org.apache.flink.runtime.clusterframework.ContaineredTaskManagerParameters Maven / Gradle / Ivy
The newest version!
/*
* 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;
import org.apache.flink.configuration.Configuration;
import org.apache.flink.configuration.ResourceManagerOptions;
import java.util.HashMap;
import java.util.Map;
/**
* This class describes the basic parameters for launching a TaskManager process.
*/
public class ContaineredTaskManagerParameters implements java.io.Serializable {
private static final long serialVersionUID = -3096987654278064670L;
/** The number of slots per TaskManager. */
private final int numSlots;
/** Environment variables to add to the Java process. */
private final HashMap taskManagerEnv;
private final TaskExecutorProcessSpec taskExecutorProcessSpec;
public ContaineredTaskManagerParameters(
TaskExecutorProcessSpec taskExecutorProcessSpec,
int numSlots,
HashMap taskManagerEnv) {
this.taskExecutorProcessSpec = taskExecutorProcessSpec;
this.numSlots = numSlots;
this.taskManagerEnv = taskManagerEnv;
}
// ------------------------------------------------------------------------
public TaskExecutorProcessSpec getTaskExecutorProcessSpec() {
return taskExecutorProcessSpec;
}
public int numSlots() {
return numSlots;
}
public Map taskManagerEnv() {
return taskManagerEnv;
}
// ------------------------------------------------------------------------
@Override
public String toString() {
return "TaskManagerParameters {" +
"taskExecutorProcessSpec=" + taskExecutorProcessSpec +
", numSlots=" + numSlots +
", taskManagerEnv=" + taskManagerEnv +
'}';
}
// ------------------------------------------------------------------------
// Factory
// ------------------------------------------------------------------------
/**
* Computes the parameters to be used to start a TaskManager Java process.
*
* @param config The Flink configuration.
* @param taskExecutorProcessSpec The resource specifics of the task executor.
* @param numSlots Number of slots of the task executor.
* @return The parameters to start the TaskManager processes with.
*/
public static ContaineredTaskManagerParameters create(
Configuration config,
TaskExecutorProcessSpec taskExecutorProcessSpec,
int numSlots) {
// obtain the additional environment variables from the configuration
final HashMap envVars = new HashMap<>();
final String prefix = ResourceManagerOptions.CONTAINERIZED_TASK_MANAGER_ENV_PREFIX;
for (String key : config.keySet()) {
if (key.startsWith(prefix) && key.length() > prefix.length()) {
// remove prefix
String envVarKey = key.substring(prefix.length());
envVars.put(envVarKey, config.getString(key, null));
}
}
// done
return new ContaineredTaskManagerParameters(
taskExecutorProcessSpec, numSlots, envVars);
}
}