hortonworks hadoop installation

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[Hadoop] Introduction and installation of MapReduce (iii)

Mapred.job.shuffle.input.buffer.percent property, which represents the percentage of heap space used for this purpose), if the amount of data exceeds a certain percentage of the buffer size (by Mapred.job.shuffle.merg E.percent), the data is merged and then overflowed to disk. 2. As overflow files increase, background threads merge them into a larger, ordered file to save time for subsequent merges. In fact, regardless of the map or the reduce side, MapReduce is repeated to perform the sort, m

Hadoop learning; JDK installation, Workstation Virtual Machine V2V migration; Ping network communication between virtual machines and cross-physical machine; Disable firewall and check Service Startup in centos of virtualbox

we use is to connect the Virtual Machine bridge to the physical network, occupying the IP address of the physical LAN, to achieve communication between the virtual machine and the physical machine and cross-Physical Machine Communication. Build a virtual machine again, this time using virtualbox View Firewall Disable Firewall Chkconfig -- list to view all the system services,If on exists, the startup is triggered under certain circumstances.. All disabled here

Hadoop serialization Series II: distributed installation of Zookeeper

. Environment deployment The deployment of the Zookeeper cluster is based on the Hadoop cluster deployed in the previous article. The cluster configuration is as follows: Zookeeper1 rango 192.168.56.1 Zookeeper2 vm2 192.168.56.102 Zookeeper3 vm3 192.168.56.103 Zookeeper4 vm4 192.168.56.104 Zookeeper5 vm1 192.168.56.101 3. installation and configuration 3.1 download and install Zookeeper Download the lat

hadoop--installation 1.2. Version 1

The first step is to select the tar.gz of the Hadoop version you want to install and extract the compressed files to the specified directory.The second step, create a folder to hold the data, the name of this folder can be self-command, but to include three sub-folders (these three subfolders, can be separated, but generally we put them in the same folder)Of these three folders, where data (the Datanode node is used, the contents of the storage is sav

HBase cluster Installation (3)-An Jun Hadoop

Ann to HadoopMy installation path is software under the root directoryUnzip the Hadoop package into the software directoryView directory after decompressionThere are four configuration files to modifyModify Hadoop-env.shModify the Core-site.xml fileConfigure Hdfs-site.xmlConfigure Mapred-site.xmlCompounding Yarn-site.xmlCompounding slavesFormat HDFs File systemSu

Hadoop 1, HDFS installation on virtual machines

First, the preparation conditions:1. Four Linux virtual machines (1 namenode nodes, 1 secondary nodes (secondary and 1 datanode shared), plus 2 datanode)2. Download the Hadoop version, this example uses the Hadoop-2.5.2 versionSecond, install Java JDKBest installed, JDK 1.7 is best for JDK 1.7 compatibility-IVH jdk-7u79-linux-/root/. Bash_profilejava_home=/usr/java/jdk1. 7 . 0_79path= $PATH: $JAVA _home/bin

Hadoop (eight)-Sqoop installation and use

statement)Sqoop Import--connect jdbc:mysql://192.168.1.10:3306/itcast--username root--password 123 \--query ' SELECT * from Trade_detail where ID > 2 and $CONDITIONS '--split-by trade_detail.id--target-dir '/sqoop/td3 'Note: If you use the--query command, it is important to note that the argument after the where, and $CONDITIONS This parameter must be addedAnd there is the difference between single and double quotes, if--query is followed by double quotes, then you need to add \ \ \ $CONDITIONS

Installation JDK for Hadoop Big Data

completes, the JDK folder will be generated in the/opt/tools directory./jdk-6u34-linux-i586.binTo configure the JDK environment command:[Email protected]:/opt/tools# sudo gedit/etc/profileTo enter the profile file, change the file:Export java_home=/opt/tools/jdk1.6.0_34Export Jre_home= $JAVA _home/jreExport classpath= $JAVA _home/lib: $JRE _home/lib: $CLASSPATHExport path= $JAVA _home/bin: $JRE _home/bin: $PATHSave file, closeExecute the following command to make the configuration file effectiv

Installing a highly available Hadoop ecosystem (ii) installation zookeeper

/zookeeper.service hadoop2:/etc/systemd/system/SCP /etc/systemd/system/ Zookeeper.service hadoop3:/etc/systemd/system/Reload configuration information: Systemctl daemon-reloadStart Zookeeper:systemctl Start ZookeeperStop Zookeeper:systemctl Stop ZookeeperView process status and logs (important): Systemctl status ZookeeperBoot from: Systemctl Enable zookeeperOff self-booting: Systemctl Disable zookeeperStart Service set to start automaticallySystemctl daemon-reloadsystemctl start zookeepersystemc

Hadoop (10)-Hive installation vs. custom functions

(pubdate= ' 2010-08-22 ');Load data local inpath '/root/data.am ' into table beauty partition (nation= "USA");Select Nation, AVG (size) from the Beauties group by Nation ORDER by AVG (size);Two. UDFCustom UDF to inherit the Org.apache.hadoop.hive.ql.exec.UDF class implementation evaluatepublic class Areaudf extends Udf{private static MapCustom Function Call Procedure:1. Add a jar package (executed in the Hive command line)hive> add Jar/root/nudf.jar;2. Create a temporary functionHive> Create te

