Integrate AWS DynamoDB with Spring BootTech by Sunny Srinidhi - June 26, 2019March 12, 20200 Here is another POC to add to the growing list of POCs on my Github profile. Today, we’ll see how to integrate AWS DynamoDB with a Spring Boot application. This is going to be super simple, thanks to the AWS Java SDK and the Spring Data DynamoDB package. Let’s get started then. Dependencies First, as usual, we need to create a Spring Boot project, the dependencies of which look like: <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter</artifactId> </dependency> <dependency> <groupId>com.amazonaws</groupId> <artifactId>aws-java-sdk-dynamodb</artifactId> <version>1.11.573</version>
Connect Apache Spark with MongoDB database using the mongo-spark-connectorData ScienceTech by Sunny Srinidhi - April 3, 2019February 28, 20200 A couple of days back, we saw how we can connect Apache Spark to an Apache HBase database and query the data from a table using a catalog. Today, we’ll see how we can connect Apache Spark to a MongoDB database and get data directly into Spark from there. MongoDB provides us a plugin called the mongo-spark-connector, which will help us connect MongoDB and Spark without any drama at all. We just need to provide the MongoDB connection URI in the SparkConf object, and create a ReadConfig object specifying the collection name. It might sound complicated right now, but once you look at the code, you’ll understand how extremely easy this is. So, let’s look at an example. The Dataset Before we look
Connect Apache Spark to your HBase database (Spark-HBase Connector)Data ScienceTech by Sunny Srinidhi - April 1, 2019January 31, 20202 There will be times when you’ll need the data in your HBase database to be brought into Apache Spark for processing. Usually, you’ll query the database, get the data in whatever format you fancy, and then load that into Spark, maybe using the `parallelize()`function. This works, just fine. But depending on the size of the data, this could cause delays. At least it did for our application. So after some research, we stumbled upon a Spark-HBase connector in Hortonworks repository. Now, what is this connector and why should you be considering this? The Spark-HBase Connector (shc-core) The SHC is a tool provided by Hortonworks to connect your HBase database to Apache Spark so that you can tell your Spark context to pickup the
Simple Apache Kafka Producer and Consumer using Spring BootTech by Sunny Srinidhi - November 23, 2018March 2, 20202 Originally published here: https://medium.com/@contactsunny/simple-apache-kafka-producer-and-consumer-using-spring-boot-41be672f4e2b Before I even start talking about Apache Kafka here, let me answer your question after you read the topic — aren’t there enough posts and guides about this topic already? Yes, there are plenty of reference documents and how-to posts about how to create Kafka producers and consumers in a Spring Boot application. Then why am I writing another post about this? Well, in the future, I’ll be talking about some advanced stuff, in the data science space. Apache Kafka is one of the most used technologies and tools in this space. It kind of becomes important to know how to work with Apache Kafka in a real-world application. So this is an introductory post to the technology, which we’ll be