机群搭建好,执行自带wordcount时出现: Input path does not exist: hdfs://ns1/user/root/a.txt 此错误. [root@slave1 hadoop]# ls a.txt dfs1 include libexec name sbin test tmp2 bin etc journal LICENSE.txt NOTICE.txt share tmp zookeeper.out dat…
1.安装 Red Hat 环境 2.安装JDK 3.下载hadoop2.8.0 http://mirrors.tuna.tsinghua.edu.cn/apache/hadoop/common/hadoop-2.8.0/hadoop-2.8.0.tar.gz 4.在用户目录下新建hadoop文件夹,并解压hadoop压缩包 mkdir Hadoop tar -zxvf hadoop-2.8.0.tar.gz 5.为hadoop配置JAVA_HOME [xxx@localhost ~]$ cd h…
1.查看hadoop版本 [hadoop@ltt1 sbin]$ hadoop version Hadoop -cdh5.12.0 Subversion http://github.com/cloudera/hadoop -r dba647c5a8bc5e09b572d76a8d29481c78d1a0dd Compiled by jenkins on --29T11:33Z Compiled with protoc From source with checksum 7c45ae7a4592c…