我在这里寻求一些帮助，我已经花了不less时间在这个网站searchpost，也在谷歌试图看看问题可能是什么，并试图解决我的问题没有太大的成功。 我有以下设置。 我们正在与Linode.com托pipe。
（1） – 一个负载均衡器循环，最less连接到以下两个节点（2） – 每个运行Nginx + php-fpm + APC的2GB节点，并通过本地连接到专用机器上运行的另一个mySQL实例IP地址。 每个节点都有（4）专用内核。
我在每个节点上运行一个worpdess站点，基本上每个节点都运行相同的wordpress PHP代码的完全相同的副本。
一切正常运行，但CPU的负载非常高，我们正在平均节点上的以下负载：
节点1：平均负载：4.11 3.84 3.95节点2：负载平均：4.20 3.94 4.95
为什么核心尖刺和负载。 整个网站每天在（2）个节点上获得大约210万个请求。
这是nginxconfiguration还是php-fpm问题，还是只需要添加一个或两个以上的节点？
预先感谢您的帮助。 戴夫
我的nginx.conf
[ddavtian@mobilefood-1 nginx]$ more nginx.conf ####################################################################### # # This is the main Nginx configuration file. # # More information about the configuration options is available on # * the English wiki - http://wiki.nginx.org/Main # * the Russian documentation - http://sysoev.ru/nginx/ # ####################################################################### #---------------------------------------------------------------------- # Main Module - directives that cover basic functionality # # http://wiki.nginx.org/NginxHttpMainModule # #---------------------------------------------------------------------- user nginx; worker_processes 4; worker_rlimit_nofile 30000; error_log /var/log/nginx/error.log; #error_log /var/log/nginx/error.log notice; #error_log /var/log/nginx/error.log info; pid /var/run/nginx.pid; #---------------------------------------------------------------------- # Events Module # # http://wiki.nginx.org/NginxHttpEventsModule # #---------------------------------------------------------------------- events { worker_connections 1024; } #---------------------------------------------------------------------- # HTTP Core Module # # http://wiki.nginx.org/NginxHttpCoreModule # #---------------------------------------------------------------------- http { include /etc/nginx/mime.types; default_type application/octet-stream; log_format main '$remote_addr - $remote_user [$time_local] "$request" ' '$status $body_bytes_sent "$http_referer" ' '"$http_user_agent" "$http_x_forwarded_for"'; #access_log /var/log/nginx/access.log main; sendfile on; #tcp_nopush on; #keepalive_timeout 0; keepalive_timeout 15; #gzip on; # Load config files from the /etc/nginx/conf.d directory # The default server is in conf.d/default.conf include /etc/nginx/conf.d/*.conf; } 我的fastcgi_params
fastcgi_param QUERY_STRING $query_string; fastcgi_param REQUEST_METHOD $request_method; fastcgi_param CONTENT_TYPE $content_type; fastcgi_param CONTENT_LENGTH $content_length; fastcgi_param SCRIPT_NAME $fastcgi_script_name; fastcgi_param REQUEST_URI $request_uri; fastcgi_param DOCUMENT_URI $document_uri; fastcgi_param DOCUMENT_ROOT $document_root; fastcgi_param SERVER_PROTOCOL $server_protocol; fastcgi_param GATEWAY_INTERFACE CGI/1.1; fastcgi_param SERVER_SOFTWARE nginx/$nginx_version; fastcgi_param REMOTE_ADDR $remote_addr; fastcgi_param REMOTE_PORT $remote_port; fastcgi_param SERVER_ADDR $server_addr; fastcgi_param SERVER_PORT $server_port; fastcgi_param SERVER_NAME $server_name; fastcgi_connect_timeout 60; fastcgi_send_timeout 180; fastcgi_read_timeout 180; fastcgi_buffer_size 128k; fastcgi_buffers 4 256k; fastcgi_busy_buffers_size 256k; fastcgi_temp_file_write_size 256k; fastcgi_intercept_errors on; # PHP only, required if PHP was built with --enable-force-cgi-redirect fastcgi_param REDIRECT_STATUS 200;
我的default.conf
[ddavtian @ mobilefood-1 conf.d] $ more default.conf
# # The default server # server { listen 80; server_name mobilefoodblog.com; #charset koi8-r; access_log off; #access_log logs/host.access.log main; location /nginx_status { stub_status on; access_log off; allow 67.180.226.49; deny all; } location / { root /var/www/html/blog; index index.php index.html index.htm; try_files $uri $uri/ /index.php?q=$uri&$args; } error_page 404 /404.html; location = /404.html { root /usr/share/nginx/html; } # redirect server error pages to the static page /50x.html # error_page 500 502 503 504 /50x.html; location = /50x.html { root /usr/share/nginx/html; } # proxy the PHP scripts to Apache listening on 127.0.0.1:80 # #location ~ \.php$ { # proxy_pass http://127.0.0.1; #} # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000 # #location ~ \.php$ { # root html; # fastcgi_pass 127.0.0.1:9000; # fastcgi_index index.php; # fastcgi_param SCRIPT_FILENAME /scripts$fastcgi_script_name; # include fastcgi_params; #} location ~ \.php$ { root /var/www/html/blog; fastcgi_pass 127.0.0.1:9000; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME /var/www/html/blog$fastcgi_script_name; include fastcgi_params; set_real_ip_from 192.168.255.0/24; real_ip_header X-Forwarded-For; } # deny access to .htaccess files, if Apache's document root # concurs with nginx's one # #location ~ /\.ht { # deny all; #} }
我的php-fpm.conf
