Hadoop HDFS的常用命令

【Hadoop HDFS的常用命令】的更多相关文章

[b0002] Hadoop HDFS cmd常用命令练手

目的: 学会HDFS CLI 常用操作环境: Hadoop 2.6.4 伪分布式版环境搭建参考本博客前篇文章: 伪分布式 hadoop 2.6.4 帮助: hadoop@ssmaster:~$ hadoop fs Usage: hadoop fs [generic options] [-appendToFile <localsrc> ... <dst>] [-cat [-ignoreCrc] <src> ...] [-checksum <src> ...…

Hadoop HDFS的常用命令

1.将目录/root/data/下的item.txt复制到HDFS下的/user/root下: hadoop fs -copyFromLocal /root/data/item.txt itemdata 若使用mahout将文件输出到另一目录下,可用命令: ./bin/mahout recommenditembased -s SIMILARITY_LOGLIKELIHOOD -i /user/root/itemdata -o /path/to/desired/output --numRecomm…

Hadoop HDFS文件常用操作及注意事项

Hadoop HDFS文件常用操作及注意事项 1.Copy a file from the local file system to HDFS The srcFile variable needs to contain the full name (path + file name) of the file in the local file system. The dstFile variable needs to contain the desired full name of the fi…

Hadoop生态圈-hbase常用命令

Hadoop HDFS的shell(命令行客户端)操作实例

HDFS的shell(命令行客户端)操作实例 3.2 常用命令参数介绍 -help 功能:输出这个命令参数手册 -ls 功能:显示目录信息示例: hadoop fs -ls hdfs://hadoop-server01:9000/ 备注:这些参数中,所有的hdfs路径都可以简写 -->hadoop fs -ls / 等同于上一条命令的效果 -mkdir 功能:在hdfs上创建目录示例:hadoop fs -mkdir -p …

hadoop/hdfs/yarn 详细命令搬运

转载自文章 http://www.cnblogs.com/davidwang456/p/5074108.html 安装完hadoop后,在hadoop的bin目录下有一系列命令: container-executor hadoop hadoop.cmd hdfs hdfs.cmd mapred mapred.cmd rcc test-container-executor yarn yarn.cmd 知道这些命令有助于理解hadoop的概念,命令如下: 1. hadoop 命令帮助 bin/had…

Hadoop HDFS文件常用操作及注意事项（更新）

1.Copy a file from the local file system to HDFS The srcFile variable needs to contain the full name (path + file name) of the file in the local file system. The dstFile variable needs to contain the desired full name of the file in the Hadoop file s…