org.gridgain.grid.spi.discovery
Class GridDiscoveryMetricsAdapter

java.lang.Object
  org.gridgain.grid.spi.discovery.GridDiscoveryMetricsAdapter

All Implemented Interfaces:

Externalizable, Serializable, GridNodeMetrics

public class GridDiscoveryMetricsAdapter
extends Object
implements GridNodeMetrics, Externalizable

Adapter for GridLocalMetrics interface.



See Also:

Documentation
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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

See Also:

Serialized Form

Constructor Summary

GridDiscoveryMetricsAdapter()

Method Summary

boolean	equals(Object obj)
int	getAvailableProcessors() Returns the number of processors available to the Java virtual machine.
float	getAverageActiveJobs() Gets average number of active jobs concurrently executing on the node.
float	getAverageCancelledJobs() Gets average number of cancelled jobs this node ever had running concurrently.
double	getAverageCpuLoad() Gets average of CPU load values over all metrics kept in the history.
double	getAverageJobExecuteTime() Gets average time a job takes to execute on the node.
double	getAverageJobWaitTime() Gets average time jobs spend waiting in the queue to be executed.
float	getAverageRejectedJobs() Gets average number of jobs this node rejects during collision resolution operations.
float	getAverageWaitingJobs() Gets average number of waiting jobs this node had queued.
float	getBusyTimePercentage() Gets percentage of time this node is busy executing jobs vs. idling.
int	getCurrentActiveJobs() Gets number of currently active jobs concurrently executing on the node.
int	getCurrentCancelledJobs() Gets number of cancelled jobs that are still running.
double	getCurrentCpuLoad() Returns the system load average for the last minute.
int	getCurrentDaemonThreadCount() Returns the current number of live daemon threads.
long	getCurrentIdleTime() Gets time this node spend idling since executing last job.
long	getCurrentJobExecuteTime() Gets longest time a current job has been executing for.
long	getCurrentJobWaitTime() Gets current time an oldest jobs has spent waiting to be executed.
int	getCurrentRejectedJobs() Gets number of jobs rejected after more recent collision resolution operation.
int	getCurrentThreadCount() Returns the current number of live threads including both daemon and non-daemon threads.
int	getCurrentWaitingJobs() Gets number of queued jobs currently waiting to be executed.
long	getHeapMemoryCommitted() Returns the amount of heap memory in bytes that is committed for the Java virtual machine to use.
long	getHeapMemoryInitialized() Returns the amount of heap memory in bytes that the Java virtual machine initially requests from the operating system for memory management.
long	getHeapMemoryMaximum() Returns the maximum amount of heap memory in bytes that can be used for memory management.
long	getHeapMemoryUsed() Returns the current heap size that is used for object allocation.
float	getIdleTimePercentage() Gets percentage of time this node is idling vs. executing jobs.
long	getLastUpdateTime() Gets last update time of this node metrics.
int	getMaximumActiveJobs() Gets maximum number of jobs that ever ran concurrently on this node.
int	getMaximumCancelledJobs() Gets maximum number of cancelled jobs this node ever had running concurrently.
long	getMaximumJobExecuteTime() Gets time it took to execute the longest job on the node.
long	getMaximumJobWaitTime() Gets maximum time a job ever spent waiting in a queue to be executed.
int	getMaximumRejectedJobs() Gets maximum number of jobs rejected at once during a single collision resolution operation.
int	getMaximumThreadCount() Returns the maximum live thread count since the Java virtual machine started or peak was reset.
int	getMaximumWaitingJobs() Gets maximum number of waiting jobs this node had.
long	getNonHeapMemoryCommitted() Returns the amount of non-heap memory in bytes that is committed for the Java virtual machine to use.
long	getNonHeapMemoryInitialized() Returns the amount of non-heap memory in bytes that the Java virtual machine initially requests from the operating system for memory management.
long	getNonHeapMemoryMaximum() Returns the maximum amount of non-heap memory in bytes that can be used for memory management.
