org.apache.flink.runtime.jobmaster.DefaultExecutionDeploymentReconciler Maven / Gradle / Ivy
/*
* 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://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.
*/
package org.apache.flink.runtime.jobmaster;
import org.apache.flink.runtime.clusterframework.types.ResourceID;
import org.apache.flink.runtime.executiongraph.ExecutionAttemptID;
import org.apache.flink.runtime.taskexecutor.ExecutionDeploymentReport;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
/**
* Default {@link ExecutionDeploymentReconciler} implementation. Detects missing/unknown
* deployments, and defers to a provided {@link ExecutionDeploymentReconciliationHandler} to resolve
* them.
*/
public class DefaultExecutionDeploymentReconciler implements ExecutionDeploymentReconciler {
private final ExecutionDeploymentReconciliationHandler handler;
public DefaultExecutionDeploymentReconciler(ExecutionDeploymentReconciliationHandler handler) {
this.handler = handler;
}
@Override
public void reconcileExecutionDeployments(
ResourceID taskExecutorHost,
ExecutionDeploymentReport executionDeploymentReport,
Map expectedDeployedExecutions) {
final Set unknownExecutions =
new HashSet<>(executionDeploymentReport.getExecutions());
final Set missingExecutions = new HashSet<>();
for (Map.Entry execution :
expectedDeployedExecutions.entrySet()) {
boolean deployed = unknownExecutions.remove(execution.getKey());
if (!deployed && execution.getValue() != ExecutionDeploymentState.PENDING) {
missingExecutions.add(execution.getKey());
}
}
if (!unknownExecutions.isEmpty()) {
handler.onUnknownDeploymentsOf(unknownExecutions, taskExecutorHost);
}
if (!missingExecutions.isEmpty()) {
handler.onMissingDeploymentsOf(missingExecutions, taskExecutorHost);
}
}
}