| Package | Description | 
|---|---|
| org.apache.hadoop.metrics.ganglia | Implementation of the metrics package that sends metric data to 
Ganglia. | 
| org.apache.hadoop.metrics.spi | The Service Provider Interface for the Metrics API. | 
| Modifier and Type | Method and Description | 
|---|---|
| void | GangliaContext. emitRecord(String contextName,
                    String recordName,
                    OutputRecord outRec) | 
| Modifier and Type | Method and Description | 
|---|---|
| Map<String,Collection<OutputRecord>> | AbstractMetricsContext. getAllRecords()Retrieves all the records managed by this MetricsContext. | 
| Modifier and Type | Method and Description | 
|---|---|
| protected abstract void | AbstractMetricsContext. emitRecord(String contextName,
                    String recordName,
                    OutputRecord outRec)Sends a record to the metrics system. | 
| protected void | NoEmitMetricsContext. emitRecord(String contextName,
                    String recordName,
                    OutputRecord outRec)Do-nothing version of emitRecord | 
| protected void | CompositeContext. emitRecord(String contextName,
                    String recordName,
                    OutputRecord outRec) | 
| protected void | NullContextWithUpdateThread. emitRecord(String contextName,
                    String recordName,
                    OutputRecord outRec)Do-nothing version of emitRecord | 
| protected void | NullContext. emitRecord(String contextName,
                    String recordName,
                    OutputRecord outRec)Do-nothing version of emitRecord | 
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