org.apache.flink.runtime.rest.handler.legacy.backpressure

Class StackTraceSample

java.lang.Object

org.apache.flink.runtime.rest.handler.legacy.backpressure.StackTraceSample

public class StackTraceSample
extends Object

A sample of stack traces for one or more tasks.

The sampling is triggered in StackTraceSampleCoordinator.

Constructor Summary

Constructors

Constructor and Description
StackTraceSample(int sampleId, long startTime, long endTime, Map<ExecutionAttemptID,List<StackTraceElement[]>> stackTracesByTask) Creates a stack trace sample.

Method Summary

Modifier and Type	Method and Description
long	getEndTime() Returns the time stamp, when all stack traces were collected at the JobManager.
int	getSampleId() Returns the ID of the sample.
Map<ExecutionAttemptID,List<StackTraceElement[]>>	getStackTraces() Returns the a map of stack traces by execution ID.
long	getStartTime() Returns the time stamp, when the sample was triggered.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

StackTraceSample

public StackTraceSample(int sampleId,
                        long startTime,
                        long endTime,
                        Map<ExecutionAttemptID,List<StackTraceElement[]>> stackTracesByTask)

Creates a stack trace sample.

Parameters:

sampleId - ID of the sample.

startTime - Time stamp, when the sample was triggered.

endTime - Time stamp, when all stack traces were collected at the JobManager.

stackTracesByTask - Map of stack traces by execution ID.

Method Detail

getSampleId

public int getSampleId()

Returns the ID of the sample.

Returns:

ID of the sample

getStartTime

public long getStartTime()

Returns the time stamp, when the sample was triggered.

Returns:

Time stamp, when the sample was triggered

getEndTime

public long getEndTime()

Returns the time stamp, when all stack traces were collected at the JobManager.

Returns:

Time stamp, when all stack traces were collected at the JobManager

getStackTraces

public Map<ExecutionAttemptID,List<StackTraceElement[]>> getStackTraces()

Returns the a map of stack traces by execution ID.

Returns:

Map of stack traces by execution ID

toString

public String toString()

Overrides:

toString in class Object