Fastdfs集群搭建

1.关于集群，网上说最少要三台，其实也没必要，两台就够了

2.实验环境

192.168.2.201　　tracker、storage、nginx + fastdfs-nginx-module-master + ngx_cache_purge 　　keepalived   

192.168.2.202　　tracker、storage、nginx + fastdfs-nginx-module-master + ngx_cache_purge 　　keepalived

结构如上图所示：

开始搭建

1.准备：

yum install git gcc gcc-c++ make automake autoconf libtool pcre pcre-devel zlib zlib-devel openssl-devel -y

2.安装libfastcommon

 解压libfastcommon-master.zip
    [root@Node202 fastdfs-master]# cd /data/softwares/fastdfs

    [root@Node202 opt]# unzip -o libfastcommon-master.zip -d /usr/local

    [root@Node202 opt]# cd /usr/local/libfastcommon-master/

    [root@Node202 libfastcommon-master]# ./make.sh

    [root@Node202 libfastcommon-master]# ./make.sh install

3.安装 fastdfs

 cd /data/softwares/fastdfs
    unzip -o fastdfs-master.zip -d /usr/local
    cd /usr/local/fastdfs-master
    ./make.sh
    ./make.sh install

4.拷贝配置文件

将fastdfs安装目录下的conf下的文件拷贝到/etc/fdfs/下

root@Node202 fastdfs-master]# cp -r conf/* /etc/fdfs/

fdfs可执行命令
[root@Node202 fdfs]# ll /usr/bin/fdfs*

5.配置并启动trackerd

 修改trackerd.conf
  [root@Node202 fdfs]# cd /etc/fdfs/
  [root@Node202 fdfs]# vim tracker.conf

  base_path=/data/fastdfs  # 存储日志和数据的根目录

  其它参数保留默认配置， 具体配置解释可参考官方文档说明：http://bbs.chinaunix.net/thread-1941456-1-1.html

  创建trackerd数据、日志目录
  [root@Node202 fdfs]# mkdir -p /data/fastdfs

  启动trackerd
  [root@Node202 fdfs]# /usr/bin/fdfs_trackerd /etc/fdfs/tracker.conf restart
    日志：/data/fastdfs/logs/trackerd.log

  [root@Node202 fdfs]# ps -ef | grep fdfs

6.配置并启动storaged

修改storage.conf

[root@Node202 fdfs]# cd /etc/fdfs/

[root@Node202 fdfs]# vim storage.conf

  base_path=/data/fastdfs
  store_path0=/data/fastdfs  
  tracker_server=192.168.2.202:22122，这个ip改成自己的

启动storaged
[root@Node202 fdfs]# /usr/bin/fdfs_storaged /etc/fdfs/storage.conf restart
  日志：/data/fastdfs/logs/storaged.log

7.FastDFS 和nginx整合

7.1 fastdfs-nginx-module模块，作用：通过nginx访问时，当访问的节点文件不存在时（没有同步过来），此模块会自动寻找源文件所属机器。

解压
[root@Node202 00]# cd /data/softwares/fastdfs
[root@Node202 opt]# unzip -o fastdfs-nginx-module-master.zip -d /usr/local

拷贝配置文件
[root@Node202 opt]# cd /usr/local/fastdfs-nginx-module-master/src
[root@Node202 src]# cp mod_fastdfs.conf /etc/fdfs/

编辑配置文件
[root@Node202 src]# cd /etc/fdfs/
[root@Node202 fdfs]# vim mod_fastdfs.conf
  base_path=/data/fastdfs
  tracker_server=192.168.2.202:22122
  url_have_group_name = true；#url中包含group名称
  store_path0=/data/fastdfs

7.2 ngx_cache_purge模块 作用：删除缓存

解压缓存模块
[root@Node11 fdfs]# cd /data/softwares/fastdfs/
[root@Node11 fastdfs]# tar -zxvf ngx_cache_purge-2.3.tar.gz -C /usr/local/