[ddavtian @ mobilefood-1 conf.d] $ more default.conf
# # The default server # server { listen 80; server_name mobilefoodblog.com; #charset koi8-r; access_log off; #access_log logs/host.access.log main; location /nginx_status { stub_status on; access_log off; allow 67.180.226.49; deny all; } location / { root /var/www/html/blog; index index.php index.html index.htm; try_files $uri $uri/ /index.php?q=$uri&$args; } error_page 404 /404.html; location = /404.html { root /usr/share/nginx/html; } # redirect server error pages to the static page /50x.html # error_page 500 502 503 504 /50x.html; location = /50x.html { root /usr/share/nginx/html; } # proxy the PHP scripts to Apache listening on 127.0.0.1:80 # #location ~ \.php$ { # proxy_pass http://127.0.0.1; #} # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000 # #location ~ \.php$ { # root html; # fastcgi_pass 127.0.0.1:9000; # fastcgi_index index.php; # fastcgi_param SCRIPT_FILENAME /scripts$fastcgi_script_name; # include fastcgi_params; #} location ~ \.php$ { root /var/www/html/blog; fastcgi_pass 127.0.0.1:9000; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME /var/www/html/blog$fastcgi_script_name; include fastcgi_params; set_real_ip_from 192.168.255.0/24; real_ip_header X-Forwarded-For; } # deny access to .htaccess files, if Apache's document root # concurs with nginx's one # #location ~ /\.ht { # deny all; #}
}
我的php-fpm.conf
[ddavtian @ mobilefood-1 php-fpm.d] $ more www.conf
; Start a new pool named 'www'. [www] ; The address on which to accept FastCGI requests. ; Valid syntaxes are: ; 'ip.add.re.ss:port' - to listen on a TCP socket to a specific address on ; a specific port; ; 'port' - to listen on a TCP socket to all addresses on a ; specific port; ; '/path/to/unix/socket' - to listen on a unix socket. ; Note: This value is mandatory. listen = 127.0.0.1:9000 ; Set listen(2) backlog. A value of '-1' means unlimited. ; Default Value: -1 ;listen.backlog = -1 ; List of ipv4 addresses of FastCGI clients which are allowed to connect. ; Equivalent to the FCGI_WEB_SERVER_ADDRS environment variable in the original ; PHP FCGI (5.2.2+). Makes sense only with a tcp listening socket. Each address ; must be separated by a comma. If this value is left blank, connections will be ; accepted from any ip address. ; Default Value: any listen.allowed_clients = 127.0.0.1 ; Set permissions for unix socket, if one is used. In Linux, read/write ; permissions must be set in order to allow connections from a web server. Many ; BSD-derived systems allow connections regardless of permissions. ; Default Values: user and group are set as the running user ; mode is set to 0666 ;listen.owner = nobody ;listen.group = nobody ;listen.mode = 0666 ; Unix user/group of processes ; Note: The user is mandatory. If the group is not set, the default user's group ; will be used. ; RPM: apache Choosed to be able to access some dir as httpd user = apache ; RPM: Keep a group allowed to write in log dir. group = apache ; Choose how the process manager will control the number of child processes. ; Possible Values: ; static - a fixed number (pm.max_children) of child processes; ; dynamic - the number of child processes are set dynamically based on the ; following directives: ; pm.max_children - the maximum number of children that can ; be alive at the same time. ; pm.start_servers - the number of children created on startup. ; pm.min_spare_servers - the minimum number of children in 'idle' ; state (waiting to process). If the number ; of 'idle' processes is less than this ; number