hadoop大数据_第2页-阿里云

大数据面试题百日更新_Hadoop专题(Day06)

大数据面试题百日更新_Hadoop专题(Day06)在 NameNode HA 中，会出现脑裂问题吗？怎么解决脑裂

大数据实战项目：反爬虫系统（Lua+Spark+Redis+Hadoop框架搭建）第一阶段

33 课时 |

283 人已学 |

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大数据实战项目：反爬虫系统（Lua+Spark+Redis+Hadoop框架搭建）第二阶段

28 课时 |

248 人已学 |

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大数据实战项目：反爬虫系统（Lua+Spark+Redis+Hadoop框架搭建）第三阶段

25 课时 |

92 人已学 |

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大数据面试题百日更新_Hadoop专题(Day05)

6. Secondary NameNode 不能恢复 NameNode 的全部数据，那如何保证 NameNode 数据存储安全

大数据面试题百日更新_Hadoop专题(Day04)

5. Secondary NameNode 了解吗，它的工作机制是怎样的Secondary NameNode 是合并 NameNode 的 edit logs 到 fsimage 文件中；它的具体工作机制：（1）Secondary NameNode 询问 NameNode 是否需要 checkpo...

大数据面试题百日更新_Hadoop专题(Day01)

Hadoophadoop 中常问的有三块，第一：存储，问到存储，就把 HDFS 相关的知识点拿出来；第二：计算框架(MapReduce)；第三：资源调度框架(yarn)请说下 HDFS 读写流程这个问题虽然见过无数次，面试官问过无数次，但是就是有人不能完整的说下来，所以请务必记住。并且很多问题都...

大数据hadoop练习___出租车MRWordCount案例

WordCountDemo计算出10月1日这天每小时的载客量JobMainpackage input.mapreduceT1; import org.apache.hadoop.conf.Configuration; import org.apache.hadoop.fs.Path; import ...

大数据成长之路-- hadoop集群的部署(4)退役旧数据节点

退役旧数据节点目标：掌握HDFS在集群中删除掉无效节点的步骤第一步：创建dfs.hosts.exclude配置文件在namenod的cd /export/servers/hadoop-2.6.0-cdh5.14.0/etc/hadoop目录下创建dfs.hosts.exclude文件，并添加需要退役...

大数据成长之路-- hadoop集群的部署(3)HDFS新增节点

大数据成长之路-- hadoop集群的部署(3)6、HDFS新增节点服役新数据节点目标：掌握HDFS新添加节点到集群的步骤需求基础：随着公司业务的增长，数据量越来越大，原有的数据节点的容量已经不能满足存储数据的需求，需要在原有集群基础上动态添加新的数据节点。准备新节点第一步：复制一台新的虚拟机出来...

大数据成长之路------hadoop集群的部署(2)Hadoop集群安装部署

hadoop集群的部署Hadoop集群安装部署1、服务器主机名和IP配置（三台） 2、修改每个主机的/etc/hosts文件，添加IP和主机名的对应关系（三台） 3、管理节点到从节点配置无密码登录 4、配置jdk 1.8（三台） 5、关闭防火墙（三台） 6、关闭selinux（三台） vi /etc...

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更新时间 2024-04-11 11:01:02

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