long	getNonHeapMemoryUsed() Returns the current non-heap memory size that is used by Java VM.
long	getStartTime() Returns the start time of the Java virtual machine in milliseconds.
long	getTotalBusyTime() Gets total time this node spent executing jobs.
int	getTotalCancelledJobs() Gets total number of cancelled jobs.
int	getTotalExecutedJobs() Gets total number of jobs handled by the node.
long	getTotalIdleTime() Gets total time this node spent idling (not executing any jobs).
int	getTotalRejectedJobs() Gets total number of jobs this node rejects during collision resolution operations.
long	getTotalStartedThreadCount() Returns the total number of threads created and also started since the Java virtual machine started.
long	getUpTime() Returns the uptime of the Java virtual machine in milliseconds.
int	hashCode()
void	readExternal(ObjectInput in)
void	setAvailableProcessors(int availProcs) Sets available processors.
void	setAverageActiveJobs(float avgActiveJobs) Sets average active jobs.
void	setAverageCancelledJobs(float avgCancelledJobs) Sets average cancelled jobs.
void	setAverageCpuLoad(double avgLoad) Sets CPU load average over the metrics history.
void	setAverageJobExecuteTime(double avgJobExecTime) Sets average job execution time.
void	setAverageJobWaitTime(double avgJobWaitTime) Sets average job wait time.
void	setAverageRejectedJobs(float avgRejectedJobs)
void	setAverageWaitingJobs(float avgWaitingJobs) Sets average waiting jobs.
void	setCurrentActiveJobs(int curActiveJobs) Sets current active jobs.
void	setCurrentCancelledJobs(int curCancelledJobs) Sets current cancelled jobs.
void	setCurrentCpuLoad(double load) Sets current CPU load.
void	setCurrentDaemonThreadCount(int daemonThreadCnt) Sets daemon thread count.
void	setCurrentIdleTime(long curIdleTime) Sets time elapsed since execution of last job.
void	setCurrentJobExecuteTime(long curJobExecTime) Sets current job execute tiem.
void	setCurrentJobWaitTime(long curJobWaitTime) Sets current job wait time.
void	setCurrentRejectedJobs(int curRejectedJobs)
void	setCurrentThreadCount(int threadCnt) Sets thread count.
void	setCurrentWaitingJobs(int curWaitingJobs) Sets current waiting jobs.
void	setHeapMemoryCommitted(long heapCommitted) Sets committed heap memory.
void	setHeapMemoryInitialized(long heapInit) Sets heap initial memory.
void	setHeapMemoryMaximum(long heapMax) Sets maximum possible heap memory.
void	setHeapMemoryUsed(long heapUsed) Sets used heap memory.
void	setLastUpdateTime(long lastUpdateTime) Sets last update time.
void	setMaximumActiveJobs(int maxActiveJobs) Sets max active jobs.
void	setMaximumCancelledJobs(int maxCancelledJobs) Sets maximum cancelled jobs.
void	setMaximumJobExecuteTime(long maxJobExecTime) Sets maximum job execution time.
void	setMaximumJobWaitTime(long maxJobWaitTime) Sets max job wait time.
void	setMaximumRejectedJobs(int maxRejectedJobs)
void	setMaximumThreadCount(int peakThreadCnt) Sets peak thread count.
void	setMaximumWaitingJobs(int maxWaitingJobs) Sets maximum waiting jobs.
void	setNonHeapMemoryCommitted(long nonHeapCommitted) Sets committed non-heap memory.
void	setNonHeapMemoryInitialized(long nonHeapInit) Sets initial non-heap memory.
void	setNonHeapMemoryMaximum(long nonHeapMax) Sets maximum possible non-heap memory.
void	setNonHeapMemoryUsed(long nonHeapUsed) Sets used non-heap memory.
void	setStartTime(long startTime) Sets VM start time.
void	setTotalCancelledJobs(int totalCancelledJobs) Sets total cancelled jobs.
void	setTotalExecutedJobs(int totalExecutedJobs) Sets total active jobs.
void	setTotalIdleTime(long totalIdleTime) Set total node idle time.
void	setTotalRejectedJobs(int totalRejectedJobs)
void	setTotalStartedThreadCount(long startedThreadCnt) Sets started thread count.
void	setUpTime(long upTime) Sets VM up time.
String	toString()
void	writeExternal(ObjectOutput out)

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

GridDiscoveryMetricsAdapter

public GridDiscoveryMetricsAdapter()

Method Detail

getLastUpdateTime

public long getLastUpdateTime()

Gets last update time of this node metrics.

Specified by:

getLastUpdateTime in interface GridNodeMetrics

Returns:

Last update time.

setLastUpdateTime

public void setLastUpdateTime(long lastUpdateTime)

Sets last update time.

