org.gridgain.grid.spi.collision.jobstealing
Interface GridJobStealingCollisionSpiMBean

All Superinterfaces:

GridSpiManagementMBean

All Known Implementing Classes:

GridJobStealingCollisionSpi

@GridMBeanDescription(value="MBean for job stealing based collision SPI.")
public interface GridJobStealingCollisionSpiMBean
extends GridSpiManagementMBean

Management MBean for job stealing based collision SPI.



See Also:

Documentation
Email Support
Online Forums
Issue Tracking

Author: 2005-2008 Copyright © GridGain Systems. All Rights Reserved. ver. 2.1.0

	Nikita Ivanov, GridGain Systems nivanov@gridgain.com
	Dmitriy Setrakyan, GridGain Systems dsetrakyan@gridgain.com
	Alexander Magdenko, GridGain Systems amagdenko@gridgain.com
	Boris Suchodoev, GridGain Systems bsuchodoev@gridgain.com
	Denis Kharlamov, GridGain Systems dkharlamov@gridgain.com
	close

Method Summary

int	getActiveJobsThreshold() Gets number of jobs that can be executed in parallel.
int	getCurrentActiveJobsCount() Gets current number of jobs that are being executed.
int	getCurrentJobsToStealCount() Gets current number of jobs to be stolen.
int	getCurrentWaitJobsCount() Gets current number of jobs that wait for the execution.
int	getMaximumStealingAttempts() Gets maximum number of attempts to steal job by another node.
long	getMessageExpireTime() Message expire time configuration parameter.
Map<String,? extends Serializable>	getStealingAttributes() Configuration parameter to enable stealing to/from only nodes that have these attributes set (see GridNode.getAttribute(String) and GridConfiguration.getUserAttributes() methods).
int	getTotalStolenJobsCount() Gets total number of stolen jobs.
int	getWaitJobsThreshold() Gets job count threshold at which this node will start stealing jobs from other nodes.
boolean	isStealingEnabled() Gets flag indicating whether this node should attempt to steal jobs from other nodes.

Methods inherited from interface org.gridgain.grid.spi.GridSpiManagementMBean

getAuthor, getGridGainHome, getLocalNodeId, getName, getStartTimestamp, getStartTimestampFormatted, getUpTime, getUpTimeFormatted, getVendorEmail, getVendorUrl, getVersion

Method Detail

getCurrentJobsToStealCount

@GridMBeanDescription(value="Number of jobs to be stolen.")
int getCurrentJobsToStealCount()

Gets current number of jobs to be stolen. This is outstanding requests number.

Returns:

Number of jobs to be stolen.

getCurrentWaitJobsCount

@GridMBeanDescription(value="Number of jobs that wait for execution.")
int getCurrentWaitJobsCount()

Gets current number of jobs that wait for the execution.

Returns:

Number of jobs that wait for execution.

getCurrentActiveJobsCount

@GridMBeanDescription(value="Number of active jobs.")
int getCurrentActiveJobsCount()

Gets current number of jobs that are being executed.

Returns:

Number of active jobs.

getTotalStolenJobsCount

@GridMBeanDescription(value="Number of stolen jobs.")
int getTotalStolenJobsCount()

Gets total number of stolen jobs.

Returns:

Number of stolen jobs.

getActiveJobsThreshold

@GridMBeanDescription(value="Number of jobs that can be executed in parallel.")
int getActiveJobsThreshold()

Gets number of jobs that can be executed in parallel.

Returns:

Number of jobs that can be executed in parallel.

getWaitJobsThreshold

@GridMBeanDescription(value="Job count threshold.")
int getWaitJobsThreshold()

Gets job count threshold at which this node will start stealing jobs from other nodes.

Returns:

Job count threshold.

getMessageExpireTime

@GridMBeanDescription(value="Message expire time.")
long getMessageExpireTime()

Message expire time configuration parameter. If no response is received from a busy node to a job stealing message, then implementation will assume that message never got there, or that remote node does not have this node included into topology of any of the jobs it has.

Returns:

Message expire time.

isStealingEnabled

@GridMBeanDescription(value="Flag indicating whether this node should attempt to steal jobs from other nodes.")
boolean isStealingEnabled()

Gets flag indicating whether this node should attempt to steal jobs from other nodes. If false, then this node will steal allow jobs to be stolen from it, but won't attempt to steal any jobs from other nodes.

Default value is true.

Returns:

Flag indicating whether this node should attempt to steal jobs from other nodes.

getMaximumStealingAttempts

@GridMBeanDescription(value="Maximum number of attempts to steal job by another node.")
int getMaximumStealingAttempts()

Gets maximum number of attempts to steal job by another node. If not specified, GridJobStealingCollisionSpi.DFLT_MAX_STEALING_ATTEMPTS value will be used.

Returns:

Maximum number of attempts to steal job by another node.

getStealingAttributes

@GridMBeanDescription(value="Node attributes to enable job stealing for.")
Map<String,? extends Serializable> getStealingAttributes()

Configuration parameter to enable stealing to/from only nodes that have these attributes set (see GridNode.getAttribute(String) and GridConfiguration.getUserAttributes() methods).

Returns:

Node attributes to enable job stealing for.