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[经验分享] fastdfs+nginx安装详解

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发表于 2015-11-13 09:57:25 | 显示全部楼层 |阅读模式
FastDFS安装配置手册
  
  目录
  FastDFS安装配置手册...1
  一、        安装... 3
  (一)      下载FastDFS安装包... 3
  (二)      安装tracker. 3
  1.     安装... 3
  2.     配置... 5
  3.     运行... 5
  (三)      安装storage. 6
  1.     安装... 6
  2.     配置... 8
  3.     运行... 8
  (四)      在storage上安装nginx. 10
  1.     安装... 10
  2.     配置... 12
  3.     运行... 13
  (五)      在tracker上安装nginx. 14
  1.     安装... 15
  2.     配置... 16
  3.     运行... 18
  二、        使用... 20
  1.     上传文件... 20
  2.     下载文件... 21
  3.     监视服务器资源... 21
  4.     其他功能... 27
  三、        附录... 28
  
  


一、      安装
(一)         下载FastDFS安装包
  FastDFS官方论坛:http://www.csource.org
  下载1:http://sourceforge.net/projects/fastdfs/files/
  下载2:https://code.google.com/p/fastdfs/downloads/list
  
  本手册使用CentOS 6.5 x86_64版操作系统,按照以下网络结构进行部署:
  
  所需要下载的压缩包有:
  FastDFS源代码:FastDFS_v5.01.tar.gz
  nginx模块源代码:fastdfs-nginx-module_v1.15.tar.gz
  nginx服务器源代码:nginx-1.4.7.tar.gz
  nginx cache purge插件源代码:ngx_cache_purge-2.1.tar.gz
  nginx依赖的pcre库源代码:pcre-8.34.tar.gz
  nginx依赖的zlib库源代码:zlib-1.2.8.tar.gz
(二)         安装tracker
1.      安装
  首先在172.16.1.202上安装FastDFS tracker,使用FastDFS_v5.01.tar.gz源代码包。
  可以直接从Linux系统下载源代码包并解压安装。如果是在Windows系统下载,可以在Linux系统中挂载Windows的共享目录并且将源代码包复制进Linux系统内。挂载命令如下
  
  [iyunv@centos-db01 ~]# mount -o ro //Windows主机的IP地址/共享目录名/挂载目标目录
  
  l  首先将代码包复制到系统的/usr/local/src内(这一步可选),然后使用tar命令解压
  
  [iyunv@tracker opt]# cp FastDFS_v5.01.tar.gz /usr/local/src/
  [iyunv@tracker opt]# cd /usr/local/src/
  [iyunv@tracker src]# tar zxf FastDFS_v5.01.tar.gz
  [iyunv@tracker src]# cd FastDFS
  [iyunv@tracker FastDFS]# ll
  总用量 128
  drwxrwxr-x. 3 500 500  4096 2月   6 18:07 client
  drwxrwxr-x. 2 500 500  4096 2月   6 18:07 common
  drwxrwxr-x. 2 500 500  4096 2月   6 18:07 conf
  -rw-rw-r--. 1 500 500 35067 7月  28 2008 COPYING-3_0.txt
  -rw-rw-r--. 1 500 500 29691 2月   2 13:17 HISTORY
  drwxrwxr-x. 2 500 500  4096 2月   6 18:07 init.d
  -rw-rw-r--. 1 500 500  7639 1月   5 14:08 INSTALL
  -rwxrwxr-x. 1 500 500  5531 12月  7 15:19 make.sh
  drwxrwxr-x. 2 500 500  4096 2月   6 18:07 php_client
  -rw-rw-r--. 1 500 500  2380 7月  28 2008 README
  -rwxrwxr-x. 1 500 500  1768 4月  12 2010 restart.sh
  -rwxrwxr-x. 1 500 500  1680 4月  10 2010 stop.sh
  drwxrwxr-x. 4 500 500  4096 2月   6 18:07 storage
  drwxrwxr-x. 2 500 500  4096 2月   6 18:07 test
  drwxrwxr-x. 2 500 500  4096 2月   6 18:07 tracker
  
  l  运行make.sh,确认make成功。期间如果有错误,可能会是缺少依赖的软件包,需安装后再次make。
  
  [iyunv@tracker FastDFS]# ./make.sh
  
  l  运行make.shinstall,确认install成功。
  
  [iyunv@tracker FastDFS]# ./make.sh install
  
  安装完成后,所有可执行文件在/usr/local/bin下,以fdfs开头:
  
  [iyunv@tracker FastDFS]# ll /usr/local/bin/fdfs*
  -rwxr-xr-x. 1 root root  522918 3月  25 14:57 /usr/local/bin/fdfs_appender_test
  -rwxr-xr-x. 1 root root  522871 3月  25 14:57 /usr/local/bin/fdfs_appender_test1
  -rwxr-xr-x. 1 root root  514023 3月  25 14:57 /usr/loal/bin/fdfs_append_file
  -rwxr-xr-x. 1 root root  513433 3月  25 14:57 /usr/local/bin/fdfs_crc32
  -rwxr-xr-x. 1 root root  513967 3月  25 14:57 /usr/local/bin/fdfs_delete_file
  -rwxr-xr-x. 1 root root  514377 3月  25 14:57 /usr/local/bin/fdfs_download_file
  -rwxr-xr-x. 1 root root  514133 3月  25 14:57 /usr/local/bin/fdfs_file_info
  -rwxr-xr-x. 1 root root  525064 3月  25 14:57 /usr/local/bin/fdfs_monitor
  -rwxr-xr-x. 1 root root 1179682 3月  25 14:57 /usr/local/bin/fdfs_storaged
  -rwxr-xr-x. 1 root root  529845 3月  25 14:57 /usr/local/bin/fdfs_test
  -rwxr-xr-x. 1 root root  527774 3月  25 14:57 /usr/local/bin/fdfs_test1
  -rwxr-xr-x. 1 root root  655809 3月  25 14:57 /usr/local/bin/fdfs_trackerd
  -rwxr-xr-x. 1 root root  514213 3月  25 14:57 /usr/local/bin/fdfs_upload_appender
  -rwxr-xr-x. 1 root root  514999 3月  25 14:57 /usr/local/bin/fdfs_upload_file
  
  所有配置文件在/etc/fdfs下:
  
