Post 52 | HDPCD | The conclusion

Hi everyone. Finally, we have reached the end of this tutorial series. It’s been so long. We started this journey together on January 15th, 2017, and, 276 days later this beautiful journey is coming to an end. But, we do not need to worry, because, I am working on something new and would love toContinue reading “Post 52 | HDPCD | The conclusion”

Post 48 | HDPCD | Printing the execution plan of a Hive query

Hello, everyone. Welcome to one more tutorial in the HDPCD certification series. In the┬álast┬átutorial, we saw how to enable vectorization in Hive. In this tutorial, we are going to see how to print the execution plan of a Hive query. Let us begin, then. This is one of the simplest┬átutorials in this certification series. InContinue reading “Post 48 | HDPCD | Printing the execution plan of a Hive query”

Spark : map() and flatMap()

Hi guys, Hope you are finding the tutorials helpful. In this tutorial, we are going to see the two transformations which we are going to use a lot while learning Spark. Both map() and flatMap() functions are transformations in Spark. We will discuss these two transformations one by one. Then will see the similarities betweenContinue reading “Spark : map() and flatMap()”