Hadoop

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Hadoop includes these modules:

• Hadoop Common: The common utilities that support the other Hadoop modules.
• Hadoop Distributed File System (HDFS): A distributed file system that provides high-throughput access to application data. （分布式存数据）
• Hadoop YARN: A framework for job scheduling and cluster resource management.（资源管理和调度）
• Hadoop MapReduce: A YARN-based system for parallel processing of large data sets.（分布式并行计算）