环境介绍:

1: 公司目前有5个项目 A B C D E  日后可能会有所增加.

2: 使用fastdfs存储这5各项目的文件,要求各各项目的文件分开存储,也就是每个项目的文件存储到一个固定的位置.

3:  三台机器ip地址分配如下

tracker角色 IP:192.168.1.219

storageA角色 IP: 192.168.1.215

storageB角色  IP:192.168.1.216

4: 这里主要记录下实现思路,具体的配置方法都很简单.

---------tracker这台机器  主要有两个服务 fdfs_tracker   和 nginx---------------

tracker.conf的配置文件很简单这里不贴出来了

nginx的配置文件如下:   nginx负责把访问请求转发给后台的两台storage.

[root@trackerB ~]# cat /usr/local/nginx/conf/nginx.conf | grep -v "#" | grep -v "^$"

user  www;

worker_processes  1;

error_log  logs/error.log;

events {

worker_connections  1024;

}

http {

include       mime.types;

default_type  application/octet-stream;

server_names_hash_bucket_size 128;

client_header_buffer_size 32k;

large_client_header_buffers 4 32k;

client_max_body_size 300m;

sendfile        on;

tcp_nopush     on;

keepalive_timeout  120;

gzip  on;

gzip_min_length 1k;

gzip_buffers 4 16k;

gzip_http_version 1.1;

gzip_comp_level 2;

gzip_types text/plain application/x-javascript text/css application/xml;

gzip_vary on;

gzip_disable "MSIE[1-6].";

proxy_redirect off;

proxy_set_header Host $http_host;

proxy_set_header X-Real-IP $remote_addr;

proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

proxy_connect_timeout 90;

proxy_send_timeout 90;

proxy_read_timeout 90;

proxy_buffer_size 16k;

proxy_buffers 4 64k;

proxy_busy_buffers_size 128k;

proxy_temp_file_write_size 128k;

log_format  access  '$remote_addr - $remote_user [$time_local] "$request" '

'$status $body_bytes_sent "$http_referer" '

'"$http_user_agent" "$upstream_addr" "$upstream_response_time" "$host"';

proxy_cache_path /var/cache/nginx/proxy_cache levels=1:2 keys_zone=http-cache:500m max_size=10g inactive=30d;

proxy_temp_path /var/cache/nginx/proxy_cache/tmp;

upstream group1 {

server 192.168.1.215:80;

server 192.168.1.216:80;

}

server {

listen       80;

server_name  image.ty.com;

location ~* /group1/(M00|M01|M02|M03|M04|M05) {                #这里我使用了6个存储路径,每个项目一个

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://group1;

expires 3d;

}

access_log  logs/image.access.log  access;

location / {

root   html;

index  index.html index.htm;

}

error_page   500 502 503 504  /50x.html;

location = /50x.html {

root   html;

}

}

include /usr/local/nginx/conf/vhost/*.conf;

}

---------------storage角色的两台机器-------------------

这两天机器的配置完全一样. 都运行了fdfs_storage 和 nginx , 其中nginx添加了fastdfs模块

fdfs_storage的配置文件storage.conf内容如下:

[root@localhost ~]# cat /etc/fdfs/storage.conf | grep -v "^#" | grep -v "^$"

disabled=false

group_name=group1

bind_addr=

client_bind=true

port=23000

connect_timeout=30

network_timeout=60

heart_beat_interval=30

stat_report_interval=60

base_path=/data/

max_connections=256

buff_size = 256KB

accept_threads=1

work_threads=4

disk_rw_separated = true

disk_reader_threads = 1

disk_writer_threads = 1

sync_wait_msec=50

sync_interval=0

sync_start_time=00:00

sync_end_time=23:59

write_mark_file_freq=500

store_path_count=6                一共 store_path0-5 六个存储路径.

