hadoop admin commands

This article provides a detailed analysis of some commonly used commands in hadoop. For more information, see Hadoop installation directory HADOOP_HOME:/home/admin/hadoop. Start and closeStart Hadoop1. go to the HADOOP_HOME directory. 2. execute sh bin/start-all.sh Disable

/hadoop jar/home/admin/hadoop/job. jar [jobMainClass] [jobArgs] Killing a running JobAssume that Job_Id is job_20100531_37_0053.1. Go to the HADOOP_HOME directory.2. Execute sh bin/hadoop job-kill job_20100531_37_0053 More Hadoop commandsThe

After installing the Hadoop pseudo-distributed environment, executing the relevant commands (for example: Bin/hdfs dfs-ls) will appearWARN util. nativecodeloader:unable to load Native-hadoop library for your platform ... using Builtin-java classes where applicable, which is Because the installed Navtive packages and platforms do not match, the

directory.2. Perform sh bin/hadoop jar/home/admin/hadoop/job.jar [jobmainclass] [Jobargs] Kill a running jobSuppose job_id is: job_201005310937_00531. Enter the Hadoop_home directory.2. Perform sh bin/hadoop job-kill job_201005310937_0053 More Hadoop commandsThe operation

Hadoop Shell commands Use bin/hadoop FS 1. cat Description: outputs the content of the specified file in the path to stdout. Usage: hadoop fs-cat URI [URI…] Example: hadoopfs-cathdfs://host1:port1/file1hdfs://host2:port2/file2 hadoopfs-catfile:///file3/user/hadoop/

region:#hbase> major_compact ‘r1‘, ‘c1‘#Compact a single column family within a table:#hbase> major_compact ‘t1‘, ‘c1‘ Configuration Management and node restart1) Modify the HDFs configurationHDFs Configuration Location:/etc/hadoop/conf # 同步hdfs配置cat /home/hadoop/slaves|xargs -i -t scp /etc/hadoop/conf/hdfs-site.x

Hadoop learning notes (3) Common commands Go to the hadoop_home directory. Execute sh bin/start-all.sh Go to the hadoop_home directory. Execute sh bin/stop-all.sh Usage: Java fsshell[-Ls [-LSR [-Du [-DUS [-Count [-q] [-MV [-CP [-RM [-skiptrash] [-RMR [-skiptrash] [-Expunge][-Put [-Copyfromlocal [-Movefromlocal [-Get [-ignorecrc] [-CRC] [-Getmerge [-Cat [-Text [-Copytolocal [-ignorecrc] [-CRC] [-Mo

1,hadoop Fs–fs [local | 2,hadoop fs–ls 3,hadoop FS–LSR 4,hadoop Fs–du 5,hadoop Fs–dus 6,hadoop fs–mv 7,hadoop FS–CP 8,hadoop fs–rm [-skiptra

A. Common Hadoop commands1. The FS command for Hadoop#查看hadoop所有的fs命令Hadoop FS#上传文件 (both put and copyfromlocal are upload commands)Hadoop fs-put jdk-7u55-linux-i586.tar.gz hdfs://hucc01:9000/jdkhadoop fs-copyfromlocal jdk-7u55-li

To make it easier for you to review your memory, we will summarize the hadoop commands of today's experiment for later viewing.Note: The following commands are performed in hadoop/bin.1. hadoop FS-ls \-> View All the following directories.2.

Summary of common Hadoop and Ceph commandsIt is very practical to summarize the commonly used Hadoop and Ceph commands.HadoopCheck whether the nm is alive. bin/yarn node list deletes the directory and hadoop dfs-rm-r/directory.Hadoop classpath allows you to view the paths of all classes.Hadoop leave safe mode method: hadoop