Oozie

Oozie is an open-source workflow management system used to coordinate and schedule complex data processing jobs within big data environments, particularly with Hadoop. It allows users to define a series of tasks—such as data transformations, analysis, or movement—in a structured way, ensuring they run in the correct order and at specified times. Oozie manages dependencies, retries, and error handling, making it easier to automate large-scale data pipelines. Essentially, it acts as a conductor guiding various data tasks smoothly and reliably through their execution lifecycle.