我已经使用 Apache 超过 8 年了，但现在我面临一个严重的问题，而且到目前为止我无法在互联网上找到解决方案。
我在带有 Service Pack 1 的 Windows 2008 R2 64 位上运行 Apache 2.2.15 32 位。我一直使用 32 位 Apache，因为我的 CGI 代码（exe 文件）是 32 位的。
该计算机拥有 3.10 GHz 处理器和 16GB RAM。服务器负载始终很低。问题发生时，访问日志显示请求量正常。
自几个月前安装以来，一切都运行正常，但现在我的 Apache 停止工作了，我不知道如何解决这个问题。
我已经好几个星期没有更改任何配置了，但突然 Apache 停止提供 HTTP 响应。所有请求都超时了。实际上，我的网站处于离线状态。
通过使用 Windows 事件查看器，我发现了 Apache 停止工作时的错误日志。它是错误事件：
Log Name: Application
Source: Application Error
Date: 6/28/2016 8:08:33 PM
Event ID: 1000
Task Category: (100)
Level: Error
Keywords: Classic
User: N/A
Computer: PictureToPeople
Description:
Faulting application name: httpd.exe, version: 2.2.15.0, time stamp: 0x4b8fed95
Faulting module name: ntdll.dll, version: 6.1.7601.17514, time stamp: 0x4ce7ba58
Exception code: 0xc0000005
Fault offset: 0x00037188
Faulting process id: 0xbbc
Faulting application start time: 0x01d1cdfef0f8148c
Faulting application path: C:\Apache2.2\bin\httpd.exe
Faulting module path: C:\Windows\SysWOW64\ntdll.dll
Report Id: 3c1e0a43-3d85-11e6-aad3-001e8cf18221
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Application Error" />
<EventID Qualifiers="0">1000</EventID>
<Level>2</Level>
<Task>100</Task>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime="2016-06-28T23:08:33.000000000Z" />
<EventRecordID>693</EventRecordID>
<Channel>Application</Channel>
<Computer>PictureToPeople</Computer>
<Security />
</System>
<EventData>
<Data>httpd.exe</Data>
<Data>2.2.15.0</Data>
<Data>4b8fed95</Data>
<Data>ntdll.dll</Data>
<Data>6.1.7601.17514</Data>
<Data>4ce7ba58</Data>
<Data>c0000005</Data>
<Data>00037188</Data>
<Data>bbc</Data>
<Data>01d1cdfef0f8148c</Data>
<Data>C:\Apache2.2\bin\httpd.exe</Data>
<Data>C:\Windows\SysWOW64\ntdll.dll</Data>
<Data>3c1e0a43-3d85-11e6-aad3-001e8cf18221</Data>
</EventData>
</Event>
这是 Apache 错误日志在上述错误发生时（2016 年 6 月 28 日 8:08:33）记录的内容。可能会看到错误消息“服务器线程不足，无法处理请求。请考虑提高 ThreadsPerChild 设置”。出现此消息后，Apache 再也无法正常工作。（之前的 Apache 错误日志消息记录得非常早，与此无关。）
[Tue Jun 28 20:08:30 2016] [notice] Parent: Received shutdown signal -- Shutting down the server.
[Tue Jun 28 20:08:31 2016] [notice] Child 3004: Exit event signaled. Child process is ending.
[Tue Jun 28 20:08:32 2016] [info] Child 3004: Accept thread exiting.
[Tue Jun 28 20:08:32 2016] [notice] Child 3004: Released the start mutex
[Tue Jun 28 20:08:32 2016] [notice] Child 3004: Terminating 99 threads that failed to exit.
[Tue Jun 28 20:08:32 2016] [notice] Child 3004: All worker threads have exited.
[Tue Jun 28 20:08:32 2016] [info] [client 1.23.96.161] (OS 10038)An operation was attempted on something that is not a socket. : core_output_filter: writing data to the network
[Tue Jun 28 20:08:34 2016] [notice] Parent: Child process exited successfully.
[Tue Jun 28 20:08:34 2016] [info] removed PID file C:/Apache2.2/logs/httpd.pid (pid=284)
[Tue Jun 28 20:08:54 2016] [notice] Apache/2.2.15 (Win32) configured -- resuming normal operations
[Tue Jun 28 20:08:54 2016] [notice] Server built: Mar 4 2010 11:27:46
[Tue Jun 28 20:08:54 2016] [notice] Parent: Created child process 2468
[Tue Jun 28 20:08:54 2016] [info] Parent: Duplicating socket 308 and sending it to child process 2468
[Tue Jun 28 20:08:54 2016] [notice] Child 2468: Child process is running
[Tue Jun 28 20:08:54 2016] [notice] Child 2468: Acquired the start mutex.
[Tue Jun 28 20:08:54 2016] [notice] Child 2468: Starting 100 worker threads.
[Tue Jun 28 20:08:54 2016] [notice] Child 2468: Starting thread to listen on port 80.
