Package org.apache.ignite.internal.managers.discovery

Class ClusterMetricsImpl

java.lang.Object

org.apache.ignite.internal.managers.discovery.ClusterMetricsImpl

All Implemented Interfaces:

ClusterMetrics

public class ClusterMetricsImpl
extends Object
implements ClusterMetrics

Cluster metrics proxy.

Constructor Summary

Constructors

Constructor	Description
ClusterMetricsImpl(GridKernalContext ctx, long nodeStartTime)

Method Summary

Modifier and Type	Method	Description
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 CPU usage in [0, 1] range.
int	getCurrentDaemonThreadCount()	Returns the current number of live daemon threads.
double	getCurrentGcCpuLoad()	Returns average time spent in CG since the last update.
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.
long	getCurrentPmeDuration()	Gets execution duration for current partition map exchange in milliseconds.
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 JVM to use.
long	getHeapMemoryInitialized()	Returns the amount of heap memory in bytes that the JVM 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	getHeapMemoryTotal()	Returns the total amount of heap memory in bytes.
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	getLastDataVersion()	In-Memory Data Grid assigns incremental versions to all cache operations.
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 JVM started or peak was reset.
int	getMaximumWaitingJobs()	Gets maximum number of waiting jobs this node had.
long	getNodeStartTime()	Returns the start time of grid node in milliseconds.
long	getNonHeapMemoryCommitted()	Returns the amount of non-heap memory in bytes that is committed for the JVM to use.
long	getNonHeapMemoryInitialized()	Returns the amount of non-heap memory in bytes that the JVM 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	getNonHeapMemoryTotal()	Returns the total 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.
int	getOutboundMessagesQueueSize()	Gets outbound messages queue size.
long	getReceivedBytesCount()	Gets received bytes count.
int	getReceivedMessagesCount()	Gets received messages count.
long	getSentBytesCount()	Gets sent bytes count.
int	getSentMessagesCount()	Gets sent messages count.
long	getStartTime()	Returns the start time of the JVM in milliseconds.
long	getTotalBusyTime()	Gets total time this node spent executing jobs.
int	getTotalCancelledJobs()	Gets number of cancelled jobs since node startup.
int	getTotalCpus()	Returns the number of CPUs available to the Java Virtual Machine.
int	getTotalExecutedJobs()	Gets total number of jobs handled by the node since node startup.
int	getTotalExecutedTasks()	Gets total number of tasks handled by the node.
long	getTotalIdleTime()	Gets total time this node spent idling (not executing any jobs).
long	getTotalJobsExecutionTime()	Gets total time all finished jobs takes to execute on the node since node startup.
int	getTotalNodes()	Gets total number of nodes.
int	getTotalRejectedJobs()	Gets total number of jobs this node rejects during collision resolution operations since node startup.
long	getTotalStartedThreadCount()	Returns the total number of threads created and also started since the JVM started.
long	getUpTime()	Returns the uptime of the JVM in milliseconds.
GridJobMetrics	jobMetrics()	Job metrics

Methods inherited from class java.lang.Object

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

Constructor Detail

ClusterMetricsImpl

public ClusterMetricsImpl(GridKernalContext ctx,
                          long nodeStartTime)

Parameters:

ctx - Kernel context.

nodeStartTime - Node start time.

Method Detail

getLastUpdateTime

public long getLastUpdateTime()

Gets last update time of this node metrics.

Specified by:

getLastUpdateTime in interface ClusterMetrics

Returns:

Last update time.

getMaximumActiveJobs

public int getMaximumActiveJobs()

Gets maximum number of jobs that ever ran concurrently on this node. Note that this different from ClusterMetrics.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:

• IgniteConfiguration.getMetricsExpireTime()
• IgniteConfiguration.getMetricsHistorySize()

Specified by:

getMaximumActiveJobs in interface ClusterMetrics

Returns:

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

getCurrentActiveJobs

public int getCurrentActiveJobs()

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

Specified by:

getCurrentActiveJobs in interface ClusterMetrics

Returns:

Number of currently active jobs concurrently executing on the node.

