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 51 | HDPCD | Set Hadoop or Hive Configuration property

Hello, everyone. Welcome to the last technical tutorial in the HDPCD certification series. It’s funny! This beautiful journey is coming to an end. In the last tutorial, we saw how to sort the output of a Hive query across multiple reducers. In this tutorial, we are going to see how to set a Hadoop or Hive configurationContinue reading “Post 51 | HDPCD | Set Hadoop or Hive Configuration property”

Post 50 | HDPCD | Order Hive query output across multiple reducers

Hello, everyone. Welcome to one more tutorial in the HDPCD certification series. In the last tutorial, we saw how to enable vectorization in Hive. In this tutorial, we are going to see how to run a subquery within a Hive query. Let us begin, then. The following infographics show the step-by-step process of performing this operation. FromContinue reading “Post 50 | HDPCD | Order Hive query output across multiple reducers”

Post 49 | HDPCD | Using a subquery within a Hive query

Hello, everyone. Welcome to one more tutorial in the HDPCD certification series. In the last tutorial, we saw how to enable vectorization in Hive. In this tutorial, we are going to see how to run a subquery within a Hive query. Let us begin, then. As you can see from the above screenshot, the process of performingContinue reading “Post 49 | HDPCD | Using a subquery within a Hive query”

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 last tutorial, 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 tutorials in this certification series. InContinue reading “Post 48 | HDPCD | Printing the execution plan of a Hive query”

Post 47 | HDPCD | Run a Hive query using Vectorization

Hello, everyone. Welcome to one more tutorial in the HDPCD certification series. In the last tutorial, we saw how to run a Hive Query using TeZ execution engine. In this tutorial, we are going to see how to run a Hive Query using Vectorization. Let us begin, then. Before starting off with the objective of this tutorial, letContinue reading “Post 47 | HDPCD | Run a Hive query using Vectorization”

Post 46 | HDPCD | Run a Hive Query using Tez Execution Engine

Hello, everyone. Welcome to one more tutorial in the HDPCD certification series. In the last tutorial, we saw how to perform a JOIN operation between two Hive tables. In this tutorial, we are going to see how to run a Hive Query using TeZ execution engine. Let us begin, then. As you can see from the aboveContinue reading “Post 46 | HDPCD | Run a Hive Query using Tez Execution Engine”

Post 45 | HDPCD | Join two Hive tables

  Hello, everyone. Welcome to one more tutorial in the HDPCD certification series. In the last tutorial, we saw how to insert a new row into a Hive table. In this tutorial, we are going to see how to join two Hive tables. Let us begin, then. The above info-graphics show the step by step processContinue reading “Post 45 | HDPCD | Join two Hive tables”

Post 44 | HDPCD | Insert a row in the Hive table

Hello, everyone. Welcome to one more tutorial in the HDPCD certification series. In the last tutorial, we saw how to delete a row in a Hive table. In this tutorial, we are going to see how to insert a row in the Hive table. It is quite interesting to see that Hive supports ACID operationsContinue reading “Post 44 | HDPCD | Insert a row in the Hive table”