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Apache Kylin : Implementing OLAP on the Hadoop platform
Building and querying online analytical processing data (OLAP) big data structures in your hadoop platform
Created by Michael Enudi, offered on Udemy
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This course currently has a bestcourses score of 5.1/10, which makes it an average course. Overall, there are probably better courses available for this topic on our platform.
A Comprehensive Course for Learning How to Build and Query Big Data OLAP Cubes Using Apache Kylin.
Apache Kylin is an Apache top-level project that bring OLAP to Big data. This simply means that we can now write complex aggregation queries with different levels of aggregation and expect to get a second or micro-seconds response to our query.
Online analytical processing (OLAP) has been a common word in traditional business intelligence for years but has not been easy with hadoop platform that has become a data lake solution for many. These data lake often have hundreds of millions and even billions of records that organizations want to slice and dice for insights. However, the high latency of query execution in SQL on Hadoop technologies like Apache Hive or Apache Drill often meant that data architect opted to transfer their data back to traditional systems that allow for real time response to query.
Kylin solves all of this.
With Apache Kylin, anyone with the skills can now build OLAP, ROLAP or MOLAP structures using a web UI, deploy it and expect to query these structure with second of response time in mind. Also, one can connect their applications or favorite visualization tools to Kylin to integrate data either for system processing or for visualization.
In this course, we are going to review
- What Kylin is
- How it works
- How to build OLAP cubes in batch and streaming model
- How to deploy the cubes
- How to query cubes
- How to connect external tools and applications to Kylin
What is the target audience?
Big Data Engineers/Developers
Anyone who wishes to be able to write simple to complex aggregation queries of large dataset and wants a low latency response time.
What are the requirements?
You need access to a Big Data Sandbox like Cloudera quickstart VM, Hortonworks HDP sandbox or a cloud-based Hadoop environment with a least 10GB of Ram.
You should have some familiarity SQL and be able to use ODBC or JDBC based tools.
Some familiarity with Linux will be helpful
What do I need to know to get the best out of this course?
Because Kylin uses other hadoop projects to achieve its design a fair understanding of projects like Apache Hive, Apache Kafka, Apache HBase, MapReduce is great for this course. However, one can still use Kylin without any knowledge of these technologies.
It is also worth knowing that no prior knowledge of any big data technology is required to query Kylin or use data integration in running report or data visualizations.
What you will learn
- Understand how OLAP Cube structures are created
- Build and query OLAP Cubes on Hadoop Big Data Platform
- Perform analytical queries on streaming data
- Integrate your big data cube with external tools or application
- Secure your OLAP Cube on the cluster
- Ability to write a SQL query or use SQL query tool is required to be a Kylin User.
- A good understanding of the hadoop big data platform is required to be a Kylin developer or adminstrator
- Knowledge of hadoop technologies like MapReduce, Hive and HBase is necessary but not mandatory