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Hadoop 教程 第2页

Hadoop教程,Hadoop面试题,Hadoop源码解析,Hadoop安装,Hadoop性能调优

十三、Hadoop Mapper

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文章永久连接:https://tech.souyunku.com/?p=8000 MapReduce – Mapper 主要是读取InputSplit的每一个Key,Value对并进行处理 public class Mapper...

十二、Hadoop 读取数据

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文章永久连接:https://tech.souyunku.com/?p=8002 MapReduce – 读取数据 通过InputFormat决定读取的数据的类型,然后拆分成一个个InputSplit,每个InputSplit对...

十一、Hadoop Failover

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文章永久连接:https://tech.souyunku.com/?p=8004 YARN – Failover 失败类型 1、 程序问题 2、 进程崩溃 3、 硬&#x#x4EF6;问题 失败处理 任务...

十、Hadoop Container

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文章永久连接:https://tech.souyunku.com/?p=8006 YARN – Container 1、 基本的资源单位(CPU、内存等) 2、 Container可以加载任意程序,而且不限于Java 3、 一&...

九、Hadoop ApplicationMaster

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文章永久连接:https://tech.souyunku.com/?p=8008 YARN – ApplicationMaster 单个作业的资源管理和任务监控 具体功能描述#x8FF0;: 1、 计算应用的资源需求,资...

八、Hadoop NodeManager

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文章永久连接:https://tech.souyunku.com/?p=8010 YARN – NodeManager Node节点下的Container管理 1、 启动时向ResourceManager注册并定时发&&...

七、Hadoop ResourceManager

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文章永久连接:https://tech.souyunku.com/?p=8012 YARN – ResourceManager 负责全局的资源管理和任务调度,把整个集群当&##x6210;计算资源池,只关...

六、Hadoop 命令工具

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文章永久连接:https://tech.souyunku.com/?p=8014 HDFS – 命令工具 fsck: 检查文件的完整性 start-balancer.sh: 重新平衡HDFS hdfs dfs -copyFrom...

五、Hadoop 可靠性

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文章永久连接:https://tech.souyunku.com/?p=8016 HDFS – 可靠性 1、 DataNode可以失效 DataNode会定时发送心跳到NameNode。如果ղ\#x5728;一段时间内NameN...

四、Hadoop 读文件

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文章永久连接:https://tech.souyunku.com/?p=8018 HDFS – 读文件 1、 客户端向NameNode发送读取请求 2、 NameNode#x8FD4;回文件的所有block和这些bloc...

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