Package org.apache.hadoop.hbase.regionserver.wal

Interface MetricsWALSource

All Superinterfaces:

BaseSource

All Known Implementing Classes:

MetricsWALSourceImpl

@Private
public interface MetricsWALSource
extends BaseSource

Interface of the source that will export metrics about the region server's WAL.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	APPEND_COUNT
static final String	APPEND_COUNT_DESC
static final String	APPEND_SIZE
static final String	APPEND_SIZE_DESC
static final String	APPEND_TIME
static final String	APPEND_TIME_DESC
static final String	ERROR_ROLL_REQUESTED
static final String	ERROR_ROLL_REQUESTED_DESC
static final String	LOW_REPLICA_ROLL_REQUESTED
static final String	LOW_REPLICA_ROLL_REQUESTED_DESC
static final String	METRICS_CONTEXT	The name of the metrics context that metrics will be under.
static final String	METRICS_DESCRIPTION	Description
static final String	METRICS_JMX_CONTEXT	The name of the metrics context that metrics will be under in jmx
static final String	METRICS_NAME	The name of the metrics
static final String	ROLL_REQUESTED
static final String	ROLL_REQUESTED_DESC
static final String	SIZE_ROLL_REQUESTED
static final String	SIZE_ROLL_REQUESTED_DESC
static final String	SLOW_APPEND_COUNT
static final String	SLOW_APPEND_COUNT_DESC
static final String	SLOW_SYNC_ROLL_REQUESTED
static final String	SLOW_SYNC_ROLL_REQUESTED_DESC
static final String	SUCCESSFUL_LOG_ROLLS
static final String	SUCCESSFUL_LOG_ROLLS_DESC
static final String	SYNC_TIME
static final String	SYNC_TIME_DESC
static final String	WRITTEN_BYTES
static final String	WRITTEN_BYTES_DESC

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

HBASE_METRICS_SYSTEM_NAME

Method Summary

Modifier and Type	Method	Description
long	getSlowAppendCount()
long	getSuccessfulLogRolls()
void	incrementAppendCount(TableName tableName)	Increment the count of wal appends
void	incrementAppendSize(TableName tableName, long size)	Add the append size.
void	incrementAppendTime(long time)	Add the time it took to append.
void	incrementErrorLogRoll()
void	incrementLogRollRequested()
void	incrementLowReplicationLogRoll()
void	incrementSizeLogRoll()
void	incrementSlowAppendCount()	Increment the number of appends that were slow
void	incrementSlowSyncLogRoll()
void	incrementSuccessfulLogRolls()	Increment the number of successful log roll requests.
void	incrementSyncTime(long time)	Add the time it took to sync the wal.
void	incrementWrittenBytes(long val)

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

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

Field Details

METRICS_NAME

static final String METRICS_NAME

The name of the metrics

See Also:

• Constant Field Values

METRICS_CONTEXT

static final String METRICS_CONTEXT

The name of the metrics context that metrics will be under.

See Also:

• Constant Field Values

METRICS_DESCRIPTION

static final String METRICS_DESCRIPTION

Description

See Also:

• Constant Field Values

METRICS_JMX_CONTEXT

static final String METRICS_JMX_CONTEXT

The name of the metrics context that metrics will be under in jmx

See Also:

• Constant Field Values

APPEND_TIME

static final String APPEND_TIME

See Also:

• Constant Field Values

APPEND_TIME_DESC

static final String APPEND_TIME_DESC

See Also:

• Constant Field Values

APPEND_COUNT

static final String APPEND_COUNT

See Also:

• Constant Field Values

APPEND_COUNT_DESC

static final String APPEND_COUNT_DESC

See Also:

• Constant Field Values

APPEND_SIZE

static final String APPEND_SIZE

See Also:

• Constant Field Values

APPEND_SIZE_DESC

static final String APPEND_SIZE_DESC

See Also:

• Constant Field Values

SLOW_APPEND_COUNT

static final String SLOW_APPEND_COUNT

See Also:

• Constant Field Values

SLOW_APPEND_COUNT_DESC

static final String SLOW_APPEND_COUNT_DESC

See Also:

• Constant Field Values

SYNC_TIME

static final String SYNC_TIME

See Also:

• Constant Field Values

SYNC_TIME_DESC

static final String SYNC_TIME_DESC

See Also:

• Constant Field Values

ROLL_REQUESTED

static final String ROLL_REQUESTED

See Also:

• Constant Field Values

ROLL_REQUESTED_DESC

static final String ROLL_REQUESTED_DESC

See Also:

• Constant Field Values

ERROR_ROLL_REQUESTED

static final String ERROR_ROLL_REQUESTED

See Also:

• Constant Field Values

ERROR_ROLL_REQUESTED_DESC

static final String ERROR_ROLL_REQUESTED_DESC

See Also:

• Constant Field Values

LOW_REPLICA_ROLL_REQUESTED

static final String LOW_REPLICA_ROLL_REQUESTED

See Also:

• Constant Field Values

LOW_REPLICA_ROLL_REQUESTED_DESC

static final String LOW_REPLICA_ROLL_REQUESTED_DESC

See Also:

• Constant Field Values

SLOW_SYNC_ROLL_REQUESTED

static final String SLOW_SYNC_ROLL_REQUESTED

See Also:

• Constant Field Values

SLOW_SYNC_ROLL_REQUESTED_DESC

static final String SLOW_SYNC_ROLL_REQUESTED_DESC

See Also:

• Constant Field Values

SIZE_ROLL_REQUESTED

static final String SIZE_ROLL_REQUESTED

See Also:

• Constant Field Values

SIZE_ROLL_REQUESTED_DESC

static final String SIZE_ROLL_REQUESTED_DESC

See Also:

• Constant Field Values

WRITTEN_BYTES

static final String WRITTEN_BYTES

See Also:

• Constant Field Values

WRITTEN_BYTES_DESC

static final String WRITTEN_BYTES_DESC

See Also:

• Constant Field Values

SUCCESSFUL_LOG_ROLLS

static final String SUCCESSFUL_LOG_ROLLS

See Also:

• Constant Field Values

SUCCESSFUL_LOG_ROLLS_DESC

static final String SUCCESSFUL_LOG_ROLLS_DESC

See Also:

• Constant Field Values

Method Details

incrementAppendSize

void incrementAppendSize(TableName tableName,
 long size)

Add the append size.

incrementAppendTime

void incrementAppendTime(long time)

Add the time it took to append.

incrementAppendCount

void incrementAppendCount(TableName tableName)

Increment the count of wal appends

incrementSlowAppendCount

void incrementSlowAppendCount()

Increment the number of appends that were slow

incrementSyncTime

void incrementSyncTime(long time)

Add the time it took to sync the wal.

incrementLogRollRequested

void incrementLogRollRequested()

incrementErrorLogRoll

void incrementErrorLogRoll()

incrementLowReplicationLogRoll

void incrementLowReplicationLogRoll()

getSlowAppendCount

long getSlowAppendCount()

incrementSlowSyncLogRoll

void incrementSlowSyncLogRoll()

incrementSizeLogRoll

void incrementSizeLogRoll()

incrementWrittenBytes

void incrementWrittenBytes(long val)

incrementSuccessfulLogRolls

void incrementSuccessfulLogRolls()

Increment the number of successful log roll requests.

getSuccessfulLogRolls

long getSuccessfulLogRolls()