org.gridgain.grid.kernal.processors.streamer

Class GridStreamerMetricsHolder

java.lang.Object

org.gridgain.grid.kernal.processors.streamer.GridStreamerMetricsHolder

All Implemented Interfaces:

GridStreamerMetrics

public class GridStreamerMetricsHolder
extends Object
implements GridStreamerMetrics

Metrics holder. Note that for current active stages we use maximum active stages over last second.

Constructor Summary

Constructors

Constructor and Description
GridStreamerMetricsHolder(GridStreamerStageMetricsHolder[] stageMetrics, GridStreamerWindowMetricsHolder[] windowMetrics, int execSvcCap)

Method Summary

Methods

Modifier and Type	Method and Description
int	currentActiveSessions() Gets number of current active sessions.
int	executorServiceCapacity() Gets maximum number of threads in executor service.
int	failuresCount() Gets number of failures.
int	maximumActiveSessions() Gets maximum number of active sessions since last reset.
void	onPipelineCompleted(long execTime, int execNodes) Pipeline completed callback.
void	onQueryCompleted(long execTime, int execNodes) Query completed callback.
void	onSessionFailed() Session failed callback.
void	onSessionFinished() Session finished callback.
void	onSessionStarted() Session started callback.
void	onStageExecutionFinished(int idx, long execTime) Stage execution finished callback.
void	onStageExecutionStarted(int idx, long waitTime) Stage execution started callback.
void	onStageFailure(int idx) Stage failure callback.
void	onStageScheduled() Stage scheduled callback.
int	pipelineAverageExecutionNodes() Gets average number of unique nodes participated in pipeline execution.
long	pipelineAverageExecutionTime() Gets pipeline average execution time, i.e.
int	pipelineMaximumExecutionNodes() Gets maximum number of unique nodes participated in pipeline execution.
long	pipelineMaximumExecutionTime() Gets pipeline maximum execution time, i.e.
int	pipelineMinimumExecutionNodes() Gets minimum number of unique nodes participated in pipeline execution.
long	pipelineMinimumExecutionTime() Gets pipeline minimum execution time, i.e.
int	queryAverageExecutionNodes() Gets average number of unique nodes participated in query execution.
long	queryAverageExecutionTime() Gets query average execution time.
int	queryMaximumExecutionNodes() Gets maximum number of unique nodes participated in query execution.
long	queryMaximumExecutionTime() Gets query maximum execution time.
int	queryMinimumExecutionNodes() Gets minimum number of unique nodes participated in query execution.
long	queryMinimumExecutionTime() Gets query minimum execution time.
void	sampleCurrentStages() Samples current sessions.
int	stageActiveExecutionCount() Gets number of stages currently being executed in streamer pool.
Collection<GridStreamerStageMetrics>	stageMetrics() Gets metrics for all stages.
GridStreamerStageMetrics	stageMetrics(String stageName) Gets current stage metrics, if stage with given name is not configured then IllegalArgumentException will be thrown.
long	stageTotalExecutionCount() Gets total number of stages executed since last reset.
int	stageWaitingExecutionCount() Gets number of event batches currently waiting to be executed.
Collection<GridStreamerWindowMetrics>	windowMetrics() Gets metrics for all windows.
GridStreamerWindowMetrics	windowMetrics(String winName) Gets current window metrics, if window with given name is not configured then IllegalArgumentException will be thrown.

Methods inherited from class java.lang.Object

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

Constructor Detail

GridStreamerMetricsHolder

public GridStreamerMetricsHolder(GridStreamerStageMetricsHolder[] stageMetrics,
                         GridStreamerWindowMetricsHolder[] windowMetrics,
                         int execSvcCap)

Parameters:

stageMetrics - Array of stage metrics holders.

windowMetrics - Array of window metrics holders.

execSvcCap - Executor service capacity.

Method Detail

stageActiveExecutionCount

public int stageActiveExecutionCount()

Gets number of stages currently being executed in streamer pool.

