Getting started with fastdfs

distributed file system

	 All of the file system , Distributed storage on multiple hosts , Form a complete file system .

Basic structure of distributed file system

 Manager   Can store data   It's also possible not to store data 

fastDFS summary

c An open source distributed file system written in 

fastDFS characteristic

1. Application level file system 
2. You can't mount , Namely   You can't  mount  operation 

fastDFS The three roles and the relationship between them

role :

	1.  Tracker  - tracker
	2.  Storage nodes  - storage
	3.  client  - client

Relationship :

1. client  and  storage  Active connection Tracker
2. storage  Active direction  tracker  The report   State information 
		 Disk remaining 、 File synchronization status 、 File upload and download times 
3.Storage  It will start   A single thread   Yes  Tracker  Connection and regular report 
3.  A group contains storage  It is not set through the configuration file , adopt tracker  Acquired 

fastDFS Capacity expansion

1. Lateral capacity 
	 Add capacity 
	 increase group Group 
2.  The longitudinal expansion 
	 The data backup 
	 The maximum capacity currently rented ( The storage node with the smallest capacity )
	 All storage node group names must be the same 

fastDFS install

1. install

#  Basic library package 
# libfastcommon-1.36.zip
./make.sh
sudo ./make.sh install
# fastDFS
# fastdfs-5.10.tar.gz
./make.sh
sudo ./make.sh install

2. Test for successful installation
   fdfs_test

fastDF To configure

# 1.  Default profile location 
# /etc/fdfs

#2. Tracker( Tracker )
#  Modify the configuration file 
bind_addr=192.168.82.253  # Current host ip
port=22122 #  Bound port 
base_path=/home/root/fastDFS/tracker # log Catalog 
#  start-up Tracker  service 
fdfs_trackerd /etc/fdfs/tracker.conf
sudo fdfs_trackerd /etc/fdfs/tracker.conf restart
sudo fdfs_trackerd /etc/fdfs/tracker.conf stop

#3.stroage( Storage nodes )
#  Modify the configuration file 
group_name=group1 #  The group to which the storage node belongs 
bind_addr=192.168.82.253 #  Storage node bound ip
port=23000 #  Bound port 
base_path=/home/root/fastDFS/storage #  Number of storage directories 
store_path0=/home/root/fastDFS/storage #  Configure specific storage directories 
tracker_server=192.168.82.252:22122 #  Connect tracker  Used when ip And port 
#  start-up storage  service 
fdfs_storaged /etc/fdfs/storage.conf
sudo fdfs_storaged /ect/fdfs/storage.conf restart
sudo fdfs_storaged /etc/fdfs/storage.conf stop

#4. Client 
base_path=/home/root/fastDFS/client # log  Log directory 
tracker_server=192.168.82.253:22122 #  Connect tracker  It's time to ip And port letter 

#  Detect current fdfs  Whether the environment is accessible 
fdfs_monitor /etc/fdfs/client.conf #  appear  active  Is normal