| /* |
| * 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; |
| |
| import java.io.DataInput; |
| import java.io.DataOutput; |
| import java.io.IOException; |
| |
| import org.apache.geode.distributed.internal.DistributionConfig; |
| import org.apache.geode.internal.cache.BucketAdvisor; |
| import org.apache.geode.internal.cache.PartitionedRegion; |
| import org.apache.geode.internal.cache.PartitionedRegionDataStore; |
| import org.apache.geode.internal.serialization.DataSerializableFixedID; |
| import org.apache.geode.internal.serialization.DeserializationContext; |
| import org.apache.geode.internal.serialization.SerializationContext; |
| import org.apache.geode.internal.serialization.Version; |
| |
| /** |
| * A load probe which calculates the load of a pr using the size of the buckets in bytes. |
| * |
| * @since GemFire 6.0 |
| */ |
| public class SizedBasedLoadProbe implements LoadProbe, DataSerializableFixedID { |
| private static final long serialVersionUID = 7040814060882774875L; |
| // TODO rebalancing come up with a better threshold for minumum bucket size? |
| public static final int MIN_BUCKET_SIZE = |
| Integer.getInteger(DistributionConfig.GEMFIRE_PREFIX + "MIN_BUCKET_SIZE", 1).intValue(); |
| |
| @Override |
| public PRLoad getLoad(PartitionedRegion pr) { |
| PartitionedRegionDataStore ds = pr.getDataStore(); |
| int configuredBucketCount = pr.getTotalNumberOfBuckets(); |
| PRLoad prLoad = new PRLoad(configuredBucketCount, pr.getLocalMaxMemory()); |
| |
| // key: bid, value: size |
| for (Integer bidInt : ds.getAllLocalBucketIds()) { |
| int bid = bidInt.intValue(); |
| long bucketSize = ds.getBucketSize(bid); |
| if (bucketSize < MIN_BUCKET_SIZE) { |
| bucketSize = MIN_BUCKET_SIZE; |
| } |
| |
| BucketAdvisor bucketAdvisor = pr.getRegionAdvisor().getBucket(bid).getBucketAdvisor(); |
| // Wait for a primary to exist for this bucket, because |
| // it might be this member. |
| bucketAdvisor.getPrimary(); |
| boolean isPrimary = pr.getRegionAdvisor().getBucket(bid).getBucketAdvisor().isPrimary(); |
| prLoad.addBucket(bid, bucketSize, isPrimary ? 1 : 0); |
| } |
| |
| return prLoad; |
| } |
| |
| @Override |
| public void fromData(DataInput in, |
| DeserializationContext context) throws IOException, ClassNotFoundException {} |
| |
| @Override |
| public void toData(DataOutput out, |
| SerializationContext context) throws IOException {} |
| |
| @Override |
| public int getDSFID() { |
| return SIZED_BASED_LOAD_PROBE; |
| } |
| |
| @Override |
| public Version[] getSerializationVersions() { |
| // TODO Auto-generated method stub |
| return null; |
| } |
| |
| } |