Package org.apache.hadoop.hbase.io

Class MetricsIOSourceImpl

java.lang.Object

org.apache.hadoop.hbase.metrics.BaseSourceImpl

org.apache.hadoop.hbase.io.MetricsIOSourceImpl

All Implemented Interfaces:

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

@Private
public class MetricsIOSourceImpl
extends BaseSourceImpl
implements MetricsIOSource

Field Summary

Fields

Modifier and Type	Field	Description
private final MetricHistogram	fsPReadTimeHisto
private final MetricHistogram	fsReadTimeHisto
private final MutableFastCounter	fsSlowReads
private final MetricHistogram	fsWriteTimeHisto
private final MetricsIOWrapper	wrapper

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.metrics.BaseSource

HBASE_METRICS_SYSTEM_NAME

Fields inherited from interface org.apache.hadoop.hbase.io.MetricsIOSource

CHECKSUM_FAILURES_DESC, CHECKSUM_FAILURES_KEY, FS_PREAD_TIME_HISTO_DESC, FS_PREAD_TIME_HISTO_KEY, FS_READ_TIME_HISTO_DESC, FS_READ_TIME_HISTO_KEY, FS_WRITE_HISTO_KEY, FS_WRITE_TIME_HISTO_DESC, METRICS_CONTEXT, METRICS_DESCRIPTION, METRICS_JMX_CONTEXT, METRICS_NAME, SLOW_FS_READS_DESC, SLOW_FS_READS_KEY

Constructor Summary

Constructors

Constructor	Description
MetricsIOSourceImpl(String metricsName, String metricsDescription, String metricsContext, String metricsJmxContext, MetricsIOWrapper wrapper)
MetricsIOSourceImpl(MetricsIOWrapper wrapper)

Method Summary

Modifier and Type	Method	Description
void	getMetrics(org.apache.hadoop.metrics2.MetricsCollector metricsCollector, boolean all)
void	incrSlowFsRead()
void	updateFsPReadTime(long t)	Update the fs positional read time histogram
void	updateFsReadTime(long t)	Update the fs sequential read time histogram
void	updateFsWriteTime(long t)	Update the fs write time histogram

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

decGauge, 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 Details

wrapper

private final MetricsIOWrapper wrapper

fsReadTimeHisto

private final MetricHistogram fsReadTimeHisto

fsPReadTimeHisto

private final MetricHistogram fsPReadTimeHisto

fsWriteTimeHisto

private final MetricHistogram fsWriteTimeHisto

fsSlowReads

private final MutableFastCounter fsSlowReads

Constructor Details

MetricsIOSourceImpl

public MetricsIOSourceImpl(MetricsIOWrapper wrapper)

MetricsIOSourceImpl

public MetricsIOSourceImpl(String metricsName,
 String metricsDescription,
 String metricsContext,
 String metricsJmxContext,
 MetricsIOWrapper wrapper)

Method Details

updateFsReadTime

public void updateFsReadTime(long t)

Description copied from interface: MetricsIOSource

Update the fs sequential read time histogram

Specified by:

updateFsReadTime in interface MetricsIOSource

Parameters:

t - time it took, in milliseconds

updateFsPReadTime

public void updateFsPReadTime(long t)

Description copied from interface: MetricsIOSource

Update the fs positional read time histogram

Specified by:

updateFsPReadTime in interface MetricsIOSource

Parameters:

t - time it took, in milliseconds

updateFsWriteTime

public void updateFsWriteTime(long t)

Description copied from interface: MetricsIOSource

Update the fs write time histogram

Specified by:

updateFsWriteTime in interface MetricsIOSource

Parameters:

t - time it took, in milliseconds

incrSlowFsRead

public void incrSlowFsRead()

Specified by:

incrSlowFsRead in interface MetricsIOSource

getMetrics

public void getMetrics(org.apache.hadoop.metrics2.MetricsCollector metricsCollector,
 boolean all)

Specified by:

getMetrics in interface org.apache.hadoop.metrics2.MetricsSource

Overrides:

getMetrics in class BaseSourceImpl