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com.tangosol.net.partition
Interface SimpleStrategyMBean

All Known Implementing Classes:

MirroringAssignmentStrategy, SimpleAssignmentStrategy

public interface SimpleStrategyMBean

Standard MBean interface that exposes management attributes and operations for a SimpleAssignmentStrategy used by a PartitionedService.

Each PartitionedService registers a single instance of this MBean bound to a JMX name of the form: "Coherence:type=PartitionAssignment,service={ServiceName},responsibility=DistributionCoordinator"

The MBean is attached to a single instance of PartitionAssignmentStrategy object, which exists on the member that is the distribution coordinator for the service. The associated MBean will not be explicitly unregistered, but its name will be rebound to a new MBean instance if and when a different service member becomes the distribution coordinator.

Since:

Coherence 12.1.2

Author:

op 2012.08.23

Method Summary

int	getBackupCount() Get the configured number of backups.
int	getCoordinatorId() Get the node id of the ownership distribution coordinator.
int	getFairShareBackup() Get the number of backup partitions per storage-enabled service member that this strategy will currently attempt to maintain.
int	getFairSharePrimary() Get the number of primary partitions per storage-enabled service member that this strategy will currently attempt to maintain.
java.lang.String	getHAStatus() The High Availability status for the service.
java.lang.String	getHATarget() The High Availability status that this strategy attempts to achieve.
java.util.Date	getLastAnalysisTime() Get the last time a partition distribution analysis was performed.
int	getPartitionCount() Get the configured number of partitions for the service.
int	getRemainingDistributionCount() Get the number of distributions (partition transfers) that remain to be completed before the service achieves the goals set by this strategy.
int	getServiceMachineCount() Get the number of machines that host storage-enabled nodes running this service.
int	getServiceNodeCount() Get the number of storage-enabled nodes running this service.
int	getServiceRackCount() Get the number of racks that host storage-enabled nodes running this service.
int	getServiceSiteCount() Get the number of sites that host storage-enabled nodes running this service.
java.lang.String	getStrategyName() Get name of the PartitionAssignmentStrategy in use.
java.lang.String	reportPendingDistributions(boolean fVerbose) Report partitions that storage-enabled members are waiting to receive or still need to send in order to achieve distribution goal set by the strategy.

Method Detail

getStrategyName

java.lang.String getStrategyName()

Get name of the PartitionAssignmentStrategy in use.

Returns:

partitioning strategy name

getLastAnalysisTime

java.util.Date getLastAnalysisTime()

Get the last time a partition distribution analysis was performed.

Returns:

the time of the last analysis

getCoordinatorId

int getCoordinatorId()

Get the node id of the ownership distribution coordinator.

Returns:

current distribution coordinator node id

getPartitionCount

int getPartitionCount()

Get the configured number of partitions for the service.

Returns:

the partition count

getBackupCount

int getBackupCount()

Get the configured number of backups.

Returns:

the backup count

getServiceNodeCount

int getServiceNodeCount()

Get the number of storage-enabled nodes running this service.

Returns:

the number of storage-enabled nodes

getServiceMachineCount

int getServiceMachineCount()

Get the number of machines that host storage-enabled nodes running this service.

Returns:

the number of machines with storage-enabled nodes

getServiceRackCount

int getServiceRackCount()

Get the number of racks that host storage-enabled nodes running this service.

Returns:

the number of racks with storage-enabled nodes

getServiceSiteCount

int getServiceSiteCount()

Get the number of sites that host storage-enabled nodes running this service.

Returns:

the number of sites with storage-enabled nodes

getHAStatus

java.lang.String getHAStatus()

The High Availability status for the service.

Returns:

one of the following values: ENDANGERED, NODE-SAFE, MACHINE-SAFE, RACK-SAFE, SITE-SAFE

getHATarget

java.lang.String getHATarget()

The High Availability status that this strategy attempts to achieve. Values are the same as for HAStatus attribute.

Returns:

the target High Availability status

getFairShareBackup

int getFairShareBackup()

Get the number of backup partitions per storage-enabled service member that this strategy will currently attempt to maintain.

Returns:

the number of backup partitions per storage-enabled member

getFairSharePrimary

int getFairSharePrimary()

Get the number of primary partitions per storage-enabled service member that this strategy will currently attempt to maintain.

Returns:

the number of primary partitions per storage-enabled member

getRemainingDistributionCount

int getRemainingDistributionCount()

Get the number of distributions (partition transfers) that remain to be completed before the service achieves the goals set by this strategy.

Returns:

the number of remaining partition transfers

reportPendingDistributions

java.lang.String reportPendingDistributions(boolean fVerbose)

Report partitions that storage-enabled members are waiting to receive or still need to send in order to achieve distribution goal set by the strategy.

Parameters:

fVerbose - if true, the report includes partition numbers for each pending transfer

Returns:

a description of pending distributions for the service

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