Parameters:

lastUpdateTime - Last update time.

getMaximumActiveJobs

public int getMaximumActiveJobs()

Gets maximum number of jobs that ever ran concurrently on this node. Note that this different from GridNodeMetrics.getTotalExecutedJobs() metric and only reflects maximum number of jobs that ran at the same time.

Note: all aggregated metrics like average, minimum, maximum, total, count are calculated over all the metrics kept in history. The history size is set via either one or both of configuration settings:

• GridConfiguration.getMetricsExpireTime()
• GridConfiguration.getMetricsHistorySize()

Specified by:

getMaximumActiveJobs in interface GridNodeMetrics

Returns:

Maximum number of jobs that ever ran concurrently on this node.

setMaximumActiveJobs

public void setMaximumActiveJobs(int maxActiveJobs)

Sets max active jobs.

Parameters:

maxActiveJobs - Max active jobs.

getCurrentActiveJobs

public int getCurrentActiveJobs()

Gets number of currently active jobs concurrently executing on the node.

Specified by:

getCurrentActiveJobs in interface GridNodeMetrics

Returns:

Number of currently active jobs concurrently executing on the node.

setCurrentActiveJobs

public void setCurrentActiveJobs(int curActiveJobs)

Sets current active jobs.

Parameters:

curActiveJobs - Current active jobs.

getAverageActiveJobs

public float getAverageActiveJobs()

Gets average number of active jobs concurrently executing on the node.

Note: all aggregated metrics like average, minimum, maximum, total, count are calculated over all the metrics kept in history. The history size is set via either one or both of configuration settings:

• GridConfiguration.getMetricsExpireTime()
• GridConfiguration.getMetricsHistorySize()

Specified by:

getAverageActiveJobs in interface GridNodeMetrics

Returns:

Average number of active jobs.

setAverageActiveJobs

public void setAverageActiveJobs(float avgActiveJobs)

Sets average active jobs.

Parameters:

avgActiveJobs - Average active jobs.

getMaximumWaitingJobs

public int getMaximumWaitingJobs()

Gets maximum number of waiting jobs this node had.

Note: all aggregated metrics like average, minimum, maximum, total, count are calculated over all the metrics kept in history. The history size is set via either one or both of configuration settings:

• GridConfiguration.getMetricsExpireTime()
• GridConfiguration.getMetricsHistorySize()

Specified by:

getMaximumWaitingJobs in interface GridNodeMetrics

Returns:

Maximum number of waiting jobs.

setMaximumWaitingJobs

public void setMaximumWaitingJobs(int maxWaitingJobs)

Sets maximum waiting jobs.

Parameters:

maxWaitingJobs - Maximum waiting jobs.

getCurrentWaitingJobs

public int getCurrentWaitingJobs()

Gets number of queued jobs currently waiting to be executed.

Specified by:

getCurrentWaitingJobs in interface GridNodeMetrics

Returns:

Number of queued jobs currently waiting to be executed.

setCurrentWaitingJobs

public void setCurrentWaitingJobs(int curWaitingJobs)

Sets current waiting jobs.

Parameters:

curWaitingJobs - Current waiting jobs.

getAverageWaitingJobs

public float getAverageWaitingJobs()

Gets average number of waiting jobs this node had queued.

Note: all aggregated metrics like average, minimum, maximum, total, count are calculated over all the metrics kept in history. The history size is set via either one or both of configuration settings:

• GridConfiguration.getMetricsExpireTime()
• GridConfiguration.getMetricsHistorySize()

Specified by:

getAverageWaitingJobs in interface GridNodeMetrics

Returns:

Average number of waiting jobs.

setAverageWaitingJobs

public void setAverageWaitingJobs(float avgWaitingJobs)

Sets average waiting jobs.

Parameters:

avgWaitingJobs - Average waiting jobs.

getMaximumRejectedJobs

public int getMaximumRejectedJobs()

Gets maximum number of jobs rejected at once during a single collision resolution operation.

Note: all aggregated metrics like average, minimum, maximum, total, count are calculated over all the metrics kept in history. The history size is set via either one or both of configuration settings:

• GridConfiguration.getMetricsExpireTime()
• GridConfiguration.getMetricsHistorySize()

Specified by:

getMaximumRejectedJobs in interface GridNodeMetrics

Returns:

Maximum number of jobs rejected at once.

setMaximumRejectedJobs

public void setMaximumRejectedJobs(int maxRejectedJobs)

Parameters:

maxRejectedJobs - Maximum number of jobs rejected during a single collision resolution event.

getCurrentRejectedJobs

public int getCurrentRejectedJobs()

Gets number of jobs rejected after more recent collision resolution operation.

