| /* |
| * 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.geode.internal.cache.partitioned.rebalance; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.apache.logging.log4j.Logger; |
| |
| import org.apache.geode.internal.cache.partitioned.rebalance.model.BucketRollup; |
| import org.apache.geode.internal.cache.partitioned.rebalance.model.Member; |
| import org.apache.geode.internal.cache.partitioned.rebalance.model.Move; |
| import org.apache.geode.internal.cache.partitioned.rebalance.model.PartitionedRegionLoadModel; |
| import org.apache.geode.internal.logging.LogService; |
| |
| /** |
| * A director to create redundant copies for buckets in the correct place for a fixed partitioned |
| * region. This is most commonly used as part of the FPRDirector. |
| * |
| */ |
| |
| public class SatisfyRedundancyFPR extends RebalanceDirectorAdapter { |
| |
| private static final Logger logger = LogService.getLogger(); |
| |
| private PartitionedRegionLoadModel model; |
| |
| @Override |
| public void initialize(PartitionedRegionLoadModel model) { |
| this.model = model; |
| |
| } |
| |
| @Override |
| public void membershipChanged(PartitionedRegionLoadModel model) { |
| initialize(model); |
| |
| } |
| |
| @Override |
| public boolean nextStep() { |
| createFPRBucketsForThisNode(); |
| return false; |
| } |
| |
| public void createFPRBucketsForThisNode() { |
| final Map<BucketRollup, Move> moves = new HashMap<BucketRollup, Move>(); |
| |
| for (BucketRollup bucket : model.getLowRedundancyBuckets()) { |
| Move move = model.findBestTargetForFPR(bucket, true); |
| |
| if (move == null && !model.enforceUniqueZones()) { |
| move = model.findBestTargetForFPR(bucket, false); |
| } |
| |
| if (move != null) { |
| moves.put(bucket, move); |
| } else { |
| if (logger.isDebugEnabled()) { |
| logger.debug("Skipping low redundancy bucket {} because no member will accept it", |
| bucket); |
| } |
| } |
| } |
| // TODO: This can be done in a thread pool to speed things up as all buckets |
| // are different, there will not be any contention for lock |
| for (Map.Entry<BucketRollup, Move> bucketMove : moves.entrySet()) { |
| BucketRollup bucket = bucketMove.getKey(); |
| Move move = bucketMove.getValue(); |
| Member targetMember = move.getTarget(); |
| |
| model.createRedundantBucket(bucket, targetMember); |
| } |
| model.waitForOperations(); |
| } |
| } |