  [iyunv@tracker FastDFS]# ll /etc/fdfs/
  总用量 60
  -rw-r--r--. 1 root root  1461 3月  13 15:15 client.conf
  -rw-r--r--. 1 root root   858 3月  13 15:15 http.conf
  -rw-r--r--. 1 root root 31172 3月  13 15:15 mime.types
  -rw-r--r--. 1 root root  3837 3月  25 10:03 mod_fastdfs.conf
  -rw-r--r--. 1 root root  7515 3月  24 10:36 storage.conf
  -rw-r--r--. 1 root root  6989 3月  13 15:15 tracker.conf
  
  l  至此tracker安装完成。
2.      配置
  l  编辑配置文件目录下的tracker.conf,设置相关信息并保存。
  
  [iyunv@tracker FastDFS]# vim /etc/fdfs/tracker.conf
  
  一般只需改动以下几个参数即可:
  disabled=false            #启用配置文件
  port=22122                #设置tracker的端口号
  base_path=/fdfs/tracker   #设置tracker的数据文件和日志目录(需预先创建)
  http.server_port=8080     #设置http端口号
  如需要进行性能调优,可以参照附录的配置文件的详细说明。
3.      运行
  l  运行tracker之前,先要把防火墙中对应的fd端口打开(本例中为22122)。
  
  [iyunv@tracker FastDFS]# iptables -I INPUT -p tcp -m state --state NEW -m tcp --dport 22122 -j ACCEPT
  [iyunv@tracker FastDFS]# /etc/init.d/iptables save
  iptables:将防火墙规则保存到 /etc/sysconfig/iptables:[确定]
  
  l  启动tracker,确认启动是否成功。(查看是否对应端口22122是否开始监听)
  
  [iyunv@tracker FastDFS]#/usr/local/bin/fdfs_trackerd /etc/fdfs/tracker.conf restart
  [iyunv@tracker FastDFS]#netstat -unltp | grep fdfs
  tcp    0    0.0.0.0:22122       0.0.0.0:*           LISTEN      1766/fdfs_trackerd
  
  也可查看tracker的日志是否启动成功或是否有错误。
  
  [iyunv@tracker FastDFS]#cat /fdfs/tracker/logs/trackerd.log
  
  l  设置开机自动启动。
  
  [iyunv@tracker FastDFS]# vim /etc/rc.d/rc.local
  
  将运行命令行添加进文件:/usr/local/bin/fdfs_trackerd /etc/fdfs/tracker.conf restart
(三)         安装storage
1.      安装
  首先在172.16.1.203上安装FastDFS storage,使用FastDFS_v5.01.tar.gz源代码包。
  l  首先将代码包复制到系统的/usr/local/src内(这一步可选),然后使用tar命令解压
  
  [iyunv@storage1opt]# cp FastDFS_v5.01.tar.gz /usr/local/src/
  [iyunv@storage1opt]# cd /usr/local/src/
  [iyunv@storage1src]# tar zxf FastDFS_v5.01.tar.gz
  [iyunv@storage1src]# cd FastDFS
  [iyunv@storage1FastDFS]# ll
  总用量 128
  drwxrwxr-x. 3 500 500  4096 2月   6 18:07 client
  drwxrwxr-x. 2 500 500  4096 2月   6 18:07 common
  drwxrwxr-x. 2 500 500  4096 2月   6 18:07 conf
  -rw-rw-r--. 1 500 500 35067 7月  28 2008 COPYING-3_0.txt
  -rw-rw-r--. 1 500 500 29691 2月   2 13:17 HISTORY
  drwxrwxr-x. 2 500 500  4096 2月   6 18:07 init.d
  -rw-rw-r--. 1 500 500  7639 1月   5 14:08 INSTALL
  -rwxrwxr-x. 1 500 500  5531 12月  7 15:19 make.sh
  drwxrwxr-x. 2 500 500  4096 2月   6 18:07 php_client
  -rw-rw-r--. 1 500 500  2380 7月  28 2008 README
  -rwxrwxr-x. 1 500 500  1768 4月  12 2010 restart.sh
  -rwxrwxr-x. 1 500 500  1680 4月  10 2010 stop.sh
  drwxrwxr-x. 4 500 500  4096 2月   6 18:07 storage
  drwxrwxr-x. 2 500 500  4096 2月   6 18:07 test
  drwxrwxr-x. 2 500 500  4096 2月   6 18:07 tracker
  
  l  运行make.sh,确认make成功。期间如果有错误,可能会是缺少依赖的软件包,需安装后再次make。
  
  [iyunv@storage1FastDFS]# ./make.sh
  
  l  运行make.shinstall,确认install成功。
  
  [iyunv@storage1FastDFS]# ./make.sh install
  
  安装完成后,所有可执行文件在/usr/local/bin下,以fdfs开头:
  
  [iyunv@storage1FastDFS]# ll /usr/local/bin/fdfs*
  -rwxr-xr-x. 1 root root  522918 3月  25 14:57 /usr/local/bin/fdfs_appender_test
  -rwxr-xr-x. 1 root root  522871 3月  25 14:57 /usr/local/bin/fdfs_appender_test1
  -rwxr-xr-x. 1 root root  514023 3月  25 14:57 /usr/local/bin/fdfs_append_file
  -rwxr-xr-x. 1 root root  513433 3月  25 14:57 /usr/local/bin/fdfs_crc32
  -rwxr-xr-x. 1 root root  513967 3月  25 14:57 /usr/local/bin/fdfs_delete_file
  -rwxr-xr-x. 1 root root  514377 3月  25 14:57 /usr/local/bin/fdfs_download_file
  -rwxr-xr-x. 1 root root  514133 3月  25 14:57 /usr/local/bin/fdfs_file_info
  -rwxr-xr-x. 1 root root  525064 3月  25 14:57 /usr/local/bin/fdfs_monitor
  -rwxr-xr-x. 1 root root 1179682 3月  25 14:57 /usr/local/bin/fdfs_storaged
  -rwxr-xr-x. 1 root root  529845 3月  25 14:57 /usr/local/bin/fdfs_test
  -rwxr-xr-x. 1 root root  527774 3月  25 14:57 /usr/local/bin/fdfs_test1
  -rwxr-xr-x. 1 root root  655809 3月  25 14:57 /usr/local/bin/fdfs_trackerd
  -rwxr-xr-x. 1 root root  514213 3月  25 14:57 /usr/local/bin/fdfs_upload_appender
  -rwxr-xr-x. 1 root root  514999 3月  25 14:57 /usr/local/bin/fdfs_upload_file
  
  所有配置文件在/etc/fdfs下:
  