Specified by:

getCurrentRejectedJobs in interface GridNodeMetrics

Returns:

Number of jobs rejected after more recent collision resolution operation.

setCurrentRejectedJobs

public void setCurrentRejectedJobs(int curRejectedJobs)

Parameters:

curRejectedJobs - Number of jobs rejected during most recent collision resolution.

getAverageRejectedJobs

public float getAverageRejectedJobs()

Gets average number of jobs this node rejects during collision resolution operations.

Note: all aggregated metrics like average, minimum, maximum, total, count are calculated over all the metrics kept in history. The history size is set via either one or both of grid configuration settings:

• GridConfiguration.getMetricsExpireTime()
• GridConfiguration.getMetricsHistorySize()

Specified by:

getAverageRejectedJobs in interface GridNodeMetrics

Returns:

Average number of jobs this node rejects during collision resolution operations.

setAverageRejectedJobs

public void setAverageRejectedJobs(float avgRejectedJobs)

Parameters:

avgRejectedJobs - Average number of jobs this node rejects.

getTotalRejectedJobs

public int getTotalRejectedJobs()

Gets total number of jobs this node rejects during collision resolution operations.

Note: all aggregated metrics like average, minimum, maximum, total, count are calculated over all the metrics kept in history. The history size is set via either one or both of configuration settings:

• GridConfiguration.getMetricsExpireTime()
• GridConfiguration.getMetricsHistorySize()

Specified by:

getTotalRejectedJobs in interface GridNodeMetrics

Returns:

Total number of jobs this node rejects during collision resolution operations.

setTotalRejectedJobs

public void setTotalRejectedJobs(int totalRejectedJobs)

Parameters:

totalRejectedJobs - Total number of jobs this node ever rejected.

getMaximumCancelledJobs

public int getMaximumCancelledJobs()

Gets maximum number of cancelled jobs this node ever had running concurrently.

Specified by:

getMaximumCancelledJobs in interface GridNodeMetrics

Returns:

Maximum number of cancelled jobs.

setMaximumCancelledJobs

public void setMaximumCancelledJobs(int maxCancelledJobs)

Sets maximum cancelled jobs.

Parameters:

maxCancelledJobs - Maximum cancelled jobs.

getCurrentCancelledJobs

public int getCurrentCancelledJobs()

Gets number of cancelled jobs that are still running. Just like regular java threads, jobs will receive cancel notification, but it's ultimately upto the job itself to gracefully exit.

Specified by:

getCurrentCancelledJobs in interface GridNodeMetrics

Returns:

Number of cancelled jobs that are still running.

setCurrentCancelledJobs

public void setCurrentCancelledJobs(int curCancelledJobs)

Sets current cancelled jobs.

Parameters:

curCancelledJobs - Current cancelled jobs.

getAverageCancelledJobs

public float getAverageCancelledJobs()

Gets average number of cancelled jobs this node ever had running concurrently.

Note: all aggregated metrics like average, minimum, maximum, total, count are calculated over all the metrics kept in history. The history size is set via either one or both of configuration settings:

• GridConfiguration.getMetricsExpireTime()
• GridConfiguration.getMetricsHistorySize()

Specified by:

getAverageCancelledJobs in interface GridNodeMetrics

Returns:

Average number of cancelled jobs.

setAverageCancelledJobs

public void setAverageCancelledJobs(float avgCancelledJobs)

Sets average cancelled jobs.

Parameters:

avgCancelledJobs - Average cancelled jobs.

getTotalExecutedJobs

public int getTotalExecutedJobs()

Gets total number of jobs handled by the node.

Note: all aggregated metrics like average, minimum, maximum, total, count are calculated over all the metrics kept in history. The history size is set via either one or both of configuration settings:

• GridConfiguration.getMetricsExpireTime()
• GridConfiguration.getMetricsHistorySize()

Specified by:

getTotalExecutedJobs in interface GridNodeMetrics

Returns:

Total number of jobs handled by the node.

setTotalExecutedJobs

public void setTotalExecutedJobs(int totalExecutedJobs)

Sets total active jobs.