[Tue Jun 28 20:08:56 2016] [warn] Server ran out of threads to serve requests. Consider raising the ThreadsPerChild setting
出现上述错误后，重新启动 Windows 和 Apache 服务无法解决问题（错误消息相同）。重新安装 Apache 并启动机器后，问题仍然存在（错误消息相同）。因此，我将“MaxRequestsPerChild”参数增加到 300，但所有工作线程在 12 秒内就被消耗殆尽。因此，我将“MaxRequestsPerChild”参数增加到 500 并重新启动机器，但所有工作线程在 9 秒内就被消耗殆尽，如下面的日志所示。
[Tue Jun 28 21:55:01 2016] [notice] Parent: Received shutdown signal -- Shutting down the server.
[Tue Jun 28 21:55:01 2016] [notice] Child 864: Exit event signaled. Child process is ending.
[Tue Jun 28 21:55:02 2016] [info] Child 864: Accept thread exiting.
[Tue Jun 28 21:55:02 2016] [notice] Child 864: Released the start mutex
[Tue Jun 28 21:55:20 2016] [error] [client 1.23.96.161] request failed: error reading the headers
[Tue Jun 28 21:55:31 2016] [error] [client 1.23.96.161] request failed: error reading the headers
[Tue Jun 28 21:55:31 2016] [error] [client 1.23.96.161] request failed: error reading the headers
[Tue Jun 28 21:55:31 2016] [notice] Parent: Forcing termination of child process 368
[Tue Jun 28 21:55:31 2016] [info] removed PID file C:/Apache2.2/logs/httpd.pid (pid=2252)
[Tue Jun 28 22:10:13 2016] [notice] Apache/2.2.15 (Win32) configured -- resuming normal operations
[Tue Jun 28 22:10:13 2016] [notice] Server built: Mar 4 2010 11:27:46
[Tue Jun 28 22:10:13 2016] [notice] Parent: Created child process 1452
[Tue Jun 28 22:10:13 2016] [notice] Child 1452: Child process is running
[Tue Jun 28 22:10:13 2016] [info] Parent: Duplicating socket 308 and sending it to child process 1452
[Tue Jun 28 22:10:13 2016] [notice] Child 1452: Acquired the start mutex.
[Tue Jun 28 22:10:13 2016] [notice] Child 1452: Starting 500 worker threads.
[Tue Jun 28 22:10:13 2016] [notice] Child 1452: Starting thread to listen on port 80.
[Tue Jun 28 22:10:22 2016] [warn] Server ran out of threads to serve requests. Consider raising the ThreadsPerChild setting
下面您可以看到我完整的原始 httpd.conf。它已经正常工作了几个月。（我删除了所有注释行以使其更小、更易读，并且还用“xxxxx”屏蔽了一些最小的合理数据）：
ServerRoot "C:/Apache2.2"
Listen 80
LoadModule actions_module modules/mod_actions.so
LoadModule alias_module modules/mod_alias.so
LoadModule asis_module modules/mod_asis.so
LoadModule auth_basic_module modules/mod_auth_basic.so
LoadModule authn_default_module modules/mod_authn_default.so
LoadModule authn_file_module modules/mod_authn_file.so
LoadModule authz_default_module modules/mod_authz_default.so
LoadModule authz_groupfile_module modules/mod_authz_groupfile.so
LoadModule authz_host_module modules/mod_authz_host.so
LoadModule authz_user_module modules/mod_authz_user.so
LoadModule autoindex_module modules/mod_autoindex.so
LoadModule cgi_module modules/mod_cgi.so
LoadModule deflate_module modules/mod_deflate.so
LoadModule dir_module modules/mod_dir.so
LoadModule env_module modules/mod_env.so
LoadModule expires_module modules/mod_expires.so
LoadModule headers_module modules/mod_headers.so
LoadModule include_module modules/mod_include.so
LoadModule isapi_module modules/mod_isapi.so
LoadModule log_config_module modules/mod_log_config.so
LoadModule mime_module modules/mod_mime.so
LoadModule negotiation_module modules/mod_negotiation.so
LoadModule rewrite_module modules/mod_rewrite.so
LoadModule setenvif_module modules/mod_setenvif.so
<IfModule !mpm_netware_module>
<IfModule !mpm_winnt_module>
User daemon
Group daemon
</IfModule>
</IfModule>
ServerAdmin xxxxxxxxxxxxxxxxxxxxxxxx
ServerName xxxxxxxxxxxxxxxxxxxxxxxx:80
DocumentRoot "xxxxxxxxxxxxxxxxxxxxxxxx"
<Directory />
Options FollowSymLinks
AllowOverride None
Order deny,allow
Deny from all
</Directory>
<Directory "xxxxxxxxxxxxxxxxxxxxxxxx">
Options FollowSymLinks
Options +Includes
Options -Indexes
AllowOverride None
Order allow,deny
Allow from all
LimitRequestBody 10485760
SetOutputFilter DEFLATE
SetEnvIfNoCase Request_URI \.(?:gif|jpe?g|png)$ no-gzip
</Directory>
<IfModule dir_module>
DirectoryIndex index.html
