| /* |
| * 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.commit; |
| |
| import org.apache.hudi.client.WriteStatus; |
| import org.apache.hudi.client.common.HoodieEngineContext; |
| import org.apache.hudi.client.common.HoodieSparkEngineContext; |
| import org.apache.hudi.common.model.EmptyHoodieRecordPayload; |
| import org.apache.hudi.common.model.HoodieKey; |
| import org.apache.hudi.common.model.HoodieRecord; |
| import org.apache.hudi.common.model.HoodieRecordPayload; |
| import org.apache.hudi.common.util.collection.Pair; |
| import org.apache.hudi.config.HoodieWriteConfig; |
| import org.apache.hudi.exception.HoodieUpsertException; |
| import org.apache.hudi.table.HoodieTable; |
| import org.apache.hudi.table.WorkloadProfile; |
| import org.apache.hudi.table.WorkloadStat; |
| import org.apache.hudi.table.action.HoodieWriteMetadata; |
| |
| import org.apache.spark.api.java.JavaRDD; |
| import org.apache.spark.api.java.JavaSparkContext; |
| |
| import java.time.Duration; |
| import java.time.Instant; |
| import java.util.HashMap; |
| |
| /** |
| * A spark implementation of {@link AbstractDeleteHelper}. |
| * |
| * @param <T> |
| */ |
| @SuppressWarnings("checkstyle:LineLength") |
| public class SparkDeleteHelper<T extends HoodieRecordPayload,R> extends |
| AbstractDeleteHelper<T, JavaRDD<HoodieRecord<T>>, JavaRDD<HoodieKey>, JavaRDD<WriteStatus>, R> { |
| private SparkDeleteHelper() { |
| } |
| |
| private static class DeleteHelperHolder { |
| private static final SparkDeleteHelper SPARK_DELETE_HELPER = new SparkDeleteHelper(); |
| } |
| |
| public static SparkDeleteHelper newInstance() { |
| return DeleteHelperHolder.SPARK_DELETE_HELPER; |
| } |
| |
| @Override |
| public JavaRDD<HoodieKey> deduplicateKeys(JavaRDD<HoodieKey> keys, HoodieTable<T, JavaRDD<HoodieRecord<T>>, JavaRDD<HoodieKey>, JavaRDD<WriteStatus>> table, int parallelism) { |
| boolean isIndexingGlobal = table.getIndex().isGlobal(); |
| if (isIndexingGlobal) { |
| return keys.keyBy(HoodieKey::getRecordKey) |
| .reduceByKey((key1, key2) -> key1, parallelism) |
| .values(); |
| } else { |
| return keys.distinct(parallelism); |
| } |
| } |
| |
| @Override |
| public HoodieWriteMetadata<JavaRDD<WriteStatus>> execute(String instantTime, |
| JavaRDD<HoodieKey> keys, |
| HoodieEngineContext context, |
| HoodieWriteConfig config, |
| HoodieTable<T, JavaRDD<HoodieRecord<T>>, JavaRDD<HoodieKey>, JavaRDD<WriteStatus>> table, |
| BaseCommitActionExecutor<T, JavaRDD<HoodieRecord<T>>, JavaRDD<HoodieKey>, JavaRDD<WriteStatus>, R> deleteExecutor) { |
| JavaSparkContext jsc = HoodieSparkEngineContext.getSparkContext(context); |
| |
| try { |
| HoodieWriteMetadata result = null; |
| JavaRDD<HoodieKey> dedupedKeys = keys; |
| final int parallelism = config.getDeleteShuffleParallelism(); |
| if (config.shouldCombineBeforeDelete()) { |
| // De-dupe/merge if needed |
| dedupedKeys = deduplicateKeys(keys, table, parallelism); |
| } else if (!keys.partitions().isEmpty()) { |
| dedupedKeys = keys.repartition(parallelism); |
| } |
| |
| JavaRDD<HoodieRecord<T>> dedupedRecords = |
| dedupedKeys.map(key -> new HoodieRecord(key, new EmptyHoodieRecordPayload())); |
| Instant beginTag = Instant.now(); |
| // perform index loop up to get existing location of records |
| JavaRDD<HoodieRecord<T>> taggedRecords = |
| table.getIndex().tagLocation(dedupedRecords, context, table); |
| Duration tagLocationDuration = Duration.between(beginTag, Instant.now()); |
| |
| // filter out non existent keys/records |
| JavaRDD<HoodieRecord<T>> taggedValidRecords = taggedRecords.filter(HoodieRecord::isCurrentLocationKnown); |
| if (!taggedValidRecords.isEmpty()) { |
| result = deleteExecutor.execute(taggedValidRecords); |
| result.setIndexLookupDuration(tagLocationDuration); |
| } else { |
| // if entire set of keys are non existent |
| deleteExecutor.saveWorkloadProfileMetadataToInflight(new WorkloadProfile(Pair.of(new HashMap<>(), new WorkloadStat())), instantTime); |
| result = new HoodieWriteMetadata(); |
| result.setWriteStatuses(jsc.emptyRDD()); |
| deleteExecutor.commitOnAutoCommit(result); |
| } |
| return result; |
| } catch (Throwable e) { |
| if (e instanceof HoodieUpsertException) { |
| throw (HoodieUpsertException) e; |
| } |
| throw new HoodieUpsertException("Failed to delete for commit time " + instantTime, e); |
| } |
| } |
| |
| } |