| Package | Description | 
|---|---|
| org.apache.hadoop.metrics2.lib | 
 A collection of library classes for implementing metrics sources 
 | 
| Modifier and Type | Method and Description | 
|---|---|
static MetricsSystem | 
DefaultMetricsSystem.initialize(String prefix)
Convenience method to initialize the metrics system 
 | 
static MetricsSystem | 
DefaultMetricsSystem.instance()  | 
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