  [iyunv@storage1FastDFS]# ll /etc/fdfs/
  总用量 60
  -rw-r--r--. 1 root root  1461 3月  13 15:15 client.conf
  -rw-r--r--. 1 root root   858 3月  13 15:15 http.conf
  -rw-r--r--. 1 root root 31172 3月  13 15:15 mime.types
  -rw-r--r--. 1 root root  3837 3月  25 10:03 mod_fastdfs.conf
  -rw-r--r--. 1 root root  7515 3月  24 10:36 storage.conf
  -rw-r--r--. 1 root root  6989 3月  13 15:15 tracker.conf
  
  l  至此storage安装完成。
2.      配置
  l  编辑配置文件目录下的storage.conf,设置相关信息并保存。
  
  [iyunv@storage1FastDFS]# vim /etc/fdfs/storage.conf
  
  一般只需改动以下几个参数即可:
  disabled=false            #启用配置文件
  group_name=group1#组名,根据实际情况修改
  port=23000#设置storage的端口号
  base_path=/fdfs/storage#设置storage的日志目录(需预先创建)
  store_path_count=1#存储路径个数,需要和store_path个数匹配
  store_path0=/fdfs/storage#存储路径
  tracker_server=172.16.1.202:22122#tracker服务器的IP地址和端口号
  http.server_port=8080     #设置http端口号
  如需要进行性能调优,可以参照附录的配置文件的详细说明。
3.      运行
  l  运行storage之前,先要把防火墙中对应的端口打开(本例中为23000)。
  
  [iyunv@storage1 FastDFS]# iptables -I INPUT -p tcp -m state --state NEW -m tcp --dport 23000 -j ACCEPT
  [iyunv@storage1FastDFS]# /etc/init.d/iptables save
  iptables:将防火墙规则保存到 /etc/sysconfig/iptables:[确定]
  
  l  启动storage,会根据配置文件的设置自动创建多级存储目录,确认启动是否成功。(查看是否对应端口23000是否开始监听)
  
  [iyunv@storage1 FastDFS]#/usr/local/bin/fdfs_storaged /etc/fdfs/storage.conf restart
  data path: /fdfs/storage/data, mkdir sub dir...
  mkdir data path: 00 ...
  mkdir data path: 01 ...
  mkdir data path: 02 ...
  mkdir data path: 03 ...
  ...
  data path: /fdfs/storage/data, mkdir sub dir done.
  [iyunv@storage1 FastDFS]#netstat -unltp | grep fdfs
  tcp    0    0.0.0.0:23000       0.0.0.0:*           LISTEN      1766/fdfs_storaged
  
  也可查看storage的日志是否启动成功或是否有错误。
  
  [iyunv@storage1 FastDFS]#cat /fdfs/storage/logs/storaged.log

  确认启动成功后,可以运行fdfs_monitor查看storage服务器是否已经登记到tracker服务器。
  
  [iyunv@storage1 FastDFS]# /usr/local/bin/fdfs_monitor /etc/fdfs/storage.conf
  [2014-03-26 01:51:20] DEBUG - base_path=/fdfs/storage, connect_timeout=30, network_timeout=60, tracker_server_count=1, anti_steal_token=0, anti_steal_secret_key length=0, use_connection_pool=0, g_connection_pool_max_idle_time=3600s, use_storage_id=0, storageserver id count: 0
  
  server_count=1, server_index=0
  
  tracker server is 172.16.1.202:22122
  
  group count: 1
  
  Group 1:
  group name = group1
  disk total space = 27789 MB
  disk free space = 23920 MB
  trunk free space = 0 MB
  storage server count = 1
  active server count = 1
  storage server port = 23000
  storage HTTP port = 8080
  store path count = 1
  subdir count per path = 256
  current write server index = 0
  current trunk file id = 0
  
  Storage 1:
  id = 172.16.1.203
  ip_addr = 172.16.1.203  ACTIVE
  http domain =
  version = 5.01
  join time = 2014-03-26 01:48:19
  up time = 2014-03-26 01:48:19
  total storage = 27789 MB
  free storage = 23920 MB
  upload priority = 10
  store_path_count = 1
  subdir_count_per_path = 256
  storage_port = 23000
  storage_http_port = 8080
  current_write_path = 0
  source storage id=
  if_trunk_server= 0
  total_upload_count = 0
  success_upload_count = 0
  total_append_count = 0
  success_append_count = 0
  total_modify_count = 0
  success_modify_count = 0
  total_truncate_count = 0
  success_truncate_count = 0
  total_set_meta_count = 0
  success_set_meta_count = 0
  total_delete_count = 0
  success_delete_count = 0
  total_download_count = 0
  success_download_count = 0
  total_get_meta_count = 0
  success_get_meta_count = 0
  total_create_link_count = 0
  success_create_link_count = 0
  total_delete_link_count = 0
  success_delete_link_count = 0
  total_upload_bytes = 0
  success_upload_bytes = 0
  total_append_bytes = 0
  success_append_bytes = 0
  total_modify_bytes = 0
  success_modify_bytes = 0
  stotal_download_bytes = 0
  success_download_bytes = 0
  total_sync_in_bytes = 0
  success_sync_in_bytes = 0
  total_sync_out_bytes = 0
  success_sync_out_bytes = 0
  total_file_open_count = 0
  success_file_open_count = 0
  total_file_read_count = 0
  success_file_read_count = 0
  total_file_write_count = 0
  success_file_write_count = 0
  last_heart_beat_time = 2014-03-26 01:51:03
  last_source_update = 1970-01-01 08:00:00
  last_sync_update = 1970-01-01 08:00:00
  last_synced_timestamp = 1970-01-01 08:00:00
  
  看到“172.16.1.203  ACTIVE”即可确认storage运行正常。
  
  l  设置开机自动启动。
  
  [iyunv@storage1 FastDFS]# vim /etc/rc.d/rc.local
  
  将运行命令行添加进文件:/usr/local/bin/fdfs_storaged /etc/fdfs/storage.conf restart
  
  l  之后依次在172.16.1.204~208上全部安装上storage并确认运行正常。注意配置文件中group名参数需要根据实际情况调整,本例中group是这样分配的:
  group1:172.16.1.203,172.16.1.204
  group2:172.16.1.205,172.16.1.206
  group3:172.16.1.207,172.16.1.208
  另外每个group中所有storage的端口号必须一致。
(四)         在storage上安装nginx
  在storage上安装的nginx主要为了提供http的访问服务,同时解决group中storage服务器的同步延迟问题。(需要安装ngx_cache_purge-2.1.tar.gz)
1.      安装
  首先在172.16.1.203上安装nginx,使用nginx-1.4.7.tar.gz源代码包以及FastDFS的nginx插件fastdfs-nginx-module_v1.15.tar.gz。
  l  首先将代码包和插件复制到系统的/usr/local/src内(可选),然后使用tar命令解压
  
