FastDFS分布式文件系统的安装及配置

　　分布式文件系统（Distributed File System）是指文件系统管理的物理存储资源不一定直接连接在本地节点上，而是通过计算机网络与节点相连。分布式文件系统的设计基于客户机/服务器模式。一个典型的网络可能包括多个供多用户访问的服务器。另外，对等特性允许一些系统扮演客户机和服务器的双重角色。

　　FastDFS是一个开源的轻量级分布式文件系统，它对文件进行管理，功能包括：文件存储、文件同步、文件访问（文件上传、文件下载）等，解决了大容量存储和负载均衡的问题。特别适合以文件为载体的在线服务，如相册网站、视频网站等等。

　　一：安装FastDFS

　　1、首先安装libevent。

wgethttp://monkey.org/~provos/libevent-2.0.11-stable.tar.gz 
tar-zxvflibevent-2.0.11-stable.tar.gz 
cdlibevent-2.0.11-stable 
./configure--prefix=/usr 
makeclean 
make 
makeinstall

　　2、安装FastDFS的步骤

wgethttp://fastdfs.googlecode.com/files/FastDFS_v3.03.tar.gz 
tar-zxvfFastDFS_v3.03.tar.gz 
cdFastDFS 
vimmake.sh将#WITH_HTTPD=1修改成WITH_HTTPD=1以支持http 
./make.sh 
./make.shinstall

　　二：FastDFS的配置

　　1、配置及启动Tracker Server：

mkdir/home/fastdfs 
vi/etc/fdfs/tracker.conf 
base_path=/home/yuqing/fastdfs->base_path=/home/fastdfs 
http.server_port=8080->http.server_port=9090
##includehttp.conf->#includehttp.conf 
reserved_storage_space=4GB->reserved_storage_space=1GB

cd/usr/local/bin 
fdfs_trackerd/etc/fdfs/tracker.conf

检查tracker是否启动成功，可以查看如下文件/home/fastdfs/logs/trackerd.log：

[2011-10-2114:29:44]INFO-FastDFSv3.03,base_path=/home/fastdfs,run_by_group=,run_by_user=,connect_timeout=30s,network_timeout=60s,port=22122,bind_addr=,max_connections=256,work_threads=4,store_lookup=2,store_group=,store_server=0,store_path=0,reserved_storage_space=1024MB,download_server=0,allow_ip_count=-1,sync_log_buff_interval=10s,check_active_interval=120s,thread_stack_size=64KB,storage_ip_changed_auto_adjust=1,storage_sync_file_max_delay=86400s,storage_sync_file_max_time=300s,use_trunk_file=0,slot_min_size=256,slot_max_size=16MB,trunk_file_size=64MB 
[2011-10-2114:29:44]INFO-HTTPsupported:server_port=9090,default_content_type=application/octet-stream,anti_steal_token=0,token_ttl=0s,anti_steal_secret_keylength=0,token_check_failcontent_type=,token_check_failbufflength=0,check_active_interval=30,check_active_type=tcp,check_active_uri=/status.html

　　2、配置及启动Storage Server：

mkdir/home/fastdfs/fdfs_storage 
cd/etc/fdfs 
vistorage.conf 
base_path=/home/yuqing/fastdfs->/home/fastdfs/fdfs_storage 
store_path0=/home/yuqing/fastdfs->store_path0=/home/fastdfs/fdfs_storage 
group_name=group1
tracker_server=192.168.209.121:22122->tracker_server=173.252.200.228:22122 
##includehttp.conf->#includehttp.conf

