我正在为高流量网站设置Wordpress后端（每月获得大约15-20万的综合浏览量）。它正在投放广告，但它没有按照我的意愿执行。
组件是：
我不是专家，但我已经设置了一些在线博客和文档的帮助。但我确定有些不对劲，因为有时会出现“连接到数据库时出错”这样的错误，第一次打开网站时速度慢（漫长的等待时间）用pingdom工具检查）
因此，共享配置，以便此处的专家可以评论服务器设置。我错过了什么吗？
请注意：以下文件中还有其他参数，我已经记下了最相关的
PHP设置：
/etc/php5/fpm/php.ini
max_execution_time = 180
max_input_time = 60
max_input_vars = 5000
memory_limit = 256M
post_max_size = 10M
file_uploads = On
upload_max_filesize = 10M
max_file_uploads = 20
default_socket_timeout = 90
mysql.connect_timeout = 3000
session.cache_expire = 180
[apc]
apc.write_lock = 1
apc.slam_defense = 0
apc.shm_size = "1024M"
/etc/php5/fpm/pool.d/www.conf
user = nginx
group = nginx
listen = /dev/shm/php-fpm-www.sock
listen.owner = nginx
listen.group = nginx
listen.mode = 0660
pm.max_children = 200
pm.start_servers = 25
pm.min_spare_servers = 25
pm.max_spare_servers = 50
pm.process_idle_timeout = 60s;
pm.max_requests = 2000
request_terminate_timeout = 600
php_flag[display_errors] = off
php_admin_value[error_reporting] = 0
php_admin_value[error_log] = /var/log/php5-fpm.log
php_admin_flag[log_errors] = on
php_admin_value[memory_limit] = 1G
Nginx的：
/etc/nginx/nginx.conf
user nginx;
worker_processes 24;
worker_rlimit_nofile 200000;
events {
worker_connections 4000;
use epoll;
multi_accept on;
}
http {
server_names_hash_bucket_size 64;
sendfile on;
tcp_nopush on;
tcp_nodelay on;
keepalive_timeout 65;
client_header_timeout 240;
client_body_timeout 240;
fastcgi_read_timeout 180;
client_max_body_size 32m;
gzip on;
gzip_disable "msie6";
gzip_vary on;
gzip_proxied any;
gzip_comp_level 6;
gzip_buffers 16 8k;
gzip_http_version 1.1;
gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript;
include /etc/nginx/conf.d/*.conf;
port_in_redirect off;
}
/etc/nginx/conf.d/default.conf
server {
client_max_body_size 10M;
listen 8080;
set $cache_uri $request_uri;
# POST requests and urls with a query string should always go to PHP
if ($request_method = POST) {
set $cache_uri 'null cache';
}
if ($query_string != "") {
set $cache_uri 'null cache';
}
# Don't cache uris containing the following segments
if ($request_uri ~* "(/wp-admin/|/xmlrpc.php|/wp-(app|cron|login|register|mail).php|wp-.*.php|/feed/|index.php|wp-comments-popup.php|wp-links-opml.php|wp-locations.php|sitemap(_index)?.xml|[a-z0-9_-]+-sitemap([0-9]+)?.xml)") {
set $cache_uri 'null cache';
}
# Don't use the cache for logged in users or recent commenters
if ($http_cookie ~* "comment_author|wordpress_[a-f0-9]+|wp-postpass|wordpress_logged_in") {
set $cache_uri 'null cache';
}
# Use cached or actual file if they exists, otherwise pass request to WordPress
location / {
try_files $uri $uri/ /index.php?q=$uri&$args;
}
location ~ \.php$ {
fastcgi_buffers 256 16k;
fastcgi_buffer_size 128k;
fastcgi_max_temp_file_size 0;
fastcgi_intercept_errors on;
include fastcgi_params;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
fastcgi_pass unix:/dev/shm/php-fpm-www.sock;
}
# BEGIN W3TC Browser Cache
location ~ \.(css|htc|less|js|js2|js3|js4)$ {
expires 31536000s;
add_header Pragma "public";
add_header Cache-Control "max-age=31536000, public";
add_header X-Powered-By "W3 Total Cache/0.9.4.1";
}
location ~ \.(html|htm|rtf|rtx|svg|svgz|txt|xsd|xsl|xml)$ {
expires 3600s;
add_header Pragma "public";
add_header Cache-Control "max-age=3600, public";
add_header X-Powered-By "W3 Total Cache/0.9.4.1";
}
location ~ \.(asf|asx|wax|wmv|wmx|avi|bmp|class|divx|doc|docx|eot|exe|gif|gz|gzip|ico|jpg|jpeg|jpe|json|mdb|mid|midi|mov|qt|mp3|m4a|mp4|m4v|mpeg|mpg|mpe|mpp|otf|odb|odc|odf|odg|odp|ods|odt|ogg|pdf|png|pot|pps|ppt|pptx|ra|ram|svg|svgz|swf|tar|tif|tiff|ttf|ttc|wav|wma|wri|woff|xla|xls|xlsx|xlt|xlw|zip)$ {
expires 31536000s;
add_header Pragma "public";
add_header Cache-Control "max-age=31536000, public";
