This extends Spark submit – reading a file from HDFS. A SequenceFile is a flat file consisting of binary key/value pairs. It is extensively used in MapReduce as input/output formats....

Step 1: Create a simple maven project. Step 2: Import the “simple-spark” maven project into eclipse or IDE of your choice. Step 3: Modify the pom.xml file include 1) relevant...

A DataFrame is an immutable distributed collection of data like an RDD, but unlike an RDD, data is organized into named columns of a table in a relational database. This...

We know that the following code snippets in Spark will write each JavaRDD element to a single file What if you want to write each employee history to a separate...

Step 1: The pom.xml file that has all the relevant dependencies to Spark, Avro & hadoop libraries. Step 2: Avro schema /schema/employee.avsc file under src/main/resources folder. … Read more ›...

Step 1: pom.xml with library dependencies. It is important to note that 1) “https://repository.cloudera.com/artifactory/cloudera-repos/” is added as the “Cloudera Maven Repository” … Read more ›...

Using Spark streaming data can be ingested from many sources like Kafka, Flume, HDFS, Unix/Windows File system, etc. In this example, let’s run the Spark in a local mode to...

This extends the Spark streaming with “textFileStream” simple tutorial to use fileStream(…) and PortableDataStream. The pom.xml file is same as the previous Spark streaming tutorial. … Read more ›...