satishkotha commented on a change in pull request #2263: URL: https://github.com/apache/hudi/pull/2263#discussion_r545554494
########## File path: hudi-client/hudi-client-common/src/main/java/org/apache/hudi/table/action/cluster/strategy/ScheduleClusteringStrategy.java ########## @@ -0,0 +1,149 @@ +/* + * 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.hudi.table.action.cluster.strategy; + +import org.apache.hudi.avro.model.HoodieClusteringPlan; +import org.apache.hudi.avro.model.HoodieSliceInfo; +import org.apache.hudi.client.common.HoodieEngineContext; +import org.apache.hudi.common.model.BaseFile; +import org.apache.hudi.common.model.FileSlice; +import org.apache.hudi.common.model.HoodieBaseFile; +import org.apache.hudi.common.model.HoodieFileGroupId; +import org.apache.hudi.common.model.HoodieRecordPayload; +import org.apache.hudi.common.table.view.SyncableFileSystemView; +import org.apache.hudi.common.util.FileSliceUtils; +import org.apache.hudi.common.util.Option; +import org.apache.hudi.common.util.StringUtils; +import org.apache.hudi.common.util.collection.Pair; +import org.apache.hudi.config.HoodieWriteConfig; +import org.apache.hudi.table.HoodieTable; +import org.apache.log4j.LogManager; +import org.apache.log4j.Logger; + +import java.io.Serializable; +import java.util.Collections; +import java.util.HashMap; +import java.util.List; +import java.util.Map; +import java.util.Set; +import java.util.stream.Collectors; + +/** + * Pluggable implementation for scheduling clustering and creating ClusteringPlan. + */ +public abstract class ScheduleClusteringStrategy<T extends HoodieRecordPayload,I,K,O> implements Serializable { + private static final Logger LOG = LogManager.getLogger(ScheduleClusteringStrategy.class); + + public static final int CLUSTERING_PLAN_VERSION_1 = 1; + + private final HoodieTable<T,I,K,O> hoodieTable; + private final HoodieEngineContext engineContext; + private final HoodieWriteConfig writeConfig; + + public ScheduleClusteringStrategy(HoodieTable table, HoodieEngineContext engineContext, HoodieWriteConfig writeConfig) { + this.writeConfig = writeConfig; + this.hoodieTable = table; + this.engineContext = engineContext; + } + + /** + * Generate metadata for grouping eligible files and create a plan. Note that data is not moved around + * as part of this step. + * + * If there is no data available to cluster, return None. + */ + public abstract Option<HoodieClusteringPlan> generateClusteringPlan(); + + /** + * Return file slices eligible for clustering. FileIds in + * 1) pending clustering/compaction + * 2) Larger than clustering target file size Review comment: Moved 2 to strategy specific implementation. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected]
