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记录备用：
https://github.com/dotcloud/docker/

FastDHT使用Berkeley DB为后端存储，安装：

wget https://fastdht.googlecode.com/files/FastDHT_v1.23.tar.gz
tar zxvf FastDHT_v1.23.tar.gz 
cd FastDHT
./make.sh C_INCLUDE_PATH=/usr/local/BerkeleyDB.6.0/include \
LIBRARY_PATH=/usr/local/BerkeleyDB.6.0/lib/
./make.sh install
mkdir -p /home/yuqing/fastdht
echo "/usr/local/BerkeleyDB.6.0/lib/" > /etc/ld.so.conf.d/db.conf
ldconfig

配置fastdht：

/etc/fdht/fdht_servers.conf
group_count = 2
group0 = 192.168.1.1:11411
group0 = 192.168.1.2:11411
group1 = 192.168.1.1:11411
group1 = 192.168.1.2:11411

配置fastdfs storage

/etc/fdfs/storage.conf 
check_file_duplicate=1
file_signature_method=hash
key_namespace=FastDFS
keep_alive=1
#include /etc/fdht/fdht_servers.conf

再次测试上传多次同个文件，重复上传的文件以链接方式保存。

安装：

yum install -y libevent-devel pcre-devel zlib-devel
wget http://fastdfs.googlecode.com/files/FastDFS_v4.06.tar.gz
tar zxvf FastDFS_v4.06.tar.gz
cd FastDFS
./make.sh && ./make.sh install

配置tracker：

/etc/fdfs/tracker.conf 
base_path=/home/fastdfs #工作目录，记录日志相差信息
bind_addr=0.0.0.0
port=22122
run_by_group=fastdfs
run_by_user=fastdfs

配置storage：

/etc/fdfs/storage.conf 
group_name=group1 #服务器所在组，组内服务器数据同步
base_path=/home//fastdfs
store_path0=/home/fastdfs #数据目录
tracker_server=192.168.1.1:22122 #tracker服务器

配置client：

/etc/fdfs/client.conf 
tracker_server=192.168.1.1:22122

测试上传：

fdfs_test /etc/fdfs/client.conf upload .bashrc 

查看group/storage信息及删除storage：

fdfs_monitor /etc/fdfs/client.conf
fdfs_monitor /etc/fdfs/client.conf delete group1 192.168.1.1

安装配置php客户端：

cd php_client/
./configure
make && make install
cp fastdfs_client.ini /etc/php.d/
#配置调用上面配置的/etc/fdfs/client.conf 

使用php上传文件：

<?php
$tracker = fastdfs_tracker_get_connection();
var_dump($tracker);
$storage = fastdfs_tracker_query_storage_store();
var_dump($storage);
$ret = fastdfs_storage_upload_by_filename('fastdfs.spec');
var_dump($ret);
$ret = fastdfs_storage_upload_by_filename1('fastdfs.spec');
var_dump($ret);
$file = file_get_contents("fastdfs.spec");
$ret = fastdfs_storage_upload_by_filebuff($file, 'spec');
var_dump($ret);
$ret = fastdfs_storage_upload_by_filebuff1($file, 'spec');
var_dump($ret);
?>

storage存储安装Nginx模块，用于提供文件下载，文件不存在时通过tracker获取同组内其它storage数据：

wget http://fastdfs.googlecode.com/files/fastdfs-nginx-module_v1.15.tar.gz
./configure --add-module=/root/fastdfs-nginx-module/src
cp mod_fastdfs.conf /etc/fdfs/ #配置文件

插件配置：

tracker_server=192.168.1.1:22122
group_name=group1
url_have_group_name = false #url是否包含组名
response_mode=proxy #向其它storage获取数据方式，代理或重定向

    #location /grout0/M00 { #url_have_group_name要设置为true
    location /M00 {
            root /home/yuqing/fastdfs/data;
            ngx_fastdfs_module;
    }

直接使用Nginx提供文件访问，不通过tracker：

  location /M00 {
    alias /home/yuqing/fastdfs/data;
    #ngx_fastdfs_module;
  }