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Big Data / Blog / Programming

How to Load a Text File into Spark

Loading text files in Spark is a very common task, and luckily it is easy to do. Below are a few examples of loading a text file (located on the…

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January 25, 2021
Blog / Programming

Get the MD5 Hash Code of a File with Java

Getting the hash code of a file is a common programming task. MD5 is a very popular and commonly used hashing algorithm. Getting the MD5 hash code of a file…

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January 25, 2021
Blog / Programming

Generating Fake Data in Java with jFairy

Generating fake data can be a common need when developing applications or loading test data into a database. jFairy is a great fake data generator library built in Java that…

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January 25, 2021
Blog / Programming

How to Create a Fat Jar with Maven

A fat jar or uber jar is a jar that contains the classes of your current project as well as all of the classes on which it depends. For example,…

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January 25, 2021
Big Data / Blog / Programming

Get List of Objects in S3 Bucket with Java

Often when working with files in S3, you need information about all the items in a particular S3 bucket. Below is an example class that extends the AmazonS3Client class to…

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January 25, 2021
Blog / Linux/Shell / Programming

Count Unique Elements in Text File with AWK

Counting the distinct/unique elements of text file is a common task.  Below is an example of doing this is AWK, using sample_data_1.txt. cat sample_data_1.txt \ | awk 'BEGIN{FS="\t"} NR>1{names[$2]=1} END{print…

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January 25, 2021
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