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:

• IgniteConfiguration.getMetricsExpireTime()
• IgniteConfiguration.getMetricsHistorySize()

Specified by:

getAverageActiveJobs in interface ClusterMetrics

Returns:

Average number of 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:

• IgniteConfiguration.getMetricsExpireTime()
• IgniteConfiguration.getMetricsHistorySize()

Specified by:

getMaximumWaitingJobs in interface ClusterMetrics

Returns:

Maximum number of waiting jobs.

getCurrentWaitingJobs

public int getCurrentWaitingJobs()

Gets number of queued jobs currently waiting to be executed.

Specified by:

getCurrentWaitingJobs in interface ClusterMetrics

Returns:

Number of queued jobs currently waiting to be executed.

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:

• IgniteConfiguration.getMetricsExpireTime()
• IgniteConfiguration.getMetricsHistorySize()

Specified by:

getAverageWaitingJobs in interface ClusterMetrics

Returns:

Average number of 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:

• IgniteConfiguration.getMetricsExpireTime()
• IgniteConfiguration.getMetricsHistorySize()

Specified by:

getMaximumRejectedJobs in interface ClusterMetrics

Returns:

Maximum number of jobs rejected at once.

getCurrentRejectedJobs

public int getCurrentRejectedJobs()

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

Specified by:

getCurrentRejectedJobs in interface ClusterMetrics

Returns:

Number of jobs rejected after more recent collision resolution operation.

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:

• IgniteConfiguration.getMetricsExpireTime()
• IgniteConfiguration.getMetricsHistorySize()

Specified by:

getAverageRejectedJobs in interface ClusterMetrics

Returns:

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

getTotalRejectedJobs

public int getTotalRejectedJobs()

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

Note: Unlike most of other aggregation metrics this metric is not calculated over history but over the entire node life.

Specified by:

getTotalRejectedJobs in interface ClusterMetrics

Returns:

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

getMaximumCancelledJobs

public int getMaximumCancelledJobs()

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

Specified by:

getMaximumCancelledJobs in interface ClusterMetrics

Returns:

Maximum number of 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 up to the job itself to gracefully exit.

Specified by:

getCurrentCancelledJobs in interface ClusterMetrics

Returns:

Number of cancelled jobs that are still running.

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:

• IgniteConfiguration.getMetricsExpireTime()
• IgniteConfiguration.getMetricsHistorySize()

Specified by:

getAverageCancelledJobs in interface ClusterMetrics

Returns:

Average number of cancelled jobs.

getTotalCancelledJobs

public int getTotalCancelledJobs()

Gets number of cancelled jobs since node startup.

Note: Unlike most of other aggregation metrics this metric is not calculated over history but over the entire node life.

Specified by:

getTotalCancelledJobs in interface ClusterMetrics

Returns:

Total number of cancelled jobs since node startup.

getTotalExecutedJobs

public int getTotalExecutedJobs()

Gets total number of jobs handled by the node since node startup.

Note: Unlike most of other aggregation metrics this metric is not calculated over history but over the entire node life.

Specified by:

getTotalExecutedJobs in interface ClusterMetrics

Returns:

Total number of jobs handled by the node since node startup.

getTotalJobsExecutionTime

public long getTotalJobsExecutionTime()

Gets total time all finished jobs takes to execute on the node since node startup.

Note: Unlike most of other aggregation metrics this metric is not calculated over history but over the entire node life.

Specified by:

getTotalJobsExecutionTime in interface ClusterMetrics

Returns:

Total jobs execution time.

