org.apache.accumulo.master.metrics

Class ReplicationMetrics

java.lang.Object

org.apache.accumulo.server.metrics.AbstractMetricsImpl

org.apache.accumulo.master.metrics.ReplicationMetrics

All Implemented Interfaces:

ReplicationMetricsMBean, Metrics

public class ReplicationMetrics
extends AbstractMetricsImpl
implements ReplicationMetricsMBean

JMX bindings to expose 'high-level' metrics about Replication

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.accumulo.server.metrics.AbstractMetricsImpl

AbstractMetricsImpl.Metric

Field Summary

Fields inherited from interface org.apache.accumulo.server.metrics.Metrics

MASTER_NAME, PREFIX, THRIFT_NAME, TSERVER_NAME

Method Summary

Methods

Modifier and Type	Method and Description
int	getMaxReplicationThreads() The total number of threads available to replicate data to peers.
protected String	getMetricsPrefix()
int	getNumConfiguredPeers() Peers are systems which data can be replicated to.
int	getNumFilesPendingReplication() A system may have multiple Replication targets, each of which have a queue of files to be replicated.
protected ObjectName	getObjectName()

Methods inherited from class org.apache.accumulo.server.metrics.AbstractMetricsImpl

add, createMetric, finalize, getMetricAvg, getMetricCount, getMetricMax, getMetricMin, isEnabled, register, register

Methods inherited from class java.lang.Object

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

Method Detail

getNumFilesPendingReplication

public int getNumFilesPendingReplication()

Description copied from interface: ReplicationMetricsMBean

A system may have multiple Replication targets, each of which have a queue of files to be replicated. This returns the sum across all targets, not de-duplicating files.

Specified by:

getNumFilesPendingReplication in interface ReplicationMetricsMBean

Returns:

The number of files pending replication across all targets

getNumConfiguredPeers

public int getNumConfiguredPeers()

Description copied from interface: ReplicationMetricsMBean

Peers are systems which data can be replicated to. This is the number of peers that are defined, but this is not necessarily the number of peers which are actively being replicated to.

Specified by:

getNumConfiguredPeers in interface ReplicationMetricsMBean

Returns:

The number of peers/targets which are defined for data to be replicated to.

getMaxReplicationThreads

public int getMaxReplicationThreads()

Description copied from interface: ReplicationMetricsMBean

The total number of threads available to replicate data to peers. Each TabletServer has a number of threads devoted to replication, so this value is affected by the number of currently active TabletServers.

Specified by:

getMaxReplicationThreads in interface ReplicationMetricsMBean

Returns:

The number of threads available to replicate data across the instance

getObjectName

protected ObjectName getObjectName()

Specified by:

getObjectName in class AbstractMetricsImpl

getMetricsPrefix

protected String getMetricsPrefix()

Specified by:

getMetricsPrefix in class AbstractMetricsImpl