hadoop hive tutorial

map phase through the script/bin/CAT (like hadoop streaming). Similarly-streaming can be used on the reduce side (please see the hive tutorial or examples)Actual ExampleCreate a tableCreate Table u_data (Userid int,Movieid int,Rating int,Unixtime string)Row format delimitedFields terminated by '/t'Stored as textfile;Download the sample data file and decompress i

This document describes how to manually install the cloudera hive cdh4.2.0 cluster. For environment setup and hadoop and hbase installation processes, see the previous article.Install hive Hive is installed on mongotop1. Note that hive saves metadata using the Derby database

The first contact with the Hadoop technology friends will certainly be the system under the parasitic all open source projects confused, I can guarantee that hive,pig,hbase these open source technology will make you confused, it does not matter confused not only you a, such as a rookie of the post of doubt, when the use of Hbase and When do I use Hive? .... Ask t

Hive Introduction Hive is a data warehouse infrastructure built on Hadoop. It provides a range of tools that can be used for data extraction and transformation loading (ETL), a mechanism for storing, querying, and analyzing large data stored in Hadoop. Hive defines a simple

Z Excerpt from: http://www.linuxidc.com/Linux/2014-03/98978.htmHadoop Eco-CirclePigA lightweight scripting language that operates on Hadoop, originally launched by Yahoo, but is now on the decline. Yahoo itself slowly withdrew from the maintenance of pig after the open source of its contribution to the open source community by all enthusiasts to maintain. But some companies are still using it, but I don't think it's better to use

Chapter 1: IntroductionRecently, the telecommunications group held a big data technology training class, according to the requirements, Hadoop small white I made a comparison between the two, to do a practical operation to do a record it, hey ...The similarities between the two:Both 1.hbase and Hive are architected on top of Hadoop. is using

Hadoop series hive (data warehouse) installation and configuration1. Install in namenodeCD/root/softTar zxvf apache-hive-0.13.1-bin.tar.gzMv apache-hive-0.13.1-bin/usr/local/hadoop/hive2. Configure environment variables (each node needs to be added)Open/etc/profile# Add the

1. Hive MySQL metastore installation Preparation Unzip the hive-0.12.0.tar.gz to the/zzy/. # TAR-ZXVF Hive-0.12.0.tar.gz-c/zzy (-c Specifies the path after unpacking) Modify the/etc/profile file to add hive to the environment variable # Vim/etc/profile Export java_home=/usr/java/jd

Installation version hadoop-2.0.0-cdh4.2.0hbase-0.94.2-cdh4.2.0hive-0.10.0-cdh4.2.0jdk1.6.0_38Instructions before installation The installation directory is/OPT. Check the hosts file Disable Firewall Set Clock Synchronization Instructions for use After hadoop, hbase, and hive are successfully installed, the startup method is as follows: Start DFS and mapre

Tags: Hadoop database hive Finereport1. DescriptionHadoop is a popular distributed computing solution, and Hive is a Hadoop-based data analysis tool. In general, the operation of Hive is done through the CLI, that is, the Linux console, but in essence, each connection is sto

We introduced the two basic pillars of HDFs and MapReduce for the Hadoop project, and then introduced the subproject Pig: a MapReduce upper-level client that processes data under HDFS in a SQL-like, data-flow-oriented language. This greatly satisfies those programmers who do not have Java and do not write MapReduce. But it is tricky for data analysts, DBAs, and so on, who have previously been working on relational database data analysis such as Oracle

/mysqladmin-u root password ' root '8) Log in to MySQL as the root userMysql-uroot–prootInstalling HiveHive is installed on the master node.1) Create hive users, databases, etc. in MySQLInsert into Mysql.user (Host,user,password) VALUES ("localhost", "Hive", Password ("Hive"));Create DATABASE hive;Grant all on

, Add at the end: Export Java_home= ....e xport hadoop_home= ...7. Enter the conf directory under the Hive installation directory , according to hive-default.xml.template Copy out two files : C P hive-default.xml.template hive-default.xmlC P hive-default.xml.template

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, hi