org.apache.flink.runtime.checkpoint

类 VertexFinishedStateChecker

java.lang.Object

org.apache.flink.runtime.checkpoint.VertexFinishedStateChecker

public class VertexFinishedStateChecker
extends Object

This class encapsulates the operation that checks if there are illegal modification to the JobGraph when restoring from a checkpoint with partially or fully finished operator states.

As a whole, it ensures

1. All the operators inside a JobVertex have the same finished state.
2. The predecessors of a fully finished vertex must also be fully finished.
3. The predecessors of a partially finished vertex
   • If connected via ALL_TO_ALL edge, the predecessor must be fully finished.
   • If connected via POINTWISE edge, the predecessor must be partially finished or fully finished.

构造器概要

构造器

构造器和说明
VertexFinishedStateChecker(Set<ExecutionJobVertex> vertices, Map<OperatorID,OperatorState> operatorStates)

方法概要

限定符和类型	方法和说明
void	validateOperatorsFinishedState()

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

VertexFinishedStateChecker

public VertexFinishedStateChecker(Set<ExecutionJobVertex> vertices,
                                  Map<OperatorID,OperatorState> operatorStates)

方法详细资料

validateOperatorsFinishedState

public void validateOperatorsFinishedState()