpd"

#
# Listen: Allows you to bind Apache to specific IP addresses and/or
# ports, instead of the default. See also the <VirtualHost>
# directive.
#
# Change this to Listen on specific IP addresses as shown below to 
# prevent Apache from glomming onto all bound IP addresses.
#
#Listen 12.34.56.78:80
Listen 80

#
# Dynamic Shared Object (DSO) Support
#
# To be able to use the functionality of a module which was built as a DSO you
# have to place corresponding `LoadModule' lines at this location so the
# directives contained in it are actually available _before_ they are used.
# Statically compiled modules (those listed by `httpd -l') do not need
# to be loaded here.
#
# Example:
# LoadModule foo_module modules/mod_foo.so
#
Include conf.modules.d/*.conf

#
# If you wish httpd to run as a different user or group, you must run
# httpd as root initially and it will switch.  
#
# User/Group: The name (or #number) of the user/group to run httpd as.
# It is usually good practice to create a dedicated user and group for
# running httpd, as with most system services.
#
User apache
Group apache

# 'Main' server configuration
#
# The directives in this section set up the values used by the 'main'
# server, which responds to any requests that aren't handled by a
# <VirtualHost> definition.  These values also provide defaults for
# any <VirtualHost> containers you may define later in the file.
#
# All of these directives may appear inside <VirtualHost> containers,
# in which case these default settings will be overridden for the
# virtual host being defined.
#

#
# ServerAdmin: Your address, where problems with the server should be
# e-mailed.  This address appears on some server-generated pages, such
# as error documents.  e.g. admin@your-domain.com
#
ServerAdmin root@localhost

#
# ServerName gives the name and port that the server uses to identify itself.
# This can often be determined automatically, but we recommend you specify
# it explicitly to prevent problems during startup.
#
# If your host doesn't have a registered DNS name, enter its IP address here.
#
#ServerName www.example.com:80

#
# Deny access to the entirety of your server's filesystem. You must
# explicitly permit access to web content directories in other 
# <Directory> blocks below.
#
<Directory />
   AllowOverride none
   Require all denied
</Directory>

#
# Note that from this point forward you must specifically allow
# particular features to be enabled - so if something's not working as
# you might expect, make sure that you have specifically enabled it
# below.
#

#
# DocumentRoot: The directory out of which you will serve your
# documents. By default, all requests are taken from this directory, but
# symbolic links and aliases may be used to point to other locations.
#
DocumentRoot "/var/www/html"

#
# Relax access to content within /var/www.
#
<Directory "/var/www">
   AllowOverride all
   # Allow open access:
   Require all granted
</Directory>

# Further relax access to the default document root:
<Directory "/var/www/html">
   #
   # Possible values for the Options directive are "None", "All",
   # or any combination of:
   #   Indexes Includes FollowSymLinks SymLinksifOwnerMatch ExecCGI MultiViews
   #
   # Note that "MultiViews" must be named *explicitly* --- "Options All"
   # doesn't give it to you.
   #
   # The Options directive is both complicated and important.  Please see
   # http://httpd.apache.org/docs/2.4/mod/core.html#options
   # for more information.
   #
   Options Indexes FollowSymLinks

   #
   # AllowOverride controls what directives may be placed in .htaccess files.
   # It can be "All", "None", or any combination of the keywords:
   #   Options FileInfo AuthConfig Limit
   #
   AllowOverride None

   #
   # Controls who can get stuff from this server.
   #
   Require all granted
</Directory>

#
# DirectoryIndex: sets the file that Apache will serve if a directory
# is requested.
#
<IfModule dir_module>
   DirectoryIndex index.html
</IfModule>

#
# The following lines prevent .htaccess and .htpasswd files from being 
# viewed by Web clients. 
#
<Files ".ht*">
   Require all denied
</Files>

