org.apache.hadoop.hbase.coprocessor

Interface WALCoprocessorEnvironment

All Superinterfaces:

CoprocessorEnvironment<WALCoprocessor>

All Known Implementing Classes:

WALCoprocessorHost.WALEnvironment

@InterfaceAudience.LimitedPrivate(value="Coprocesssor")
 @InterfaceStability.Evolving
public interface WALCoprocessorEnvironment
extends CoprocessorEnvironment<WALCoprocessor>

Method Summary

Modifier and Type	Method and Description
MetricRegistry	getMetricRegistryForRegionServer() Returns a MetricRegistry that can be used to track metrics at the region server level.
WAL	getWAL() Returns reference to the region server's WAL

Methods inherited from interface org.apache.hadoop.hbase.CoprocessorEnvironment

getClassLoader, getConfiguration, getHBaseVersion, getInstance, getLoadSequence, getPriority, getVersion

Method Detail

getWAL

WAL getWAL()

Returns reference to the region server's WAL

getMetricRegistryForRegionServer

MetricRegistry getMetricRegistryForRegionServer()

Returns a MetricRegistry that can be used to track metrics at the region server level.

See ExampleRegionServerObserverWithMetrics class in the hbase-examples modules for examples of how metrics can be instantiated and used.

Returns:

A MetricRegistry for the coprocessor class to track and export metrics.