Learn about setup hadoop cluster at home, we have the largest and most updated setup hadoop cluster at home information on alibabacloud.com
"1.7.0_79"Java (TM) SE Runtime Environment (build 1.7.0_79-b15)Java HotSpot (TM) Client VM (build 24.79-b02, Mixed mode)Indicates that the JDK environment variable is configured successfullyThird, install Hadoop3.1 Download Hadoop, choose Stable version, in fact stable version is 1.2.1, download the site as follows:Http://mirror.esocc.com/apache/hadoop/common/hadoop
I recently tried to build the environment for Hadoop, but I really don't know how to build it. The next hop was a step-by-step error. Answers from many people on the Internet are also common pitfalls (for example, the most typical is the case sensitivity of commands, for example, hadoop commands are in lower case, and many people write Hadoop, so when you encount
Tip: If you're not aware of Hadoop, you can view this article on the Hadoop ecosystem, which allows us to get an overview of the usage scenarios for tools in Hadoop and Hadoop ecosystems. To build a distributed Hadoop cluster envi
Uploading and downloading files on HDFs is the basic operation of the cluster, in the guide to Hadoop, there are examples of code for uploading and downloading files, but there is no clear way to configure the Hadoop client, after lengthy searches and debugging, How to configure a method for using clustering, and to test the available programs that you can use to
I. Create Hadoop user portfolio under Ubuntu Hadoop user1. Create a Hadoop user group addgroup HADOOP2, create a Hadoop user adduser-ingroup Hadoop hadoop3, Add permissions for Hadoop users vim/etc/sudoers 4, switch to
[TOC] Redis Note-taking (ii): Java API use with Redis distributed cluster environment using Redis Java API (i): Standalone version of Redis API usageThe Redis Java API operates through Jedis, so the first Jedis third-party libraries are needed, because the MAVEN project is used, so the Jedis dependency is given first:Basic code exampleThe commands that Redis can provide, Jedis are also provided, and are very similar in use, so here's just some c
, there are problems can read more log (http://192.168.0.6:8088/logs/)method Two: concrete See http://www.2cto.com/kf/201212/173857.htmlThis method specifies the input/output path in the program, so you do not need to specify an input/output path when running on Eclipse, as follows.packaged into Jarselected src Package Right-- Export -- Java -- JAR File -- Next --Select left only src the folder is ready, Lib under the Jar is a Hadoop bring it to your
Hadoop learning notes (1) Environment setup My environment is: Install hadoop1.0.0 in ubuntu11.10 (standalone pseudo-distributed) Install SSH Apt-Get Install SSHInstall rsyncApt-Get install rsyncConfigure SSH password-free LoginSsh-keygen-t dsa-p'-f ~ /. Ssh/id_dsaCat ~ /. Ssh/id_dsa.pub> ~ /. Ssh/authorized_keysVerify whether it is successfulSSH localhostInstall hadoop1.0.0 and JDKCreate a Linux terminal
First, IntroductionAfter writing the MapReduce task, it was always packaged and uploaded to the Hadoop cluster, then started the task through the shell command, then looked at the log log file on each node, and later to improve the development efficiency, You need to find a direct maprreduce task directly to the Hadoop cluste
Spark Cluster Setup 1 Spark Compilation 1.1 Download Source code git clone git://github.com/apache/spark.git-b branch-1.6 1.2 Modifying the pom file Add cdh5.0.2 related profiles as follows: 1.3 Compiling Build/mvn-pyarn-pcdh5.0.2-phive-phive-thriftserver-pnative-dskiptests Package The above command, due to foreign maven.twttr.com by the wall, added hosts,199.16.156.89 maven.twttr.com, executed a
region:#hbase> major_compact ‘r1‘, ‘c1‘#Compact a single column family within a table:#hbase> major_compact ‘t1‘, ‘c1‘ Configuration Management and node restart1) Modify the HDFs configurationHDFs Configuration Location:/etc/hadoop/conf # 同步hdfs配置cat /home/hadoop/slaves|xargs -i -t scp /etc/