  [iyunv@storage1opt]# cp nginx-1.4.7.tar.gz /usr/local/src
  [iyunv@storage1opt]# cp fastdfs-nginx-module_v1.15.tar.gz /usr/local/src
  [iyunv@storage1opt]# cp pcre-8.34.tar.gz /usr/local/src
  [iyunv@storage1opt]# cp zlib-1.2.8.tar.gz /usr/local/src
  [iyunv@storage1opt]# cd /usr/local/src/
  [iyunv@storage1src]# tar zxf nginx-1.4.7.tar.gz
  [iyunv@storage1src]# tar zxf fastdfs-nginx-module_v1.15.tar.gz
  [iyunv@storage1src]# tar zxf pcre-8.34.tar.gz
  [iyunv@storage1src]# tar zxf zlib-1.2.8.tar.gz
  [iyunv@storage1src]# cd nginx-1.4.7
  [iyunv@storage1nginx-1.4.7]# ll
  总用量 592
  drwxr-xr-x. 6 1001 1001   4096 3月  26 02:34 auto
  -rw-r--r--. 1 1001 1001 225213 3月  18 21:17 CHANGES
  -rw-r--r--. 1 1001 1001 343040 3月  18 21:17 CHANGES.ru
  drwxr-xr-x. 2 1001 1001   4096 3月  26 02:34 conf
  -rwxr-xr-x. 1 1001 1001   2369 3月  18 21:17 configure
  drwxr-xr-x. 3 1001 1001   4096 3月  26 02:34 contrib
  drwxr-xr-x. 2 1001 1001   4096 3月  26 02:34 html
  -rw-r--r--. 1 1001 1001   1397 3月  18 21:17 LICENSE
  drwxr-xr-x. 2 1001 1001   4096 3月  26 02:34 man
  -rw-r--r--. 1 1001 1001     49 3月  18 21:17 README
  drwxr-xr-x. 8 1001 1001   4096 3月  26 02:34 src
  
  l  运行./configure进行安装前的设置,主要设置安装路径、FastDFS插件模块目录、pcre库目录、zlib库目录。
  如果提示错误,可能缺少依赖的软件包,需先安装依赖包,再次运行./configure
  
  [iyunv@storage1 nginx-1.4.7]# ./configure --prefix=/usr/local/nginx --add-module=/usr/local/src/fastdfs-nginx-module/src --with-pcre=/usr/local/src/pcre-8.34/ --with-zlib=/usr/local/src/zlib-1.2.8
  
  l  运行make进行编译,确保编译成功。
  
  [iyunv@storage1 nginx-1.4.7]#make
  
  l  运行makeinstall进行安装。
  
  [iyunv@storage1 nginx-1.4.7]#make install
  
  l  将FastDFS的nginx插件模块的配置文件copy到FastDFS配置文件目录。
  
  [iyunv@storage1 nginx-1.4.7]#cp /usr/local/src/fastdfs-nginx-module/src/mod_fastdfs.conf /etc/fdfs/
  
  安装完成后,nginx所有文件在/usr/local/nginx下:
  
  [iyunv@storage1 nginx-1.4.7]# ll /usr/local/nginx/
  总用量 16
  drwxr-xr-x. 2 root root 4096 3月  26 03:11 conf
  drwxr-xr-x. 2 root root 4096 3月  26 03:11 html
  drwxr-xr-x. 2 root root 4096 3月  26 03:11 logs
  drwxr-xr-x. 2 root root 4096 3月  26 03:11 sbin
  
  l  至此nginx以及FastDFS的nginx插件模块安装完成。
2.      配置
  l  编辑/usr/local/nginx/conf配置文件目录下的nginx.conf,设置添加storage信息并保存。
  
  [iyunv@storage1 nginx-1.4.7]# vim /usr/local/nginx/conf/nginx.conf
  
  将server段中的listen端口号改为8080:
  listen       8080;
  在server段中添加:
  location~/group[1-3]/M00{
  root/fdfs/storage/data;
  ngx_fastdfs_module;
  }
  
  l  编辑/etc/fdfs配置文件目录下的mod_fastdfs.conf,设置storage信息并保存。
  
  [iyunv@storage1 nginx-1.4.7]# vim /etc/fdfs/mod_fastdfs.conf
  
  一般只需改动以下几个参数即可:
  base_path=/fdfs/storage#保存日志目录
  tracker_server=172.16.1.202:22122#tracker服务器的IP地址以及端口号
  storage_server_port=23000#storage服务器的端口号
  group_name=group1#当前服务器的group名
  url_have_group_name= true        #文件url中是否有group名
  store_path_count=1                #存储路径个数,需要和store_path个数匹配
  store_path0=/fdfs/storage         #存储路径
  http.need_find_content_type=true#从文件扩展名查找文件类型(nginx时为true)
  group_count= 3                   #设置组的个数
  在末尾增加3个组的具体信息:
  [group1]
  group_name=group1
  storage_server_port=23000
  store_path_count=1
  store_path0=/fdfs/storage
  
  [group2]
  group_name=group2
  storage_server_port=23000
  store_path_count=1
  store_path0=/fdfs/storage
  
  [group3]
  group_name=group3
  storage_server_port=23000
  store_path_count=1
  store_path0=/fdfs/storage
  
  l  建立M00至存储目录的符号连接。
  
  [iyunv@storage1 nginx-1.4.7]# ln -s /fdfs/storage/data /fdfs/storage/data/M00
  [iyunv@storage1 nginx-1.4.7]# ll /fdfs/storage/data/M00
  lrwxrwxrwx. 1 root root 19 3月  26 03:44 /fdfs/storage/data/M00 -> /fdfs/storage/data/
  
  l  至此,nginx以及FastDFS插件模块设置完成。
3.      运行
  l  运行nginx之前,先要把防火墙中对应的端口打开(本例中为8080)。
  
  [iyunv@storage1nginx-1.4.7]# iptables -I INPUT -p tcp -m state --state NEW -m tcp --dport 8080 -j ACCEPT
  [iyunv@storage1nginx-1.4.7]# /etc/init.d/iptables save
  iptables:将防火墙规则保存到 /etc/sysconfig/iptables:[确定]
  
  l  启动nginx,确认启动是否成功。(查看是否对应端口8080是否开始监听)
  
