The hansh value of BT seeds is calculated. Recently, I am suddenly interested in BT seeds (do not ask why)
1. BT seeds (concept)
BT is a distributed file distribution protocol. Each file downloader continuously uploads downloaded data to other Downloaders while downloading. This ensures that the faster the download, the faster the upload, to implement notification download
2. How does BT download and upload files simultaneously?
Starting from the file itself, the BT file contains two parts of
1. Required installation Package
Libfastcommon-master.zipFastdfs_v5.05.tar.gzFastdfs-nginx-module_v1.16.tar.gzNginx-1.8.0.tar.gz 2. Install Libfastcommon Package
The following dependencies need to be installed before the ① is installed Libfastcommon (the system does not need to be installed if it has one):Yum install-y gccYum Install-y gcc-c++
② Decompression Libfastcommon-master.zipUnzip Libfastcommon-master.zip
③ compilationCD Libfastcommon-master./make.sh
④ Installation./make.sh install 3. In
value with the new value received from the client. Finally, we call SaveChages to save the object.
8-7 manually synchronize object graphs and change trackers
Problem
You want to manually synchronize your POCO class and change the tracker.
The update tracker accesses the object information that is being tracked by the Entity Framework. The information is not only the values stored in the object attributes
Name
Value
Description
DFS. Default. Chunk. View. Size
32768
The size of each file displayed on the HTTP access page of namenode usually does not need to be set.
DFS. datanode. Du. Reserved
1073741824
The size of the space reserved by each disk, which must be set to be used mainly for non-HDFS files. The default value is not reserved, and the value is 0 bytes.
DFS. Name. dir
/Opt/data1/HDFS/Name,/Opt/data2/HDFS/Name,/Nfs/data/HDFS/Name
We recomm
BT source code learning experience (7): Code Analysis of Tracking Server (HTTP protocol processing object)Author: Wolfenstein (neversaynever)
The last time we analyzed the initialization process of the tracker class, we started to look at how the tracking server provides services.First, we analyze that the tracker processing object is httphandler, which is defined in BitTorrent/httphandler. py. The initiali
The USB Nic is divided into wireless 3G and wired, and wireless 3G Nic has been implemented by my colleagues. I recently implemented wired Nic. That is, connect to the mid through RJ45 to USB, and the driver will register the ethx network device. What I want to achieve is to operate the network device.
Connectivityservice is a service that manages connections. It manages multiple network types of tracker, such as wifistatetracker and mobiledatastatet
Install and configure FastDFS_v5.05 on CentOS
FastDFS_v5.05 is installed on the new server. There are still many changes compared with FastDFSV3.02. Now we will record the installation and configuration process for your reference. For security considerations, where IP addresses are involved, you can use IP202.98.27.31 at will. When the traffic is low, you can deploy tracker and storage on the same server. Later, you can scale the
, which includes characteristic, such as "heart rate measurement". You can find a series of profiles and service based on GATT in bluetooth.org.Roles and ResponsibilitiesHere are the roles and responsibilities that apply when an Android device interacts with a BLE device:Center Device (Central) with peripheral devices (peripheral). This also applies to the BLE connection itself. The central device is scanned for advertisenment,peripheral devices to emit advertisement.GATT Server (server) and gat
Brief Introduction in Testlink and bug management system integration must have the following features:1. All communication between the Testlink and the Bug management system isDatabaseCompleted in. 2. Testlink (now version) can neither send information to the bug management system nor receive information from the bug management system, but simply call.TestLink1.9.13 and Mantis1.2.19 integration1, Issue Tracker Management configurationClick "Home-sys
and is in the application layer of the TCP/IP architecture. According to the BitTorrent protocol, a file publisher will provide a. torrent file, which is a seed file, or "seed", based on the file to be published. The torrent file is essentially a text file that contains tracker information and file information in two parts. Tracker information is mainly used in BT download the address of the
It was ant when I got in touch with my computer and used the software to download it. Then we used the BT tool. Now there are countless software downloads, however, we still need to know about the BitTorrent protocol. This is also the specification for BT seeds and BT downloads. For normal HTTP/FTP downloads, the TCP/IP protocol is used, the BitTorrent protocol is a P2P File Transfer Protocol Based on the TCP/IP protocol, which is at the application layer of the TCP/IP structure. BitTorrent also
I believe that those who have experience in Online downloads will certainly not be unaware of the BitTorrent protocol. This protocol supports what we often call "BT" downloads. Here are some basic information about this protocol. It also includes its specific working principles, hoping to let everyone know about this part.
Common HTTP/FTP downloads use the TCP/IP protocol. BitTorrent is a P2P File Transfer Protocol Based on the TCP/IP protocol, it is in the application layer of the TCP/IP struct
)The audio Listener acts as a microphone-like device. It receives input from any given audio source in the scene and plays the sound through the computer speakers. For most applications, it is most interesting to attach the listener to the camera. If the audio Listener is within the reverb region (Reverb Zone) boundary, the reverb is applied to all audible sounds in the scene. (Professional Edition only) Also, the audio Effect can be applied to the listener and will be applied to all audible sou
Continue the previous chapter to organize the HDFs related configuration items
Name
Value
Description
Dfs.default.chunk.view.size
32768
The content display size for each file in the HTTP access page of Namenode, usually without setting.
Dfs.datanode.du.reserved
1073741824
The amount of space reserved for each disk needs to be set up, mainly for non-HDFS files, default is not reserved, 0 bytes
Dfs.name.dir
Fourth Chapter pricing AdvancedSo far, we have considered the sale of a product. But what happens when you sell several products, or several versions of a product at the same time?Version controlEach potential user has a psychological price to buy the product. To see our previous example, Belinda (bargain Buyer) and Stewart (student) will only use time Tracker 3000 for free. Willhelm pay a maximum of$, and Pat can accept a maximum price of$. Then we a
The downloading of a seed file into a magnetic link the downloading of the BT magnetic conversion tool can convert the BT seed file into a magnetic link. I believe many friends will use it. After all, the seed file already exists in the form of an attachment file, it also requires server storage and BT Tracker for downloading. Now the problem is that more and more servers are killed, and the server of the plug-in is almost finished. It is time to down
Minimal installation of linux CentOS-6.6 after fastdfs +Install necessary software yum-y install wget gcc perl mkdir ~ /Zy cd ~ /Zy install: libfastcommon download: wget https://codeload.github.com/happyfish100/libfastcommon/tar.gz/V1.0.7 unzip: tar-zxvf V1.0.7 enter the decompressed directory cd libfastcommon-1.0.7/execute the command. /make. sh. /make. sh install, so you need to create a soft link. ln-s/usr/lib64/libfastcommon. so/usr/local/lib/libfastcommon. soln-s/usr/lib64/libfastcommon. so
introduction of Peer-to-peer and DHT technology
Peer-to-peer in the mind can be said to be the Internet thought/spirit/philosophy is very concentrated embodiment of common participation, transparent open, equal sharing (reminds me of the previous study, is now the crazy speculation of the "centralized" system of cloud computing). There are many applications based on Peer-to-peer technology, including file sharing, instant messaging, collaborative processing, streaming media communication and s
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.