add_header X-Powered-By "W3 Total Cache/0.9.4.1";
}
# END W3TC Browser Cache
}
清漆
我从Dreamhost的VCL集合中获取了VCL文件：https://github.com/dreamhost/varnish-vcl-collection
/etc/varnish/default.vcl
backend default {
.host = "127.0.0.1";
.port = "8080";
}
import std;
include "lib/xforward.vcl";
include "lib/cloudflare.vcl";
include "lib/purge.vcl";
include "lib/bigfiles.vcl"; # Varnish 3.0.3+
#include "lib/bigfiles_pipe.vcl"; # Varnish 3.0.2
include "lib/static.vcl";
acl cloudflare {
# set this ip to your Railgun IP (if applicable)
# "1.2.3.4";
}
acl purge {
"localhost";
"127.0.0.1";
}
# Pick just one of the following:
# (or don't use either of these if your application is "adaptive")
# include "lib/mobile_cache.vcl";
# include "lib/mobile_pass.vcl";
### WordPress-specific config ###
# This config was initially derived from the work of Donncha Ó Caoimh:
# http://ocaoimh.ie/2011/08/09/speed-up-wordpress-with-apache-and-varnish/
sub vcl_recv {
# pipe on weird http methods
if (req.request !~ "^GET|HEAD|PUT|POST|TRACE|OPTIONS|DELETE$") {
return(pipe);
}
### Check for reasons to bypass the cache!
# never cache anything except GET/HEAD
if (req.request != "GET" && req.request != "HEAD") {
return(pass);
}
# don't cache logged-in users or authors
if (req.http.Cookie ~ "wp-postpass_|wordpress_logged_in_|comment_author|PHPSESSID") {
return(pass);
}
# don't cache ajax requests
if (req.http.X-Requested-With == "XMLHttpRequest") {
return(pass);
}
# don't cache these special pages
if (req.url ~ "nocache|wp-admin|wp-(comments-post|login|activate|mail)\.php|bb-admin|server-status|control\.php|bb-login\.php|bb-reset-password\.php|register\.php") {
return(pass);
}
### looks like we might actually cache it!
# fix up the request
set req.grace = 2m;
set req.url = regsub(req.url, "\?replytocom=.*$", "");
# Remove has_js, Google Analytics __*, and wooTracker cookies.
set req.http.Cookie = regsuball(req.http.Cookie, "(^|;\s*)(__[a-z]+|has_js|wooTracker)=[^;]*", "");
set req.http.Cookie = regsub(req.http.Cookie, "^;\s*", "");
if (req.http.Cookie ~ "^\s*$") {
unset req.http.Cookie;
}
return(lookup);
}
sub vcl_hash {
# Add the browser cookie only if a WordPress cookie found.
if (req.http.Cookie ~ "wp-postpass_|wordpress_logged_in_|comment_author|PHPSESSID") {
hash_data(req.http.Cookie);
}
}
sub vcl_fetch {
# make sure grace is at least 2 minutes
if (beresp.grace < 2m) {
set beresp.grace = 2m;
}
# catch obvious reasons we can't cache
if (beresp.http.Set-Cookie) {
set beresp.ttl = 0s;
}
# Varnish determined the object was not cacheable
if (beresp.ttl <= 0s) {
set beresp.http.X-Cacheable = "NO:Not Cacheable";
return(hit_for_pass);
# You don't wish to cache content for logged in users
} else if (req.http.Cookie ~ "wp-postpass_|wordpress_logged_in_|comment_author|PHPSESSID") {
set beresp.http.X-Cacheable = "NO:Got Session";
return(hit_for_pass);
# You are respecting the Cache-Control=private header from the backend
} else if (beresp.http.Cache-Control ~ "private") {
set beresp.http.X-Cacheable = "NO:Cache-Control=private";
return(hit_for_pass);
# You are extending the lifetime of the object artificially
} else if (beresp.ttl < 300s) {
set beresp.ttl = 300s;
set beresp.grace = 300s;
set beresp.http.X-Cacheable = "YES:Forced";
# Varnish determined the object was cacheable
} else {
set beresp.http.X-Cacheable = "YES";
}
# Avoid caching error responses
if (beresp.status == 404 || beresp.status >= 500) {
set beresp.ttl = 0s;
set beresp.grace = 15s;
}
# Deliver the content
return(deliver);
}
WordPress的 WP-config.php中
define( 'WP_MEMORY_LIMIT', '512M' );
在W3TC上，我打开了以下内容：
Page Cache (APC)
Database Cache (APC)
Object Cache (APC)
Browser cache
Cloudflare设置：
Minify: Off
Rocket Loader: Off
Caching level: Standard
请指导我。如果有的话，请建议更好的设置。