Hadoop plug-in installation

1. First download the Hadoop version of the plug-in to the Hadoop 1.0 version of the corresponding plug-in Hadoop-eclipse-plugin1.0.3.jar as an example2. Place the downloaded plugin in the plugins directory of the Ecplise installation directory3, Start ecplise, click Window->show view->other, click Mapreudce tools->map

Hadoop-08-hive Local stand-alone installation

, Add at the end: Export Java_home= ....e xport hadoop_home= ...7. Enter the conf directory under the Hive installation directory , according to hive-default.xml.template Copy out two files : C P hive-default.xml.template hive-default.xmlC P hive-default.xml.template hive-site.xml8. Configure hive-site.xml: Hive.metastore.warehouse.dir Hive.exec.scratchdir Javax.jdo.option.ConnectionURL Javax.jdo.option.ConnectionDriverName Javax.jdo.option.C

Hadoop-2.7.1 Pseudo-Distribution--installation configuration HBase 1.1.2

Hbase-1.1.2:http://www.eu.apache.org/dist/hbase/stable/hbase-1.1.2-bin.tar.gzUnzip to the \usr\local directory after downloadOpen the terminal into \usr\local\hbase-1.1.2:CD \usr\local\hbase-1.1. 2 modifying variablesVim conf/hbase-env.shAdd the following settings# Export JAVA_HOME=/USR/JAVA/JDK1. 6.0/export java_home=/usr/local/jdk1. 8 . 0_65# Extra Java CLASSPATH elements. optional.# export Hbase_classpath=export Hbase_classpath=/usr/local/hadoop

Cygwin installation of the Hadoop environment

Hadoop requires a Linux environment, and Cygwin allows you to have a Linux development environment under win without having to open a virtual machine to install Linux. Cygwin for http://cygwin.com/install.html, select download according to the number of digits of your operating system The installation process is next, until the location:     Locate OpenSSH and OpenSSL under point open Net,

Hadoop pseudo-distributed installation under MacBook

1 Preparing raw materials1.1 JDK 1.8.0_1711.2 Hadoop 2.8.32 Password-Free login configuration (otherwise the installation process will require constant input of passwords)2.1 Open MacBook allows remote loginSystem Preferences--share--check Telnet (indicates OK when Telnet status is green)Hadoop pseudo-distributed installation

Linux Install Hadoop installation JDK

Install the JDK on CentOS.1, to the official website to download the installation package. I'm a jdk-7u79-linux-x64.rpm here.2. Build Usr/java directory in CentOS. You only need to mkdir Java under USR.3, upload rpm package. RZ jdk-7u79-linux-x64.rpm. If you cannot perform the RZ command, yum install lrzsz-y.4, installation #rpm-IVH jdk-7u79-linux-x64.rpm.5, configure environment variables.Enter/etc/profile

"Hadoop Distributed Deployment Eight: Distributed collaboration framework zookeeper architecture features explained and local mode installation deployment and command use"

the Zookeeper directory            Copy this path, and then go to config file to modify this, and the rest do not need to be modified            After the configuration is complete, start zookeeper, and in the Zookeeper directory, execute the command: bin/zkserver.sh start            View zookeeper status can be seen as a stand-alone node      command to enter the client: bin/zkcli.sh      To create a command for a node:Create/test "Test-data"      View node Command LS/      Gets the node comma

Hadoop Video tutorial Big Data high Performance cluster NoSQL combat authoritative introductory installation

Video materials are checked one by one, clear high quality, and contains a variety of documents, software installation packages and source code! Perpetual FREE Updates!Technical teams are permanently free to answer technical questions: Hadoop, Redis, Memcached, MongoDB, Spark, Storm, cloud computing, R language, machine learning, Nginx, Linux, MySQL, Java EE,. NET, PHP, Save your time!Get video materials an

Hadoop installation Error

When installing Hadoop ha, format ZK, execute HDFS ZKFC–FORMATZK command error as follows:16/09/08 20:41:53 INFO Zookeeper. Zookeeper:initiating Client connection, connectstring=>hddata1:2181,hddata2:2181,hddata3:2181 sessionTimeout= Watcher[email Protected]5dd308e316/09/08 20:41:53 FATAL Tools. Dfszkfailovercontroller:got a fatal error, exiting nowJava.net.UnknownHostException: >hddata1At Java.net.Inet4AddressImpl.lookupAllHostAddr (Native Method)At

The Ubuntu system SSH password-free login setting during Hadoop installation

Just beginning to contact, not very familiar with, make a small record, later revisionGenerate public and private keysSsh-keygen-t Dsa-p "-F ~/.SSH/ID_DSAImport the public key into the Authorized_keys fileCat ~/.ssh/id_dsa.pub >> ~/.ssh/authorized_keysUnder normal circumstances, SSH login will not need to use the passwordIf prompted: Permission denied, please try againModify SSH configuration, path/etc/ssh/sshd_configPermitrootlogin Without-passwordChange intoPermitrootlogin YesIf the above conf

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