Parameters:

totalExecutedJobs - Total active jobs.

getTotalCancelledJobs

public int getTotalCancelledJobs()

Gets total number of cancelled jobs.

Note: all aggregated metrics like average, minimum, maximum, total, count are calculated over all the metrics kept in history. The history size is set via either one or both of configuration settings:

• GridConfiguration.getMetricsExpireTime()
• GridConfiguration.getMetricsHistorySize()

Specified by:

getTotalCancelledJobs in interface GridNodeMetrics

Returns:

Total number of cancelled jobs since node startup.

setTotalCancelledJobs

public void setTotalCancelledJobs(int totalCancelledJobs)

Sets total cancelled jobs.

Parameters:

totalCancelledJobs - Total cancelled jobs.

getMaximumJobWaitTime

public long getMaximumJobWaitTime()

Gets maximum time a job ever spent waiting in a queue to be executed.

Note: all aggregated metrics like average, minimum, maximum, total, count are calculated over all the metrics kept in history. The history size is set via either one or both of configuration settings:

• GridConfiguration.getMetricsExpireTime()
• GridConfiguration.getMetricsHistorySize()

Specified by:

getMaximumJobWaitTime in interface GridNodeMetrics

Returns:

Maximum waiting time.

setMaximumJobWaitTime

public void setMaximumJobWaitTime(long maxJobWaitTime)

Sets max job wait time.

Parameters:

maxJobWaitTime - Max job wait time.

getCurrentJobWaitTime

public long getCurrentJobWaitTime()

Gets current time an oldest jobs has spent waiting to be executed.

Specified by:

getCurrentJobWaitTime in interface GridNodeMetrics

Returns:

Current wait time of oldest job.

setCurrentJobWaitTime

public void setCurrentJobWaitTime(long curJobWaitTime)

Sets current job wait time.

Parameters:

curJobWaitTime - Current job wait time.

getAverageJobWaitTime

public double getAverageJobWaitTime()

Gets average time jobs spend waiting in the queue to be executed.

Note: all aggregated metrics like average, minimum, maximum, total, count are calculated over all the metrics kept in history. The history size is set via either one or both of configuration settings:

• GridConfiguration.getMetricsExpireTime()
• GridConfiguration.getMetricsHistorySize()

Specified by:

getAverageJobWaitTime in interface GridNodeMetrics

Returns:

Average job wait time.

setAverageJobWaitTime

public void setAverageJobWaitTime(double avgJobWaitTime)

Sets average job wait time.

Parameters:

avgJobWaitTime - Average job wait time.

getMaximumJobExecuteTime

public long getMaximumJobExecuteTime()

Gets time it took to execute the longest job on the node.

Note: all aggregated metrics like average, minimum, maximum, total, count are calculated over all the metrics kept in history. The history size is set via either one or both of configuration settings:

• GridConfiguration.getMetricsExpireTime()
• GridConfiguration.getMetricsHistorySize()

Specified by:

getMaximumJobExecuteTime in interface GridNodeMetrics

Returns:

Time it took to execute the longest job on the node.

setMaximumJobExecuteTime

public void setMaximumJobExecuteTime(long maxJobExecTime)

Sets maximum job execution time.

Parameters:

maxJobExecTime - Maximum job execution time.

getCurrentJobExecuteTime

public long getCurrentJobExecuteTime()

Gets longest time a current job has been executing for.

Specified by:

getCurrentJobExecuteTime in interface GridNodeMetrics

Returns:

Longest time a current job has been executing for.

setCurrentJobExecuteTime

public void setCurrentJobExecuteTime(long curJobExecTime)

Sets current job execute tiem.

Parameters:

curJobExecTime - Current job execute time.

getAverageJobExecuteTime

public double getAverageJobExecuteTime()

Gets average time a job takes to execute on the node.

Note: all aggregated metrics like average, minimum, maximum, total, count are calculated over all the metrics kept in history. The history size is set via either one or both of configuration settings:

• GridConfiguration.getMetricsExpireTime()
• GridConfiguration.getMetricsHistorySize()

Specified by:

getAverageJobExecuteTime in interface GridNodeMetrics

Returns:

Average job execution time.

setAverageJobExecuteTime

public void setAverageJobExecuteTime(double avgJobExecTime)

Sets average job execution time.

