klsince commented on code in PR #13347:
URL: https://github.com/apache/pinot/pull/13347#discussion_r1700864392
##########
pinot-segment-local/src/main/java/org/apache/pinot/segment/local/upsert/TableUpsertMetadataManagerFactory.java:
##########
@@ -29,16 +29,15 @@
public class TableUpsertMetadataManagerFactory {
- private TableUpsertMetadataManagerFactory() {
- }
-
- private static final Logger LOGGER =
LoggerFactory.getLogger(TableUpsertMetadataManagerFactory.class);
public static final String UPSERT_DEFAULT_METADATA_MANAGER_CLASS =
"default.metadata.manager.class";
public static final String UPSERT_DEFAULT_ENABLE_SNAPSHOT =
"default.enable.snapshot";
public static final String UPSERT_DEFAULT_ENABLE_PRELOAD =
"default.enable.preload";
-
public static final String
UPSERT_DEFAULT_ALLOW_PARTIAL_UPSERT_CONSUMPTION_DURING_COMMIT =
"default.allow.partial.upsert.consumption.during.commit";
+ private static final Logger LOGGER =
LoggerFactory.getLogger(TableUpsertMetadataManagerFactory.class);
Review Comment:
no need to touch this class if we use metadataManagerClass to enable the new
feature
##########
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
Review Comment:
perhaps add more comments to explain what's `consistent deletions`, which is
to make compaction task works correctly with deletedKeysTTL, so that compaction
removes the deletion tombstone records only after all the previous records of
the same PK are removed
##########
pinot-segment-local/src/main/java/org/apache/pinot/segment/local/upsert/BaseTableUpsertMetadataManager.java:
##########
@@ -81,6 +81,8 @@ public void init(TableConfig tableConfig, Schema schema,
TableDataManager tableD
.setPartialUpsertHandler(partialUpsertHandler).setEnableSnapshot(enableSnapshot).setEnablePreload(enablePreload)
.setMetadataTTL(metadataTTL).setDeletedKeysTTL(deletedKeysTTL).setConsistencyMode(_consistencyMode)
.setUpsertViewRefreshIntervalMs(upsertViewRefreshIntervalMs).setTableIndexDir(tableIndexDir)
+ .setDropOutOfOrderRecord(upsertConfig.isDropOutOfOrderRecord())
+ .setEnableConsistentDeletes(upsertConfig.isEnableConsistentDeletes())
Review Comment:
this upsert config may be used as the feature flag: `metadataManagerClass` ,
so we don't need to add a new one
##########
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,
+ UpsertContext context) {
+ super(tableNameWithType, partitionId, context);
+ }
+
+ @Override
+ protected long getNumPrimaryKeys() {
+ return _primaryKeyToRecordLocationMap.size();
+ }
+
+ @Override
+ protected void doAddOrReplaceSegment(ImmutableSegmentImpl segment,
ThreadSafeMutableRoaringBitmap validDocIds,
+ @Nullable ThreadSafeMutableRoaringBitmap queryableDocIds,
Iterator<RecordInfo> recordInfoIterator,
+ @Nullable IndexSegment oldSegment, @Nullable MutableRoaringBitmap
validDocIdsForOldSegment) {
+ String segmentName = segment.getSegmentName();
+ segment.enableUpsert(this, validDocIds, queryableDocIds);
+
+ AtomicInteger numKeysInWrongSegment = new AtomicInteger();
+ while (recordInfoIterator.hasNext()) {
+ RecordInfo recordInfo = recordInfoIterator.next();
+ int newDocId = recordInfo.getDocId();
+ Comparable newComparisonValue = recordInfo.getComparisonValue();
+
_primaryKeyToRecordLocationMap.compute(HashUtils.hashPrimaryKey(recordInfo.getPrimaryKey(),
_hashFunction),
+ (primaryKey, currentRecordLocation) -> {
+ if (currentRecordLocation != null) {
+ // Existing primary key
+ IndexSegment currentSegment = currentRecordLocation.getSegment();
+ int currentDocId = currentRecordLocation.getDocId();
+ Comparable currentComparisonValue =
currentRecordLocation.getComparisonValue();
+ int comparisonResult =
newComparisonValue.compareTo(currentComparisonValue);
+ int currentDistinctSegmentCount =
currentRecordLocation.getDistinctSegmentCount();
+
+ // The current record is in the same segment
+ // Update the record location when there is a tie to keep the
newer record. Note that the record info
+ // iterator will return records with incremental doc ids.
