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recommended to use, in this sqoop1.4.6 to introduceInstallation Environment:CENOS7 systemSqoop version: 1.4.6hadoop:2.7.3mysql:5.7.15jdk:1.8Download and unzip sqoop1.4.6Install it on a single node.Click Sqoop to download the Sqoop installation file sqoop-1.4.6.bin__hadoop-2.0.4-alpha.tar.gz. Upload the file to the server's/usr/local folder.Execute the following command below # Enter the user directory
of the current user 2. cd/usr/local
# Unzip the
Add a user and access without a passwordAdd User adduser hadoopSet Password passwd hadoopAdd to sudo User GroupChmod + w/etc/sudoersEcho '% hadoop ALL = (ALL) NOPASSWD: all'>/etc/sudoersChmod-w/etc/sudoersSu hadoopSsh-keygen-t rsaMachine InterconnectionInstall mavenSudo mkdir-p/opt/mavenSudo chown-R hadoop: hadoop/opt/mavenTar zxvf apache-maven-3.1.1-bin.tar.gz-C
Tags: hbase (distributed database) installation configuration for Hadoop series #vim regionservers (Add all Datanode host names here)Hdfs-slave1Hdfs-slave24. Distributing files to other Datanode nodes on the clusterScp-r/usr/local/hadoop/hbase [Email protected]:/usr/local/hadoop/Scp-r/usr/local/
On the network on how to install a single-machine mode of Hadoop article many, according to its steps down most of the failure, in accordance with its operation detours through a lot but after all, still solve the problem, so by the way, detailed record of the complete installation process.This article is mainly about how to install Ubuntu after the virtual machine has been set up.The notes I have recorded
Original link http://blog.csdn.net/xumin07061133/article/details/8682424An experimental environment:1. Three physical machines (three hosts that can be virtual virtual machines), one of which is the primary node (Namenode) ip:192.168.30.50, and two as slave nodes (Datanode) ip:192.168.30.51/192.168.30.522. For each host installation JDK1.6 above, and set the environment variables, recommended (such as: java_home=/usr/java/java1.7.0_17), configuration
MastersHost616) Configuration Slaveshost62Host635. Configure host62 and host63 in the same way6. Format the Distributed File system/usr/local/hadoop/bin/hadoop-namenode format7. Running Hadoop1)/usr/local/hadoop/sbin/start-dfs.sh2)/usr/local/hadoop/sbin/start-yarn.sh8. Check:[Email protected] sbin]# JPS4532 ResourceMa
Chd4b1 (hadoop-0.23) for namenode ha installation Configuration
Cloudera chd4b1 version already contains namenode ha, the Community also put namenode ha branch HDFS-1623 merge to trunk version, can achieve hot backup of dual namenode, but currently only supports manual switch, does not support automatic switch, switch progress in the community see: https://issues.apache.org/jira/browse/HDFS-3042
Namenode ha
$./hbase shell2018-07-08 12:17:44,820 WARN [main] util. nativecodeloader:unable to load Native-hadoop library for your platform ... using Builtin-java classes where APPLICABLESLF 4j:class path contains multiple slf4j bindings. Slf4j:found Binding in [jar:file:/users/chong/opt/hbase-1.2.6/lib/slf4j-log4j12-1.7.5.jar!/org/slf4j/impl/ Staticloggerbinder.class]slf4j:found Binding in [jar:file:/users/chong/opt/hadoop
Hadoop pseudo-distributed Installation Steps
Log on as a root user1.1 set static IP
Right-click the icon in the upper-right corner of the centos desktop and choose modify.
Restart the NIC and run the Command Service Network restart.
Verify: Execute the command ifconfig
1.2 Modify host name
Verification: restart the machine1.3 bind the hostname and IP address
Run the command VI/etc/hosts and add a line as
This Hadoop cluster installation uses a total of four nodes, each node IP is as follows:
Master
172.22.120.191
Slave1
172.22.120.192
Slave2
172.22.120.193
Slave3
172.22.120.193
System version CentOS 6.2LJDK Version: 1.7Hadoop version: 1.1.2After completing the four-node system in
The recent time to build up a bit hadoop-2.7.3 + hbase-1.3.1 + zookeeper-3.4.8 + hive-2.3.0 fully distributed platform environment, online query a lot of relevant information, installation success, deliberately recorded down for reference.
first, software preparation
VMware12, hadoop-2.7.3, hbase-1.3.1, zookeeper-3.4.8, hive-2.3.0, jdk-8u65-linux-x64.tar.gz
Se
Various problems encountered in building a hadoop cluster with your peers are as follows:Preface
Some time before the winter vacation, I began to investigate the setup process of Hadoop2.2.0. At that time, I suffered from the absence of machines, but simply ran some data on three laptops. One or two months later, some things have been forgotten. Now the school has applied for a lab and allocated 10 machines (4G + 500G). This is enough for us. We start
are as follows:Export JAVA_HOME=/USR/LOCAL/JDKExport Hadoop_home=/usr/local/hadoopExport path=.: $HADOOP _home/bin: $JAVA _home/bin: $PATH(4) Source/etc/profile(5) Modify the configuration files under the Conf directory hadoop-env.sh, Core-site.xml, Hdfs-site.xml, Mapred-site.xml(6) Hadoop Namenode-format(7) start-all.shVerification: (1) Execute command JPS if y
Using Eclipse to write MapReduce configuration tutorial Online There are many, not to repeat, configuration tutorial can refer to the Xiamen University Big Data Lab blog, written very easy to understand, very suitable for beginners to see, This blog details the installation of Hadoop (Ubuntu version and CentOS Edition) and the way to configure Eclipse to run the MapReduce program.
With eclipse configured, w
The production environment of Hadoop cluster installation and configuration + DNS + NFS environment LinuxISO: CentOS-6.0-i386-bin-DVD.iso32 bit JDKversion: 1.6.0 _ 25-eaforlinuxHad ..
The production environment of Hadoop cluster installation and configuration + DNS + NFS environment LinuxISO: CentOS-6.0-i386-bin-DVD.is
In LinuxYou first need to install the JDK and configure the appropriate environment variablesDownload the hadoop1.2.1 version by wget, if it is a production environment use 1.* version is recommended, because the 2.* version just launched not long, more unstableHttp://mirror.bit.edu.cn/apache/hadoop/common/hadoop-1.2.1/hadoop-1.2.1.tar.gzYou can use the MV to cut
physically stored:You can see that the null value is not stored, so "contents:html" with a query timestamp of T8 will return NULL, the same query timestamp is T9, and the "anchor:my.lock.ca" item also returns NULL. If no timestamp is specified, the most recent data for the specified column should be returned, and the newest values are first found in the table because they are sorted by time. Therefore, if you query "contents" without specifying a timestamp, you will return the T6 data, which ha
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