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gaurav46 / Kylin

Core Repo of Kylin OLAP Engine

Home Page:http://www.kylin.io

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Kylin OLAP

Overview

Extreme OLAP Engine for Big Data

An open source distributed Analytical Engine from eBay to provide SQL interface and multi-dimensional analysis (OLAP) on Hadoop to support TB to PB size analysis.

Getting Started

Prerequisites

Hadoop

  • Hadoop: 2.2.0.2.0.6.0-61 or above
  • Hive: 0.12.0.2.0.6.0-61 or above
  • HBase: 0.96.0.2.0.6.0-61-hadoop2

Tested with Hortonworks HDP 2.1.3 and Cloudera Quickstart VM 5.1.

Misc

  • Command hadoop, hive, hbase is workable on your hadoop cluster
  • JDK Runtime: JDK7 (OpenJDK or Oracle JDK)
  • Maven
  • Git
  • Tomcat (CATALINA_HOME being set)
  • Npm

Before Install

  • For the quick tutorial, we assume that your hadoop has priviledges disabled which means any user could run hadoop and hive command

Installation

Depending on different use cases Kylin can be installed differently. There are two major scenarios:

On-Hadoop-CLI installation

If you are free to install Kylin on your hadoop CLI machine or Hadoop sandbox, this is the most convenient scenario, for it puts everything in a single machine.

On-Hadoop-CLI-installation

For normal users, the application in the above picture means Kylin Web, which contains a web interface for cube building, querying and all sorts of management. Kylin Web launches a query engine for querying and a cube build engine for building cubes. These two engines interact with the components in Hadoop CLI, like hive and hbase.

For a hands-on tutorial please visit On-Hadoop-CLI installation.

Off-Hadoop-CLI Installation

This is typically for development environment setup.

Applications does not necessarily mean Kylin Web, it can also be any test cases or java applications running at your local IDE(query engine and cube build engine can be launched programmatically in your code). In this case, it is no longer reasonable to assume that all the Kylin components reside in the same machine as your Hadoop CLI. Fortunately, Kylin still works under such condition with proper settings on your CLI machine.

Off-CLI Installation

For a hands-on tutorial please visit Off-Hadoop-CLI installation

Resources

About

Core Repo of Kylin OLAP Engine

http://www.kylin.io

License:Apache License 2.0

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