</IfModule>
<FilesMatch "^\.ht">
Order allow,deny
Deny from all
Satisfy All
</FilesMatch>
<IfModule mod_headers.c>
Header always append X-Frame-Options SAMEORIGIN
</IfModule>
<IfModule mod_expires.c>
ExpiresActive on
ExpiresDefault "access plus 1 week"
ExpiresByType text/css "access plus 1 week"
ExpiresByType application/atom+xml "access plus 1 hour"
ExpiresByType application/rdf+xml "access plus 1 hour"
ExpiresByType application/rss+xml "access plus 1 hour"
ExpiresByType application/json "access plus 0 seconds"
ExpiresByType application/ld+json "access plus 0 seconds"
ExpiresByType application/schema+json "access plus 0 seconds"
ExpiresByType application/vnd.geo+json "access plus 0 seconds"
ExpiresByType application/xml "access plus 0 seconds"
ExpiresByType text/xml "access plus 0 seconds"
ExpiresByType image/vnd.microsoft.icon "access plus 1 week"
ExpiresByType image/x-icon "access plus 1 week"
ExpiresByType text/html "access plus 1 day"
ExpiresByType application/javascript "access plus 1 week"
ExpiresByType application/x-javascript "access plus 1 week"
ExpiresByType text/javascript "access plus 1 week"
ExpiresByType application/manifest+json "access plus 1 year"
ExpiresByType application/x-web-app-manifest+json "access plus 0 seconds"
ExpiresByType text/cache-manifest "access plus 0 seconds"
ExpiresByType audio/ogg "access plus 1 month"
ExpiresByType image/bmp "access plus 1 month"
ExpiresByType image/gif "access plus 1 month"
ExpiresByType image/jpeg "access plus 1 month"
ExpiresByType image/png "access plus 1 month"
ExpiresByType image/svg+xml "access plus 1 month"
ExpiresByType video/mp4 "access plus 1 month"
ExpiresByType video/ogg "access plus 1 month"
ExpiresByType video/webm "access plus 1 month"
<Directory xxxxxxxxxxxxxxxxxxxxxxxx>
ExpiresByType image/gif "access plus 0 seconds"
ExpiresByType image/jpeg "access plus 0 seconds"
ExpiresByType image/png "access plus 0 seconds"
</Directory>
ExpiresByType application/vnd.ms-fontobject "access plus 1 month"
ExpiresByType font/eot "access plus 1 month"
ExpiresByType font/opentype "access plus 1 month"
ExpiresByType application/x-font-ttf "access plus 1 month"
ExpiresByType application/font-woff "access plus 1 month"
ExpiresByType application/x-font-woff "access plus 1 month"
ExpiresByType font/woff "access plus 1 month"
ExpiresByType application/font-woff2 "access plus 1 month"
ExpiresByType text/x-cross-domain-policy "access plus 1 week"
</IfModule>
ErrorLog "|bin/rotatelogs logs/error.%Y-%m-%d.log 50M"
LogLevel info
<IfModule log_config_module>
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>
LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\" %I %O" combinedio
</IfModule>
CustomLog "|bin/rotatelogs logs/access.%Y-%m-%d---%H.log 300M" common
</IfModule>
<IfModule alias_module>
ScriptAlias /p2p/ "xxxxxxxxxxxxxxxxxxxxxxxx"
</IfModule>
<IfModule cgid_module>
</IfModule>
<Directory "xxxxxxxxxxxxxxxxxxxxxxxx">
AllowOverride None
Options None
Order allow,deny
Allow from all
</Directory>
DefaultType text/plain
<IfModule mime_module>
TypesConfig conf/mime.types
AddType application/x-compress .Z
AddType application/x-gzip .gz .tgz
AddType text/html .html
AddHandler server-parsed .html
</IfModule>
<IfModule mpm_winnt_module>
ThreadsPerChild 100
MaxMemFree 100
MaxRequestsPerChild 5000
</IfModule>
<IfModule ssl_module>
SSLRandomSeed startup builtin
SSLRandomSeed connect builtin
</IfModule>
RewriteEngine On
RewriteCond %{HTTP_HOST} !^www
RewriteRule (.*) http://www.%{HTTP_HOST}$1 [L,R]
如上所示，我的 Apache 在启动后几乎立即停止响应。
我的网站没有连接数据库。它只是使用 CGI 提供动态页面。
有没有办法清理系统，让 Apache 再次像在这次神秘崩溃之前一样工作？
有人可以给我一些建议来解决这个问题，或者至少找到一个解决方法吗？
提前致谢。
答案1
我发现的是这个https://www.apachelounge.com/viewtopic.php?p=21108希望对你有帮助
谢谢
答案2
我在内部 Web 服务器上遇到了同样的问题。最终原因是一台 PC 的数字键盘上的 Enter 键被卡住了，导致它不断发送页面请求（并且 PC 的行为非常奇怪，用户放弃尝试使用它并离开了）。
只要您发送请求的内容足够强大，可以在服务器停止响应后继续发送它们，那么问题就会在重新启动和新版本后仍然存在，直到服务器重新配置为处理所有请求或忽略它们。