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| <head> |
| <title>org.apache.hadoop.metrics.spi</title> |
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| The Service Provider Interface for the Metrics API. This package provides |
| an interface allowing a variety of metrics reporting implementations to be |
| plugged in to the Metrics API. Examples of such implementations can be found |
| in the packages <code>org.apache.hadoop.metrics.file</code> and |
| <code>org.apache.hadoop.metrics.ganglia</code>.<p/> |
| |
| Plugging in an implementation involves writing a concrete subclass of |
| <code>AbstractMetricsContext</code>. The subclass should get its |
| configuration information using the <code>getAttribute(<i>attributeName</i>)</code> |
| method. |
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