摘要： Understanding Virtual Memory by Norm Murray and Neil Horman Introduction Definitions The Life of a Page Tuning the VM Example Scenarios Further R... 阅读全文

摘要： 近些年来Hadoop生态系统发展迅猛，它本身包含的软件越来越多，同时带动了周边系统的繁荣发展。尤其是在分布式计算这一领域，系统繁多纷杂，时不时冒出一个系统，号称自己比MapReduce或者Hive高效几十倍，几百倍。有一些无知的人，总是跟着瞎起哄，说Impala将取代Hive，Spark将取代H... 阅读全文

摘要： In this tutorial I will describe how to write a simpleMapReduce program for Hadoop in thePython programming language. Motivation Even though the H... 阅读全文

摘要： HDFS 2 architecture YARN architecture 阅读全文

摘要： For early Hbase developers, it is often a nightmare to understand how the different modules speak among themselves and what. This comes in handy to ... 阅读全文

摘要： HBase architecture follows the traditional master slave model where you have a master which takes decisions and one or more slaves which does the re... 阅读全文

摘要： 简介： 最近在写MapReduce程序处理日志时，需要解析JSON配置文件，简化Java程序和处理逻辑。但是Hadoop本身似乎没有内置对JSON文件的解析功能，我们不得不求助于第三方JSON工具包。这里选择json-simple实现我们的功能。 在Hadoop上执行Java程序的命令如下所... 阅读全文

摘要： Linearizability and Sequential Consistency a) A sequentially consistent data store. b) A data store that is not sequentially con... 阅读全文

摘要： GFS: Evolution on Fast-forward by Marshall Kirk McKusick, Sean Quinlan | August 7, 2009 A discussion between Kirk McKusick and Sean Quinlan aboutth... 阅读全文

摘要： HBase vs. BigTable Comparison HBase is an open-source implementation of the Google BigTable architecture. That part is fairly easy to understand ... 阅读全文