服务器 Gind.cn
  1. 服务器 Gind.cn
  3. 高性能AWS EC2 / RDS + Nginx + PHP-FPM设置
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高性能AWS EC2 / RDS + Nginx + PHP-FPM设置

问题的一般描述

我们目前正在运行PHP的PaaStypes解决scheme上的应用程序。 他们的解决scheme基于AWS云计算，由于他们的计划不适合我们的扩展需求，我们决定直接迁移到AWS，应用程序在每分钟400个请求的应用程序响应中执行“很好”〜100ms在生产中，但在AWS上进行响应需要很长时间。 请记住，这些请求中的每一个都会执行数据库插入+一些计算统计信息的昂贵select。

当前AWS安装尝试

1中RDS服务器（这是不是瓶颈，因为我已经检查）1中型运行nginx + PHP的r3 EC2服务器FPM + Ubuntu的x64 14.04我一直在运行一些基准，并试图模拟我们的正常stream量负载尽可能接近它只是在恒定的负荷下开始行动。

当前使用Config

Nginx的 

user www-data; worker_processes 2; pid /run/nginx.pid; worker_rlimit_nofile 30000; events { worker_connections 8192; #multi_accept on; use epoll; } http { ## # Basic Settings ## sendfile on; tcp_nopush on; tcp_nodelay off; keepalive_timeout 30; types_hash_max_size 2048; server_tokens off; # increase buffer and timeouts 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; }

Nginx的网站/可用 

 server { listen 80; server_name project.example.com; root /var/www/project/public/; access_log off; charset utf-8; index index.html index.htm index.php; location / { try_files $uri $uri/ /index.php?q=$uri&$args; } # catch all error_page 404 /index.php; location ~ \.php$ { # Pass the PHP files to PHP FastCGI for processing fastcgi_split_path_info ^(.+\.php)(/.+)$; include /etc/nginx/fastcgi_params; #fastcgi_pass 127.0.0.1:9000; fastcgi_pass unix:/var/run/php5-fpm.sock; fastcgi_index index.php; } }

PHP-fpm.conf 

 emergency_restart_threshold = 3 emergency_restart_interval = 1m process_control_timeout = 5s

php-fpm池 

 pm = dynamic pm.max_children = 48 pm.start_servers = 18 pm.min_spare_servers = 16 pm.max_spare_servers = 24 pm.max_requests = 50

/etc/sysctl.conf中 

 net.core.rmem_max = 16777216 net.core.wmem_max = 16777216 net.ipv4.tcp_rmem = 4096 87380 16777216 net.ipv4.tcp_wmem = 4096 16384 16777216 net.core.somaxconn = 4096 net.core.netdev_max_backlog = 16384 net.ipv4.tcp_max_syn_backlog = 8192 net.ipv4.tcp_syncookies = 1 net.ipv4.ip_local_port_range = 1024 65535 net.ipv4.tcp_tw_recycle = 1 net.ipv4.tcp_congestion_control = cubic

Opcache设置

php -i | grep opcache 

 Additional .ini files parsed => /etc/php5/cli/conf.d/05-opcache.ini, opcache.blacklist_filename => no value => no value opcache.consistency_checks => 0 => 0 opcache.dups_fix => Off => Off opcache.enable => On => On opcache.enable_cli => Off => Off opcache.enable_file_override => Off => Off opcache.error_log => no value => no value opcache.fast_shutdown => 0 => 0 opcache.file_update_protection => 2 => 2 opcache.force_restart_timeout => 180 => 180 opcache.inherited_hack => On => On opcache.interned_strings_buffer => 4 => 4 opcache.load_comments => 1 => 1 opcache.log_verbosity_level => 1 => 1 opcache.max_accelerated_files => 50000 => 50000 opcache.max_file_size => 0 => 0 opcache.max_wasted_percentage => 5 => 5 opcache.memory_consumption => 128 => 128 opcache.optimization_level => 0xFFFFFFFF => 0xFFFFFFFF opcache.preferred_memory_model => no value => no value opcache.protect_memory => 0 => 0 opcache.restrict_api => no value => no value opcache.revalidate_freq => 2 => 2 opcache.revalidate_path => Off => Off opcache.save_comments => 1 => 1 opcache.use_cwd => On => On opcache.validate_timestamps => On => On

php -i | grep apc 

 /etc/php5/cli/conf.d/20-apcu.ini, apc apcu apc.coredump_unmap => Off => Off apc.enable_cli => Off => Off apc.enabled => On => On apc.entries_hint => 4096 => 4096 apc.gc_ttl => 3600 => 3600 apc.mmap_file_mask => no value => no value apc.preload_path => no value => no value apc.rfc1867 => Off => Off apc.rfc1867_freq => 0 => 0 apc.rfc1867_name => APC_UPLOAD_PROGRESS => APC_UPLOAD_PROGRESS apc.rfc1867_prefix => upload_ => upload_ apc.rfc1867_ttl => 3600 => 3600 apc.serializer => php => php apc.shm_segments => 1 => 1 apc.shm_size => 32M => 32M apc.slam_defense => On => On apc.smart => 0 => 0 apc.ttl => 0 => 0 apc.use_request_time => On => On apc.writable => /tmp => /tmp