then some children will be created. ; pm.max_spare_servers - the maximum number of children in 'idle' ; state (waiting to process). If the number ; of 'idle' processes is greater than this ; number then some children will be killed. ; Note: This value is mandatory. pm = dynamic ; The number of child processes to be created when pm is set to 'static' and the ; maximum number of child processes to be created when pm is set to 'dynamic'. ; This value sets the limit on the number of simultaneous requests that will be ; served. Equivalent to the ApacheMaxClients directive with mpm_prefork. ; Equivalent to the PHP_FCGI_CHILDREN environment variable in the original PHP ; CGI. ; Note: Used when pm is set to either 'static' or 'dynamic' ; Note: This value is mandatory. pm.max_children = 60 ; The number of child processes created on startup. ; Note: Used only when pm is set to 'dynamic' ; Default Value: min_spare_servers + (max_spare_servers - min_spare_servers) / 2 pm.start_servers = 10 ; The desired minimum number of idle server processes. ; Note: Used only when pm is set to 'dynamic' ; Note: Mandatory when pm is set to 'dynamic' pm.min_spare_servers = 5 ; The desired maximum number of idle server processes. ; Note: Used only when pm is set to 'dynamic' ; Note: Mandatory when pm is set to 'dynamic' pm.max_spare_servers = 35 ; The number of requests each child process should execute before respawning. ; This can be useful to work around memory leaks in 3rd party libraries. For ; endless request processing specify '0'. Equivalent to PHP_FCGI_MAX_REQUESTS. ; Default Value: 0 ;pm.max_requests = 500 ; The URI to view the FPM status page. If this value is not set, no URI will be ; recognized as a status page. By default, the status page shows the following ; information: ; accepted conn - the number of request accepted by the pool; ; pool - the name of the pool; ; process manager - static or dynamic; ; idle processes - the number of idle processes; ; active processes - the number of active processes; ; total processes - the number of idle + active processes. ; The values of 'idle processes', 'active processes' and 'total processes' are ; updated each second. The value of 'accepted conn' is updated in real time. ; Example output: ; accepted conn: 12073 ; pool: www ; process manager: static ; idle processes: 35 ; active processes: 65 ; total processes: 100 ; By default the status page output is formatted as text/plain. Passing either ; 'html' or 'json' as a query string will return the corresponding output ; syntax. Example: ; http://www.foo.bar/status ; http://www.foo.bar/status?json ; http://www.foo.bar/status?html ; Note: The value must start with a leading slash (/). The value can be ; anything, but it may not be a good idea to use the .php extension or it ; may conflict with a real PHP file. ; Default Value: not set ;pm.status_path = /status ; The ping URI to call the monitoring page of FPM. If this value is not set, no ; URI will be recognized as a ping page. This could be used to test from outside ; that FPM is alive and responding, or to ; - create a graph of FPM availability (rrd or such); ; - remove a server from a group if it is not responding (load balancing); ; - trigger alerts for the operating team (24/7). ; Note: The value must start with a leading slash (/). The value can be ; anything, but it may not be a good idea to use the .php extension or it ; may conflict with a real PHP file. ; Default Value: not set ;ping.path = /ping ; This directive may be used to customize the response of a ping request. The ; response is formatted as text/plain with a 200 response code. ; Default Value: pong ;ping.response = pong ; The timeout for serving a single request after which the worker process will ; be killed. This option should be used when the 'max_execution_time' ini option ; does not stop script execution for some reason. A value of '0' means 'off'. ; Available units: s(econds)(default), m(inutes), h(ours), or d(ays) ; Default Value: 0 ;request_terminate_timeout = 0 ; The timeout for serving a single request after which a PHP backtrace will be ; dumped to the 'slowlog' file. A value of '0s' means 