Introduction

This page provides a narrative on Nutch application metrics. It details which metrics are captured for which Nutch Job's within which Tasks.

Metrics are important because they tell you important information about any given Nutch (and subsequently MapReduce) process. They provide accurate measurements about how the process is functioning and provide basis to suggest improvements in your administration and operations endeavors.

Audience

The page is intended for

• users who wish to learn about how Nutch Jobs and Tasks are performing, and
• developers who would wish to further extend/customize Nutch metrics

Related Development Work

N/A

Building Metrics on MapReduce Task Context

Metrics Table

Conclusion