| Package | Description | 
|---|---|
| org.apache.hadoop.hbase.metrics | |
| org.apache.hadoop.metrics2.lib | 
| Class and Description | 
|---|
| DynamicMetricsRegistry An optional metrics registry class for creating and maintaining a
 collection of MetricsMutables, making writing metrics source easier. | 
| Class and Description | 
|---|
| DynamicMetricsRegistry An optional metrics registry class for creating and maintaining a
 collection of MetricsMutables, making writing metrics source easier. | 
| MetricMutableQuantiles Watches a stream of long values, maintaining online estimates of specific quantiles with provably
 low error bounds. | 
| MutableHistogram A histogram implementation that runs in constant space, and exports to hadoop2's metrics2 system. | 
| MutableRangeHistogram Extended histogram implementation with metric range counters. | 
| MutableSizeHistogram Extended histogram implementation with counters for metric size ranges. | 
| MutableTimeHistogram Extended histogram implementation with counters for metric time ranges. | 
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