How Does An Hadoop Application Look Like Or Their Basic Components?

1.	How Does An Hadoop Application Look Like Or Their Basic Components?
Answer» Minimally an Hadoop application would have following components. Input location of data Output location of processed data. A map task. A REDUCED task. Job configuration The Hadoop job client then SUBMITS the job (jar/executable etc.) and configuration to the JobTracker which then assumes the responsibility of distributing the software / configuration to the slaves, scheduling tasks and MONITORING them, providing status and DIAGNOSTIC information to the job-client. Minimally an Hadoop application would have following components. The Hadoop job client then submits the job (jar/executable etc.) and configuration to the JobTracker which then assumes the responsibility of distributing the software / configuration to the slaves, scheduling tasks and monitoring them, providing status and diagnostic information to the job-client.

Answer»

Minimally an Hadoop application would have following components.

Input location of data
Output location of processed data.
A map task.
A REDUCED task.
Job configuration

The Hadoop job client then SUBMITS the job (jar/executable etc.) and configuration to the JobTracker which then assumes the responsibility of distributing the software / configuration to the slaves, scheduling tasks and MONITORING them, providing status and DIAGNOSTIC information to the job-client.

Minimally an Hadoop application would have following components.

The Hadoop job client then submits the job (jar/executable etc.) and configuration to the JobTracker which then assumes the responsibility of distributing the software / configuration to the slaves, scheduling tasks and monitoring them, providing status and diagnostic information to the job-client.

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