org.apache.flink.runtime.executiongraph.failover

Interface RestartBackoffTimeStrategy

All Known Implementing Classes:

ExponentialDelayRestartBackoffTimeStrategy, FailureRateRestartBackoffTimeStrategy, FixedDelayRestartBackoffTimeStrategy, NoRestartBackoffTimeStrategy

public interface RestartBackoffTimeStrategy

Strategy to decide whether to restart failed tasks and the delay to do the restarting.

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static interface	RestartBackoffTimeStrategy.Factory The factory to instantiate RestartBackoffTimeStrategy.

Method Summary

Modifier and Type	Method and Description
boolean	canRestart() Returns whether a restart should be conducted.
long	getBackoffTime() Returns the delay to do the restarting.
boolean	notifyFailure(Throwable cause) Notify the strategy about the task failure cause.

Method Detail

canRestart

boolean canRestart()

Returns whether a restart should be conducted.

Returns:

whether a restart should be conducted

getBackoffTime

long getBackoffTime()

Returns the delay to do the restarting.

Returns:

the delay to do the restarting

notifyFailure

boolean notifyFailure(Throwable cause)

Notify the strategy about the task failure cause.

Parameters:

cause - of the task failure

Returns:

True means that the current failure is the first one after the most-recent failure handling happened, false means that there has been a failure before that was not handled, yet, and the current failure will be considered in a combined failure handling effort.