org.apache.hadoop.hbase.regionserver.wal

Interface MetricsWALSource

All Superinterfaces:

BaseSource

All Known Implementing Classes:

MetricsWALSourceImpl

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 and Description
static String	APPEND_COUNT
static String	APPEND_COUNT_DESC
static String	APPEND_SIZE
static String	APPEND_SIZE_DESC
static String	APPEND_TIME
static String	APPEND_TIME_DESC
static String	LOW_REPLICA_ROLL_REQUESTED
static String	LOW_REPLICA_ROLL_REQUESTED_DESC
static String	METRICS_CONTEXT The name of the metrics context that metrics will be under.
static String	METRICS_DESCRIPTION Description
static String	METRICS_JMX_CONTEXT The name of the metrics context that metrics will be under in jmx
static String	METRICS_NAME The name of the metrics
static String	ROLL_REQUESTED
static String	ROLL_REQUESTED_DESC
static String	SLOW_APPEND_COUNT
static String	SLOW_APPEND_COUNT_DESC
static String	SYNC_TIME
static String	SYNC_TIME_DESC

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

HBASE_METRICS_SYSTEM_NAME

Method Summary

Methods

Modifier and Type	Method and Description
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.

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

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

Field Detail

METRICS_NAME

static final String METRICS_NAME

The name of the metrics

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Constant Field Values

METRICS_CONTEXT

static final String METRICS_CONTEXT

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

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Constant Field Values

METRICS_DESCRIPTION

static final String METRICS_DESCRIPTION

Description

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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

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Constant Field Values

APPEND_TIME

static final String APPEND_TIME

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Constant Field Values

APPEND_TIME_DESC

static final String APPEND_TIME_DESC

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Constant Field Values

APPEND_COUNT

static final String APPEND_COUNT

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Constant Field Values

APPEND_COUNT_DESC

static final String APPEND_COUNT_DESC

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Constant Field Values

APPEND_SIZE

static final String APPEND_SIZE

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Constant Field Values

APPEND_SIZE_DESC

static final String APPEND_SIZE_DESC

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Constant Field Values

SLOW_APPEND_COUNT

static final String SLOW_APPEND_COUNT

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Constant Field Values

SLOW_APPEND_COUNT_DESC

static final String SLOW_APPEND_COUNT_DESC

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Constant Field Values

SYNC_TIME

static final String SYNC_TIME

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Constant Field Values

SYNC_TIME_DESC

static final String SYNC_TIME_DESC

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Constant Field Values

ROLL_REQUESTED

static final String ROLL_REQUESTED

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Constant Field Values

ROLL_REQUESTED_DESC

static final String ROLL_REQUESTED_DESC

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Constant Field Values

LOW_REPLICA_ROLL_REQUESTED

static final String LOW_REPLICA_ROLL_REQUESTED

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Constant Field Values

LOW_REPLICA_ROLL_REQUESTED_DESC

static final String LOW_REPLICA_ROLL_REQUESTED_DESC

See Also:

Constant Field Values

Method Detail

incrementAppendSize

void incrementAppendSize(long size)

Add the append size.

incrementAppendTime

void incrementAppendTime(long time)

Add the time it took to append.

incrementAppendCount

void incrementAppendCount()

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()

incrementLowReplicationLogRoll

void incrementLowReplicationLogRoll()