ankitsultana commented on code in PR #13347: URL: https://github.com/apache/pinot/pull/13347#discussion_r1683559146
########## pinot-segment-local/src/main/java/org/apache/pinot/segment/local/upsert/ConcurrentMapPartitionUpsertMetadataManagerForConsistentDeletes.java: ########## @@ -0,0 +1,373 @@ +/** + * 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.pinot.segment.local.upsert; + +import com.google.common.annotations.VisibleForTesting; +import java.util.HashMap; +import java.util.HashSet; +import java.util.Iterator; +import java.util.Map; +import java.util.Objects; +import java.util.Set; +import java.util.concurrent.ConcurrentHashMap; +import java.util.concurrent.atomic.AtomicBoolean; +import java.util.concurrent.atomic.AtomicInteger; +import javax.annotation.Nullable; +import javax.annotation.concurrent.ThreadSafe; +import org.apache.pinot.common.metrics.ServerMeter; +import org.apache.pinot.segment.local.indexsegment.immutable.ImmutableSegmentImpl; +import org.apache.pinot.segment.local.segment.readers.LazyRow; +import org.apache.pinot.segment.local.utils.HashUtils; +import org.apache.pinot.segment.spi.ImmutableSegment; +import org.apache.pinot.segment.spi.IndexSegment; +import org.apache.pinot.segment.spi.MutableSegment; +import org.apache.pinot.segment.spi.index.mutable.ThreadSafeMutableRoaringBitmap; +import org.apache.pinot.spi.data.readers.GenericRow; +import org.apache.pinot.spi.data.readers.PrimaryKey; +import org.roaringbitmap.buffer.MutableRoaringBitmap; + + +/** + * Implementation of {@link PartitionUpsertMetadataManager} that is backed by a {@link ConcurrentHashMap} and ensures + * consistent deletions. This should be used when the table is configured with 'consistentDeletes' set to true. + */ +@SuppressWarnings({"rawtypes", "unchecked"}) +@ThreadSafe +public class ConcurrentMapPartitionUpsertMetadataManagerForConsistentDeletes + extends BasePartitionUpsertMetadataManager { + + @VisibleForTesting + final ConcurrentHashMap<Object, ConcurrentMapPartitionUpsertMetadataManagerForConsistentDeletes.RecordLocation> + _primaryKeyToRecordLocationMap = new ConcurrentHashMap<>(); + // Used to initialize a reference to previous row for merging in partial upsert + private final LazyRow _reusePreviousRow = new LazyRow(); + private final Map<String, Object> _reuseMergeResultHolder = new HashMap<>(); + + public ConcurrentMapPartitionUpsertMetadataManagerForConsistentDeletes(String tableNameWithType, int partitionId, Review Comment: @Jackie-Jiang : just wanted to confirm, you folks are okay with creating a new metadata manager for handling deletes? -- 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. To unsubscribe, e-mail: commits-unsubscr...@pinot.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@pinot.apache.org For additional commands, e-mail: commits-h...@pinot.apache.org
