Package org.apache.nutch.metrics

package org.apache.nutch.metrics

Metrics infrastructure for Apache Nutch.

This package provides centralized constants and utilities for Hadoop MapReduce metrics/counters following Prometheus naming conventions.

The main class is NutchMetrics which defines all counter group names and counter names as constants.

Since:

1.22

Class	Description
ErrorTracker	A utility class for tracking errors by category with automatic classification.
ErrorTracker.ErrorType	Error type categories for classification.
LatencyTracker	A utility class for tracking latency metrics using TDigest for percentile calculation.
NutchMetrics	Centralized constants for Hadoop metrics counter groups and names.