基准结果

AWS设置 

 Concurrency Level: 75 Time taken for tests: 18.836 seconds Complete requests: 111 Failed requests: 0 Total transferred: 238269 bytes HTML transferred: 36630 bytes Requests per second: 5.89 [#/sec] (mean) Time per request: 12726.963 [ms] (mean) Time per request: 169.693 [ms] (mean, across all concurrent requests) Transfer rate: 12.35 [Kbytes/sec] received Connection Times (ms) min mean[+/-sd] median max Connect: 58 226 113.0 276 390 Processing: 2099 8960 3593.2 9524 16784 Waiting: 2087 8947 3591.8 9517 16783 Total: 2377 9186 3585.0 9593 17164 Percentage of the requests served within a certain time (ms) 50% 9512 66% 11085 75% 11747 80% 12323 90% 12954 95% 14459 98% 15792 99% 16201 100% 17164 (longest request)

生产设置 

  Document Length: 331 bytes Concurrency Level: 75 Time taken for tests: 7.544 seconds Complete requests: 595 Failed requests: 0 Total transferred: 1220905 bytes HTML transferred: 196945 bytes Requests per second: 78.87 [#/sec] (mean) Time per request: 950.922 [ms] (mean) Time per request: 12.679 [ms] (mean, across all concurrent requests) Transfer rate: 158.05 [Kbytes/sec] received Connection Times (ms) min mean[+/-sd] median max Connect: 58 105 78.4 76 384 Processing: 265 787 263.1 725 1382 Waiting: 265 785 262.9 723 1381 Total: 419 891 267.7 836 1742 Percentage of the requests served within a certain time (ms) 50% 836 66% 1002 75% 1071 80% 1129 90% 1263 95% 1376 98% 1662 99% 1672 100% 1742 (longest request)

样本top输出： 

 top - 12:58:24 up 4 min, 1 user, load average: 41.69, 16.15, 5.95 Tasks: 121 total, 51 running, 70 sleeping, 0 stopped, 0 zombie %Cpu(s): 17.7 us, 21.0 sy, 0.0 ni, 40.2 id, 0.9 wa, 0.2 hi, 0.0 si, 20.0 st KiB Mem: 3838876 total, 643628 used, 3195248 free, 18028 buffers KiB Swap: 1048572 total, 0 used, 1048572 free. 169920 cached Mem PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 1035 www-data 20 0 354540 24272 15224 R 11.8 0.6 0:02.61 php5-fpm 1037 www-data 20 0 356116 26092 15804 R 11.8 0.7 0:02.66 php5-fpm 1038 www-data 20 0 355344 25036 15552 R 11.8 0.7 0:02.64 php5-fpm 1042 www-data 20 0 355588 25392 15660 R 11.8 0.7 0:02.59 php5-fpm 1044 www-data 20 0 354548 24820 15760 R 11.8 0.6 0:02.63 php5-fpm 1047 www-data 20 0 356364 26416 15792 R 11.8 0.7 0:02.63 php5-fpm 1538 www-data 20 0 356300 25092 14624 R 11.8 0.7 0:02.39 php5-fpm 1046 www-data 20 0 356628 26616 15740 R 5.9 0.7 0:02.61 php5-fpm 1051 www-data 20 0 356360 26572 15960 R 5.9 0.7 0:02.63 php5-fpm 1052 www-data 20 0 354544 24780 15988 R 5.9 0.6 0:02.63 php5-fpm 1512 www-data 20 0 353124 21904 14620 R 5.9 0.6 0:02.55 php5-fpm 1514 www-data 20 0 355856 24540 14620 R 5.9 0.6 0:02.49 php5-fpm 1517 www-data 20 0 355272 24028 14620 R 5.9 0.6 0:02.48 php5-fpm 1518 www-data 20 0 355048 24176 14620 R 5.9 0.6 0:02.44 php5-fpm 1520 www-data 20 0 355600 24264 14620 R 5.9 0.6 0:02.44 php5-fpm 1525 www-data 20 0 355344 24460 14620 R 5.9 0.6 0:02.41 php5-fpm 1527 www-data 20 0 355344 24436 14620 R 5.9 0.6 0:02.41 php5-fpm 1528 www-data 20 0 354760 23848 14620 R 5.9 0.6 0:02.41 php5-fpm 1539 www-data 20 0 356072 25200 14620 R 5.9 0.7 0:02.38 php5-fpm

结论在我身边

  • 我试图看看nginx是否是在所需的负载下提供.txt文件的罪魁祸首，完美无缺地工作。
  • 然后，我试图通过提供一个非常简单的.php文件，包含“回声”确定，看看是否有错误的PHP-FPM“;” 在生产和aws，和aws实际上在更高的负载下performance更好一点
  • 即使我使用ab -c 100 -n 10000攻击服务器时，MySQL RDS数据库仍然有11个活动连接
  • 硬件看起来也不是问题，因为在testing中它有30％的CPU负载，可用RAM和交换空间的负载是不变的。
  • 我没有从各自的日志中获得nginx或php-fpm的任何错误，只是响应缓慢。
  • 代码库本身不是问题，因为为什么在世界上它会在原始的生产服务器上运行良好？