Specified by:

stageActiveExecutionCount in interface GridStreamerMetrics

Returns:

Number of stages. Cannot be more than pool thread count.

stageWaitingExecutionCount

public int stageWaitingExecutionCount()

Gets number of event batches currently waiting to be executed.

Specified by:

stageWaitingExecutionCount in interface GridStreamerMetrics

Returns:

Number of event batches waiting to be processed.

stageTotalExecutionCount

public long stageTotalExecutionCount()

Gets total number of stages executed since last reset.

Specified by:

stageTotalExecutionCount in interface GridStreamerMetrics

Returns:

Total number of stages executed since last reset.

pipelineMaximumExecutionTime

public long pipelineMaximumExecutionTime()

Gets pipeline maximum execution time, i.e. time between execution start and time when last stage in pipeline returned empty map. If pipeline execution was split to different nodes, metrics for each split will be recorded independently.

Specified by:

pipelineMaximumExecutionTime in interface GridStreamerMetrics

Returns:

Pipeline maximum execution time.

pipelineMinimumExecutionTime

public long pipelineMinimumExecutionTime()

Gets pipeline minimum execution time, i.e. time between execution start and time when last stage in pipeline returned empty map. If pipeline execution was split to different nodes, metrics for each split will be recorded independently.

Specified by:

pipelineMinimumExecutionTime in interface GridStreamerMetrics

Returns:

Pipeline minimum execution time.

pipelineAverageExecutionTime

public long pipelineAverageExecutionTime()

Gets pipeline average execution time, i.e. time between execution start and time when last stage in pipeline returned empty map. If pipeline execution was split, metrics for each split will be recorded independently.

Specified by:

pipelineAverageExecutionTime in interface GridStreamerMetrics

Returns:

Pipeline average execution time.

pipelineMaximumExecutionNodes

public int pipelineMaximumExecutionNodes()

Gets maximum number of unique nodes participated in pipeline execution. If pipeline execution was split, metrics for each split will be recorded independently.

Specified by:

pipelineMaximumExecutionNodes in interface GridStreamerMetrics

Returns:

Maximum number of unique nodes in pipeline execution.

pipelineMinimumExecutionNodes

public int pipelineMinimumExecutionNodes()

Gets minimum number of unique nodes participated in pipeline execution. If pipeline execution was split, metrics for each split will be recorded independently.

Specified by:

pipelineMinimumExecutionNodes in interface GridStreamerMetrics

Returns:

Minimum number of unique nodes in pipeline execution.

pipelineAverageExecutionNodes

public int pipelineAverageExecutionNodes()

Gets average number of unique nodes participated in pipeline execution. If pipeline execution was split, metrics for each split will be recorded independently.

Specified by:

pipelineAverageExecutionNodes in interface GridStreamerMetrics

Returns:

Average number of unique nodes in pipeline execution.

queryMaximumExecutionTime

public long queryMaximumExecutionTime()

Gets query maximum execution time. If query execution was split to different nodes, metrics for each split will be recorded independently.

Specified by:

queryMaximumExecutionTime in interface GridStreamerMetrics

Returns:

Query maximum execution time.

queryMinimumExecutionTime

public long queryMinimumExecutionTime()

Gets query minimum execution time. If query execution was split to different nodes, metrics for each split will be recorded independently.

Specified by:

queryMinimumExecutionTime in interface GridStreamerMetrics

Returns:

Query minimum execution time.

queryAverageExecutionTime

public long queryAverageExecutionTime()

Gets query average execution time. If query execution was split to different nodes, metrics for each split will be recorded independently.

Specified by:

queryAverageExecutionTime in interface GridStreamerMetrics

Returns:

Query average execution time.

queryMaximumExecutionNodes

public int queryMaximumExecutionNodes()

Gets maximum number of unique nodes participated in query execution. If query execution was split, metrics for each split will be recorded independently.

Specified by:

queryMaximumExecutionNodes in interface GridStreamerMetrics

Returns:

Maximum number of unique nodes in query execution.

queryMinimumExecutionNodes

public int queryMinimumExecutionNodes()

Gets minimum number of unique nodes participated in query execution. If query execution was split, metrics for each split will be recorded independently.