Nutch:hadoop:http://www.apache.org/dyn/closer.cgi/hadoop/common/nutch:http://www.apache.org/dyn/closer.cgi/nutch/3.2. Build configuration3.2.1SSH Login Configuration(1) Generate the certificate file on the master machine using the following command Authorized_keys$ ssh-keygen-t Rsa-p "-F ~/.ssh/id_rsa$ cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys(2) Copy the certificate file to the user home directory o
The cluster space has been a little tight recently and is always worried about space shortage and crashes. The recent resizing is not realistic. After communicating with cluster users, we found that the cluster stores a lot of useless historical data and can be deleted, in this way, you can use a crontab script to generate a
: + UseConcMarkSweepGC" Export HBASE_OPTS = "$ HBASE_OPTS-Djava. security. auth. login. config =/etc/hbase/conf/zk-jaas.conf" Export HBASE_MANAGES_ZK = false Zookeeper configuration file (only the last two rows are appended to hbase configuration):/usr/lib/zookeeper/conf/zoo. cfg MaxClientCnxns = 50 TickTime = 2000 InitLimit = 5 SyncLimit = 2 DataDir =/var/lib/zookeeper ClientPort = 2181 Server.1 = cdh01.hypers.com: 2888: 3888 Server.2 = cdh02.hypers.com: 2888: 3888 Server.3 = cdh03.hypers.com:
/ Ubuntu/trusty-backports Main restricted Universe multiverseUpdate $>apt-get UpdateCreate a new Soft folder in the home root directory mkdir softHowever, after the establishment is complete, the file belongs to the root user, modify the permissions chown enmoedu:enmoedu soft/Install shared FoldersPut the file on the desktop, right click on "Extract here"Switch to enmoedu user's home directory, Cd/desktop/v
hbase-1.2.4jdk1.8.0_101The first step, download the latest version from the Apache FoundationHTTPS://mirrors.tuna.tsinghua.edu.cn/apache/hbase/1.2.4/hbase-1.2.4-bin.tar.gzStep two , unzip to the serverTAR-ZXVF hbase-1.2. 4The third step is to configure the HBase cluster to modify 3 files (first the ZK cluster is already installed) Note: Since HBase final data is stored in HDFs, Hadoop's hdfs-site.xml and c
After more than a week, I finally set up the latest version of Hadoop2.2 cluster. During this period, I encountered various problems and was really tortured as a cainiao. However, when wordcount gave the results, I was so excited ~~ (If you have any errors or questions, please correct them and learn from each other) In addition, you are welcome to leave a message when you encounter problems during the configuration process and discuss them with each o
Mkdir-p/home/hadoop/zookeeper/dataCd/home/hadoop/zookeeper/datadatadir=/home/hadoop/zookeeper/dataserver.1=10.10.113.41:2888:3888server.2=10.10.113.42:2888:3888server.3= 10.10.113.43:2888:3888#zookeeperexport zookeeper==/
I. Installing Java 1. Download and install the JDK, I downloaded the 1.8.0_45 URL: http://www.oracle.com/technetwork/java/javase/downloads/ Index-jsp-138363.html is as follows: Then install, the default installation path is:/library/java/javavirtualmachines/jdk1.8.0_45.jdk/contents/ Home2. Test whether the installation succeeded in Terminal input: Java-versionIf the installation is successful, the appropriate Java version is displayed. Two. Download and install the
For example, if the ip address of the newly added node is 192.168.1.xxx, add the hosts of 192.168.1.xxxdatanode-xxx to all nn and dn nodes, create useraddhadoop-sbinbash-m on xxx, and add the ip address of another dn. all files in ssh are copied to homehadoop on xxx. install jdkapt-getinstallsun-java6-j in ssh path For example, if the ip address of the newly added node is 192.168.1.xxx, add the hosts of 192.168.1.xxx datanode-xxx to all nn and dn nodes, create useradd
Start building with 50+ products and up to 12 months usage for Elastic Compute Service
1 on 1 presale consultation
24/7 Technical Support 6 Free Tickets per Quarter Faster Response
Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.
A comprehensive suite of global cloud computing services to power your business
Payment Methods We Support
