org.apache.hadoop.hbase.coprocessor

Class MetaTableMetrics

java.lang.Object

org.apache.hadoop.hbase.coprocessor.MetaTableMetrics

All Implemented Interfaces:

Coprocessor, RegionCoprocessor

@InterfaceAudience.Private
public class MetaTableMetrics
extends Object
implements RegionCoprocessor

A coprocessor that collects metrics from meta table.

These metrics will be available through the regular Hadoop metrics2 sinks (ganglia, opentsdb, etc) as well as JMX output.

See Also:

MetaTableMetrics

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.hadoop.hbase.Coprocessor

Coprocessor.State

Field Summary

Fields inherited from interface org.apache.hadoop.hbase.Coprocessor

PRIORITY_HIGHEST, PRIORITY_LOWEST, PRIORITY_SYSTEM, PRIORITY_USER, VERSION

Constructor Summary

Constructors

Constructor and Description
MetaTableMetrics()

Method Summary

Modifier and Type	Method and Description
Optional<RegionObserver>	getRegionObserver()
void	start(CoprocessorEnvironment env)
void	stop(CoprocessorEnvironment env)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.hadoop.hbase.coprocessor.RegionCoprocessor

getBulkLoadObserver, getEndpointObserver

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

getServices

Constructor Detail

MetaTableMetrics

public MetaTableMetrics()

Method Detail

getRegionObserver

public Optional<RegionObserver> getRegionObserver()

Specified by:

getRegionObserver in interface RegionCoprocessor

start

public void start(CoprocessorEnvironment env)
           throws IOException

Specified by:

start in interface Coprocessor

Throws:

IOException

stop

public void stop(CoprocessorEnvironment env)
          throws IOException

Specified by:

stop in interface Coprocessor

Throws:

IOException