Yum Java

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Migrating from MySQL to Mariadb (CentOS)

Here's an excerpt of the background, followed by a record of the operations I migrated from MySQL 5.5.31 to mariadb 5.5.31 on CentOS 6.4.   Finally, I found a better way to migrate. 1. Background introduction MySQL is the world's most popular open source relational database. 2008, Sun acquired MySQL. Then, in 2010, Oracle bought Sun, and MySQL fell into Oracle's hands. Oracl ...

Source Cloud Computing Technology Series (vii) Cloudera (Hadoop 0.20)

Virtual set of CentOS 5.3 os. Download Jdk-6u16-linux-i586-rpm.bin [root@hadoop ~]# chmod +x jdk-6u16-linux-i586-rpm.bin [Root@hadoop ~]#./ Jdk-6u16-linux-i586-rpm.bin [root@hadoop ~]# java-version java ver ...

Top 10 Hadoop Administrators Best Practices

Preface Having been in contact with Hadoop for two years, I encountered a lot of problems during that time, including both classic NameNode and JobTracker memory overflow problems, as well as HDFS small file storage issues, both task scheduling and MapReduce performance issues. Some problems are Hadoop's own shortcomings (short board), while others are not used properly. In the process of solving the problem, sometimes need to turn the source code, and sometimes to colleagues, friends, encounter ...

Hadoop cluster Environment Setup

1 Hadoop Cluster Planning 1.1 Total A, B, C three machines;   1.2 A as master,b as slave1,c as Slave2; 1.3 IP &http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; a:192.168.1.103; b:192.168.1.104; c:192.168.1 ...

Docker Learning Notes

Docker study notes one. Update kernel, upgrade kernel to 3.x two. Install docker:rpm--import/etc/pki/rpm-gpg/rpm-gpg-key-epel-6 yum-y install Docker-io three. Start Docker:service Docker start Chkconfig Docker on four. Download base Mirror: Docker Pull Centos:lat ...

Hypertable on HDFS (Hadoop) installation

Hypertable on HDFS (Hadoop) Installation Hadoop-hdfs Installation Guide Process &http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; 4.2. hypertable on HDFS Create working directory $ Hadoop fs-mkdir/hypertable$ Hadoop FS ...

Fit2cloudfor Qingyun officially online

Recently, Fit2cloud released Fit2cloud for Qingyun Qingcloud, Qingyun is Fit2cloud following Amazon AWS and Aliyun after the third supported public cloud.   Fit2cloud's online service offers free packages for users to manage virtual machines within 10 free of charge. Why Fit2cloud Choose Qingyun qingcloud? What can fit2cloud do to help Qingyun users? For these concerns of the industry, Fit2cloud co-founder and CE ...

Summary and Solution of HDP error

Hdp hadoop installation is not a smooth success every time, inevitably will always report a lot of errors, here are some wrong solutions.

Cluster installation configuration Hadoop detailed diagram

Cluster installation configuration Hadoop cluster nodes: Node4, Node5, Node6, Node7, Node8.   Specific schema: The operating system is: CentOS release 5.5 (Final) installation Step one, create the Hadoop user group. Second, the installation of JDK. Download the installation JDK. The installation directory is as follows: Third, modify the machine name, modify the file hosts. As follows: Four, installs the SSH service. ...

Hadoop basic tutorial distributed environment to build

Earlier, we were already running Hadoop on a single machine, but we know that Hadoop supports distributed, and its advantage is that it is distributed, so let's take a look at the environment. Here we use a strategy to simulate the environment. We use three Ubuntu machines, one for the master and the other two for the slaver. At the same time, this host, we use the first chapter to build a good environment. We use the steps similar to the first chapter to operate: 1, the operating environment to take ...

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