In the past, we have introduced some principles of software development, such as the 10 commandments of high quality code and the UNIX design principles described in the UNIX legend (next article). I believe that you can learn from middle school some knowledge of design principles, as I said in the "How Do I Recruit procedures", a good programmer usually consists of its operational skills, knowledge level, experience level and ability four aspects. Here I would like to talk about some of the principles of design, I think these things belong to the long-term experience summed up knowledge. These principles should be understood by every programmer. But...
PageRank algorithm PageRank algorithm is Google once Shong "leaning against the Sky Sword", The algorithm by Larry Page and http://www.aliyun.com/zixun/aggregation/16959.html "> Sergey Brin invented at Stanford University, the paper download: The PageRank citation ranking:bringing order to the ...
This article is my second time reading Hadoop 0.20.2 notes, encountered many problems in the reading process, and ultimately through a variety of ways to solve most of the. Hadoop the whole system is well designed, the source code is worth learning distributed students read, will be all notes one by one post, hope to facilitate reading Hadoop source code, less detours. 1 serialization core Technology The objectwritable in 0.20.2 version Hadoop supports the following types of data format serialization: Data type examples say ...
RAINBRURPG is a 3D multiplayer online role-playing game based on Ogre3d and C++egui. It is designed using C + + and http://www.aliyun.com/zixun/aggregation/13430.html ">ruby modules, based on object-oriented design, and based on the concept of Wiki community." RAINBRURPG 0.0.5-242 This release fixes some bugs and updates its texinfo manuals. Except the wrong ...
Test Tool YCSB Installation YCSB Introduction: YCSB (Yahoo! Cloud serving Benchmark) is Yahoo Open source of a common performance testing tool. Can be used to test a variety of NoSQL products. Related instructions can refer to https://github.com ...
Several years of work down, also used several kinds of database, accurate point is "database management system", relational database, there are nosql. Relational database: 1.MySQL: Open source, high performance, low cost, high reliability (these features tend to make him the preferred database for many companies and projects), for a large scale Web application, we are familiar with such as Wikipedia, Google, and Facebook are the use of MySQL. But the current Oracle takeover of MySQL may give us the prospect of using MySQL for free ...
Pig is a Yahoo donated project to Apache and is currently in the Apache incubator, but the basic functionality is already available. Today I would like to introduce you to this useful pig.pig is Sql-like language, is built on the mapreduce of an advanced query language, Some operations are compiled into the MapReduce model's map and reduce, and users can define their own capabilities. Yahoo Grid Computing department developed another clone of Google's project: Sawzall. Supported operations ...
The intermediary transaction SEO diagnoses Taobao guest Cloud host Technology Hall This article, it was written six months ago. At that time just as a case for the group of friends to carry out the analysis and summary. Half a year past, the rankings remain unchanged. Looking back, wrote so many SEO aspects of the article, this article is more classic, Analyze it from all angles. So the summary, ADMIN5 starting. The following are some analysis of relevant participants and my comments. First of all, I feel very relieved to see everyone's analysis, know that everyone has to seriously to learn, and analysis is also relatively in place ...
Overview Hadoop on Demand (HOD) is a system that can supply and manage independent Hadoop map/reduce and Hadoop Distributed File System (HDFS) instances on a shared cluster. It makes it easy for administrators and users to quickly build and use Hadoop. Hod is also useful for Hadoop developers and testers who can share a physical cluster through hod to test their different versions of Hadoop. Hod relies on resource Manager (RM) to assign nodes ...
Objeck programming language is an object-oriented computer language with features of Java, C #, and Pascal. In this language, all http://www.aliyun.com/zixun/aggregation/18278.html > Data types are treated as objects. The language consists of a compiler and a virtual machine with a memory management and JIT compiler. Objeck Programming L ...
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