　　接下来会出现很多mkdir data path，这是系统在创建数据目录。

[2011-10-2114:49:20]INFO-FastDFSv3.03,base_path=/home/fastdfs/fdfs_storage,store_path_count=1,subdir_count_per_path=256,group_name=group1,run_by_group=,run_by_user=,connect_timeout=30s,network_timeout=60s,port=23000,bind_addr=,client_bind=1,max_connections=256,work_threads=4,disk_rw_separated=1,disk_reader_threads=1,disk_writer_threads=1,disk_rw_direct=0,buff_size=256KB,heart_beat_interval=30s,stat_report_interval=60s,tracker_server_count=1,sync_wait_msec=50ms,sync_interval=0ms,sync_start_time=00:00,sync_end_time=23:59,write_mark_file_freq=500,allow_ip_count=-1,file_distribute_path_mode=0,file_distribute_rotate_count=100,fsync_after_written_bytes=0,sync_log_buff_interval=10s,sync_binlog_buff_interval=10s,sync_stat_file_interval=300s,thread_stack_size=512KB,upload_priority=10,if_alias_prefix=,check_file_duplicate=0,FDHTgroupcount=0,FDHTservercount=0,FDHTkey_namespace=,FDHTkeep_alive=0,HTTPserverport=8888,domainname= 
[2011-10-2114:49:20]INFO-HTTPsupported:server_port=8888,http_trunk_size=262144,default_content_type=application/octet-stream,anti_steal_token=0,token_ttl=0s,anti_steal_secret_keylength=0,token_check_failcontent_type=,token_check_failbufflength=0
[2011-10-2114:49:42]INFO-file:storage_param_getter.c,line:97,storage_ip_changed_auto_adjust=1,store_path=0,reserved_storage_space=1024MB,use_trunk_file=0,slot_min_size=0,slot_max_size=16MB,trunk_file_size=64MB 
[2011-10-2114:49:44]INFO-file:tracker_client_thread.c,line:304,successfullyconnecttotrackerserver173.252.200.228:22122,asatrackerclient,myipis173.252.200.228 
[2011-10-2114:50:14]INFO-file:tracker_client_thread.c,line:1100,trackerserver173.252.200.228:22122,settrackerleader:173.252.200.228:22122

　　三：测试及使用FastDFS

　　1、FastDFS之配置client：

vi/etc/fdfs/client.conf 
base_path=/home/yuqing/fastdfs->base_path=/home/fastdfs 
tracker_server=192.168.209.121:22122->tracker_server=173.252.200.228:22122 
http.tracker_server_port=8080->http.tracker_server_port=9090
##includehttp.conf->#includehttp.conf

　　2、测试上传文件：

cd~ 
fdfs_test/etc/fdfs/client.confuploadFastDFS_v3.03.tar.gz

　　执行成功后会出现如下提示：

ThisisFastDFSclienttestprogramv3.03 

Copyright(C)2008,HappyFish/YuQing 

FastDFSmaybecopiedonlyunderthetermsoftheGNUGeneral 
PublicLicenseV3,whichmaybefoundintheFastDFSsourcekit. 
PleasevisittheFastDFSHomePagehttp://www.csource.org/ 
formoredetail. 

[2011-10-2115:14:59]INFO-base_path=/home/fastdfs,connect_timeout=30,network_timeout=60,tracker_server_count=1,anti_steal_token=0,anti_steal_secret_keylength=0

tracker_query_storage_store_list_without_group: 
server1.group_name=group1,ip_addr=173.252.200.228,port=23000

group_name=group1,ip_addr=173.252.200.228,port=23000
storage_upload_by_filename 
group_name=group1,remote_filename=M00/00/00/rfzI5E6hG_O5wNKxAAVAc72y1Jc.tar.gz 
sourceipaddress:173.252.200.228 
filetimestamp=2011-10-2115:14:59 
filesize=344179
filecrc32=3182613655
fileurl:http://173.252.200.228:9090/group1/M00/00/00/rfzI5E6hG_O5wNKxAAVAc72y1Jc.tar.gz 
storage_upload_slave_by_filename 
group_name=group1,remote_filename=M00/00/00/rfzI5E6hG_O5wNKxAAVAc72y1Jc_big.tar.gz 
sourceipaddress:173.252.200.228 
filetimestamp=2011-10-2115:14:59 
filesize=344179
filecrc32=3182613655
fileurl:http://173.252.200.228:9090/group1/M00/00/00/rfzI5E6hG_O5wNKxAAVAc72y1Jc_big.tar.gz

　　3、测试下载文件

　　在浏览器中，输入上图中的url地址，tracker server会自动重定向到存储文件的storage server，文件下载成功。至此，已经成功搭建了FastDFS，编写你自己的client来进行访问吧！