'off'. ; Available units: s(econds)(default), m(inutes), h(ours), or d(ays) ; Default Value: 0 ;request_slowlog_timeout = 0 ; The log file for slow requests ; Default Value: not set ; Note: slowlog is mandatory if request_slowlog_timeout is set slowlog = /var/log/php-fpm/www-slow.log ; Set open file descriptor rlimit. ; Default Value: system defined value ;rlimit_files = 1024 ; Set max core size rlimit. ; Possible Values: 'unlimited' or an integer greater or equal to 0 ; Default Value: system defined value ;rlimit_core = 0 ; Chroot to this directory at the start. This value must be defined as an ; absolute path. When this value is not set, chroot is not used. ; Note: chrooting is a great security feature and should be used whenever ; possible. However, all PHP paths will be relative to the chroot ; (error_log, sessions.save_path, ...). ; Default Value: not set ;chroot = ; Chdir to this directory at the start. This value must be an absolute path. ; Default Value: current directory or / when chroot ;chdir = /var/www ; Redirect worker stdout and stderr into main error log. If not set, stdout and ; stderr will be redirected to /dev/null according to FastCGI specs. ; Default Value: no ;catch_workers_output = yes ; Pass environment variables like LD_LIBRARY_PATH. All $VARIABLEs are taken from ; the current environment. ; Default Value: clean env ;env[HOSTNAME] = $HOSTNAME ;env[PATH] = /usr/local/bin:/usr/bin:/bin ;env[TMP] = /tmp ;env[TMPDIR] = /tmp ;env[TEMP] = /tmp ; Additional php.ini defines, specific to this pool of workers. These settings ; overwrite the values previously defined in the php.ini. The directives are the ; same as the PHP SAPI: ; php_value/php_flag - you can set classic ini defines which can ; be overwritten from PHP call 'ini_set'. ; php_admin_value/php_admin_flag - these directives won't be overwritten by ; PHP call 'ini_set' ; For php_*flag, valid values are on, off, 1, 0, true, false, yes or no. ; Defining 'extension' will load the corresponding shared extension from ; extension_dir. Defining 'disable_functions' or 'disable_classes' will not ; overwrite previously defined php.ini values, but will append the new value ; instead. ; Default Value: nothing is defined by default except the values in php.ini and ; specified at startup with the -d argument ;php_admin_value[sendmail_path] = /usr/sbin/sendmail -t -i -f [email protected] ;php_flag[display_errors] = off php_admin_value[error_log] = /var/log/php-fpm/www-error.log php_admin_flag[log_errors] = on ;php_admin_value[memory_limit] = 32M
更新1：添加htop的输出，这表明php-fpm消耗了大部分的CPU，而且这个盒子没有使用太多的内存，也没有交换
UDPATE 2：这是htop的最新突破，现在获得更多的stream量和更多的CPU使用率。 我现在甚至已经安装了memcached，但目前还没有看到改进。
1 [|||||||||||||||||||||||||||||||||||||||85.5%] Tasks: 62, 9 thr; 18 running 2 [||||||||||||||||||||||||||||||||| 72.7%] Load average: 6.18 5.46 4.23 3 [|||||||||||||||||||||||||| 57.0%] Uptime: 2 days, 03:40:49 4 [||||||||||||||||||||||| 52.0%] Mem[||||||||||||||||||| 463/1997MB] Swp[ 0/2047MB] PID USER PRI NI VIRT RES SHR S CPU% MEM% TIME+ Command 28892 apache 20 0 511M 33864 21484 R 9.0 1.7 0:52.62 php-fpm: pool www 28972 apache 20 0 511M 33808 21188 R 9.0 1.7 0:30.08 php-fpm: pool www 28918 apache 20 0 510M 32512 20544 R 8.0 1.6 0:52.00 php-fpm: pool www 28899 apache 20 0 510M 29320 17488 S 8.0 1.4 0:52.53 php-fpm: pool www 28900 apache 20 0 510M 29280 17492 S 8.0 1.4 0:52.60 php-fpm: pool www 28919 apache 20 0 510M 29512 17568 R 8.0 1.4 0:51.53 php-fpm: pool www 28914 apache 20 0 510M 29300 17468 R 8.0 1.4 0:52.12 php-fpm: pool www 28971 apache 20 0 510M 32648 20868 R 8.0 1.6 0:31.66 php-fpm: pool www 28904 apache 20 0 512M 38544 25284 R 8.0 1.9 0:51.70 php-fpm: pool www 28916 apache 20 0 511M 33636 21092 R 8.0 1.6 0:51.89 php-fpm: pool www 28905 apache 20 0 510M 29868 18108 S 8.0 1.5 0:52.06 php-fpm: pool www 28898 apache 20 0 512M 38608 25156 S 7.0 1.9 0:52.57 php-fpm: pool www 28891 apache 20 0 512M 34824 21420 R 7.0 1.7 0:52.73 php-fpm: pool www 28912 apache 20 0 510M 32724 20904 R 7.0 1.6 0:52.14 php-fpm: pool www 28894 apache 20 0 512M 34280 21388 S 7.0 1.7 0:53.14 php-fpm: pool www 11744 apache 20 0 508M 28104 16648 S 0.0 1.4 0:08.72 php-fpm: pool www