  [iyunv@storage1 nginx-1.4.7]# /usr/local/nginx/sbin/nginx
  ngx_http_fastdfs_set pid=40638
  [iyunv@storage1 nginx-1.4.7]# netstat -unltp | grep nginx
  tcp    0    0.0.0.0:8080            0.0.0.0:*              LISTEN      40639/nginx
  
  也可查看nginx的日志是否启动成功或是否有错误。
  
  [iyunv@storage1 nginx-1.4.7]# cat /usr/local/nginx/logs/error.log
  ngx_http_fastdfs_process_init pid=40640
  [2014-03-26 03:47:17] INFO - local_host_ip_count: 2,  127.0.0.1  172.16.1.203
  [2014-03-26 03:47:17] INFO - fastdfs apache / nginx module v1.15, response_mode=proxy, base_path=/tmp, url_have_group_name=1, group_count=3, connect_timeout=2, network_timeout=30, tracker_server_count=1, if_alias_prefix=, local_host_ip_count=2, need_find_content_type=1,default_content_type=application/octet-stream, anti_steal_token=0, token_ttl=0s, anti_steal_secret_key length=0, token_check_fail content_type=, token_check_fail buff length=0, load_fdfs_parameters_from_tracker=1, storage_sync_file_max_delay=86400s, use_storage_id=0,storage server id count=0, flv_support=1, flv_extension=flv
  [2014-03-26 03:47:17] INFO - group 1. group_name=group1, storage_server_port=23000, path_count=1, store_path0=/fdfs/storage
  [2014-03-26 03:47:17] INFO - group 2. group_name=group2, storage_server_port=23000, path_count=1, store_path0=/fdfs/storage
  [2014-03-26 03:47:17] INFO - group 3. group_name=group3, storage_server_port=23000, path_count=1, store_path0=/fdfs/storage
  
  在error.log中没有错误,既启动成功。可以打开浏览器,直接访问http://172.16.1.203:8080,查看是否弹出nginx欢迎页面。
  
  
  之后依次在172.16.1.204~208上全部安装上nginx并确认运行正常。
  
  l  设置开机自动启动。
  
  [iyunv@storage1 nginx-1.4.7]# vim /etc/rc.d/rc.local
  
  将运行命令行添加进文件:/usr/local/nginx/sbin/nginx
  
(五)         在tracker上安装nginx
  在tracker上安装的nginx主要为了提供http访问的反向代理、负载均衡以及缓存服务。
1.      安装
  l  首先将代码包和插件复制到系统的/usr/local/src内(可选),然后使用tar命令解压
  
  [iyunv@trackeropt]# cp nginx-1.4.7.tar.gz /usr/local/src
  [iyunv@tracker opt]# cp ngx_cache_purge-2.1.tar.gz /usr/local/src
  [iyunv@tracker opt]# cp pcre-8.34.tar.gz /usr/local/src
  [iyunv@tracker opt]# cp zlib-1.2.8.tar.gz /usr/local/src
  [iyunv@tracker opt]# cd /usr/local/src/
  [iyunv@tracker src]# tar zxf nginx-1.4.7.tar.gz
  [iyunv@tracker src]# tar zxf ngx_cache_purge-2.1.tar.gz
  [iyunv@tracker src]# tar zxf pcre-8.34.tar.gz
  [iyunv@tracker src]# tar zxf zlib-1.2.8.tar.gz
  [iyunv@tracker src]# cd nginx-1.4.7
  [iyunv@tracker nginx-1.4.7]# ll
  总用量 592
  drwxr-xr-x. 6 1001 1001   4096 3月  26 02:34 auto
  -rw-r--r--. 1 1001 1001 225213 3月  18 21:17 CHANGES
  -rw-r--r--. 1 1001 1001 343040 3月  18 21:17 CHANGES.ru
  drwxr-xr-x. 2 1001 1001   4096 3月  26 02:34 conf
  -rwxr-xr-x. 1 1001 1001   2369 3月  18 21:17 configure
  drwxr-xr-x. 3 1001 1001   4096 3月  26 02:34 contrib
  drwxr-xr-x. 2 1001 1001   4096 3月  26 02:34 html
  -rw-r--r--. 1 1001 1001   1397 3月  18 21:17 LICENSE
  drwxr-xr-x. 2 1001 1001   4096 3月  26 02:34 man
  -rw-r--r--. 1 1001 1001     49 3月  18 21:17 README
  drwxr-xr-x. 8 1001 1001   4096 3月  26 02:34 src
  
  l  运行./configure进行安装前的设置,主要设置安装路径、nginx cache purge插件模块目录、pcre库目录、zlib库目录。
  如果提示错误,可能缺少依赖的软件包,需先安装依赖包,再次运行./configure
  
  [iyunv@storage1 nginx-1.4.7]# ./configure --prefix=/usr/local/nginx --add-module=/usr/local/src/ngx_cache_purge-2.1--with-pcre=/usr/local/src/pcre-8.34/ --with-zlib=/usr/local/src/zlib-1.2.8
  
  l  运行make进行编译,确保编译成功。
  
  [iyunv@storage1 nginx-1.4.7]#make
  
  l  运行makeinstall进行安装。
  
  [iyunv@storage1 nginx-1.4.7]#make install
  
  l  至此nginx以及nginx cachepurge插件模块安装完成。
2.      配置
  l  编辑/usr/local/nginx/conf配置文件目录下的nginx.conf,设置负载均衡以及缓存。
  
  [iyunv@storage1 nginx-1.4.7]# vim /usr/local/nginx/conf/nginx.conf
  
  worker_processes  4;                  #根据CPU核心数而定
  events{
  worker_connections  65535;       #最大链接数
  use epoll;#新版本的Linux可使用epoll加快处理性能
  }
  http{
  #设置缓存参数
  server_names_hash_bucket_size 128;
  client_header_buffer_size32k;
  large_client_header_buffers 4 32k;
  client_max_body_size300m;
  sendfile        on;
  tcp_nopushon;
  proxy_redirectoff;
  proxy_set_headerHost $http_host;
  proxy_set_headerX-Real-IP $remote_addr;
  proxy_set_headerX-Forwarded-For $proxy_add_x_forwarded_for;
  proxy_connect_timeout 90;
  proxy_send_timeout 90;
  proxy_read_timeout 90;
  proxy_buffer_size16k;
  proxy_buffers 4 64k;
  proxy_busy_buffers_size128k;
  proxy_temp_file_write_size128k;
  #设置缓存存储路径、存储方式、分配内存大小、磁盘最大空间、缓存期限
  proxy_cache_path/var/cache/nginx/proxy_cache levels=1:2 keys_zone=http-cache:500m max_size=10ginactive=30d;
  proxy_temp_path/var/cache/nginx/proxy_cache/tmp;
  #设置group1的服务器
  upstreamfdfs_group1 {
  server172.16.1.203:8080 weight=1 max_fails=2 fail_timeout=30s;
  server172.16.1.204:8080 weight=1 max_fails=2 fail_timeout=30s;
  }
  #设置group2的服务器
  upstreamfdfs_group2 {
  server172.16.1.205:8080 weight=1 max_fails=2 fail_timeout=30s;
  server172.16.1.206:8080 weight=1 max_fails=2 fail_timeout=30s;
  }
  #设置group3的服务器
  upstreamfdfs_group3 {
  server172.16.1.207:8080 weight=1 max_fails=2 fail_timeout=30s;
  server172.16.1.208:8080 weight=1 max_fails=2 fail_timeout=30s;
  }
  
