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1. First install the JDK and configure the Java environment variables (specific methods can be found in google)Unzip the hadoop-0.20.2.tar.gz into your Ubuntu account directory (/home/xxxx/hadoop) (unzip to any directory can be, see the individual needs, but the configuration of the following files must be changed to t
Recent Big Data Compare fire, so also want to learn a bit, so install Ubuntu Server on the virtual machine, then install Hadoop. Here are the installation steps:1. Installing JavaIf it is a new machine, the default is not to install Java, run java–version named to see if you can view the Java version, if Java is not installed, this runs the following name: # Update The source list$ sudo apt-get update # The
Installation environment: Ubuntu Kylin 14.04 haoop-1.2.1 HADOOP:HTTP://APACHE.MESI.COM.AR/HADOOP/COMMON/HADOOP-1.2.1/1. To install the JDK, it is important to note that in order to use Hadoop, you need to enter a command under Hadoop:source/etc/profile to implement it, and t
n is not a positive long integer, the directory does not exist or the file name, or the directory exceeds the quota, an error report will be generated.* Dfsadmin-clrquota Delete a quota for each directory. This command will try on each directory. If the directory does not exist or is a file, an error report will be generated. If no quota is set in the directory, no error is returned.* FS-count-q The-Q option is used to report the quota set for each d
and dfs.datanode.data.dir can be set freely, preferably in Hadoop.tmp.dir the directory below. Supplement, if run Hadoop found no jdk, you can directly put the JDK path in the hadoop-env.sh inside, Specific as follows: Export Java_home= "/usr/local/jdk1.8.0_91"9. Running Hadoop① initializing HDFS systemcommand:bin
Ubuntu version 12.04.3 64-bitHadoop is run on a Java virtual machine, so you'll need to install the Jdk,jdk installation configuration method to install it under another blog post ubuntu12.04 jdk1.7SOURCE Package Preparation:I downloaded the hadoop-1.2.1.tar.gz, this version is relatively stable, can be provided to the official website of the image http://www.apache.org/dyn/closer.cgi/
Property>6 Configuration>5. Format HDFsIf this error occurs:ERROR Namenode. NameNode:java.io.IOException:Cannot Create Directory/home/xxx0624/hadoop/hdfs/name/currentThen: Set the directory permissions for Hadoop to the current user writable sudo chmod-r a+w/home/xxx0624/hadoop, granting write access to the Hadoop
The official Chinese version of the Hadoop QuickStart tutorial is already a very old version of the new Hadoop directory structure has changed, so some configuration file location is also slightly adjusted, such as the new version of Hadoop can not find the Conf directory mentioned in the QuickStart, in addition, There are many tutorials on the web that are also
1. Install Ubuntu 14.04 Desktop LTS Download the ISO file, Ubuntu-14.04.1-desktop-amd64.iso. Create a new virtual machine in VirtualBox or VMware and set the ISO file as the startup disc. Install Ubuntu 14.04 http://www.linuxidc.com/Linux/2014-04/100473.htm under Windows 7 with VMware Workstation 10 virtual machines Next, enter the user name LINU
Configure the Hadoop environment in Ubuntu Configuring the Hadoop environment in Ubuntu to implement truly distributed Hadoop is not pseudo-distributed. I. System and Configuration We have prepared two machines to build a Hadoop c
have prepared these 3 nodes, you need to rename the host name of the Linux system (because the copy and paste operations are preceded by the other two nodes, at which point the host name of the 3 nodes is the same), rename the host name method:Vim/etc/hostnameBy modifying the hostname file, these three points should be modified to differentiate.Here is my Ubuntu system host for three nodes named: Master, Node1, Node2Basic conditions ready, back to do
be created. 3. Configure the running parameters, click Arguments, and enter "the Input Folder you want to pass to the Program and the folder you want the Program to save the computing result" in Program arguments, for example: Hdfs: // localhost: 9000/user/xx/input01hdfs: // localhost: 9000/user/xx/output01 Here input01 is the folder you just uploaded. You can enter the folder address as needed. 4. Click Run to Run the program. Click Run to Run the program. After a period of time, the running i
First, create Hadoop groups and Hadoop users under ubuntuIncrease the Hadoop user group while adding Hadoop users to the group, and we'll use that user when it comes to Hadoop operations . 1. Create a Hadoop user group 2, create
of RPC Jar Run a jar file. You can package their map reduce files and run this command. Usage: hadoop jar This command is required for stream operations. Examples can be found in streaming examples. You can also run the word statistics example using the jar command
pay attention to some details.On mac OS, the JAVA_HOME path is/System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home. If you cannot find the java directory, but the java-version displays the java version normally, you can execute export JAVA_HOME = '/usr/libexec/java_home' first'Then echo $ JAVA_HOME to see the current jdk path.Change the apt-get command on cent OS to yum.Check whether the 64-bit message is displayed on cent OS: getconf LON
randomart image is:+ -- [RSA 2048] ---- +|||| Ooo. || = E ++. S || Oo =. o. ||... = Oo || O = o + || O +. o |+ ----------------- +Hduser @ hm1 :~ $ Cat ~ /. Ssh/id_rsa.pub> ~ /. Ssh/authorized_keysHduser @ hm1 :~ $ Ssh localhostThe authenticity of host 'localhost (127.0.0.1) 'can't be established.ECDSA key fingerprint is fb: a8: 6c: 4c: 51: 57: b2: 6d: 36: b2: 9c: 62: 94: 30: 40: a7.Are you sure you want to continue connecting (yes/no )? YesWarning: Permanently added 'localhost' (ECDSA) to the
(both systems in the team have been successful, but the higher version is relatively smooth)6. SSH: Install via Linux command7. jdk1.8:jdk-8u11-linux-x64.tar.gz8. hadoop2.6.0:hadoop-2.6.0.tar.gzSecond, the building of the cluster (three machines for example, a master (host), two slave (slave), in the virtual machine settings will be network adapter to bridge)1. In order to make the machines interconnected, we need to modify the/etc/hosts file.First w
will all be displayed:650) this.width=650; "Src=" https://s5.51cto.com/wyfs02/M02/8D/81/wKioL1ifBLewUbRbAAMYZLw9g7U228.png-wh_500x0-wm_ 3-wmp_4-s_552914878.png "title=" Snip20170211_66.png "alt=" Wkiol1ifblewubrbaamyzlw9g7u228.png-wh_50 "/>The Hadoop unpacked share directory provides us with a few example jar packages, and we perform a look at the effect:$ hadoop jar/home/hduser/
immediately started to access the two systems without a password. No progress has been made at any three o'clock. During this period, the ubuntu Forum posts once, and Baidu knows to post once. Ubuntu sends a group of five questions. No answer, tragedy-sleep. After, it took an hour to complete the installation. Hadoop was installed at the end of, and the pseudo-n
This article is based on the previous article, Ubuntu installs the Hadoop standalone version on the basis of1, Configuration Core-site.xmlThe/usr/local/hadoop/etc/hadoop/core-site.xml contains configuration information when Hadoop starts.Open this file in the editorsudo gedi
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