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Why do we organise this workshop about Apache Spark ?
Big Data is the hype of the moment in ICT and marketing. Since its inception in 2007, Apache Hadoop has been looked at as the de facto standard for the storage and processing of big data volumes in batch.
But every technology has its limitations, and this is no different for Hadoop: it is batch-oriented and the MapReduce framework is too limited for handling all types of data analysis within the same technology stack.
Because the volume and speed of data generation gradually increases, so does the need for faster data processing and analysis to answer the needs and expectations of end users.
Apache Spark solves the problem of speed and versatility by offering an "open source data analytics cluster computing framework". Spark was developed in 2009 at the AMPLab (Algorithms, Machines, and People Lab) of the University of California in Berkeley, and donated to the open source community in 2010. It is faster than Hadoop, in some cases 100 times faster, and it offers a framework that supports different types of data analysis within the same technology stack: fast interactive queries, streaming analysis, graph analysis and machine learning. During this two-day hands-on workshop, we discuss the theory and practice of several data analysis applications.
Who should attend this workshop?
This workshop is mainly aimed at developers, data analysts and data scientists who want to know more about Apache Spark. This course uses a hands-on approach to teach you the basics of Spark and give you a flying start.
You get an introduction to all Spark components from the perspective of the "data developer". Some experience with programming is necessary to get the most out of this course.
The exercises are implemented on your own laptop using Python or Scala, and vary from easy to complex, gradually adding functionality.
We also offer this training as an in-house course for a minimum of 5 people from your company.
Spark was developed in Scala, a high-level programming language that combines object-oriented and functional programming. We look at the definition of variables, functions and the use of collections in Scala.
We look at the Spark API from the perspective of the "Data Developer": from prototyping in the Spark Shell to the compilation and packaging of Spark applications for a cluster, and how this application is efficiently executed on a cluster.
The following topics will be covered:
Having read-write shared variables across Spark tasks running on clusters would be inefficient. However, Spark does provide two limited types of shared variables for two common usage patterns: broadcast variables and accumulators.
Which techniques are available to speed up Spark programs ? We look at and compare multiple concepts and approaches.
Besides the Spark core module, we look at a number of modules that were added to the Spark stack:
A more extended, guided exercise in which most of the Spark modules are combined, showing the true power of Spark.