Parameters:

avgJobExecTime - Average job execution time.

getTotalBusyTime

public long getTotalBusyTime()

Gets total time this node spent executing jobs.

Specified by:

getTotalBusyTime in interface GridNodeMetrics

Returns:

Total time this node spent executing jobs.

getTotalIdleTime

public long getTotalIdleTime()

Gets total time this node spent idling (not executing any jobs).

Specified by:

getTotalIdleTime in interface GridNodeMetrics

Returns:

Gets total time this node spent idling.

setTotalIdleTime

public void setTotalIdleTime(long totalIdleTime)

Set total node idle time.

Parameters:

totalIdleTime - Total node idle time.

getCurrentIdleTime

public long getCurrentIdleTime()

Gets time this node spend idling since executing last job.

Specified by:

getCurrentIdleTime in interface GridNodeMetrics

Returns:

Time this node spend idling since executing last job.

setCurrentIdleTime

public void setCurrentIdleTime(long curIdleTime)

Sets time elapsed since execution of last job.

Parameters:

curIdleTime - Time elapsed since execution of last job.

getBusyTimePercentage

public float getBusyTimePercentage()

Gets percentage of time this node is busy executing jobs vs. idling.

Specified by:

getBusyTimePercentage in interface GridNodeMetrics

Returns:

Percentage of time this node is busy (value is less than or equal to 1 and greater than or equal to 0)

getIdleTimePercentage

public float getIdleTimePercentage()

Gets percentage of time this node is idling vs. executing jobs.

Specified by:

getIdleTimePercentage in interface GridNodeMetrics

Returns:

Percentage of time this node is idle (value is less than or equal to 1 and greater than or equal to 0)

getAvailableProcessors

public int getAvailableProcessors()

Returns the number of processors available to the Java virtual machine. This method is equivalent to the Runtime.availableProcessors() method.

This value may change during a particular invocation of the virtual machine.

Specified by:

getAvailableProcessors in interface GridNodeMetrics

Returns:

The number of processors available to the virtual machine; never smaller than one.

getCurrentCpuLoad

public double getCurrentCpuLoad()

Returns the system load average for the last minute. The system load average is the sum of the number of runnable entities queued to the available processors and the number of runnable entities running on the available processors averaged over a period of time. The way in which the load average is calculated is operating system specific but is typically a damped time-dependent average.

If the load average is not available, a negative value is returned.

This method is designed to provide a hint about the system load and may be queried frequently. The load average may be unavailable on some platform where it is expensive to implement this method.

If you are running JDK 1.6 or above, then this method is equivalent to OperatingSystemMXBean.getSystemLoadAverage() method. Otherwise, for JDK 1.5 Hyperic CIGAR monitoring will be used. Note, however, that JDK 1.6 does not provide load average on some operating system (including Windows Vista) and in many cases provides wrong values. In such cases Hyperic Sigar should be used (which is default configuration) to provide proper system load average value.

Note that Hyperic CIGAR is licensed under GPL. If this license is not suitable for your business, remove hyperic libs from your classpath. In case if this method will not detect JDK 1.6 and will not find CIGAR libraries in the classpath, -1 will be returned.

Specified by:

getCurrentCpuLoad in interface GridNodeMetrics

Returns:

The system load average; or a negative value if not available.

getAverageCpuLoad

public double getAverageCpuLoad()

Gets average of CPU load values over all metrics kept in the history.

Note: all aggregated metrics like average, minimum, maximum, total, count are calculated over all the metrics kept in history. The history size is set via either one or both of configuration settings:

• GridConfiguration.getMetricsExpireTime()
• GridConfiguration.getMetricsHistorySize()

Specified by:

getAverageCpuLoad in interface GridNodeMetrics

Returns:

Average of CPU load values over all metrics kept in the history.

getHeapMemoryInitialized

public long getHeapMemoryInitialized()

Returns the amount of heap memory in bytes that the Java virtual machine initially requests from the operating system for memory management. This method returns -1 if the initial memory size is undefined.

This value represents a setting of the heap memory for Java VM and is not a sum of all initial heap values for all memory pools.

Note: this is not an aggregated metric and it's calculated from the time of the node's startup.

Specified by:

getHeapMemoryInitialized in interface GridNodeMetrics

Returns:

The initial size of memory in bytes; -1 if undefined.

getHeapMemoryUsed

public long getHeapMemoryUsed()

Returns the current heap size that is used for object allocation. The heap consists of one or more memory pools. This value is the sum of used heap memory values of all heap memory pools.

