Hadoop端口介绍
9000 namenode的常用端口 给机子
8020 namenode的RPC调用端口(接收Client连接的RPC端口,用于获取文件系统metadata信息)
50070 namenode http HDFS查看端口 web
50470 https 查看HDFS端口
50090 secondaryNamenode
8088 ResourceManager YARN集群端口
8089 Web Application Proxy web代理
10020 JobHistory(host)
19888 JobHistory (web)
8030-8033 resourcemanage组件
Hadoop各种启动命令列表
Start-all.sh/Stop-all.sh 开启关闭所有进程
Start-dfs.sh 开启hdfs 进程
Start-yarn.sh 开启yarn进程
Hadoop namenode –format 对HDFS进行格式化
hadoop-daemon.sh start namenode 单独启动namenode
hadoop-daemons.sh start datanode 单独启动datanode
yarn-daemon.sh start resourcemanager 启动resourcemanager
yarn-daemons.sh start nodemanager 启动nodemanager
yarn-daemon.sh start proxyserver 启动yarn日志代理服务
mr-jobhistory-daemon.sh start historyserver 启动MR的jobhistory服务 历史服务器开启
Hadoop的基准测试
Yarn jar hadoop-mapreduce-client-joblient-tests.jar TestDFSIO –write
–nrFiles 10 –size 1000MB
Yarn jar hadoop-mapreduce-client-joblient-tests.jar TestDFSIO –read
–nrFiles 10 –size 1000MB
Yarn jar hadoop-mapreduce-client-joblient-tests.jar TestDFSIO –clean