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Category: Spark

Validating Spark DataFrame Schemas

May, 2019 adarsh Leave a comment

In this article I will illustrate how to do schema discovery for validation of column name before firing a select…

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Posted in: Data Analytics, Spark Filed under: datasets and dataframe, Spark Rdd

spark merge two dataframes with different columns or schema

May, 2019 adarsh 1 Comment

In this article I will illustrate how to merge two dataframes with different schema. Spark supports below api for the…

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Posted in: Data Analytics, Spark Filed under: datasets and dataframe, Spark Rdd

spark converting nested json to csv

May, 2019 adarsh Leave a comment

In this article I will illustrate how to convert a nested json to csv in apache spark. Spark does not…

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Posted in: Data Analytics, Spark Filed under: datasets and dataframe, Spark Rdd

submit spark job programmatically using SparkLauncher

March, 2019 adarsh Leave a comment

In this article I will illustrate how to submit a spark job programmatically using SparkLauncher. Let us take a use…

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Posted in: aws, Spark, stream processing Filed under: kafka, Spark Rdd, spark streaming

running spark in mesosphere

March, 2019 adarsh Leave a comment

In this article i will illustrate how to install spark package and run a spark application in mesosphere. I will…

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Posted in: mesosphere, Spark

spark read avro data from s3

January, 2019 adarsh 1 Comment

In this article i will demonstrate how to read and write avro data in spark from amazon s3. We will…

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Posted in: aws, Spark Filed under: aws emr, datasets and dataframe, Spark Rdd

spark using custom outputcommitter like s3 committer from netflix

December, 2018 adarsh Leave a comment

In this article i will demonstrate how to write our own custom output format and custom committer in spark. I…

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Posted in: aws, Spark Filed under: aws emr, Spark Rdd

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