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:

• IgniteConfiguration.getMetricsExpireTime()
• IgniteConfiguration.getMetricsHistorySize()

Specified by:

getMaximumJobWaitTime in interface ClusterMetrics

Returns:

Maximum waiting time.

getCurrentJobWaitTime

public long getCurrentJobWaitTime()

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

Specified by:

getCurrentJobWaitTime in interface ClusterMetrics

Returns:

Current wait time of oldest job.

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:

• IgniteConfiguration.getMetricsExpireTime()
• IgniteConfiguration.getMetricsHistorySize()

Specified by:

getAverageJobWaitTime in interface ClusterMetrics

Returns:

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:

• IgniteConfiguration.getMetricsExpireTime()
• IgniteConfiguration.getMetricsHistorySize()

Specified by:

getMaximumJobExecuteTime in interface ClusterMetrics

Returns:

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

getCurrentJobExecuteTime

public long getCurrentJobExecuteTime()

Gets longest time a current job has been executing for.

Specified by:

getCurrentJobExecuteTime in interface ClusterMetrics

Returns:

Longest time a current job has been executing for.

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:

• IgniteConfiguration.getMetricsExpireTime()
• IgniteConfiguration.getMetricsHistorySize()

Specified by:

getAverageJobExecuteTime in interface ClusterMetrics

Returns:

Average job execution time.

getTotalExecutedTasks

public int getTotalExecutedTasks()

Gets total number of tasks 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:

• IgniteConfiguration.getMetricsExpireTime()
• IgniteConfiguration.getMetricsHistorySize()

Specified by:

getTotalExecutedTasks in interface ClusterMetrics

Returns:

Total number of jobs handled by the node.

getTotalBusyTime

public long getTotalBusyTime()

Gets total time this node spent executing jobs.

Specified by:

getTotalBusyTime in interface ClusterMetrics

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 ClusterMetrics

Returns:

Gets total time this node spent idling.

getCurrentIdleTime

public long getCurrentIdleTime()

Gets time this node spend idling since executing last job.

Specified by:

getCurrentIdleTime in interface ClusterMetrics

Returns:

Time this node spend idling since executing last job.

getBusyTimePercentage

public float getBusyTimePercentage()

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

Specified by:

getBusyTimePercentage in interface ClusterMetrics

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 ClusterMetrics

Returns:

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

getTotalCpus

public int getTotalCpus()

Returns the number of CPUs available to the Java Virtual Machine. This method is equivalent to the Runtime.availableProcessors() method.

Note that this value may change during successive invocations of the virtual machine.

Specified by:

getTotalCpus in interface ClusterMetrics

Returns:

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

getCurrentCpuLoad

public double getCurrentCpuLoad()

Returns the CPU usage in [0, 1] range. The exact way how this number is calculated depends on SPI implementation.

If the CPU usage 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.

Specified by:

getCurrentCpuLoad in interface ClusterMetrics

Returns:

The estimated CPU usage in [0, 1] range. 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:

• IgniteConfiguration.getMetricsExpireTime()
• IgniteConfiguration.getMetricsHistorySize()

Specified by:

getAverageCpuLoad in interface ClusterMetrics

Returns:

Average of CPU load value in [0, 1] range over all metrics kept in the history.

getCurrentGcCpuLoad

public double getCurrentGcCpuLoad()

Returns average time spent in CG since the last update.

Specified by:

getCurrentGcCpuLoad in interface ClusterMetrics

Returns:

Average time spent in CG since the last update.

getHeapMemoryInitialized

public long getHeapMemoryInitialized()

Returns the amount of heap memory in bytes that the JVM 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 ClusterMetrics

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 ClusterMetrics

Returns:

Amount of heap memory used.

getHeapMemoryCommitted

public long getHeapMemoryCommitted()

Returns the amount of heap memory in bytes that is committed for the JVM to use. This amount of memory is guaranteed for the JVM 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 ClusterMetrics

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 JVM 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 ClusterMetrics

Returns:

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

getHeapMemoryTotal

public long getHeapMemoryTotal()

