Package org.apache.hadoop.hbase.master

Class MetricsMaster

java.lang.Object

org.apache.hadoop.hbase.master.MetricsMaster

@Evolving
@Private
public class MetricsMaster
extends Object

This class is for maintaining the various master statistics and publishing them through the metrics interfaces.

This class has a number of metrics variables that are publicly accessible; these variables (objects) have methods to update their values.

Field Summary

Fields

Modifier and Type	Field	Description
private static final org.slf4j.Logger	LOG
private MetricsMasterProcSource	masterProcSource
private MetricsMasterQuotaSource	masterQuotaSource
private MetricsMasterSource	masterSource
private ProcedureMetrics	serverCrashProcMetrics

Constructor Summary

Constructors

Constructor	Description
MetricsMaster(MetricsMasterWrapper masterWrapper)

Method Summary

Modifier and Type	Method	Description
static ProcedureMetrics	convertToProcedureMetrics(OperationMetrics metrics)	This is utility function that converts OperationMetrics to ProcedureMetrics.
MetricsMasterProcSource	getMetricsProcSource()
MetricsMasterQuotaSource	getMetricsQuotaSource()
MetricsMasterSource	getMetricsSource()
ProcedureMetrics	getServerCrashProcMetrics()	Returns Set of metrics for assign procedure
void	incrementQuotaObserverTime(long executionTime)	Sets the execution time of a period of the QuotaObserverChore.
void	incrementReadRequests(long inc)
void	incrementRequests(long inc)
void	incrementSnapshotFetchTime(long executionTime)	Sets the execution time to fetch the mapping of snapshots to originating table.
void	incrementSnapshotObserverTime(long executionTime)	Sets the execution time of a period of the SnapshotQuotaObserverChore.
void	incrementSnapshotSizeComputationTime(long executionTime)	Sets the execution time to compute the size of a single snapshot.
void	incrementWriteRequests(long inc)
void	setNumNamespacesInSpaceQuotaViolation(long numNamespacesInViolation)	Sets the number of namespaces in violation of a space quota.
void	setNumRegionSizeReports(long numRegionReports)	Sets the number of region size reports the master currently has in memory.
void	setNumSpaceQuotas(long numSpaceQuotas)	Sets the number of space quotas defined.
void	setNumTableInSpaceQuotaViolation(long numTablesInViolation)	Sets the number of table in violation of a space quota.

Methods inherited from class java.lang.Object

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

Field Details

LOG

private static final org.slf4j.Logger LOG

masterSource

private MetricsMasterSource masterSource

masterProcSource

private MetricsMasterProcSource masterProcSource

masterQuotaSource

private MetricsMasterQuotaSource masterQuotaSource

serverCrashProcMetrics

private ProcedureMetrics serverCrashProcMetrics

Constructor Details

MetricsMaster

public MetricsMaster(MetricsMasterWrapper masterWrapper)

Method Details

getMetricsSource

public MetricsMasterSource getMetricsSource()

getMetricsProcSource

public MetricsMasterProcSource getMetricsProcSource()

getMetricsQuotaSource

public MetricsMasterQuotaSource getMetricsQuotaSource()

incrementRequests

public void incrementRequests(long inc)

Parameters:

inc - How much to add to requests.

incrementReadRequests

public void incrementReadRequests(long inc)

Parameters:

inc - How much to add to read requests.

incrementWriteRequests

public void incrementWriteRequests(long inc)

Parameters:

inc - How much to add to write requests.

setNumSpaceQuotas

public void setNumSpaceQuotas(long numSpaceQuotas)

Sets the number of space quotas defined.

See Also:

• MetricsMasterQuotaSource.updateNumSpaceQuotas(long)

setNumTableInSpaceQuotaViolation

public void setNumTableInSpaceQuotaViolation(long numTablesInViolation)

Sets the number of table in violation of a space quota.

See Also:

• MetricsMasterQuotaSource.updateNumTablesInSpaceQuotaViolation(long)

setNumNamespacesInSpaceQuotaViolation

public void setNumNamespacesInSpaceQuotaViolation(long numNamespacesInViolation)

Sets the number of namespaces in violation of a space quota.

See Also:

• MetricsMasterQuotaSource.updateNumNamespacesInSpaceQuotaViolation(long)

setNumRegionSizeReports

public void setNumRegionSizeReports(long numRegionReports)

Sets the number of region size reports the master currently has in memory.

See Also:

• MetricsMasterQuotaSource.updateNumCurrentSpaceQuotaRegionSizeReports(long)

incrementQuotaObserverTime

public void incrementQuotaObserverTime(long executionTime)

Sets the execution time of a period of the QuotaObserverChore.

Parameters:

executionTime - The execution time in milliseconds.

See Also:

• MetricsMasterQuotaSource.incrementSpaceQuotaObserverChoreTime(long)

getServerCrashProcMetrics

public ProcedureMetrics getServerCrashProcMetrics()

Returns Set of metrics for assign procedure

convertToProcedureMetrics

public static ProcedureMetrics convertToProcedureMetrics(OperationMetrics metrics)

This is utility function that converts OperationMetrics to ProcedureMetrics. NOTE: Procedure framework in hbase-procedure module accesses metrics common to most procedures through ProcedureMetrics interface. Metrics source classes in hbase-hadoop-compat module provides similar interface OperationMetrics that contains metrics common to most operations. As both hbase-procedure and hbase-hadoop-compat are lower level modules used by hbase-server (this) module and there is no dependency between them, this method does the required conversion.

incrementSnapshotObserverTime

public void incrementSnapshotObserverTime(long executionTime)

Sets the execution time of a period of the SnapshotQuotaObserverChore.

incrementSnapshotSizeComputationTime

public void incrementSnapshotSizeComputationTime(long executionTime)

Sets the execution time to compute the size of a single snapshot.

incrementSnapshotFetchTime

public void incrementSnapshotFetchTime(long executionTime)

Sets the execution time to fetch the mapping of snapshots to originating table.