  server{
  #设置服务器端口
  listen       8080;
  #设置group1的负载均衡参数
  location/group1/M00 {
  proxy_next_upstream http_502http_504 error timeout invalid_header;
  proxy_cachehttp-cache;
  proxy_cache_valid  200 304 12h;
  proxy_cache_key $uri$is_args$args;
  proxy_pass http://fdfs_group1;
  expires30d;
  }
  #设置group2的负载均衡参数
  location/group2/M00 {
  proxy_next_upstream http_502http_504 error timeout invalid_header;
  proxy_cachehttp-cache;
  proxy_cache_valid  200 304 12h;
  proxy_cache_key $uri$is_args$args;
  proxy_pass http://fdfs_group2;
  expires30d;
  }
  #设置group3的负载均衡参数
  location/group3/M00 {
  proxy_next_upstream http_502http_504 error timeout invalid_header;
  proxy_cachehttp-cache;
  proxy_cache_valid  200 304 12h;
  proxy_cache_key $uri$is_args$args;
  proxy_pass http://fdfs_group3;
  expires30d;
  }
  #设置清除缓存的访问权限
  location~ /purge(/.*) {
  allow127.0.0.1;
  allow172.16.1.0/24;
  denyall;
  proxy_cache_purgehttp-cache  $1$is_args$args;
  }  
  
  l  至此,nginx以及nginx cachepurge插件模块设置完成。
3.      运行
  运行nginx之前,先要把防火墙中对应的端口打开(本例中为8080)。
  
  [iyunv@trackernginx-1.4.7]# iptables -I INPUT -p tcp -m state --state NEW -m tcp --dport 8080 -j ACCEPT
  [iyunv@trackernginx-1.4.7]# /etc/init.d/iptables save
  iptables:将防火墙规则保存到 /etc/sysconfig/iptables:[确定]
  
  启动nginx,确认启动是否成功。(查看是否对应端口8080是否开始监听)
  
  [iyunv@trackernginx-1.4.7]# /usr/local/nginx/sbin/nginx
  ngx_http_fastdfs_set pid=40638
  [iyunv@trackernginx-1.4.7]# netstat -unltp | grep nginx
  tcp    0    0.0.0.0:8080            0.0.0.0:*              LISTEN      40639/nginx
  
  l  尝试上传一个文件到FastDFS,然后访问试试。先配置client.conf文件。
  
  [iyunv@trackernginx-1.4.7]# vim /etc/fdfs/client.conf
  
  修改以下参数:
  base_path=/fdfs/tracker                    #日志存放路径
  tracker_server=172.16.1.202:22122          #tracker服务器IP地址和端口号
  http.tracker_server_port=8080              #tracker服务器的http端口号
  
  使用/usr/local/bin/fdfs_upload_file上传一个文件,程序会自动返回文件的URL。
  
  [iyunv@trackernginx-1.4.7]# /usr/local/bin/fdfs_upload_file /etc/fdfs/client.conf /mnt/monk.jpg
  group3/M00/00/00/rBABz1MzKG6Ad_hBAACKLsUDM60560.jpg
  
  然后使用浏览器访问:
  
  
  
  可以看到文件被正确读取出来了。
  
  查看nginx的access.log日志,可以看到访问返回200成功。
  
  [iyunv@trackernginx-1.4.7]# tail -n 10 -f /usr/local/nginx/logs/access.log
  172.16.1.201 - - [26/Mar/2014:13:15:00 +0800] "GET /group3/M00/00/00/rBABz1MzKG6Ad_hBAACKLsUDM60560.jpg HTTP/1.1" 200 35374 "-" "Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; rv:11.0) like Gecko"
  
  查看nginx的cache目录,可以看到已经生成了缓存文件。
  
  [iyunv@tracker nginx-1.4.7]# ll /var/cache/nginx/proxy_cache/ -R
  /var/cache/nginx/proxy_cache/:
  总用量 8
  drwx------. 3 nobody nobody 4096 3月  26 12:57 6
  drwxr-xr-x. 2 nobody root   4096 3月  26 13:14 tmp
  
  /var/cache/nginx/proxy_cache/6:
  总用量 4
  drwx------. 2 nobody nobody 4096 3月  26 13:08 11
  
  /var/cache/nginx/proxy_cache/6/11:
  总用量 36
  -rw-------. 1 nobody nobody 35686 3月  26 13:08 b1f6fb1f7266f796765b6d6965021116
  
  如果要手动清除缓存,可以在文件URL之前加上purge:
  
  l  设置开机自动启动。
  
  [iyunv@trackernginx-1.4.7]# vim /etc/rc.d/rc.local
  
  将运行命令行添加进文件:/usr/local/nginx/sbin/nginx
  
  至此,tracker服务器上的http反向代理+负载均衡+缓存已经安装完成。
二、      使用
1.      上传文件
  
  FastDFS提供了多种方式上传文件:
  l  使用fdfs_upload_file上传(之前已经有演示)
  l  使用C语言客户端接口上传
  l  使用PHP客户端接口上传
  l  使用Java客户端接口上传
  l  使用Python客户端接口上传
  l  使用.NET客户端接口上传
  
  根据具体情况选择使用。上传均支持断点续传。
  
2.      下载文件
  
  l  使用fdfs_download_file通过tracker服务器下载
  l  使用nginx通过http方式直接从storage下载(支持断点续传,作者推荐)
3.      监视服务器资源
  l  使用fdfs_monitor查看tracker和所有group的运行情况。
  