+ if (currentSegment == segment) {
+ if (comparisonResult >= 0) {
+ replaceDocId(segment, validDocIds, queryableDocIds,
currentDocId, newDocId, recordInfo);
+ return new
ConcurrentMapPartitionUpsertMetadataManagerForConsistentDeletes.RecordLocation(segment,
+ newDocId, newComparisonValue,
currentDistinctSegmentCount);
+ } else {
+ return currentRecordLocation;
+ }
+ }
+
+ // The current record is in an old segment being replaced
+ // This could happen when committing a consuming segment, or
reloading a completed segment. In this
+ // case, we want to update the record location when there is a
tie because the record locations should
+ // point to the new added segment instead of the old segment
being replaced. Also, do not update the valid
+ // doc ids for the old segment because it has not been replaced
yet. We pass in an optional valid doc ids
+ // snapshot for the old segment, which can be updated and used
to track the docs not replaced yet.
+ if (currentSegment == oldSegment) {
+ if (comparisonResult >= 0) {
+ addDocId(segment, validDocIds, queryableDocIds, newDocId,
recordInfo);
+ if (validDocIdsForOldSegment != null) {
+ validDocIdsForOldSegment.remove(currentDocId);
+ }
+ return new RecordLocation(segment, newDocId,
newComparisonValue, currentDistinctSegmentCount + 1);
+ } else {
+ return new RecordLocation(currentSegment, currentDocId,
currentComparisonValue,
+ currentDistinctSegmentCount + 1);
+ }
+ }
+
+ // This should not happen because the previously replaced
segment should have all keys removed. We still
+ // handle it here, and also track the number of keys not
properly replaced previously.
+ String currentSegmentName = currentSegment.getSegmentName();
+ if (currentSegmentName.equals(segmentName)) {
+ numKeysInWrongSegment.getAndIncrement();
+ if (comparisonResult >= 0) {
+ addDocId(segment, validDocIds, queryableDocIds, newDocId,
recordInfo);
+ return new RecordLocation(segment, newDocId,
newComparisonValue, currentDistinctSegmentCount + 1);
+ } else {
+ return currentRecordLocation;
+ }
+ }
+
+ // The current record is in a different segment
+ // Update the record location when getting a newer comparison
value, or the value is the same as the
+ // current value, but the segment has a larger sequence number
(the segment is newer than the current
+ // segment).
+ if (comparisonResult > 0 || (comparisonResult == 0 &&
shouldReplaceOnComparisonTie(segmentName,
+ currentSegmentName,
segment.getSegmentMetadata().getIndexCreationTime(),
+
currentSegment.getSegmentMetadata().getIndexCreationTime()))) {
+ replaceDocId(segment, validDocIds, queryableDocIds,
currentSegment, currentDocId, newDocId, recordInfo);
+ return new RecordLocation(segment, newDocId,
newComparisonValue, currentDistinctSegmentCount + 1);
+ } else {
+ return new RecordLocation(currentSegment, currentDocId,
currentComparisonValue,
+ currentDistinctSegmentCount + 1);
+ }
+ } else {
+ // New primary key
+ addDocId(segment, validDocIds, queryableDocIds, newDocId,
recordInfo);
+ return new RecordLocation(segment, newDocId, newComparisonValue,
1);
+ }
+ });
+ }
+ int numKeys = numKeysInWrongSegment.get();
+ if (numKeys > 0) {
+ _logger.warn("Found {} primary keys in the wrong segment when adding
segment: {}", numKeys, segmentName);
+ _serverMetrics.addMeteredTableValue(_tableNameWithType,
ServerMeter.UPSERT_KEYS_IN_WRONG_SEGMENT, numKeys);
+ }
+ }
+
+ @Override
+ protected void addSegmentWithoutUpsert(ImmutableSegmentImpl segment,
ThreadSafeMutableRoaringBitmap validDocIds,
+ @Nullable ThreadSafeMutableRoaringBitmap queryableDocIds,
Iterator<RecordInfo> recordInfoIterator) {
+ segment.enableUpsert(this, validDocIds, queryableDocIds);
Review Comment:
throw unsupported exception as you explained in the PR description?