8. 安装nginx

8.1 nginx依赖包安装

[root@Node202 fdfs]# cd /opt
[root@Node202 opt]# yum -y install zlib zlib-devel openssl openssl--devel pcre pcre-devel

8.2 安装nginx

解压nginx
  [root@Node202 opt]# tar -zxvf nginx-1.14.2.tar.gz
  
安装nginx并添加两个模块
[root@Node202 opt]# cd /data/softwares/fastdfs/nginx-1.14.2
[root@Node202 nginx-1.14.2]# ./configure --prefix=/usr/local/nginx --add-module=/usr/local/fastdfs-nginx-module-master/src --add-module=/usr/local/ngx_cache_purge-2.3

[root@Node202 nginx-1.14.2]# make
[root@Node202 nginx-1.14.2]# make install

8.3 检验nginx

检查nginx模块
[root@Node12 nginx-1.14.2]# /usr/local/nginx/sbin/nginx -V
nginx version: nginx/1.14.2
built by gcc 4.8.5 20150623 (Red Hat 4.8.5-36) (GCC) 
configure arguments: --prefix=/usr/local/nginx --add-module=/usr/local/fastdfs-nginx-module-master/src --add-module=/usr/local/ngx_cache_purge-2.3

[root@Node202 opt]# /usr/local/nginx/sbin/nginx -t
ngx_http_fastdfs_set pid=13287
nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful

9.配置nginx配置文件

注意：创建文件夹：
mkdir -p /data/fastdfs/cache/nginx/proxy_cache/tmp

vim /usr/local/nginx/conf/nginx.conf

    proxy_cache_path /data/fastdfs/cache/nginx/proxy_cache levels=1:2 keys_zone=http-cache:200m max_size=1g inactive=30d;
    proxy_temp_path /data/fastdfs/cache/nginx/proxy_cache/tmp;

    upstream fdfs_group1{
        server 192.168.0.115:8888 weight=1 max_fails=2 fail_timeout=30s;
        server 192.168.0.244:8888 weight=1 max_fails=2 fail_timeout=30s;
    }

    server {
        listen       8888;
        server_name  192.168.0.244;

        location ~/group[0-9]/ {
                proxy_next_upstream http_502 http_504 error timeout invalid_header;
                proxy_cache http-cache;
                proxy_cache_valid  200 304 12h;
                proxy_cache_key $uri$is_args$args;
                proxy_pass http://fdfs_group1;
                expires 30d;

                ngx_fastdfs_module;
        }
        error_page   500 502 503 504  /50x.html;
            location = /50x.html {
             root   html;
        }
    }

10.启动nginx

启动
/usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf

重启nginx
/usr/local/nginx/sbin/nginx -s reload

11. 验证fastdfs上传功能

修改客户端文件：
vim /etc/fdfs/client.conf
  base_path=/data/fastdfs
  tracker_server=192.168.0.115:22122
  tracker_server=192.168.0.244:22122

上传：

/usr/bin/fdfs_upload_file /etc/fdfs/client.conf /opt/fu2.jpg 192.168.2.202:23000 0
/usr/bin/fdfs_test /etc/fdfs/client.conf upload /opt/fu.jpg

访问：
http://192.168.2.202:8888/group1/M00/00/00/wKgCylxQETeAZMTBAADsE2xyRuI261.jpg

12. 开机启动

将Tracker加入开机启动项

# cp /usr/fastdfs/FastDFS/init.d/fdfs_trackerd /etc/init.d/
# chkconfig --add fdfs_trackerd
# chkconfig fdfs_trackerd on


将Storage加入开机启动项

# cp /usr/fastdfs/FastDFS/init.d/fdfs_storaged /etc/init.d/
# chkconfig --add fdfs_storaged
# chkconfig fdfs_storaged on

netstat -unltp | grep fdfs