Discover how Apache Hadoop can unleash the power of your data. This comprehensive resource shows you how to build and maintain reliable, scalable, distributed systems with the Hadoop framework -- an open source implementation of MapReduce, the algorithm on which Google built its empire. Programmers will find details for analyzing datasets of any size, and administrators will learn how to set up and run Hadoop clusters. This revised edition covers recent changes to Hadoop, including new features such as Hive, Sqoop, and Avro. It also provides illuminating case studies that illustrate how Hadoop is used to solve specific problems. Looking to get the most out of your data? This is your book. Use the Hadoop Distributed File System (HDFS) for storing large datasets, then run distributed computations over those datasets with MapReduce Become familiar with Hadoop’s data and I/O building blocks for compression, data integrity, serialization, and persistence Discover common pitfalls and advanced features for writing real-world MapReduce programs Design, build, and administer a dedicated Hadoop cluster, or run Hadoop in the cloud Use Pig, a high-level query language for large-scale data processing Analyze datasets with Hive, Hadoop’s data warehousing system Take advantage of HBase, Hadoop’s database for structured and semi-structured data Learn ZooKeeper, a toolkit of coordination primitives for building distributed systems "Now you have the opportunity to learn about Hadoop from a master -- not only of the technology, but also of common sense and plain talk."
--Doug Cutting, Cloudera
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详见：http://www.cnblogs.com/aprilrain/archive/2013/03/07/2947664.html
评分中文版412页： 所以理论上，任何东西都可以表示成二进制形式，然后转化成为长整型的字符串或直接对数据结构进行序列化，来作为键值。 原文460页： ..., so theoretically anything can serve as row key, from strings to binary representations of long or even serialized ...
评分买了第一版，时间太紧，没来得及看，后来出了个号称修订升级的第二版，毫不犹豫又买了，后来听说第二版比第一版翻译得好，心中窃喜，再后来看了第二版，我震惊了，我TM就是一傻子，放着好好的英文版不看，赶什么时髦买中文版呢。在这个神奇的国度，牛奶里放的是三聚氰胺，火腿...
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