linux commands for hadoop administration

://www.blogjava.net/hongjunli/archive/2007/08/15/137054.html troubleshoot viewing. class filesA typical Hadoop workflow generates data files (such as log files) elsewhere, and then copies them into HDFs, which is then processed by mapreduce, usually without directly reading an HDFs file, which is read by the MapReduce framework. and resolves it to a separate record (key/value pair), unless you specify the import and export of data, it is almost imposs

-auth/pom.xml file 4. compilingMAVEN's specific compilation commands we can find in BUILDING.txt, as follows:Building Distributions:Create binary distribution without native code and without documentation:$ MVN Package-pdist-dskiptests-dtarCreate binary distribution with native code and with documentation:$ MVN Package-pdist,native,docs-dskiptests-dtarCreate Source Distribution:$ MVN package-psrc-dskiptestsCreate source and binary distributions with n

;NBSP;JDK's full name of the TAR package to extract 2. Configure environment variables to modify the configuration file using the Vi/etc/profile vi/etc/profile command, Add the following: Export Java_home=/java/jdk1.8.0_73export jre_home= $JAVA _home/jreexport class_home= $JAVA _home/libexport PATH= $PATH: $JAVA _home/bin use Source/etc/profile to update the profile using Java–version to see if the success is successful, such as: hadoop User Trust 1.

Let's talk about compiling Hadoop source code today ~1. Download the source code firstAddress:http://mirror.bit.edu.cn/apache/hadoop/common/hadoop-2.4.0/2, pressurized tar package to the specified directory :/home/hadoop/soft/hadoopTar zxvf hadoop-2.4.0-src.tar.gz3,

Installing Hadoop on your MacJava under the 1,macLl/usr/bin |grep ' Java 'Default:/system/library/frameworks/javavm.framework/versions/current/commands/javaSpecific installation path:/library/java/javavirtualmachines/below,Java_home is/library/java/javavirtualmachines/jdk1.7.0_75/contents/home.SSH under the 2,macFirst Test ssh localhost,If it does not succeed, see whether to start allow RemoteLogin, and the

character to the right →) User and User Group Management /Etc/passwd storage User Account /Etc/group storage group account /Etc/shadow stores the password of the user account /Etc/gshadow: password used to store user group accounts Useradd Username Userdel Username Adduser User Name Groupadd group name Groupdel group name Passwd root SET Password for root Su root Su-root /Etc/profile system environment variable Bash_profile user environment variables . Bashrc user environment variable Su user

Original: http://www.cnblogs.com/laov/p/3541414.htmlIntroduction to Linux and Ubuntu InstallationCommon directivesSystem administration CommandsPackaging compression-related commandsShut down/Restart the machineLinux PipelinesLinux Package ManagementVim useUser and User group managementFile Rights ManagementDaniel Notes-www.weixuehao.comFrom: HTTP://WWW.WEIXUEHAO.COM/ARCHIVES/25Introduction to

Read Catalogue Order Check List Common Linux Commands Build the Environment Series Index This article is copyright Mephisto and Blog Park is shared, welcome reprint, but must retain this paragraph statement, and give the original link, thank you for your cooperation.The article is written by elder brother (Mephisto), SourcelinkOrder In the previous step, we have prepar

Learning Linux has a lot of obstacles, versions, permissions, commands.Different versions, the command is different, the command needs to install the package, to the novice to bring a lot of inconvenience. Here's a summary of some of the experiences you've had with Ubuntu. The following commands can be used directly.Do you see other people using commands in deskt

Continue to install Hadoop-related environments immediately preceding the previous article JDK Installation:1. Download, the following two addresses found on the Internet, can be directly downloaded:Http://download.oracle.com/otn-pub/java/jdk/7/jdk-7-linux-x64.tar.gzhttp://download.oracle.com/otn-pub/java/jdk/7/jdk-7-linux-x64.rpm2. Install, upload the downloaded

First, the Linux basic Environment1. Linux common version and VMware virtual machine install Linux system2. Virtual Machine Network configuration (IP address, host name, firewall)3. File Basic command operation4. Four Remote connection tools useIi. Linux Basic commands1. User and group creation, deletion, change, and a

Bash_profileUser and user groups for changing filessudo chown [-r] Owner[:group] {file| Directory}For example: Also take jdk-7u21-linux-i586.tar.gz as an example. belongs to user Hadoop, group HadoopYou want to switch the users and groups to which this file belongs. You can use commands.sudo chown root:root jdk-7u21-linux-i586.tar.gzFile Rights ManagementThree b

Bash_profileUser and user groups for changing filessudo chown [-r] Owner[:group] {file| Directory}For example: Also take jdk-7u21-linux-i586.tar.gz as an example. belongs to user Hadoop, group HadoopYou want to switch the users and groups to which this file belongs. You can use commands.sudo chown root:root jdk-7u21-linux-i586.tar.gzFile Rights ManagementThree b

httpd on We open the browser and enter 192.168.1.30 This indicates that the HTTPD service is functioning properly.Seven: Installation Createrepo Yum Install Createrepo Eight: Install Yum-utils Yum Install Yum-utils IX: Copy resource files Copy the file to the/VAR/WWW/HTML/HDP directory via XFTP4, if there is no directory, create it. CD/var/www/-al# Create HDP directory mkdir HDP Start copy, the use of the latest HDP and Ambari, people are not excited. Here is the

decompress, just replace the above command TAR-CVF/TAR-ZCVF/TAR-JCVF "C" in the "X".Shut down/Restart the machineShutdown-R shutdown Restart-H shutdown does not restartNow turn the machine off.Halt shut down the machineReboot restartLinux PipelinesUse the standard output of one command as the standard input for another command. That is, the combination of several commands to use, the latter command in addition to the results of a previous command.Exa

We use the Accton command to turn process statistics on or off, and if not with any parameters, it means to turn off process statistics. Its main parameters are as follows:(1)-V or--version, indicating that the version information is displayed and exited.(2)-H or--HELP, print help information.In the Linux system to start process statistics must use the Accton command, and must use the root identity to run, the Accton command in the form of Accton file

| Directory}For example: Also take jdk-7u21-linux-i586.tar.gz as an example. belongs to user Hadoop, group HadoopYou want to switch the users and groups to which this file belongs. You can use commands.sudo chown root:root jdk-7u21-linux-i586.tar.gzFile Rights ManagementThree basic permissionsR read value represented as 4The W write value is represented as 2X exe

the user, loads the configuration file. Bashrcsu-user switch User, load profile/etc/profile, load bash_profile change file Users and user groups sudo chown [-r] Owner[:group] {file| Directory} For example: Also take jdk-7u21-linux-i586.tar.gz as an example. belongs to user Hadoop, group Hadoop to switch the users and groups to which this file belongs. You can us

About Linux Talk:http://man.linuxde.net/talkThe following article transfers from: Http://www.oschina.net/translate/11-lesser-known-useful-linux-commands(For time reference only, if forbid reprint, contact is deleted)The Linux command line attracts most Linux enthusiasts. A n

Author blog has been transferred, HTTP://WWW.DANIUBIJI.CN/ARCHIVES/25Introduction to Linux and Ubuntu InstallationCommon directivesSystem administration CommandsPackaging compression-related commandsShut down/Restart the machineLinux PipelinesLinux Package ManagementVim useUser and User group managementFile Rights ManagementDaniel Notes-www.weixuehao.comFrom: HTTP://WWW.WEIXUEHAO.COM/ARCHIVES/25Introduction