hadoop ubuntu

UFW Default Deny Copy CodeLinux restart:root user restart can use the following command, but ordinary users do not. Init 6 Copy CodeOrdinary users use the following command sudo reboot Copy CodeFive Tests whether the host and the virtual machine are ping through1. Set up the IP, it is recommended that you use the Linux interface, which is more convenient to set up. However, it is best to set the interfaces under/etc/network/through the terminal. Becaus

The second day of contact with hadoop, it took two days to configure hadoop to the environment. I wrote my own configuration process here, hoping to help you! I have shared all the resources used in this article here. Click here to download them. You don't need to find them one by one! This includes the "Hadoop technology insider" book. The first chapter describ

First, install the jdk:http://www.cnblogs.com/e-star/p/4437788.htmlSecond, configure SSH password-free login1. Install the required softwaresudo apt-get install install SSH2. Configure SSH password-free loginSsh-keygen-t Dsa-p "-F ~/.SSH/ID_DSACat ~/.ssh/id_dsa.pub >>~/.ssh/authorized_keys3. Verify SuccessSSH localhostThird, install Hadoop1. Download Hadoop to the server2. DecompressionTAR-XVF Hadoop-1.0.4.

1. Install JDKa) download the JDK Installation File jdk-6u30-linux-i586.bin under Linux from here. B) copy the JDK installation file to a local directory and select the/opt directory. C) 1. Install JDK A) download the JDK Installation File jdk-6u30-linux-i586.bin under Linux from here. B) copy the JDK installation file to a local directory and select the/opt directory. C) Execution Sudo sh jdk-6u30-linux-i586.bin (if you cannot execute chmod + x jdk-6u30-linux-i586.bin first) D) after installat

Issue 1: Installation of Openssh-server failedReason:The following packages have unsatisfied dependencies: Openssh-server: dependent: openssh-client (= 1:5.9p1-5ubuntu1) But 1:6.1p1-4 is about to be installed recommended: Ssh-import-id But it will not be Install E: cannot fix the error because you require certain packages to remain current, that is, they destroy the dependencies between software packagesSolve:First install a dependent version of Openssh-client (Legacy):sudo apt-

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

Environment: The system is ubuntu15.04 Hadoop2.7.3Virtual Machine Master-hadoop ip:192.168.116.129Virtual Machine Slave1-hadoop ip:192.168.116.130Virtual Machine Slave2-hadoop ip:192.168.116.131The installation configuration of the Hadoop cluster is roughly the following process: Create a new virtual machine as M

The next day of contact with Hadoop, the configuration of Hadoop to the environment also took two days, the process of their own configuration is written here, I hope to help you!I will use the text to share all the resources here, click to download, do not need to find a!Among them is "the Hadoop Technology Insider" This book, the first chapter describes this co

Because the Hadoop cluster needs to configure a section of the graphical management data and later find Hue, in the process of configuring hue, you find that you need to configure HTTPFS because Httpfs,hue is configured to operate the data in HDFs.What does HTTPFS do? It allows you to manage files on HDFs in a browser, for example in hue; it also provides a restful API to manage HDFs1 cluster environmentUbuntu-14.10Openjdk-7hadoop-2.6.0 HA (dual nn)hu

1 FATAL org.apache.hadoop.ha.ZKFailoverController:Unable to start failover controller. Parent Znode does not exist.This error causes the Dfszkfailovercontroller to not be able to be started, so that the active Node cannot be elected, resulting in Hadoop two namenode are standby, I doStop all Hadoop processes and reformat the zookeeperHDFs Zkfc-formatzk2 immediately after the last question, and then reformat

1: Install JRE 2. Install eclipse 3: Download hadoop1.0.1 4. Download The hadoop Eclipse plug-in 5: Standalone pseudo distributed settings: http://www.open-open.com/lib/view/open1326164339265.html 6: Start the hadoop service: Hadoop_home/bin/start-all.sh Web Access: http: // localhost: 50030 Http: // localhost: 50070 Complete example: http://www.linuxidc.com/Linux/2011-03/33497p2.htm []

installed JAVA-ODBCApt-get Install Libmysql-javaAnd he'll ask you to execute/var/lib/ambari-server/resources/ambari-ddl-mysql-create.sql.Log into the database source can, but there will be a key too long error, do not know if there is no error.3, Setup after the implementation of success, you can ambari-server start, unfortunately there are errors,Error: Ambari com.mysql.jdbc.exceptions.jdbc4.CommunicationsException:Communications link failureLink failure If there is no problem, it is to change

Directory structure Hadoop cluster (CDH4) practice (0) PrefaceHadoop cluster (CDH4) Practice (1) Hadoop (HDFS) buildHadoop cluster (CDH4) Practice (2) Hbasezookeeper buildHadoop cluster (CDH4) Practice (3) Hive BuildHadoop cluster (CHD4) Practice (4) Oozie build Hadoop cluster (CDH4) practice (0) Preface During my time as a beginner of

Install times wrong: Failed to execute goal org.apache.maven.plugins:maven-antrun-plugin:1.7:run (site) on project Hadoop-hdfs:an Ant B Uildexception has occured:input file/usr/local/hadoop-2.6.0-stable/hadoop-2.6.0-src/hadoop-hdfs-project/ Hadoop-hdfs/target/findbugsxml.xml

upload[Hadoop @ localhost ~] $ Hdfs dfs-lsFound 2 itemsDrwxr-xr-x-hadoop supergroup 0 2018-02-22 23:41 outputDrwxr-xr-x-hadoop supergroup 0 2018-02-23 22:38 upload[Hadoop @ localhost ~] $ Hdfs dfs-ls upload[Hadoop @ localhost ~] $ Hdfs dfs-put my-local.txt upload[

Generally, one machine in the cluster is specified as namenode, and another machine is specified as jobtracker. These machines areMasters. The remaining Machines serve as datanodeAlsoAs tasktracker. These machines areSlaves Official Address :(Http://hadoop.apache.org/common/docs/r0.19.2/cn/cluster_setup.html) 1 prerequisites Make sure that all required software is installed on each node of your cluster: Sun-JDK, ssh, hadoop Javatm 1.5.x mu

install Hadoop: stand-alone mode : Easy to install, almost no configuration, but limited to debugging purposes;Pseudo-Distribution mode : At the same time, the Namenode, DataNode, Jobtracker, Tasktracker, secondary namenode and other 5 processes are started on a single node, simulating the various nodes of distributed operation;fully distributed mode : a normal Hadoop cluster consisting of multipl

Hadoop Foundation----Hadoop Combat (vi)-----HADOOP management Tools---Cloudera Manager---CDH introduction We have already learned about CDH in the last article, we will install CDH5.8 for the following study. CDH5.8 is now a relatively new version of Hadoop with more than hadoop2.0, and it already contains a number of

Now that namenode and datanode1 are available, add the node datanode2 first step: Modify the Host Name of the node to be added hadoop @ datanode1 :~ $ Vimetchostnamedatanode2 Step 2: Modify the host file hadoop @ datanode1 :~ $ Vimetchosts192.168.8.4datanode2127.0.0.1localhost127.0 Now that namenode and datanode1 are available, add the node datanode2 first step: Modify the Host Name of the node to be added

deleted, one row 172.20.115.4 3). Refresh the node online on the master. $ Sbin/hadoop dfsadmin-refreshNodes This operation will migrate data in the background. When the status of this node is displayed as Decommissioned, you can close it safely. 4) You can use the following command to view the datanode status $ Sbin/hadoop dfsadmin-report During data migration, this node should not be involved in tasktrac