hadoop installation

Hadoop 2.7.1 high-availability installation configuration based on QMJ Hadoop 2.7.1 high-availability installation configuration based on QMJ 1. Modify the Host Name and hosts file 10.205.22.185 nn1 (main) function namenode, resourcemanager, datanode, zk, hive, sqoop10.205.22.186 nn2 (standby) function namenode, resour

. illegalargumentexception: The servicename: mapreduce. shuffle set in yarn. nodemanager. aux-services is invalid /*************************************** ********************* Shutdown_msg: Shutting Down nodemanager at slave1.hadoop/192.168.1.3 **************************************** ********************/ Ii. Problem Solving Found that yarn-site.xml configuration does not meet the requirements. Modify as follows: Incorrect Configuration:

Only recently began to touch Hadoop, the first thing to do is to install Hadoop, before you install Hadoop, you need to make the following preparationsA Linux environment, I installed CentOS using VMware's virtual machine environmentthis please yourself Baidu a bit, it is really too bigLinux installation package for JD

Standalone installation is mainly used for Program Logic debugging. The installation steps are basically distributed, including environment variables, main Hadoop configuration files, and SSH configuration. The main difference lies in the configuration file: slaves configuration needs to be modified. In addition, if dfs. replication is greater than 1 in Distribut

Premise:Make sure the iptables is off and SELinux is disabled1. Prepare the hardware1 sets of Namenode and 3 DatanodeNamenode 192.168.137.100Datanode1 192.168.137.101Datanode2 192.168.137.102Datanode3 192.168.137.1032. Build Hadoop users on 4 machines (can also be other user names)Useradd Hadoop3. Install JDK 1.6 on 4 machinesPost-installation java_home on/JDKConfiguring Environment variablesVim/etc/bashrcE

128 and press Enter.Copy the public key/root/. ssh/id_rsa.pub to the datanode server as follows:Root@192.168.149.129 for ssh-copy-id-I. ssh/id_rsa.pubRoot@192.168.149.130 for ssh-copy-id-I. ssh/id_rsa.pub Iii. Java installation and configurationTar-xvzf jdk-7u25-linux-x64.tar.gz mkdir-p/usr/java/; mv/jdk1.7.0 _ 25/usr/java.After installation and configuration of java environment variables, add the follow

Tags: get java NPE View tables system XML validation 1.21. Preparing the Linux environment1.1 Shutting down the firewall#查看防火墙状态Service Iptables Status#关闭防火墙Service Iptables Stop#查看防火墙开机启动状态Chkconfig iptables--list#关闭防火墙开机启动Chkconfig iptables off1.2 Modifying sudoSu RootVim/etc/sudoersAdd execute permissions to Hadoop usersHadoop all= (All) allTo close the Linux server's graphical interface:Vi/etc/inittab1.3 Restarting LinuxReboot2. Installing the Jav

Hadoop pseudo-distribution is generally used for learning and testing. production environments are generally not used. (If you have any mistakes, please criticize and correct them) 1. installation environment Install linux on windows. CenOS is used as an example. hadoop version is hadoop1.1.2. 2. configure a linux Virtual Machine 2.1 make sure that the NIC WMnet1

authenticationPermissions are similar to Linux, and if a Linux user Wangwei to create a file using the Hadoop command, the file in HDFs is the owner of Wangwei; HDFs does not do password authentication, such a benefit is fast, or each read and write to verify the password,HDFS storage data is generally not very high security data. HDFs theory ended.iii. HDFs Installation and Deployment1. Download

: hadoopinstal/doc/core-default.html 2.2.2 set the hdfs-site.xml as follows: Detailed configuration item reference: hadoopinstal/doc/hdfs-default.html 2.2.3 set mapred-site.xml, as follows: Detailed configuration item reference: hadoopinstal/doc/mapred-default.html Iv. Format hadoop run hadoop Run the following command on the console: hadoop nam

Hadoop remote Client installation configuration Client system: ubuntu12.04 Client User name: Mjiang Server username: Hadoop download Hadoop installation package, guaranteed and server version consistent (or the Hadoop

Hadoop-2.6 cluster Installation Basic Environment Sshd Configuration Directory:/root/. ssh The configuration involves four shells. 1.Operation per machine Ssh-keygen-t rsa Generate an ssh key. The generated file is as follows: Id_rsa Id_rsa.pub . Pub is the public key, and No. pub is the private key. 2.Operation per machine Cp id_rsa.pub authorized_keys Authorized_keys Error 3.Copy and distrib

Hadoop remote Client installation configuration Client system: ubuntu12.04 Client User name: Mjiang Server user name: Hadoop downloads Hadoop installation package to ensure consistent server version (or Hadoop

Tags: map table mapred Linux Environment ISA TPS Word execution windowsSystem for CentOS 6.9,hadoop version 2.8.3, virtual machine vmware WorkstationThis article focuses on Linux virtual machine installation, environment configuration, and Hadoop local mode installation. Pseudo-distributed and

1. Install Scala A download Address: http://www.scala-lang.org/download/I choose to install the latest version of Scala-2.12.0.tgz. b upload the compression to the/usr/local directory C Decompression TAR-ZXVF scala-2.12.0.tgz D Change Soft connectionLn-s scala-2.12.0 Scala E Modifying configuration file InstallationVim/etc/profile#add by LekkoExport Scala_home=/usr/local/scalaExport Path= Path:path:scala_home/bin F After the configuration is complete, let it take effectSource/etc/profile G to se

Because I recently recently have been learning Hadoop, exposure to a lot of theory, but want to go deep into the whole Hadoop platform, it must combat training, first step, of course, first build good one Hadoop platform first. But the pit daddy is, Hadoop is required to install in the Linux environment, under Windows