  [iyunv@tracker tmp]# /usr/local/bin/fdfs_monitor /etc/fdfs/client.conf
  2014-03-26 15:01:07] DEBUG - base_path=/fdfs/tracker, connect_timeout=30, network_timeout=60, tracker_server_count=1, anti_steal_token=0, anti_steal_secret_key length=0, use_connection_pool=0, g_connection_pool_max_idle_time=3600s, use_storage_id=0, storageserver id count: 0
  
  server_count=1, server_index=0
  
  tracker server is 172.16.1.202:22122
  
  group count: 3
  
  Group 1:
  group name = group1
  disk total space = 27789 MB
  disk free space = 23825 MB
  trunk free space = 0 MB
  storage server count = 2
  active server count = 2
  storage server port = 23000
  storage HTTP port = 8080
  store path count = 1
  subdir count per path = 256
  current write server index = 1
  current trunk file id = 0
  
  Storage 1:
  id = 172.16.1.203
  ip_addr = 172.16.1.203  ACTIVE
  http domain =
  version = 5.01
  join time = 2014-03-26 01:48:19
  up time =
  total storage = 27789 MB
  free storage = 23844 MB
  upload priority = 10
  store_path_count = 1
  subdir_count_per_path = 256
  storage_port = 23000
  storage_http_port = 8080
  current_write_path = 0
  source storage id=
  if_trunk_server= 0
  total_upload_count = 1
  success_upload_count = 1
  total_append_count = 0
  success_append_count = 0
  total_modify_count = 0
  success_modify_count = 0
  total_truncate_count = 0
  success_truncate_count = 0
  total_set_meta_count = 0
  success_set_meta_count = 0
  total_delete_count = 0
  success_delete_count = 0
  total_download_count = 0
  success_download_count = 0
  total_get_meta_count = 0
  success_get_meta_count = 0
  total_create_link_count = 0
  success_create_link_count = 0
  total_delete_link_count = 0
  success_delete_link_count = 0
  total_upload_bytes = 24
  success_upload_bytes = 24
  total_append_bytes = 0
  success_append_bytes = 0
  total_modify_bytes = 0
  success_modify_bytes = 0
  stotal_download_bytes = 0
  success_download_bytes = 0
  total_sync_in_bytes = 0
  success_sync_in_bytes = 0
  total_sync_out_bytes = 24
  success_sync_out_bytes = 24
  total_file_open_count = 1
  success_file_open_count = 1
  total_file_read_count = 0
  success_file_read_count = 0
  total_file_write_count = 1
  success_file_write_count = 1
  last_heart_beat_time = 2014-03-26 15:00:47
  last_source_update = 2014-03-26 13:13:55
  last_sync_update = 1970-01-01 08:00:00
  last_synced_timestamp = 1970-01-01 08:00:00
  Storage 2:
  id = 172.16.1.204
  ip_addr = 172.16.1.204  ACTIVE
  http domain =
  version = 5.01
  join time = 2014-03-26 18:53:19
  up time = 2014-03-26 18:53:19
  total storage = 27789 MB
  free storage = 23825 MB
  upload priority = 10
  store_path_count = 1
  subdir_count_per_path = 256
  storage_port = 23000
  storage_http_port = 8080
  current_write_path = 0
  source storage id= 172.16.1.203
  if_trunk_server= 0
  total_upload_count = 0
  success_upload_count = 0
  total_append_count = 0
  success_append_count = 0
  total_modify_count = 0
  success_modify_count = 0
  total_truncate_count = 0
  success_truncate_count = 0
  total_set_meta_count = 0
  success_set_meta_count = 0
  total_delete_count = 0
  success_delete_count = 0
  total_download_count = 0
  success_download_count = 0
  total_get_meta_count = 0
  success_get_meta_count = 0
  total_create_link_count = 0
  success_create_link_count = 0
  total_delete_link_count = 0
  success_delete_link_count = 0
  total_upload_bytes = 0
  success_upload_bytes = 0
  total_append_bytes = 0
  success_append_bytes = 0
  total_modify_bytes = 0
  success_modify_bytes = 0
  stotal_download_bytes = 0
  success_download_bytes = 0
  total_sync_in_bytes = 24
  success_sync_in_bytes = 24
  total_sync_out_bytes = 0
  success_sync_out_bytes = 0
  total_file_open_count = 1
  success_file_open_count = 1
  total_file_read_count = 0
  success_file_read_count = 0
  total_file_write_count = 1
  success_file_write_count = 1
  last_heart_beat_time = 2014-03-26 15:00:40
  last_source_update = 1970-01-01 08:00:00
  last_sync_update = 2014-03-27 03:38:23
  last_synced_timestamp = 2014-03-26 13:13:56 (-1s delay)
  
  Group 2:
  group name = group2
  disk total space = 27789 MB
  disk free space = 23825 MB
  trunk free space = 0 MB
  storage server count = 2
  active server count = 2
  storage server port = 23000
  storage HTTP port = 8080
  store path count = 1
  subdir count per path = 256
  current write server index = 0
  current trunk file id = 0
  
