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A list of all the posts and pages found on the site. For you robots out there is an XML version available for digesting as well.

Pages

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Posts

Blog Timeline

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My blog timeline since it was first created in November 2016.

Spark SQL Internals

5 minute read

This is the continuing post to my previous article Introduction to SparkSQL, intending to understand SparkSQL on a deeper level.

Understand the Spark Deployment Modes

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Spark deployment modes Besides running Spark application in local mode (used only for testing), spark applications can run in different cluster managers: ...

Top reasons why you should shift to spark

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Fast, in-memory (100x faster) or disk (2-10x faster). See Daytona GraySort contest and Official Result. Usability: rich APIs (Scala, Java, Python), conc...

Introduction to Spark SQL

3 minute read

With Spark and RDD core API, we can do almost everything with datasets. Developers define the steps of how to retrieve the data by applying functional transf...

How can two applications share RDDs

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Problem The application isolation in current Spark’s architecture results in the impossibility of sharing data (mostly RDDs) between different applications w...