#
# ErrorLog: The location of the error log file.
# If you do not specify an ErrorLog directive within a <VirtualHost>
# container, error messages relating to that virtual host will be
# logged here.  If you *do* define an error logfile for a <VirtualHost>
# container, that host's errors will be logged there and not here.
#
ErrorLog "logs/error_log"

#
# LogLevel: Control the number of messages logged to the error_log.
# Possible values include: debug, info, notice, warn, error, crit,
# alert, emerg.
#
LogLevel warn

<IfModule log_config_module>
   #
   # The following directives define some format nicknames for use with
   # a CustomLog directive (see below).
   #
   LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined
   LogFormat "%h %l %u %t \"%r\" %>s %b" common

   <IfModule logio_module>
     # You need to enable mod_logio.c to use %I and %O
     LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\" %I %O" combinedio
   </IfModule>

   #
   # The location and format of the access logfile (Common Logfile Format).
   # If you do not define any access logfiles within a <VirtualHost>
   # container, they will be logged here.  Contrariwise, if you *do*
   # define per-<VirtualHost> access logfiles, transactions will be
   # logged therein and *not* in this file.
   #
   #CustomLog "logs/access_log" common

   #
   # If you prefer a logfile with access, agent, and referer information
   # (Combined Logfile Format) you can use the following directive.
   #
   CustomLog "logs/access_log" combined
</IfModule>

<IfModule alias_module>
   #
   # Redirect: Allows you to tell clients about documents that used to 
   # exist in your server's namespace, but do not anymore. The client 
   # will make a new request for the document at its new location.
   # Example:
   # Redirect permanent /foo http://www.example.com/bar

   #
   # Alias: Maps web paths into filesystem paths and is used to
   # access content that does not live under the DocumentRoot.
   # Example:
   # Alias /webpath /full/filesystem/path
   #
   # If you include a trailing / on /webpath then the server will
   # require it to be present in the URL.  You will also likely
   # need to provide a <Directory> section to allow access to
   # the filesystem path.

   #
   # ScriptAlias: This controls which directories contain server scripts. 
   # ScriptAliases are essentially the same as Aliases, except that
   # documents in the target directory are treated as applications and
   # run by the server when requested rather than as documents sent to the
   # client.  The same rules about trailing "/" apply to ScriptAlias
   # directives as to Alias.
   #
   ScriptAlias /cgi-bin/ "/var/www/cgi-bin/"

</IfModule>

#
# "/var/www/cgi-bin" should be changed to whatever your ScriptAliased
# CGI directory exists, if you have that configured.
#
<Directory "/var/www/cgi-bin">
   AllowOverride None
   Options None
   Require all granted
</Directory>

<IfModule mime_module>
   #
   # TypesConfig points to the file containing the list of mappings from
   # filename extension to MIME-type.
   #
   TypesConfig /etc/mime.types

   #
   # AddType allows you to add to or override the MIME configuration
   # file specified in TypesConfig for specific file types.
   #
   #AddType application/x-gzip .tgz
   #
   # AddEncoding allows you to have certain browsers uncompress
   # information on the fly. Note: Not all browsers support this.
   #
   #AddEncoding x-compress .Z
   #AddEncoding x-gzip .gz .tgz
   #
   # If the AddEncoding directives above are commented-out, then you
   # probably should define those extensions to indicate media types:
   #
   AddType application/x-compress .Z
   AddType application/x-gzip .gz .tgz

   #
   # AddHandler allows you to map certain file extensions to "handlers":
   # actions unrelated to filetype. These can be either built into the server
   # or added with the Action directive (see below)
   #
   # To use CGI scripts outside of ScriptAliased directories:
   # (You will also need to add "ExecCGI" to the "Options" directive.)
   #
   #AddHandler cgi-script .cgi

   # For type maps (negotiated resources):
   #AddHandler type-map var

   #
   # Filters allow you to process content before it is sent to the client.
   #
   # To parse .shtml files for server-side includes (SSI):
   # (You will also need to add "Includes" to the "Options" directive.)
   #
   AddType text/html .shtml
   AddOutputFilter INCLUDES .shtml
</IfModule>