The amount of used memory in the returned is the amount of memory occupied by both live objects and garbage objects that have not been collected, if any.

Note: this is not an aggregated metric and it's calculated from the time of the node's startup.

Specified by:

getHeapMemoryUsed in interface GridNodeMetrics

Returns:

Amount of heap memory used.

getHeapMemoryCommitted

public long getHeapMemoryCommitted()

Returns the amount of heap memory in bytes that is committed for the Java virtual machine to use. This amount of memory is guaranteed for the Java virtual machine to use. The heap consists of one or more memory pools. This value is the sum of committed heap memory values of all heap memory pools.

Note: this is not an aggregated metric and it's calculated from the time of the node's startup.

Specified by:

getHeapMemoryCommitted in interface GridNodeMetrics

Returns:

The amount of committed memory in bytes.

getHeapMemoryMaximum

public long getHeapMemoryMaximum()

Returns the maximum amount of heap memory in bytes that can be used for memory management. This method returns -1 if the maximum memory size is undefined.

This amount of memory is not guaranteed to be available for memory management if it is greater than the amount of committed memory. The Java virtual machine may fail to allocate memory even if the amount of used memory does not exceed this maximum size.

This value represents a setting of the heap memory for Java VM and is not a sum of all initial heap values for all memory pools.

Note: this is not an aggregated metric and it's calculated from the time of the node's startup.

Specified by:

getHeapMemoryMaximum in interface GridNodeMetrics

Returns:

The maximum amount of memory in bytes; -1 if undefined.

getNonHeapMemoryInitialized

public long getNonHeapMemoryInitialized()

Returns the amount of non-heap memory in bytes that the Java virtual machine initially requests from the operating system for memory management. This method returns -1 if the initial memory size is undefined.

This value represents a setting of non-heap memory for Java VM and is not a sum of all initial heap values for all memory pools.

Note: this is not an aggregated metric and it's calculated from the time of the node's startup.

Specified by:

getNonHeapMemoryInitialized in interface GridNodeMetrics

Returns:

The initial size of memory in bytes; -1 if undefined.

getNonHeapMemoryUsed

public long getNonHeapMemoryUsed()

Returns the current non-heap memory size that is used by Java VM. The non-heap memory consists of one or more memory pools. This value is the sum of used non-heap memory values of all non-heap memory pools.

Note: this is not an aggregated metric and it's calculated from the time of the node's startup.

Note: this is not an aggregated metric and it's calculated from the time of the node's startup.

Specified by:

getNonHeapMemoryUsed in interface GridNodeMetrics

Returns:

Amount of none-heap memory used.

getNonHeapMemoryCommitted

public long getNonHeapMemoryCommitted()

Returns the amount of non-heap memory in bytes that is committed for the Java virtual machine to use. This amount of memory is guaranteed for the Java virtual machine to use. The non-heap memory consists of one or more memory pools. This value is the sum of committed non-heap memory values of all non-heap memory pools.

Note: this is not an aggregated metric and it's calculated from the time of the node's startup.

Specified by:

getNonHeapMemoryCommitted in interface GridNodeMetrics

Returns:

The amount of committed memory in bytes.

getNonHeapMemoryMaximum

public long getNonHeapMemoryMaximum()

Returns the maximum amount of non-heap memory in bytes that can be used for memory management. This method returns -1 if the maximum memory size is undefined.

This amount of memory is not guaranteed to be available for memory management if it is greater than the amount of committed memory. The Java virtual machine may fail to allocate memory even if the amount of used memory does not exceed this maximum size.

This value represents a setting of the non-heap memory for Java VM and is not a sum of all initial non-heap values for all memory pools.

Note: this is not an aggregated metric and it's calculated from the time of the node's startup.

Specified by:

getNonHeapMemoryMaximum in interface GridNodeMetrics

Returns:

The maximum amount of memory in bytes; -1 if undefined.

getUpTime

public long getUpTime()

Returns the uptime of the Java virtual machine in milliseconds.

Specified by:

getUpTime in interface GridNodeMetrics

Returns:

Uptime of the Java virtual machine in milliseconds.

getStartTime

public long getStartTime()

Returns the start time of the Java virtual machine in milliseconds. This method returns the approximate time when the Java virtual machine started.

