io.mantisrx.runtime.MigrationStrategy Maven / Gradle / Ivy
/*
* Copyright 2019 Netflix, Inc.
*
* Licensed 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 io.mantisrx.runtime;
import java.util.List;
import java.util.concurrent.ConcurrentSkipListSet;
public abstract class MigrationStrategy {
private final WorkerMigrationConfig config;
public MigrationStrategy(final WorkerMigrationConfig config) {
this.config = config;
}
/**
* @param workersOnDisabledVms set of WorkerNumber on disabled VM
* @param numRunningWorkers total number of running workers for this job
* @param totalNumWorkers total number of workers for this job
* @param lastWorkerMigrationTimestamp last timestamp at which a worker was migrated for this job
*
* @return list of WorkerNumber to migrate in this iteration
*/
abstract public List execute(final ConcurrentSkipListSet workersOnDisabledVms,
final int numRunningWorkers,
final int totalNumWorkers,
final long lastWorkerMigrationTimestamp);
}