这将会是关于FastDFS蛋疼的集群和负载均衡系列收官之篇，不排除有总结篇！这篇就是将keepalived实现的nginx集群高可用应用到我们的FastDFS集群中。 ###What did you do today
- 我们需要修改192.168.12.77和192.168.12.88设备上的nginx.conf，配置如下所示:
#user nobody;worker_processes 1;error_log logs/error.log;error_log logs/error.log notice;error_log logs/error.log info;pid logs/nginx.pid;events { # cmazxiaoma is handsome worker_connections 1024;}http { include 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 logs/access.log main; sendfile on; #tcp_nopush on; #keepalive_timeout 0; keepalive_timeout 65; #gzip on; upstream fastdfs_tracker { server 192.168.12.11:8000 weight=1 max_fails=2 fail_timeout=30s; server 192.168.12.22:8000 weight=1 max_fails=2 fail_timeout=30s; } server { listen 80; server_name localhost; #charset koi8-r; access_log logs/host.access.log main; location /fastdfs { root html; index index.html index.htm; proxy_pass http://fastdfs_tracker/; proxy_set_header Host $http_host; proxy_set_header Cookie $http_cookie; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header X-Forwarded-Proto $scheme; client_max_body_size 300m; } location / { root html; index index.html index.htm; } #error_page 404 /404.html; # redirect server error pages to the static page /50x.html # error_page 500 502 503 504 /50x.html; location = /50x.html { root html; } # proxy the PHP scripts to Apache listening on 127.0.0.1:80 # #location ~ \.php$ { # 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; #} # deny access to .htaccess files, if Apache's document root # concurs with nginx's one # #location ~ /\.ht { # deny all; #} } # another virtual host using mix of IP-, name-, and port-based configuration # #server { # listen 8000; # listen somename:8080; # server_name somename alias another.alias; # location / { # root html; # index index.html index.htm; # } #} # HTTPS server # #server { # listen 443 ssl; # server_name localhost; # ssl_certificate cert.pem; # ssl_certificate_key cert.key; # ssl_session_cache shared:SSL:1m; # ssl_session_timeout 5m; # ssl_ciphers HIGH:!aNULL:!MD5; # ssl_prefer_server_ciphers on; # location / { # root html; # index index.html index.htm; # } #}}复制代码 - 我们对配置做了一些修改。
- 一处是添加了负载均衡upstream fastdfs_tracker.把192.168.12.11和192.168.12.22两台设备作为tracker，现在我们集群了一层nginx来代理2台tracker
upstream fastdfs_tracker { server 192.168.12.11:8000 weight=1 max_fails=2 fail_timeout=30s; server 192.168.12.22:8000 weight=1 max_fails=2 fail_timeout=30s; }复制代码 -
另一处修改是添加了一个location，匹配路径中含有fastdfs。
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我们再上传一张图片。上传成功返回group1/M00/00/00/wKgMIVpE8IKAWxlrAADRd6mMX3g207.jpg
- 我们试着访问http://192.168.12.111/fastdfs/group1/M00/00/00/wKgMIVpE8IKAWxlrAADRd6mMX3g207.jpg，完美！
###Summary
FastDFS负载均衡和集群终于搞定了。 1.虚拟ip 192.168.12.111提供入口 2.一层Nginx集群负载均衡(192.168.12.77、192.168.12.88) 3.Tracker+Nginx负载均衡(192.168.12.11) 4.Tracker + Nginx负债均衡(192.168.12.22) 5.Group1包含Stroage+Nginx(192.168.12.33), Storage+Nginx(192.168.12.44) 6.Group2包含Stroage+Nginx(192.168.12.55), Storage+Nginx(192.168.12.66) 一共2台tracker、4台storage、8台nginx。
###What to do tomorrow
写一篇关于FastDFS集群和负载均衡的总结。这个星期把Spring Security和二叉树两篇博客搞定，预习Zookeeper。下一个星期把Zookeeper撸一遍。