org.apache.hadoop.hbase.replication.regionserver

Class MetricsSource

java.lang.Object

org.apache.hadoop.hbase.replication.regionserver.MetricsSource

All Implemented Interfaces:

BaseSource

@InterfaceAudience.LimitedPrivate(value="Replication")
public class MetricsSource
extends Object
implements BaseSource

This class is for maintaining the various replication statistics for a source and publishing them through the metrics interfaces.

Field Summary

Fields

Modifier and Type	Field and Description
private MetricsReplicationSourceSource	globalSourceSource
private String	id
private long	lastHFileRefsQueueSize
private Map<String,Long>	lastTimestamps
private static org.slf4j.Logger	LOG
private MetricsReplicationSourceSource	singleSourceSource

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

HBASE_METRICS_SYSTEM_NAME

Constructor Summary

Constructors

Constructor and Description
MetricsSource(String id) Constructor used to register the metrics
MetricsSource(String id, MetricsReplicationSourceSource singleSourceSource, MetricsReplicationSourceSource globalSourceSource) Constructor for injecting custom (or test) MetricsReplicationSourceSources

Method Summary

Modifier and Type	Method and Description
void	clear() Removes all metrics about this Source.
void	decGauge(String gaugeName, long delta) Subtract some amount from a gauge.
void	decrSizeOfHFileRefsQueue(int size)
void	decrSizeOfLogQueue()
Long	getAgeOfLastShippedOp() Get AgeOfLastShippedOp
String	getMetricsContext() Get the metrics context.
String	getMetricsDescription() Get the description of what this source exposes.
String	getMetricsJmxContext() Get the name of the context in JMX that this source will be exposed through.
String	getMetricsName() Get the name of the metrics that are being exported by this source.
String	getPeerID() Get the slave peer ID
int	getSizeOfLogQueue() Get the sizeOfLogQueue
long	getTimestampOfLastShippedOp() Get the timestampsOfLastShippedOp, if there are multiple groups, return the latest one
long	getTimeStampOfLastShippedOp() Deprecated. Since 2.0.0. Removed in 3.0.0.
void	incCounters(String counterName, long delta) Add some amount to a counter.
void	incGauge(String gaugeName, long delta) Add some amount to a gauge.
void	incrBytesSkippedInUncleanlyClosedWALs(long bytes)
void	incrCompletedRecoveryQueue()
void	incrCompletedWAL()
void	incrLogEditsFiltered() The number of log edits filtered out.
void	incrLogEditsFiltered(long delta) Add on the number of log edits filtered
void	incrLogEditsRead() Increment the number of log edits read by one.
private void	incrLogEditsRead(long delta) Add on the the number of log edits read
void	incrLogReadInBytes(long readInBytes) increase the byte number read by source from log file
void	incrRepeatedFileBytes(long bytes)
void	incrRestartedWALReading()
void	incrSizeOfHFileRefsQueue(long size)
void	incrSizeOfLogQueue() Increment size of the log queue.
void	incrUncleanlyClosedWALs()
void	incrUnknownFileLengthForClosedWAL()
void	init() Clear out the metrics and re-prepare the source.
void	refreshAgeOfLastShippedOp(String walGroupId) Convenience method to use the last given timestamp to refresh the age of the last edit.
void	removeMetric(String key) Remove a metric and no longer announce it.
void	setAgeOfLastShippedOp(long timestamp, String walGroup) Set the age of the last edit that was shipped
void	setGauge(String gaugeName, long value) Set a gauge to a specific value.
void	shipBatch(long batchSize, int sizeInBytes) Convience method to apply changes to metrics do to shipping a batch of logs.
void	shipBatch(long batchSize, int sizeInBytes, long hfiles) Convience method to apply changes to metrics do to shipping a batch of logs.
void	updateHistogram(String name, long value) Add some value to a histogram.

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

getMetricRegistryInfo

Field Detail

LOG

private static final org.slf4j.Logger LOG

lastTimestamps

private Map<String,Long> lastTimestamps

lastHFileRefsQueueSize

private long lastHFileRefsQueueSize

id

private String id

singleSourceSource

private final MetricsReplicationSourceSource singleSourceSource

globalSourceSource

private final MetricsReplicationSourceSource globalSourceSource

Constructor Detail

MetricsSource

public MetricsSource(String id)

Constructor used to register the metrics

Parameters:

id - Name of the source this class is monitoring

MetricsSource

public MetricsSource(String id,
                     MetricsReplicationSourceSource singleSourceSource,
                     MetricsReplicationSourceSource globalSourceSource)

Constructor for injecting custom (or test) MetricsReplicationSourceSources

Parameters:

id - Name of the source this class is monitoring

singleSourceSource - Class to monitor id-scoped metrics

globalSourceSource - Class to monitor global-scoped metrics

Method Detail

setAgeOfLastShippedOp

public void setAgeOfLastShippedOp(long timestamp,
                                  String walGroup)

Set the age of the last edit that was shipped

Parameters:

timestamp - write time of the edit

walGroup - which group we are setting

refreshAgeOfLastShippedOp

public void refreshAgeOfLastShippedOp(String walGroupId)

Convenience method to use the last given timestamp to refresh the age of the last edit. Used when replication fails and need to keep that metric accurate.

