Job

Your First Spark Job

Writing a complete read-transform-write Spark job, and understanding the crucial difference between lazy transformations and eager actions.

DataStream Basics

An introduction to Flink's DataStream API, the core abstraction for processing unbounded and bounded streams of data in real time.

Your First Flink Job

A hands-on walkthrough of writing, running, and understanding a simple Flink DataStream job that reads events, transforms them, and writes results.

Building a Word Count Job

A hands-on walkthrough of writing, compiling, and running the canonical Hadoop MapReduce word count program from mapper to driver.

Writing a MapReduce Job in Java

A practical walkthrough of assembling a Driver, Mapper, and Reducer into a runnable Java MapReduce job, from configuration to cluster execution.

Your First Hadoop Job

A hands-on walkthrough of writing, packaging, and running a classic word count MapReduce job on Hadoop, from source to output.

Ansible Tower and AWX

A web-based control plane for Ansible that adds job templates, RBAC, scheduling, and notifications on top of core Ansible, available as the open-source AWX pro…

Jobs and CronJobs

How Kubernetes Jobs run pods to completion for batch work, and how CronJobs schedule Jobs to run on a recurring time-based schedule.