store_path0=/data/data1

store_path1=/data/data2

store_path2=/data/data3

store_path3=/data/data4

store_path4=/data/data5

store_path5=/data/data6

subdir_count_per_path=256

tracker_server=192.168.1.219:22122

log_level=info

run_by_group=

run_by_user=

allow_hosts=*

file_distribute_path_mode=0

file_distribute_rotate_count=100

fsync_after_written_bytes=0

sync_log_buff_interval=10

sync_binlog_buff_interval=10

sync_stat_file_interval=300

thread_stack_size=512KB

upload_priority=10

if_alias_prefix=

check_file_duplicate=0

file_signature_method=hash

key_namespace=FastDFS

keep_alive=0

use_access_log = false

rotate_access_log = false

access_log_rotate_time=00:00

rotate_error_log = false

error_log_rotate_time=00:00

rotate_access_log_size = 0

rotate_error_log_size = 0

log_file_keep_days = 0

file_sync_skip_invalid_record=false

use_connection_pool = false

connection_pool_max_idle_time = 3600

http.domain_name=

http.server_port=8888

nginx配置文件如下

[root@localhost ~]# cat /usr/local/nginx/conf/nginx.conf | grep -v "^#" | grep -v "^$"

worker_processes  1;

events {

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;

keepalive_timeout  65;

client_max_body_size 2m;

server {

listen       80;

server_name  localhost;

#charset koi8-r;

access_log  logs/host.access.log  main;

location /group1/M00 {                        #根据请求路径配置对应的存储路径.

root   /data/data1;

ngx_fastdfs_module;                      #使用nginxmodule处理请求

}

location /group1/M01 {

root   /data/data2;

ngx_fastdfs_module;

}

location /group1/M02 {

root   /data/data3;

ngx_fastdfs_module;

}

location /group1/M03 {

root   /data/data4;

ngx_fastdfs_module;

}

location /group1/M04 {

root   /data/data5;

ngx_fastdfs_module;

}

location /group1/M05 {

root   /data/data6;

ngx_fastdfs_module;

}

error_page   500 502 503 504  /50x.html;

location = /50x.html {

root   html;

}

}

include /usr/local/nginx/conf/vhosts/*.conf;

}

nginx的fastdfs模块的配置文件如下:

[root@localhost ~]# cat /etc/fdfs/mod_fastdfs.conf | grep -v "^#" | grep -v "^$"

connect_timeout=2

network_timeout=30

base_path=/tmp

load_fdfs_parameters_from_tracker=true

storage_sync_file_max_delay = 86400

use_storage_id = false

storage_ids_filename = storage_ids.conf

tracker_server=192.168.1.219:22122

storage_server_port=23000

group_name=group1

url_have_group_name = true

store_path_count=6

store_path0=/data/data1

store_path1=/data/data2

store_path2=/data/data3

store_path3=/data/data4

store_path4=/data/data5

store_path5=/data/data6

log_level=info

log_filename=/var/log/mod_fastdfs.log

response_mode=proxy

if_alias_prefix=

flv_support = true

flv_extension = flv

group_count = 0

-----------------以上就是用到的所有配置文件----------------------------

想实现按照不通的项目存储到不同的路径,主要通过代码来实现    以java为例

首先: 我们可以通过tracker获取一个可以使用的storage的ip,   -------java代码如下---------

/**
 * 获得可用的storage IP
 * 
 * @param trackerClient
 * @param trackerServer
 * @return 返回storage IP
 */
private static String getStorageServerIp(TrackerClient trackerClient, TrackerServer trackerServer) {
String storageIp = null;
if (trackerClient != null && trackerServer != null) {
try {
StorageServer storageServer = trackerClient.getStoreStorage(trackerServer, STORAGE_SERVER_GROUP);
storageIp = storageServer.getSocket().getInetAddress().getHostAddress();
} catch (IOException e) {
e.printStackTrace();
}
}
log.info("——获取组中可用的storage IP——" + storageIp);
return storageIp;
}

其次:可以根据获取的ip把需要上传的文件指定到要上传到的路径里面

/**
 * 得到Storage服务
 * 
 * @param storageIp
 * @return 返回Storage服务
 */
private static StorageServer getStorageServer(String storageIp) {
StorageServer storageServer = null;
if (storageIp != null && !("").equals(storageIp)) {
try {
storageServer = new StorageServer(storageIp, Integer.parseInt(STORAGE_SERVER_PORT), Integer.parseInt(STORAGE_SERVER_M00));
} catch (IOException e) {
e.printStackTrace();
}
}
log.info("——storage server生成");
return storageServer;
}

这样就通过fastdfs支持多路径这个功能实现了不同项目分开存储的需求.

Linux下也有对应的命令:[root@localhost ~]# fdfs_upload_file -h

Usage: fdfs_upload_file <config_file> <local_filename> [storage_ip:port] [store_path_index]

[root@localhost ~]# fdfs_upload_file /etc/fdfs/storage.conf anni.jpg 192.168.1.215:23000 5

group1/M05/00/D4/wKgB11W4SQGASXcFAAFAB2RsPpA542.jpg