Parameters:

walGroupId - id of the group to update

incrSizeOfLogQueue

public void incrSizeOfLogQueue()

Increment size of the log queue.

decrSizeOfLogQueue

public void decrSizeOfLogQueue()

incrLogEditsRead

private void incrLogEditsRead(long delta)

Add on the the number of log edits read

Parameters:

delta - the number of log edits read.

incrLogEditsRead

public void incrLogEditsRead()

Increment the number of log edits read by one.

incrLogEditsFiltered

public void incrLogEditsFiltered(long delta)

Add on the number of log edits filtered

Parameters:

delta - the number filtered.

incrLogEditsFiltered

public void incrLogEditsFiltered()

The number of log edits filtered out.

shipBatch

public void shipBatch(long batchSize,
                      int sizeInBytes)

Convience method to apply changes to metrics do to shipping a batch of logs.

Parameters:

batchSize - the size of the batch that was shipped to sinks.

shipBatch

public void shipBatch(long batchSize,
                      int sizeInBytes,
                      long hfiles)

Convience method to apply changes to metrics do to shipping a batch of logs.

Parameters:

batchSize - the size of the batch that was shipped to sinks.

hfiles - total number of hfiles shipped to sinks.

incrLogReadInBytes

public void incrLogReadInBytes(long readInBytes)

increase the byte number read by source from log file

clear

public void clear()

Removes all metrics about this Source.

getAgeOfLastShippedOp

public Long getAgeOfLastShippedOp()

Get AgeOfLastShippedOp

Returns:

AgeOfLastShippedOp

getSizeOfLogQueue

public int getSizeOfLogQueue()

Get the sizeOfLogQueue

Returns:

sizeOfLogQueue

getTimeStampOfLastShippedOp

@Deprecated
public long getTimeStampOfLastShippedOp()

Deprecated. Since 2.0.0. Removed in 3.0.0.

Get the timeStampsOfLastShippedOp, if there are multiple groups, return the latest one

Returns:

lastTimestampForAge

See Also:

getTimestampOfLastShippedOp()

getTimestampOfLastShippedOp

public long getTimestampOfLastShippedOp()

Get the timestampsOfLastShippedOp, if there are multiple groups, return the latest one

Returns:

lastTimestampForAge

getPeerID

public String getPeerID()

Get the slave peer ID

Returns:

peerID

incrSizeOfHFileRefsQueue

public void incrSizeOfHFileRefsQueue(long size)

decrSizeOfHFileRefsQueue

public void decrSizeOfHFileRefsQueue(int size)

incrUnknownFileLengthForClosedWAL

public void incrUnknownFileLengthForClosedWAL()

incrUncleanlyClosedWALs

public void incrUncleanlyClosedWALs()

incrBytesSkippedInUncleanlyClosedWALs

public void incrBytesSkippedInUncleanlyClosedWALs(long bytes)

incrRestartedWALReading

public void incrRestartedWALReading()

incrRepeatedFileBytes

public void incrRepeatedFileBytes(long bytes)

incrCompletedWAL

public void incrCompletedWAL()

incrCompletedRecoveryQueue

public void incrCompletedRecoveryQueue()

init

public void init()

Description copied from interface: BaseSource

Clear out the metrics and re-prepare the source.

Specified by:

init in interface BaseSource

setGauge

public void setGauge(String gaugeName,
                     long value)

Description copied from interface: BaseSource

Set a gauge to a specific value.

Specified by:

setGauge in interface BaseSource

Parameters:

gaugeName - the name of the gauge

value - the value

incGauge

public void incGauge(String gaugeName,
                     long delta)

Description copied from interface: BaseSource

Add some amount to a gauge.

Specified by:

incGauge in interface BaseSource

Parameters:

gaugeName - the name of the gauge

delta - the amount to change the gauge by.

decGauge

public void decGauge(String gaugeName,
                     long delta)

Description copied from interface: BaseSource

Subtract some amount from a gauge.

Specified by:

decGauge in interface BaseSource

Parameters:

gaugeName - the name of the gauge

delta - the amount to change the gauge by.

removeMetric

public void removeMetric(String key)

Description copied from interface: BaseSource

Remove a metric and no longer announce it.

Specified by:

removeMetric in interface BaseSource

Parameters:

key - Name of the gauge to remove.

incCounters

public void incCounters(String counterName,
                        long delta)

Description copied from interface: BaseSource

Add some amount to a counter.

Specified by:

incCounters in interface BaseSource

Parameters:

counterName - the name of the counter

delta - the amount to change the counter by.

updateHistogram

public void updateHistogram(String name,
                            long value)

Description copied from interface: BaseSource

Add some value to a histogram.

Specified by:

updateHistogram in interface BaseSource

Parameters:

name - the name of the histogram

value - the value to add to the histogram

getMetricsContext

public String getMetricsContext()

Description copied from interface: BaseSource

Get the metrics context. For hadoop metrics2 system this is usually an all lowercased string. eg. regionserver, master, thriftserver

Specified by:

getMetricsContext in interface BaseSource

Returns:

The string context used to register this source to hadoop's metrics2 system.

getMetricsDescription

public String getMetricsDescription()

Description copied from interface: BaseSource

Get the description of what this source exposes.

Specified by:

getMetricsDescription in interface BaseSource

getMetricsJmxContext

public String getMetricsJmxContext()

Description copied from interface: BaseSource

Get the name of the context in JMX that this source will be exposed through. This is in ObjectName format. With the default context being Hadoop -> HBase

Specified by:

getMetricsJmxContext in interface BaseSource

getMetricsName

public String getMetricsName()

Description copied from interface: BaseSource

Get the name of the metrics that are being exported by this source. Eg. IPC, GC, WAL

Specified by:

getMetricsName in interface BaseSource