| /* |
| * 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.ignite.hadoop; |
| |
| import java.util.Collection; |
| import org.apache.ignite.IgniteCheckedException; |
| import org.apache.ignite.cluster.ClusterNode; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** |
| * Map-reduce execution planner. |
| */ |
| public interface HadoopMapReducePlanner { |
| /** |
| * Prepares map-reduce execution plan for the given job and topology. |
| * |
| * @param job Job. |
| * @param top Topology. |
| * @param oldPlan Old plan in case of partial failure. |
| * @return Map reduce plan. |
| * @throws IgniteCheckedException If an error occurs. |
| */ |
| public HadoopMapReducePlan preparePlan(HadoopJob job, Collection<ClusterNode> top, |
| @Nullable HadoopMapReducePlan oldPlan) throws IgniteCheckedException; |
| } |