Specified by:

queryMinimumExecutionNodes in interface GridStreamerMetrics

Returns:

Minimum number of unique nodes in query execution.

queryAverageExecutionNodes

public int queryAverageExecutionNodes()

Gets average number of unique nodes participated in query execution. If query execution was split, metrics for each split will be recorded independently.

Specified by:

queryAverageExecutionNodes in interface GridStreamerMetrics

Returns:

Average number of unique nodes in query execution.

currentActiveSessions

public int currentActiveSessions()

Gets number of current active sessions. Since event execution sessions are tracked only when atLeastOnce configuration property is set to true, this metric will be collected only in this case. When atLeastOnce is set to false, this metric will always be zero.

Specified by:

currentActiveSessions in interface GridStreamerMetrics

Returns:

Number of current active sessions.

maximumActiveSessions

public int maximumActiveSessions()

Gets maximum number of active sessions since last reset. Since event execution sessions are tracked only when atLeastOnce configuration property is set to true, this metric will be collected only in this case. When atLeastOnce is set to false, this metric will always be zero.

Specified by:

maximumActiveSessions in interface GridStreamerMetrics

Returns:

Maximum active sessions since last reset.

failuresCount

public int failuresCount()

Gets number of failures. If atLeastOnce flag is set to steamer configuration, then only root node failures will be counted. Otherwise each node will count failures independently.

Specified by:

failuresCount in interface GridStreamerMetrics

Returns:

Failures count.

executorServiceCapacity

public int executorServiceCapacity()

Gets maximum number of threads in executor service.

Specified by:

executorServiceCapacity in interface GridStreamerMetrics

Returns:

Maximum number of threads in executor service.

stageMetrics

public GridStreamerStageMetrics stageMetrics(String stageName)

Gets current stage metrics, if stage with given name is not configured then IllegalArgumentException will be thrown.

Specified by:

stageMetrics in interface GridStreamerMetrics

Parameters:

stageName - Stage name.

Returns:

Stage metrics.

stageMetrics

public Collection<GridStreamerStageMetrics> stageMetrics()

Gets metrics for all stages. Stage metrics order is the same as stage order in configuration.

Specified by:

stageMetrics in interface GridStreamerMetrics

Returns:

Stage metrics collection.

windowMetrics

public GridStreamerWindowMetrics windowMetrics(String winName)

Gets current window metrics, if window with given name is not configured then IllegalArgumentException will be thrown.

Specified by:

windowMetrics in interface GridStreamerMetrics

Parameters:

winName - Window name.

Returns:

Window metrics.

windowMetrics

public Collection<GridStreamerWindowMetrics> windowMetrics()

Gets metrics for all windows.

Specified by:

windowMetrics in interface GridStreamerMetrics

Returns:

Collection of window metrics.

onStageScheduled

public void onStageScheduled()

Stage scheduled callback.

onStageExecutionStarted

public void onStageExecutionStarted(int idx,
                           long waitTime)

Stage execution started callback.

Parameters:

idx - Stage index.

waitTime - Stage wait time.

onStageExecutionFinished

public void onStageExecutionFinished(int idx,
                            long execTime)

Stage execution finished callback.

Parameters:

idx - Stage index.

execTime - Stage execution time.

onPipelineCompleted

public void onPipelineCompleted(long execTime,
                       int execNodes)

Pipeline completed callback.

Parameters:

execTime - Pipeline execution time.

execNodes - Pipeline execution nodes.

onQueryCompleted

public void onQueryCompleted(long execTime,
                    int execNodes)

Query completed callback.

Parameters:

execTime - Query execution time.

execNodes - Query execution nodes.

onSessionStarted

public void onSessionStarted()

Session started callback.

onSessionFinished

public void onSessionFinished()

Session finished callback.

onSessionFailed

public void onSessionFailed()

Session failed callback.

onStageFailure

public void onStageFailure(int idx)

Stage failure callback.

Parameters:

idx - Stage index.

sampleCurrentStages

public void sampleCurrentStages()

Samples current sessions.