com.hazelcast.config

Class CRDTReplicationConfig

java.lang.Object

com.hazelcast.config.CRDTReplicationConfig

public class CRDTReplicationConfig
extends Object

Configures the replication mechanism for all CRDT implementations. The CRDT states are replicated in rounds (the period is configurable) and in each round the state is replicated up to the configured number of members.

Field Summary

Fields

Modifier and Type	Field and Description
static int	DEFAULT_MAX_CONCURRENT_REPLICATION_TARGETS The default maximum number of members to which the CRDT states are replicated in a single round.
static int	DEFAULT_REPLICATION_PERIOD_MILLIS The default period between two CRDT replication rounds.

Constructor Summary

Constructors

Constructor and Description
CRDTReplicationConfig()

Method Summary

Modifier and Type	Method and Description
int	getMaxConcurrentReplicationTargets() Returns the maximum number of target members that we replicate the CRDT states to in one period.
int	getReplicationPeriodMillis() Returns the period between two replications of CRDT states in milliseconds.
CRDTReplicationConfig	setMaxConcurrentReplicationTargets(int maxConcurrentReplicationTargets) Sets the maximum number of target members that we replicate the CRDT states to in one period.
CRDTReplicationConfig	setReplicationPeriodMillis(int replicationPeriodMillis) Sets the period between two replications of CRDT states in milliseconds.

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_REPLICATION_PERIOD_MILLIS

public static final int DEFAULT_REPLICATION_PERIOD_MILLIS

The default period between two CRDT replication rounds.

See Also:

Constant Field Values

DEFAULT_MAX_CONCURRENT_REPLICATION_TARGETS

public static final int DEFAULT_MAX_CONCURRENT_REPLICATION_TARGETS

The default maximum number of members to which the CRDT states are replicated in a single round.

See Also:

Constant Field Values

Constructor Detail

CRDTReplicationConfig

public CRDTReplicationConfig()

Method Detail

getReplicationPeriodMillis

public int getReplicationPeriodMillis()

Returns the period between two replications of CRDT states in milliseconds.

setReplicationPeriodMillis

public CRDTReplicationConfig setReplicationPeriodMillis(int replicationPeriodMillis)

Sets the period between two replications of CRDT states in milliseconds. A lower value will increase the speed at which changes are disseminated to other cluster members at the expense of burst-like behaviour - less updates will be batched together in one replication message and one update to a CRDT may cause a sudden burst of replication messages in a short time interval. The value must be a positive non-null integer.

Parameters:

replicationPeriodMillis - the replication period

Returns:

this config

getMaxConcurrentReplicationTargets

public int getMaxConcurrentReplicationTargets()

Returns the maximum number of target members that we replicate the CRDT states to in one period.

setMaxConcurrentReplicationTargets

public CRDTReplicationConfig setMaxConcurrentReplicationTargets(int maxConcurrentReplicationTargets)

Sets the maximum number of target members that we replicate the CRDT states to in one period. A higher count will lead to states being disseminated more rapidly at the expense of burst-like behaviour - one update to a CRDT will lead to a sudden burst in the number of replication messages in a short time interval.

Parameters:

maxConcurrentReplicationTargets - the maximum number of replication targets in a replication period

Returns:

this config