org.apache.flink.runtime.clusterframework.standalone.StandaloneResourceManager Maven / Gradle / Ivy
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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://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.clusterframework.standalone;
import akka.actor.ActorSelection;
import org.apache.flink.configuration.Configuration;
import org.apache.flink.runtime.clusterframework.FlinkResourceManager;
import org.apache.flink.runtime.clusterframework.ApplicationStatus;
import org.apache.flink.runtime.clusterframework.types.ResourceID;
import org.apache.flink.runtime.leaderretrieval.LeaderRetrievalService;
import java.util.Collection;
/**
* A standalone implementation of the resource manager. Used when the system is started in
* standalone mode (via scripts), rather than via a resource framework like YARN or Mesos.
*/
public class StandaloneResourceManager extends FlinkResourceManager {
public StandaloneResourceManager(Configuration flinkConfig, LeaderRetrievalService leaderRetriever) {
super(0, flinkConfig, leaderRetriever);
}
// ------------------------------------------------------------------------
// Framework specific behavior
// ------------------------------------------------------------------------
@Override
protected void triggerConnectingToJobManager(String leaderAddress) {
ActorSelection jobManagerSel = context().actorSelection(leaderAddress);
// check if we are at the leading JobManager.
if (jobManagerSel.anchorPath().root().equals(self().path().root())) {
super.triggerConnectingToJobManager(leaderAddress);
} else {
LOG.info("Received leader address but not running in leader ActorSystem. Cancelling registration.");
}
}
@Override
protected void initialize() throws Exception {
// nothing to initialize
}
@Override
protected void shutdownApplication(ApplicationStatus finalStatus, String optionalDiagnostics) {
}
@Override
protected void fatalError(String message, Throwable error) {
LOG.error("FATAL ERROR IN RESOURCE MANAGER: " + message, error);
// kill this process
System.exit(EXIT_CODE_FATAL_ERROR);
}
@Override
protected Collection reacceptRegisteredWorkers(Collection toConsolidate)
{
// we accept everything
return toConsolidate;
}
@Override
protected void requestNewWorkers(int numWorkers) {
// cannot request new workers
}
@Override
protected ResourceID workerStarted(ResourceID resourceID) {
// we accept everything
return resourceID;
}
@Override
protected void releaseStartedWorker(ResourceID resourceID) {
// cannot release any workers, they simply stay
}
@Override
protected void releasePendingWorker(ResourceID resourceID) {
// no pending workers
}
@Override
protected int getNumWorkerRequestsPending() {
// this one never has pending requests and containers in launch
return 0;
}
@Override
protected int getNumWorkersPendingRegistration() {
// this one never has pending requests and containers in launch
return 0;
}
// ------------------------------------------------------------------------
// Actor messages
// ------------------------------------------------------------------------
@Override
protected void handleMessage(Object message) {
super.handleMessage(message);
}
}