  Storage 1:
  id = 172.16.1.205
  ip_addr = 172.16.1.205  ACTIVE
  http domain =
  version = 5.01
  join time = 2014-03-26 19:37:36
  up time = 2014-03-26 19:37:36
  total storage = 27789 MB
  free storage = 23825 MB
  upload priority = 10
  store_path_count = 1
  subdir_count_per_path = 256
  storage_port = 23000
  storage_http_port = 8080
  current_write_path = 0
  source storage id=
  if_trunk_server= 0
  total_upload_count = 0
  success_upload_count = 0
  total_append_count = 0
  success_append_count = 0
  total_modify_count = 0
  success_modify_count = 0
  total_truncate_count = 0
  success_truncate_count = 0
  total_set_meta_count = 0
  success_set_meta_count = 0
  total_delete_count = 0
  success_delete_count = 0
  total_download_count = 0
  success_download_count = 0
  total_get_meta_count = 0
  success_get_meta_count = 0
  total_create_link_count = 0
  success_create_link_count = 0
  total_delete_link_count = 0
  success_delete_link_count = 0
  total_upload_bytes = 0
  success_upload_bytes = 0
  total_append_bytes = 0
  success_append_bytes = 0
  total_modify_bytes = 0
  success_modify_bytes = 0
  stotal_download_bytes = 0
  success_download_bytes = 0
  total_sync_in_bytes = 0
  success_sync_in_bytes = 0
  total_sync_out_bytes = 0
  success_sync_out_bytes = 0
  total_file_open_count = 0
  success_file_open_count = 0
  total_file_read_count = 0
  success_file_read_count = 0
  total_file_write_count = 0
  success_file_write_count = 0
  last_heart_beat_time = 2014-03-26 15:01:02
  last_source_update = 1970-01-01 08:00:00
  last_sync_update = 1970-01-01 08:00:00
  last_synced_timestamp = 1970-01-01 08:00:00
  Storage 2:
  id = 172.16.1.206
  ip_addr = 172.16.1.206  ACTIVE
  http domain =
  version = 5.01
  join time = 2014-03-26 22:38:04
  up time = 2014-03-26 22:38:04
  total storage = 27789 MB
  free storage = 23825 MB
  upload priority = 10
  store_path_count = 1
  subdir_count_per_path = 256
  storage_port = 23000
  storage_http_port = 8080
  current_write_path = 0
  source storage id= 172.16.1.205
  if_trunk_server= 0
  total_upload_count = 0
  success_upload_count = 0
  total_append_count = 0
  success_append_count = 0
  total_modify_count = 0
  success_modify_count = 0
  total_truncate_count = 0
  success_truncate_count = 0
  total_set_meta_count = 0
  success_set_meta_count = 0
  total_delete_count = 0
  success_delete_count = 0
  total_download_count = 0
  success_download_count = 0
  total_get_meta_count = 0
  success_get_meta_count = 0
  total_create_link_count = 0
  success_create_link_count = 0
  total_delete_link_count = 0
  success_delete_link_count = 0
  total_upload_bytes = 0
  success_upload_bytes = 0
  total_append_bytes = 0
  success_append_bytes = 0
  total_modify_bytes = 0
  success_modify_bytes = 0
  stotal_download_bytes = 0
  success_download_bytes = 0
  total_sync_in_bytes = 0
  success_sync_in_bytes = 0
  total_sync_out_bytes = 0
  success_sync_out_bytes = 0
  total_file_open_count = 0
  success_file_open_count = 0
  total_file_read_count = 0
  success_file_read_count = 0
  total_file_write_count = 0
  success_file_write_count = 0
  last_heart_beat_time = 2014-03-26 15:01:02
  last_source_update = 1970-01-01 08:00:00
  last_sync_update = 1970-01-01 08:00:00
  last_synced_timestamp = 1970-01-01 08:00:00
  
  Group 3:
  group name = group3
  disk total space = 27789 MB
  disk free space = 23825 MB
  trunk free space = 0 MB
  storage server count = 2
  active server count = 2
  storage server port = 23000
  storage HTTP port = 8080
  store path count = 1
  subdir count per path = 256
  current write server index = 1
  current trunk file id = 0
  
  Storage 1:
  id = 172.16.1.207
  ip_addr = 172.16.1.207  ACTIVE
  http domain =
  version = 5.01
  join time = 2014-03-26 22:50:28
  up time = 2014-03-26 22:50:28
  total storage = 27789 MB
  free storage = 23825 MB
  upload priority = 10
  store_path_count = 1
  subdir_count_per_path = 256
  storage_port = 23000
  storage_http_port = 8080
  current_write_path = 0
  source storage id= 172.16.1.208
  if_trunk_server= 0
  total_upload_count = 1
  success_upload_count = 1
  total_append_count = 0
  success_append_count = 0
  total_modify_count = 0
  success_modify_count = 0
  total_truncate_count = 0
  success_truncate_count = 0
  total_set_meta_count = 0
  success_set_meta_count = 0
  total_delete_count = 0
  success_delete_count = 0
  total_download_count = 0
  success_download_count = 0
  total_get_meta_count = 0
  success_get_meta_count = 0
  total_create_link_count = 0
  success_create_link_count = 0
  total_delete_link_count = 0
  success_delete_link_count = 0
  total_upload_bytes = 35374
  success_upload_bytes = 35374
  total_append_bytes = 0
  success_append_bytes = 0
  total_modify_bytes = 0
  success_modify_bytes = 0
  stotal_download_bytes = 0
  success_download_bytes = 0
  total_sync_in_bytes = 0
  success_sync_in_bytes = 0
  total_sync_out_bytes = 0
  success_sync_out_bytes = 0
  total_file_open_count = 1
  success_file_open_count = 1
  total_file_read_count = 0
  success_file_read_count = 0
  total_file_write_count = 1
  success_file_write_count = 1
  last_heart_beat_time = 2014-03-26 15:01:20
  last_source_update = 2014-03-27 03:20:13
  last_sync_update = 1970-01-01 08:00:00
  last_synced_timestamp = 1970-01-01 08:00:00
  Storage 2:
  id = 172.16.1.208
  ip_addr = 172.16.1.208  ACTIVE
  http domain =
  version = 5.01
  join time = 2014-03-26 22:49:37
  up time = 2014-03-26 22:49:37
  total storage = 27789 MB
  free storage = 23825 MB
  upload priority = 10
  store_path_count = 1
  subdir_count_per_path = 256
  storage_port = 23000
  storage_http_port = 8080
  current_write_path = 0
  source storage id=
  if_trunk_server= 0
  total_upload_count = 0
  success_upload_count = 0
  total_append_count = 0
  success_append_count = 0
  total_modify_count = 0
  success_modify_count = 0
  total_truncate_count = 0
  success_truncate_count = 0
  total_set_meta_count = 0
  success_set_meta_count = 0
  total_delete_count = 0
  success_delete_count = 0
  total_download_count = 0
  success_download_count = 0
  total_get_meta_count = 0
  success_get_meta_count = 0
  total_create_link_count = 0
  success_create_link_count = 0
  total_delete_link_count = 0
  success_delete_link_count = 0
  total_upload_bytes = 0
  success_upload_bytes = 0
  total_append_bytes = 0
  success_append_bytes = 0
  total_modify_bytes = 0
  success_modify_bytes = 0
  stotal_download_bytes = 0
  success_download_bytes = 0
  total_sync_in_bytes = 35374
  success_sync_in_bytes = 35374
  total_sync_out_bytes = 0
  success_sync_out_bytes = 0
  total_file_open_count = 1
  success_file_open_count = 1
  total_file_read_count = 0
  success_file_read_count = 0
  total_file_write_count = 1
  success_file_write_count = 1
  last_heart_beat_time = 2014-03-26 15:01:32
  last_source_update = 1970-01-01 08:00:00
  last_sync_update = 2014-03-27 03:20:19
  last_synced_timestamp = 2014-03-27 03:20:14 (-1s delay)
4.      其他功能
  l  使用fdfs_crc32获取文件CRC
  l  使用fdfs_delete_file删除文件
  l  使用fdfs_file_info查看文件属性信息
  
  以上所有功能均可使用接口在代码中调用。
  
三、      附录
  

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