#
# Specify a default charset for all content served; this enables
# interpretation of all content as UTF-8 by default.  To use the 
# default browser choice (ISO-8859-1), or to allow the META tags
# in HTML content to override this choice, comment out this
# directive:
#
AddDefaultCharset UTF-8

<IfModule mime_magic_module>
   #
   # The mod_mime_magic module allows the server to use various hints from the
   # contents of the file itself to determine its type.  The MIMEMagicFile
   # directive tells the module where the hint definitions are located.
   #
   MIMEMagicFile conf/magic
</IfModule>

#
# Customizable error responses come in three flavors:
# 1) plain text 2) local redirects 3) external redirects
#
# Some examples:
#ErrorDocument 500 "The server made a boo boo."
#ErrorDocument 404 /missing.html
#ErrorDocument 404 "/cgi-bin/missing_handler.pl"
#ErrorDocument 402 http://www.example.com/subscription_info.html
#

#
# EnableMMAP and EnableSendfile: On systems that support it, 
# memory-mapping or the sendfile syscall may be used to deliver
# files.  This usually improves server performance, but must
# be turned off when serving from networked-mounted 
# filesystems or if support for these functions is otherwise
# broken on your system.
# Defaults if commented: EnableMMAP On, EnableSendfile Off
#
#EnableMMAP off
EnableSendfile on

# Supplemental configuration
#
# Load config files in the "/etc/httpd/conf.d" directory, if any.
IncludeOptional conf.d/*.conf
LoadModule php5_module /usr/lib64/httpd/modules/libphp5.so
<FilesMatch "\.ph(p[2-6]?|tml)$">
   SetHandler application/x-httpd-php
</FilesMatch>

#eran

#
# Directives to allow use of AWStats as a CGI
#
Alias /awstatsclasses "/root/wwwroot/classes/"
Alias /awstatscss "/root/wwwroot/css/"
Alias /awstatsicons "/root/wwwroot/icon/"
ScriptAlias /awstats/ "/root/wwwroot/cgi-bin/"

#
# This is to permit URL access to scripts/files in AWStats directory.
#
<Directory "/root/wwwroot">
   Options None
   AllowOverride None
   Order allow,deny
   Allow from all
</Directory>

我認為我應該改變:

LoadModule php5_module /usr/lib64/httpd/modules/libphp5.so
<FilesMatch "\.ph(p[2-6]?|tml)$">
   SetHandler application/x-httpd-php
</FilesMatch>

到:

#LoadModule php5_module /usr/lib64/httpd/modules/libphp5.so

LoadModule proxy_module modules/mod_proxy.so
LoadModule proxy_fcgi_module modules/mod_proxy_fcgi.so

<FilesMatch "\.ph(p[2-6]?|tml)$">
   ProxyPassMatch ^/(.*\.php(/.*)?)$ fcgi://127.0.0.1:9000/var/www/html/$1
DirectoryIndex /index.php index.php
</FilesMatch>

原因是這樣的:

2 月 25 日 05:48:19 主機名9727 httpd$$ 20029 $$:$$ Sat Feb 25 05:48:19.831460 2017 $$ $$ :crit $$ $$ pid 20029:tid 139667929794688 $$Apache 正在執行執行緒 MPM,但您的 PHP 模組未編譯為執行緒安全的。您需要重新編譯 PHP。

mod_php 很少或從不使用執行緒安全進行預編譯,因此您不能同時使用 mpm_event 和 mod_php。mpm_event 是一個執行緒化的 mpm。

如果您確實應該使用事件,請遷移您的 php 配置以使用 mod_proxy 和 mod_proxy_fcgi 來反向代理到 php-fpm 伺服器。

有關如何執行此操作的更多資訊:關於 PHP 的 Apache HTTPD Wiki 條目

引用自:https://serverfault.com/questions/834785