Returns the total amount of heap memory in bytes. This method returns -1 if the total 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 JVM 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:

getHeapMemoryTotal in interface ClusterMetrics

Returns:

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

getNonHeapMemoryInitialized

public long getNonHeapMemoryInitialized()

Returns the amount of non-heap memory in bytes that the JVM 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 ClusterMetrics

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 ClusterMetrics

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 JVM to use. This amount of memory is guaranteed for the JVM 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 ClusterMetrics

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 JVM 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 ClusterMetrics

Returns:

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

getNonHeapMemoryTotal

public long getNonHeapMemoryTotal()

Returns the total amount of non-heap memory in bytes that can be used for memory management. This method returns -1 if the total 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 JVM 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:

getNonHeapMemoryTotal in interface ClusterMetrics

Returns:

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

getUpTime

public long getUpTime()

Returns the uptime of the JVM in milliseconds.

Specified by:

getUpTime in interface ClusterMetrics

Returns:

Uptime of the JVM in milliseconds.

getStartTime

public long getStartTime()

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

Specified by:

getStartTime in interface ClusterMetrics

Returns:

Start time of the JVM in milliseconds.

getNodeStartTime

public long getNodeStartTime()

Returns the start time of grid node in milliseconds. There can be several grid nodes started in one JVM, so JVM start time will be the same for all of them, but node start time will be different.

Specified by:

getNodeStartTime in interface ClusterMetrics

Returns:

Start time of the grid node 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 ClusterMetrics

Returns:

Current number of live threads.

getMaximumThreadCount

public int getMaximumThreadCount()

Returns the maximum live thread count since the JVM 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 ClusterMetrics

Returns:

The peak live thread count.

getTotalStartedThreadCount

public long getTotalStartedThreadCount()

Returns the total number of threads created and also started since the JVM 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 ClusterMetrics

Returns:

The total number of threads started.

getCurrentDaemonThreadCount

public int getCurrentDaemonThreadCount()

Returns the current number of live daemon threads.

Specified by:

getCurrentDaemonThreadCount in interface ClusterMetrics

Returns:

Current number of live daemon threads.

getLastDataVersion

public long getLastDataVersion()

In-Memory Data Grid assigns incremental versions to all cache operations. This method provides the latest data version on the node.

Specified by:

getLastDataVersion in interface ClusterMetrics

Returns:

Last data version.

getSentMessagesCount

public int getSentMessagesCount()

Gets sent messages count.

Specified by:

getSentMessagesCount in interface ClusterMetrics

Returns:

Sent messages count.

getSentBytesCount

public long getSentBytesCount()

Gets sent bytes count.

Specified by:

getSentBytesCount in interface ClusterMetrics

Returns:

Sent bytes count.

getReceivedMessagesCount

public int getReceivedMessagesCount()

Gets received messages count.

Specified by:

getReceivedMessagesCount in interface ClusterMetrics

Returns:

Received messages count.

getReceivedBytesCount

public long getReceivedBytesCount()

Gets received bytes count.

Specified by:

getReceivedBytesCount in interface ClusterMetrics

Returns:

Received bytes count.

getOutboundMessagesQueueSize

public int getOutboundMessagesQueueSize()

Gets outbound messages queue size.

Specified by:

getOutboundMessagesQueueSize in interface ClusterMetrics

Returns:

Outbound messages queue size.

getTotalNodes

public int getTotalNodes()

Gets total number of nodes.

Specified by:

getTotalNodes in interface ClusterMetrics

Returns:

Total number of nodes.

getCurrentPmeDuration

public long getCurrentPmeDuration()

Gets execution duration for current partition map exchange in milliseconds.

Specified by:

getCurrentPmeDuration in interface ClusterMetrics

Returns:

Gets execution duration for current partition map exchange in milliseconds. 0 if there is no running PME.

jobMetrics

public GridJobMetrics jobMetrics()

Job metrics