org.apache.hadoop.hbase.regionserver.wal

Class MetricsWALSourceImpl

java.lang.Object

org.apache.hadoop.hbase.metrics.BaseSourceImpl

org.apache.hadoop.hbase.regionserver.wal.MetricsWALSourceImpl

All Implemented Interfaces:

BaseSource, MetricsWALSource, org.apache.hadoop.metrics2.MetricsSource

@InterfaceAudience.Private
public class MetricsWALSourceImpl
extends BaseSourceImpl
implements MetricsWALSource

Class that transitions metrics from MetricsWAL into the metrics subsystem. Implements BaseSource through BaseSourceImpl, following the pattern.

See Also:

MetricsWALSource

Field Summary

Fields

Modifier and Type	Field and Description
private MutableFastCounter	appendCount
private MetricHistogram	appendSizeHisto
private MetricHistogram	appendTimeHisto
private MutableFastCounter	logRollRequested
private MutableFastCounter	lowReplicationLogRollRequested
private MutableFastCounter	slowAppendCount
private MetricHistogram	syncTimeHisto
private MutableFastCounter	writtenBytes

Fields inherited from class org.apache.hadoop.hbase.metrics.BaseSourceImpl

metricsAdapter, metricsContext, metricsDescription, metricsJmxContext, metricsName, metricsRegistry, registry

Fields inherited from interface org.apache.hadoop.hbase.regionserver.wal.MetricsWALSource

APPEND_COUNT, APPEND_COUNT_DESC, APPEND_SIZE, APPEND_SIZE_DESC, APPEND_TIME, APPEND_TIME_DESC, LOW_REPLICA_ROLL_REQUESTED, LOW_REPLICA_ROLL_REQUESTED_DESC, METRICS_CONTEXT, METRICS_DESCRIPTION, METRICS_JMX_CONTEXT, METRICS_NAME, ROLL_REQUESTED, ROLL_REQUESTED_DESC, SLOW_APPEND_COUNT, SLOW_APPEND_COUNT_DESC, SYNC_TIME, SYNC_TIME_DESC, WRITTEN_BYTES, WRITTEN_BYTES_DESC

Fields inherited from interface org.apache.hadoop.hbase.metrics.BaseSource

HBASE_METRICS_SYSTEM_NAME

Constructor Summary

Constructors

Constructor and Description
MetricsWALSourceImpl()
MetricsWALSourceImpl(String metricsName, String metricsDescription, String metricsContext, String metricsJmxContext)

Method Summary

Modifier and Type	Method and Description
long	getSlowAppendCount()
long	getWrittenBytes()
void	incrementAppendCount() Increment the count of wal appends
void	incrementAppendSize(long size) Add the append size.
void	incrementAppendTime(long time) Add the time it took to append.
void	incrementLogRollRequested()
void	incrementLowReplicationLogRoll()
void	incrementSlowAppendCount() Increment the number of appends that were slow
void	incrementSyncTime(long time) Add the time it took to sync the wal.
void	incrementWrittenBytes(long val)

Methods inherited from class org.apache.hadoop.hbase.metrics.BaseSourceImpl

decGauge, getMetrics, getMetricsContext, getMetricsDescription, getMetricsJmxContext, getMetricsName, getMetricsRegistry, incCounters, incGauge, init, removeMetric, setGauge, updateHistogram

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.metrics.BaseSource

decGauge, getMetricRegistryInfo, getMetricsContext, getMetricsDescription, getMetricsJmxContext, getMetricsName, incCounters, incGauge, init, removeMetric, setGauge, updateHistogram

Field Detail

appendSizeHisto

private final MetricHistogram appendSizeHisto

appendTimeHisto

private final MetricHistogram appendTimeHisto

syncTimeHisto

private final MetricHistogram syncTimeHisto

appendCount

private final MutableFastCounter appendCount

slowAppendCount

private final MutableFastCounter slowAppendCount

logRollRequested

private final MutableFastCounter logRollRequested

lowReplicationLogRollRequested

private final MutableFastCounter lowReplicationLogRollRequested

writtenBytes

private final MutableFastCounter writtenBytes

Constructor Detail

MetricsWALSourceImpl

public MetricsWALSourceImpl()

MetricsWALSourceImpl

public MetricsWALSourceImpl(String metricsName,
                            String metricsDescription,
                            String metricsContext,
                            String metricsJmxContext)

Method Detail

incrementAppendSize

public void incrementAppendSize(long size)

Description copied from interface: MetricsWALSource

Add the append size.

Specified by:

incrementAppendSize in interface MetricsWALSource

incrementAppendTime

public void incrementAppendTime(long time)

Description copied from interface: MetricsWALSource

Add the time it took to append.

Specified by:

incrementAppendTime in interface MetricsWALSource

incrementAppendCount

public void incrementAppendCount()

Description copied from interface: MetricsWALSource

Increment the count of wal appends

Specified by:

incrementAppendCount in interface MetricsWALSource

incrementSlowAppendCount

public void incrementSlowAppendCount()

Description copied from interface: MetricsWALSource

Increment the number of appends that were slow

Specified by:

incrementSlowAppendCount in interface MetricsWALSource

incrementSyncTime

public void incrementSyncTime(long time)

Description copied from interface: MetricsWALSource

Add the time it took to sync the wal.

Specified by:

incrementSyncTime in interface MetricsWALSource

incrementLogRollRequested

public void incrementLogRollRequested()

Specified by:

incrementLogRollRequested in interface MetricsWALSource

incrementLowReplicationLogRoll

public void incrementLowReplicationLogRoll()

Specified by:

incrementLowReplicationLogRoll in interface MetricsWALSource

getSlowAppendCount

public long getSlowAppendCount()

Specified by:

getSlowAppendCount in interface MetricsWALSource

incrementWrittenBytes

public void incrementWrittenBytes(long val)

Specified by:

incrementWrittenBytes in interface MetricsWALSource

getWrittenBytes

public long getWrittenBytes()

Specified by:

getWrittenBytes in interface MetricsWALSource