setup hadoop cluster at home

Install and configure Sqoop for MySQL in the Hadoop cluster environment, Sqoop is a tool used to transfer data from Hadoop to relational databases. It can import data from a relational database (such as MySQL, Oracle, and S) into Hadoop HDFS, you can also import HDFS data to a relational database. One of the highlights

. -Configuration> Property> name>Fs.default.namename> value>hdfs://localhost:9000value> Property> Property> name>Hadoop.tmp.dirname> value>/home/hadoop/hadoop_tmpvalue> Description>A base for other temporary directories.Description> Property>Configuration>Hdfs-site.xml:XML version= "1.0"?>xml-stylesheet type= "text/xsl" href= "configura

completes the modification of the Hadoop-eclipse-plugin-0.20.203.0.jar. Finally, copy the Hadoop-eclipse-plugin-0.20.203.0.jar to the plugins directory of Eclipse: $ CD ~/hadoop-0.20.203.0/lib $ sudo cp hadoop-eclipse-plugin-0.20.203.0.jar/usr/eclipse/plugins/ 5. Configure the plug-in in Eclipse. First, open Eclipse

nodes, and edit the ". BASHRC" file, adding the following lines:$ vim. BASHRC//Edit the file, add the following lines to export Hadoop_home=/home/hduser/hadoopexport java_home=/usr/lib/jvm/java-8-oraclepath=$ PATH: $HADOOP _home/bin: $HADOOP _home/sbin$ source. BASHRC//source make it effective immediatelyChange the java_home of

password login as Datanode node, and because the current node is both Namenode and datanode because of the deployment of a single node, SSH login with no password is required at this time. Here's how:Su HadoopCd2. Create the. SSH directory, generate the keymkdir. SSHSSH-KEYGEN-T RSA3. Switch to the. SSH directory to view the public and private keysCD. SSHLs4. Copy the public key into the log file. To see if replication succeededCP Id_rsa.pub Authorized_keysLs5. View the contents of the diary fi

Introduction to Hadoop Hadoop is an open source distributed computing platform owned by the Apache Software Foundation. With Hadoop Distributed File System (Hdfs,hadoop distributed filesystem) and MapReduce (Google MapReduce's Open source implementation) provides the user with a distributed infrastructure that is trans

-t rsa Copy the public key to each machine, including the local machine, so that ssh localhost password-free login: [hadoop@master ~]$ ssh-copy-id -i ~/.ssh/id_rsa.pub hadoop@master[hadoop@master ~]$ ssh-copy-id -i ~/.ssh/id_rsa.pub hadoop@slave1[hadoop@master ~]$ ssh-co

complete the configurationSecond, establish the Hadoop running accountThat is, for the Hadoop cluster to set up a user group and users, this part is relatively simple, the reference example is as follows:sudo groupadd Hadoop//Set up Hadoop user groupssudo useradd–s/bin/bash

Hadoop version: hadoop-2.5.1-x64.tar.gz The study referenced the Hadoop build process for the two nodes of the http://www.powerxing.com/install-hadoop-cluster/, I used VirtualBox to open four Ubuntu (version 15.10) virtual machines, build four nodes of the

. Cluster. Local. DIR/home/hadoop/hadoop_dir/mapred/local,/data/hadoop_dir/mapred/local Mapred. jobtracker. system. DIR/home/hadoop/hadoop_dir/mapred/System Replacement Process 1. Back up the fsimage file! Add new folder Mkdir ~ /Hadoop_d Mkdir DFS; mkdir log; mkdir mapr

-env.sh Add the following environment variables at the beginning. I tried not to add an error indicating that JAVA_HOME could not be found. Export JAVA_HOME =/home/java/jdk1.7 # Thejava implementation to use. ExportJAVA_HOME =$ {JAVA_HOME} In fact, the environment variables can be read. I added them. Standalone,Repeatedly executed on all machines You can use hadoop dfsadmin-report to check whether

-connector-java-5.0.8/mysql-connector-java-5.0.8-bin.jar./libTo start hive:$ cd/home/zxm/hadoop/hive-0.8.1;./bin/hiveTest:$./hiveWARNING:org.apache.hadoop.metrics.jvm.EventCounter is deprecated. Please use org.apache.hadoop.log.metrics.EventCounter the log4j.properties files.Logging initialized using configuration in jar:file:/home/zxm/

Masters and slaves separately below Vim/home/sunnie/documents/hadoop-1.2.1/conf/masters Remove the localhost from the file and replace it with Master Vim/home/sunnie/documents/hadoop-1.2.1/conf/slaves Remove the localhost from the file and replace it with Slave1 Slave2 In this way, the

This series of articles describes how to install and configure hadoop in full distribution mode and some basic operations in full distribution mode. Prepare to use a single-host call before joining the node. This article only describes how to install and configure a single node. 1. Install Namenode and JobTracker This is the first and most critical cluster in full distribution mode. Use VMWARE virtual Ubu

Fully Distributed Hadoop cluster installation in Ubantu 14.04 The purpose of this article is to teach you how to configure Hadoop's fully distributed cluster. In addition to completely distributed, there are two types: Single-node and pseudo-distributed deployment. Pseudo-distribution only requires one virtual machine, and there are relatively few configurations.