We have two types of automatic backups in dynamodb one is point in time and another one is snapshots.

System design

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Apache spark unit tests

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How can we pivot on spark?

Why a single file on your repository that describes the project could make life much easier for newcomer programmers

DataFrame.createOrReplaceTempView - Creates or replaces a local temporary view with this DataFrame.

The lifetime of this temporary table is tied to the SparkSession that was used to create this DataFrame.

Spark SQL is a Spark module for structured data processing. It provides a programming abstraction called DataFrames and can also act as a distributed SQL query engine. It enables unmodified Hadoop Hive queries to run up to 100x faster on existing deployments and data.

We will describe how to use Apache Spark to get top 100 words from a file!