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[FLINK-21348] Add tests for AdaptiveScheduler's StateWithExecutionGraph
This closes apache#15342
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...e/src/main/java/org/apache/flink/runtime/scheduler/DefaultOperatorCoordinatorHandler.java
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| /* | ||
| * Licensed to the Apache Software Foundation (ASF) under one | ||
| * or more contributor license agreements. See the NOTICE file | ||
| * distributed with this work for additional information | ||
| * regarding copyright ownership. The ASF licenses this file | ||
| * to you under the Apache License, Version 2.0 (the | ||
| * "License"); you may not use this file except in compliance | ||
| * with the License. You may obtain a copy of the License at | ||
| * | ||
| * http:https://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
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| package org.apache.flink.runtime.scheduler; | ||
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| import org.apache.flink.runtime.concurrent.ComponentMainThreadExecutor; | ||
| import org.apache.flink.runtime.execution.ExecutionState; | ||
| import org.apache.flink.runtime.executiongraph.Execution; | ||
| import org.apache.flink.runtime.executiongraph.ExecutionAttemptID; | ||
| import org.apache.flink.runtime.executiongraph.ExecutionGraph; | ||
| import org.apache.flink.runtime.executiongraph.ExecutionJobVertex; | ||
| import org.apache.flink.runtime.jobgraph.OperatorID; | ||
| import org.apache.flink.runtime.operators.coordination.CoordinationRequest; | ||
| import org.apache.flink.runtime.operators.coordination.CoordinationRequestHandler; | ||
| import org.apache.flink.runtime.operators.coordination.CoordinationResponse; | ||
| import org.apache.flink.runtime.operators.coordination.OperatorCoordinator; | ||
| import org.apache.flink.runtime.operators.coordination.OperatorCoordinatorHolder; | ||
| import org.apache.flink.runtime.operators.coordination.OperatorEvent; | ||
| import org.apache.flink.runtime.operators.coordination.TaskNotRunningException; | ||
| import org.apache.flink.util.ExceptionUtils; | ||
| import org.apache.flink.util.FlinkException; | ||
| import org.apache.flink.util.FlinkRuntimeException; | ||
| import org.apache.flink.util.IOUtils; | ||
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| import java.util.Collection; | ||
| import java.util.HashMap; | ||
| import java.util.Map; | ||
| import java.util.concurrent.CompletableFuture; | ||
| import java.util.function.Consumer; | ||
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| /** Default handler for the {@link OperatorCoordinator OperatorCoordinators}. */ | ||
| public class DefaultOperatorCoordinatorHandler implements OperatorCoordinatorHandler { | ||
| private final ExecutionGraph executionGraph; | ||
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| private final Map<OperatorID, OperatorCoordinatorHolder> coordinatorMap; | ||
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| private final Consumer<Throwable> globalFailureHandler; | ||
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| public DefaultOperatorCoordinatorHandler( | ||
| ExecutionGraph executionGraph, Consumer<Throwable> globalFailureHandler) { | ||
| this.executionGraph = executionGraph; | ||
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| this.coordinatorMap = createCoordinatorMap(executionGraph); | ||
| this.globalFailureHandler = globalFailureHandler; | ||
| } | ||
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| private static Map<OperatorID, OperatorCoordinatorHolder> createCoordinatorMap( | ||
| ExecutionGraph executionGraph) { | ||
| Map<OperatorID, OperatorCoordinatorHolder> coordinatorMap = new HashMap<>(); | ||
| for (ExecutionJobVertex vertex : executionGraph.getAllVertices().values()) { | ||
| for (OperatorCoordinatorHolder holder : vertex.getOperatorCoordinators()) { | ||
| coordinatorMap.put(holder.operatorId(), holder); | ||
| } | ||
| } | ||
| return coordinatorMap; | ||
| } | ||
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| @Override | ||
| public void initializeOperatorCoordinators(ComponentMainThreadExecutor mainThreadExecutor) { | ||
| for (OperatorCoordinatorHolder coordinatorHolder : coordinatorMap.values()) { | ||
| coordinatorHolder.lazyInitialize(globalFailureHandler, mainThreadExecutor); | ||
| } | ||
| } | ||
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| @Override | ||
| public void startAllOperatorCoordinators() { | ||
| final Collection<OperatorCoordinatorHolder> coordinators = coordinatorMap.values(); | ||
| try { | ||
| for (OperatorCoordinatorHolder coordinator : coordinators) { | ||
| coordinator.start(); | ||
| } | ||
| } catch (Throwable t) { | ||
| ExceptionUtils.rethrowIfFatalErrorOrOOM(t); | ||
| coordinators.forEach(IOUtils::closeQuietly); | ||
| throw new FlinkRuntimeException("Failed to start the operator coordinators", t); | ||
| } | ||
| } | ||
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| @Override | ||
| public void disposeAllOperatorCoordinators() { | ||
| coordinatorMap.values().forEach(IOUtils::closeQuietly); | ||
| } | ||
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| @Override | ||
| public void deliverOperatorEventToCoordinator( | ||
| final ExecutionAttemptID taskExecutionId, | ||
| final OperatorID operatorId, | ||
| final OperatorEvent evt) | ||
| throws FlinkException { | ||
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| // Failure semantics (as per the javadocs of the method): | ||
| // If the task manager sends an event for a non-running task or an non-existing operator | ||
| // coordinator, then respond with an exception to the call. If task and coordinator exist, | ||
| // then we assume that the call from the TaskManager was valid, and any bubbling exception | ||
| // needs to cause a job failure. | ||
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| final Execution exec = executionGraph.getRegisteredExecutions().get(taskExecutionId); | ||
| if (exec == null || exec.getState() != ExecutionState.RUNNING) { | ||
| // This situation is common when cancellation happens, or when the task failed while the | ||
| // event was just being dispatched asynchronously on the TM side. | ||
| // It should be fine in those expected situations to just ignore this event, but, to be | ||
| // on the safe, we notify the TM that the event could not be delivered. | ||
| throw new TaskNotRunningException( | ||
| "Task is not known or in state running on the JobManager."); | ||
| } | ||
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| final OperatorCoordinatorHolder coordinator = coordinatorMap.get(operatorId); | ||
| if (coordinator == null) { | ||
| throw new FlinkException("No coordinator registered for operator " + operatorId); | ||
| } | ||
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| try { | ||
| coordinator.handleEventFromOperator(exec.getParallelSubtaskIndex(), evt); | ||
| } catch (Throwable t) { | ||
| ExceptionUtils.rethrowIfFatalErrorOrOOM(t); | ||
| globalFailureHandler.accept(t); | ||
| } | ||
| } | ||
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| @Override | ||
| public CompletableFuture<CoordinationResponse> deliverCoordinationRequestToCoordinator( | ||
| OperatorID operator, CoordinationRequest request) throws FlinkException { | ||
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| final OperatorCoordinatorHolder coordinatorHolder = coordinatorMap.get(operator); | ||
| if (coordinatorHolder == null) { | ||
| throw new FlinkException("Coordinator of operator " + operator + " does not exist"); | ||
| } | ||
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| final OperatorCoordinator coordinator = coordinatorHolder.coordinator(); | ||
| if (coordinator instanceof CoordinationRequestHandler) { | ||
| return ((CoordinationRequestHandler) coordinator).handleCoordinationRequest(request); | ||
| } else { | ||
| throw new FlinkException( | ||
| "Coordinator of operator " + operator + " cannot handle client event"); | ||
| } | ||
| } | ||
| } |
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