Specified by:

getStartTime in interface GridNodeMetrics

Returns:

Start time of the Java virtual machine in milliseconds.

getCurrentThreadCount

public int getCurrentThreadCount()

Returns the current number of live threads including both daemon and non-daemon threads.

Specified by:

getCurrentThreadCount in interface GridNodeMetrics

Returns:

Current number of live threads.

getMaximumThreadCount

public int getMaximumThreadCount()

Returns the maximum live thread count since the Java virtual machine started or peak was reset.

Note: this is not an aggregated metric and it's calculated from the time of the node's startup.

Specified by:

getMaximumThreadCount in interface GridNodeMetrics

Returns:

The peak live thread count.

getTotalStartedThreadCount

public long getTotalStartedThreadCount()

Returns the total number of threads created and also started since the Java virtual machine started.

Note: this is not an aggregated metric and it's calculated from the time of the node's startup.

Specified by:

getTotalStartedThreadCount in interface GridNodeMetrics

Returns:

The total number of threads started.

getCurrentDaemonThreadCount

public int getCurrentDaemonThreadCount()

Returns the current number of live daemon threads.

Specified by:

getCurrentDaemonThreadCount in interface GridNodeMetrics

Returns:

Current number of live daemon threads.

setAvailableProcessors

public void setAvailableProcessors(int availProcs)

Sets available processors.

Parameters:

availProcs - Available processors.

setCurrentCpuLoad

public void setCurrentCpuLoad(double load)

Sets current CPU load.

Parameters:

load - Current CPU load.

setAverageCpuLoad

public void setAverageCpuLoad(double avgLoad)

Sets CPU load average over the metrics history.

Parameters:

avgLoad - CPU load average.

setHeapMemoryInitialized

public void setHeapMemoryInitialized(long heapInit)

Sets heap initial memory.

Parameters:

heapInit - Heap initial memory.

setHeapMemoryUsed

public void setHeapMemoryUsed(long heapUsed)

Sets used heap memory.

Parameters:

heapUsed - Used heap memory.

setHeapMemoryCommitted

public void setHeapMemoryCommitted(long heapCommitted)

Sets committed heap memory.

Parameters:

heapCommitted - Committed heap memory.

setHeapMemoryMaximum

public void setHeapMemoryMaximum(long heapMax)

Sets maximum possible heap memory.

Parameters:

heapMax - Maximum possible heap memory.

setNonHeapMemoryInitialized

public void setNonHeapMemoryInitialized(long nonHeapInit)

Sets initial non-heap memory.

Parameters:

nonHeapInit - Initial non-heap memory.

setNonHeapMemoryUsed

public void setNonHeapMemoryUsed(long nonHeapUsed)

Sets used non-heap memory.

Parameters:

nonHeapUsed - Used non-heap memory.

setNonHeapMemoryCommitted

public void setNonHeapMemoryCommitted(long nonHeapCommitted)

Sets committed non-heap memory.

Parameters:

nonHeapCommitted - Committed non-heap memory.

setNonHeapMemoryMaximum

public void setNonHeapMemoryMaximum(long nonHeapMax)

Sets maximum possible non-heap memory.

Parameters:

nonHeapMax - Maximum possible non-heap memory.

setUpTime

public void setUpTime(long upTime)

Sets VM up time.

Parameters:

upTime - VN up time.

setStartTime

public void setStartTime(long startTime)

Sets VM start time.

Parameters:

startTime - VM start time.

setCurrentThreadCount

public void setCurrentThreadCount(int threadCnt)

Sets thread count.

Parameters:

threadCnt - Thread count.

setMaximumThreadCount

public void setMaximumThreadCount(int peakThreadCnt)

Sets peak thread count.

Parameters:

peakThreadCnt - Peak thread count.

setTotalStartedThreadCount

public void setTotalStartedThreadCount(long startedThreadCnt)

Sets started thread count.

Parameters:

startedThreadCnt - Started thread count.

setCurrentDaemonThreadCount

public void setCurrentDaemonThreadCount(int daemonThreadCnt)

Sets daemon thread count.

Parameters:

daemonThreadCnt - Daemon thread count.

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Throws:

IOException

readExternal

public void readExternal(ObjectInput in)
                  throws IOException

Specified by:

readExternal in interface Externalizable

Throws:

IOException

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object