org.apache.flink.runtime.scheduler.adaptive

类 CreatingExecutionGraph

java.lang.Object

org.apache.flink.runtime.scheduler.adaptive.CreatingExecutionGraph

public class CreatingExecutionGraph
extends Object

State which waits for the creation of the ExecutionGraph. If the creation fails, then the state transitions to Finished. If the creation succeeds, then the system tries to assign the required slots. If the set of available slots has changed so that the created ExecutionGraph cannot be executed, the state transitions back into WaitingForResources. If there are enough slots for the ExecutionGraph to run, the state transitions to Executing.

构造器概要

构造器

构造器和说明

CreatingExecutionGraph(org.apache.flink.runtime.scheduler.adaptive.CreatingExecutionGraph.Context context, CompletableFuture<org.apache.flink.runtime.scheduler.adaptive.CreatingExecutionGraph.ExecutionGraphWithVertexParallelism> executionGraphWithParallelismFuture, org.slf4j.Logger logger, org.apache.flink.runtime.scheduler.adaptive.CreatingExecutionGraph.OperatorCoordinatorHandlerFactory operatorCoordinatorFactory)

方法概要

限定符和类型	方法和说明
default <T> Optional<T>	as(Class<? extends T> clazz) Tries to cast this state into a type of the given clazz.
void	cancel() Cancels the job execution.
ArchivedExecutionGraph	getJob() Gets the current ArchivedExecutionGraph.
org.apache.flink.api.common.JobStatus	getJobStatus() Gets the current JobStatus.
org.slf4j.Logger	getLogger() Gets the logger.
void	handleGlobalFailure(Throwable cause) Handles a global failure.
default void	onLeave(Class<? extends org.apache.flink.runtime.scheduler.adaptive.State> newState) This method is called whenever one transitions out of this state.
void	suspend(Throwable cause) Suspends the job execution.
default <T,V,E extends Exception> Optional<V>	tryCall(Class<? extends T> clazz, org.apache.flink.util.function.FunctionWithException<T,V,E> action, String debugMessage) Tries to run the action if this state is of type clazz.
default <T,E extends Exception> void	tryRun(Class<? extends T> clazz, org.apache.flink.util.function.ThrowingConsumer<T,E> action, String debugMessage) Tries to run the action if this state is of type clazz.

从类继承的方法 java.lang.Object

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

构造器详细资料

CreatingExecutionGraph

public CreatingExecutionGraph(org.apache.flink.runtime.scheduler.adaptive.CreatingExecutionGraph.Context context,
                              CompletableFuture<org.apache.flink.runtime.scheduler.adaptive.CreatingExecutionGraph.ExecutionGraphWithVertexParallelism> executionGraphWithParallelismFuture,
                              org.slf4j.Logger logger,
                              org.apache.flink.runtime.scheduler.adaptive.CreatingExecutionGraph.OperatorCoordinatorHandlerFactory operatorCoordinatorFactory)

方法详细资料

cancel

public void cancel()

Cancels the job execution.

suspend

public void suspend(Throwable cause)

Suspends the job execution.

参数:

cause - cause for the suspension

getJobStatus

public org.apache.flink.api.common.JobStatus getJobStatus()

Gets the current JobStatus. The returned job status will remain unchanged at least until the scheduler transitions to a different state.

返回:

the current JobStatus

getJob

public ArchivedExecutionGraph getJob()

Gets the current ArchivedExecutionGraph.

返回:

the current ArchivedExecutionGraph

handleGlobalFailure

public void handleGlobalFailure(Throwable cause)

从接口复制的说明: GlobalFailureHandler

Handles a global failure.

参数:

cause - A cause that describes the global failure.

getLogger

public org.slf4j.Logger getLogger()

Gets the logger.

返回:

the logger

onLeave

public void onLeave(Class<? extends org.apache.flink.runtime.scheduler.adaptive.State> newState)

This method is called whenever one transitions out of this state.

参数:

newState - newState is the state into which the scheduler transitions

as

public <T> Optional<T> as(Class<? extends T> clazz)

Tries to cast this state into a type of the given clazz.

类型参数:

T - target type

参数:

clazz - clazz describes the target type

返回:

Optional.of(T) target type if the underlying type can be cast into clazz; otherwise Optional.empty()

tryRun

public <T,E extends Exception> void tryRun(Class<? extends T> clazz,
                                           org.apache.flink.util.function.ThrowingConsumer<T,E> action,
                                           String debugMessage)
                                    throws E extends Exception

Tries to run the action if this state is of type clazz.

类型参数:

T - target type

E - error type

参数:

clazz - clazz describes the target type

action - action to run if this state is of the target type

debugMessage - debugMessage which is printed if this state is not the target type

抛出:

E - an exception if the action fails

E extends Exception

tryCall

public <T,V,E extends Exception> Optional<V> tryCall(Class<? extends T> clazz,
                                                     org.apache.flink.util.function.FunctionWithException<T,V,E> action,
                                                     String debugMessage)
                                              throws E extends Exception

Tries to run the action if this state is of type clazz.

类型参数:

T - target type

V - value type

E - error type

参数:

clazz - clazz describes the target type

action - action to run if this state is of the target type

debugMessage - debugMessage which is printed if this state is not the target type

返回:

Optional.of(T) the action result if it is successfully executed; otherwise Optional.empty()

抛出:

E - an exception if the action fails

E extends Exception