##########
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,
+ UpsertContext context) {
+ super(tableNameWithType, partitionId, context);
+ }
+
+ @Override
+ protected long getNumPrimaryKeys() {
+ return _primaryKeyToRecordLocationMap.size();
+ }
+
+ @Override
+ protected void doAddOrReplaceSegment(ImmutableSegmentImpl segment,
ThreadSafeMutableRoaringBitmap validDocIds,
+ @Nullable ThreadSafeMutableRoaringBitmap queryableDocIds,
Iterator<RecordInfo> recordInfoIterator,
+ @Nullable IndexSegment oldSegment, @Nullable MutableRoaringBitmap
validDocIdsForOldSegment) {
+ String segmentName = segment.getSegmentName();
+ segment.enableUpsert(this, validDocIds, queryableDocIds);
+
+ AtomicInteger numKeysInWrongSegment = new AtomicInteger();
+ while (recordInfoIterator.hasNext()) {
+ RecordInfo recordInfo = recordInfoIterator.next();
+ int newDocId = recordInfo.getDocId();
+ Comparable newComparisonValue = recordInfo.getComparisonValue();
+
_primaryKeyToRecordLocationMap.compute(HashUtils.hashPrimaryKey(recordInfo.getPrimaryKey(),
_hashFunction),
+ (primaryKey, currentRecordLocation) -> {
+ if (currentRecordLocation != null) {
+ // Existing primary key
+ IndexSegment currentSegment = currentRecordLocation.getSegment();
+ int currentDocId = currentRecordLocation.getDocId();
+ Comparable currentComparisonValue =
currentRecordLocation.getComparisonValue();
+ int comparisonResult =
newComparisonValue.compareTo(currentComparisonValue);
+ int currentDistinctSegmentCount =
currentRecordLocation.getDistinctSegmentCount();
+
+ // The current record is in the same segment
+ // Update the record location when there is a tie to keep the
newer record. Note that the record info
+ // iterator will return records with incremental doc ids.
+ if (currentSegment == segment) {
+ if (comparisonResult >= 0) {
+ replaceDocId(segment, validDocIds, queryableDocIds,
currentDocId, newDocId, recordInfo);
+ return new
ConcurrentMapPartitionUpsertMetadataManagerForConsistentDeletes.RecordLocation(segment,
+ newDocId, newComparisonValue,
currentDistinctSegmentCount);
+ } else {
+ return currentRecordLocation;
+ }
+ }
+
+ // The current record is in an old segment being replaced
+ // This could happen when committing a consuming segment, or
reloading a completed segment. In this
+ // case, we want to update the record location when there is a
tie because the record locations should
+ // point to the new added segment instead of the old segment
being replaced. Also, do not update the valid
+ // doc ids for the old segment because it has not been replaced
yet. We pass in an optional valid doc ids
+ // snapshot for the old segment, which can be updated and used
to track the docs not replaced yet.
+ if (currentSegment == oldSegment) {
+ if (comparisonResult >= 0) {
+ addDocId(segment, validDocIds, queryableDocIds, newDocId,
recordInfo);
+ if (validDocIdsForOldSegment != null) {
+ validDocIdsForOldSegment.remove(currentDocId);
+ }
+ return new RecordLocation(segment, newDocId,
newComparisonValue, currentDistinctSegmentCount + 1);
+ } else {
+ return new RecordLocation(currentSegment, currentDocId,
currentComparisonValue,
+ currentDistinctSegmentCount + 1);
+ }
+ }
+
+ // This should not happen because the previously replaced
segment should have all keys removed. We still
+ // handle it here, and also track the number of keys not
properly replaced previously.
+ String currentSegmentName = currentSegment.getSegmentName();
+ if (currentSegmentName.equals(segmentName)) {
+ numKeysInWrongSegment.getAndIncrement();
+ if (comparisonResult >= 0) {
+ addDocId(segment, validDocIds, queryableDocIds, newDocId,
recordInfo);
+ return new RecordLocation(segment, newDocId,
newComparisonValue, currentDistinctSegmentCount + 1);
+ } else {
+ return currentRecordLocation;
+ }
+ }
+
+ // The current record is in a different segment
+ // Update the record location when getting a newer comparison
value, or the value is the same as the
+ // current value, but the segment has a larger sequence number
(the segment is newer than the current
+ // segment).
