Master Slave Blog

The traditional relational database has good performance and stability, at the same time, the historical test, many excellent database precipitation, such as MySQL. However, with the explosive growth of data volume and the increasing number of data types, many traditional relational database extensions have erupted. NoSQL database has emerged. However, different from the previous use of many NoSQL have their own limitations, which also led to the difficult entry. Here we share with you Shanghai Yan Technology and Technology Director Yan Lan Bowen - how to build efficient MongoDB cluster ...

Interview Questions & Answers for Hadoop MapReduce Developers (forward) blog Category: Forward Hadoopinterviewcloudera examCCD410 Transferred from Http://www.fromdev.com/2010/12/interview-questions-hadoop-map ...

As the most popular open source database, MySQL is widely used in Web applications and other small and medium-sized projects. However, in many large IT companies, MySQL has gradually deviated from the original open source version after being highly optimized and customized, more like a branch, such as the Webscalesql of Facebook, which was not long ago open source. 　　Recently, Mr. Xiong has published a blog post, from the perspective of large-scale web site architecture development of the changes in MySQL application, here for you to share. This article mainly describes the different and ...

Recently, the Yahoo Developer blog has sent an article introducing the Hadoop refactoring program (now this page has been deleted, the original URL: http://developer.yahoo.com/blogs/hadoop/posts/2011/02/maprmapre-nextgen/). Because they found that Hadoop encountered an extensibility bottleneck as the cluster reached 4000 machines, they were now ready to start refactoring Hadoop. Mapredu ...

1. List the machines used in general PC, requirements: Cpu:750m-1gmem: >128mdisk: >10g does not need too expensive machines. Machine Name: FINEWINE01FINEWINE02FINEWINE03 will finewine01 as the main node, and the other machine is from node. 2. Download and build from here Checkout, I choose Trunkhttp://svn.apache.org/repos/asf/lucen ...

With the development of our network, the development of science and technology, our network generated more and more data, more and more big, so big to what extent, 10000G so big? Tell you more than that! Is it 1000T that big? More than that, is already a single server can not solve, 　　So we can not use more than a few servers to solve it? It is cumbersome to write and read data separately for a single server. Then distributed file system came into being, it can govern many servers used to http://www.aliyun.co ...

http://www.aliyun.com/zixun/aggregation/13461.html"> MongoDB, formerly known as 10gen, was founded in 2007 and after receiving a total of $ 231 million in 2013, the company's market capitalization has risen to 10 Billion dollar level, which is the result of 20 years of Red Hat, a well-known open-source company founded in 1993. High performance and easy scalability have been the foundation of MongoDB and meanwhile standardized documents ...

On the traditional blog, micro-blog and the current popular light blog differences believe that many people are not very clear, the following according to their own understanding for everyone a simple explanation, first of all, blog, micro-blog, light blog to solve all of you in the Internet voice demand, previously in the Web 1.0 times we can only passively accept the content of the media, the greatest interaction is only to make comments and ratings, the user in addition to the value of the traffic is being despised. Blogs let ordinary netizens have a place where they can speak, giving them the opportunity to participate in the Internet ...

A preliminary understanding of Hadoop Blog Category: Cloud computing Hadoopmapreducegoogle Framework &http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; What is 1:hadoop, he is a solution, is a distributed processing solution that can handle large amount of data, he is go ...

Refer to Hadoop_hdfs system dual-machine hot standby scheme. PDF, after the test has been added to the two-machine hot backup scheme for Hadoopnamenode 1, foreword currently hadoop-0.20.2 does not provide a backup of name node, just provides a secondary node, although it is somewhat able to guarantee a backup of name node, when the machine where name node resides ...