+ if (comparisonResult > 0 || (comparisonResult == 0 &&
shouldReplaceOnComparisonTie(segmentName,
+ currentSegmentName,
segment.getSegmentMetadata().getIndexCreationTime(),
+
currentSegment.getSegmentMetadata().getIndexCreationTime()))) {
+ replaceDocId(segment, validDocIds, queryableDocIds,
currentSegment, currentDocId, newDocId, recordInfo);
+ return new RecordLocation(segment, newDocId,
newComparisonValue, currentDistinctSegmentCount + 1);
+ } else {
+ return new RecordLocation(currentSegment, currentDocId,
currentComparisonValue,
+ currentDistinctSegmentCount + 1);
+ }
+ } else {
+ // New primary key
+ addDocId(segment, validDocIds, queryableDocIds, newDocId,
recordInfo);
+ return new RecordLocation(segment, newDocId, newComparisonValue,
1);
+ }
+ });
+ }
+ int numKeys = numKeysInWrongSegment.get();
+ if (numKeys > 0) {
+ _logger.warn("Found {} primary keys in the wrong segment when adding
segment: {}", numKeys, segmentName);
+ _serverMetrics.addMeteredTableValue(_tableNameWithType,
ServerMeter.UPSERT_KEYS_IN_WRONG_SEGMENT, numKeys);
+ }
+ }
+
+ @Override
+ protected void addSegmentWithoutUpsert(ImmutableSegmentImpl segment,
ThreadSafeMutableRoaringBitmap validDocIds,
+ @Nullable ThreadSafeMutableRoaringBitmap queryableDocIds,
Iterator<RecordInfo> recordInfoIterator) {
+ segment.enableUpsert(this, validDocIds, queryableDocIds);
+ while (recordInfoIterator.hasNext()) {
+ RecordInfo recordInfo = recordInfoIterator.next();
+ int newDocId = recordInfo.getDocId();
+ Comparable newComparisonValue = recordInfo.getComparisonValue();
+ addDocId(segment, validDocIds, queryableDocIds, newDocId, recordInfo);
+
_primaryKeyToRecordLocationMap.put(HashUtils.hashPrimaryKey(recordInfo.getPrimaryKey(),
_hashFunction),
+ new RecordLocation(segment, newDocId, newComparisonValue, 1));
+ }
+ }
+
+ @Override
+ protected void doRemoveSegment(IndexSegment segment) {
+ String segmentName = segment.getSegmentName();
+ _logger.info("Removing {} segment: {}, current primary key count: {}",
+ segment instanceof ImmutableSegment ? "immutable" : "mutable",
segmentName, getNumPrimaryKeys());
+ long startTimeMs = System.currentTimeMillis();
+
+ try (
+ UpsertUtils.PrimaryKeyReader primaryKeyReader = new
UpsertUtils.PrimaryKeyReader(segment, _primaryKeyColumns)) {
+ removeSegment(segment,
+ UpsertUtils.getPrimaryKeyIterator(primaryKeyReader,
segment.getSegmentMetadata().getTotalDocs()));
+ } catch (Exception e) {
+ throw new RuntimeException(
+ String.format("Caught exception while removing segment: %s, table:
%s", segment.getSegmentName(),
+ _tableNameWithType), e);
+ }
+
+ // Update metrics
+ long numPrimaryKeys = getNumPrimaryKeys();
+ updatePrimaryKeyGauge(numPrimaryKeys);
+ _logger.info("Finished removing segment: {} in {}ms, current primary key
count: {}", segmentName,
+ System.currentTimeMillis() - startTimeMs, numPrimaryKeys);
+ }
+
+ @Override
+ protected void removeSegment(IndexSegment segment, Iterator<PrimaryKey>
primaryKeyIterator) {
+ Set<Object> deDuplicatedPrimaryKeys = new HashSet<>();
+ while (primaryKeyIterator.hasNext()) {
+ PrimaryKey primaryKey = primaryKeyIterator.next();
+
_primaryKeyToRecordLocationMap.computeIfPresent(HashUtils.hashPrimaryKey(primaryKey,
_hashFunction),
+ (pk, recordLocation) -> {
+ if (deDuplicatedPrimaryKeys.contains(pk)) {
+ return recordLocation;
+ }
+ deDuplicatedPrimaryKeys.add(pk);
+ if (recordLocation.getSegment() == segment) {
+ return null;
+ }
+ return new RecordLocation(recordLocation.getSegment(),
recordLocation.getDocId(),
+ recordLocation.getComparisonValue(),
recordLocation.getDistinctSegmentCount() - 1);
Review Comment:
add util method to +1 and -1 inside RecordLocation class to make it easier
to check where they are called.
##########
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,
+ UpsertContext context) {
+ super(tableNameWithType, partitionId, context);
+ }
+
+ @Override
+ protected long getNumPrimaryKeys() {
+ return _primaryKeyToRecordLocationMap.size();
+ }
+
+ @Override
+ protected void doAddOrReplaceSegment(ImmutableSegmentImpl segment,
ThreadSafeMutableRoaringBitmap validDocIds,
+ @Nullable ThreadSafeMutableRoaringBitmap queryableDocIds,
Iterator<RecordInfo> recordInfoIterator,
+ @Nullable IndexSegment oldSegment, @Nullable MutableRoaringBitmap
validDocIdsForOldSegment) {
+ String segmentName = segment.getSegmentName();
+ segment.enableUpsert(this, validDocIds, queryableDocIds);
+
+ AtomicInteger numKeysInWrongSegment = new AtomicInteger();
+ while (recordInfoIterator.hasNext()) {
+ RecordInfo recordInfo = recordInfoIterator.next();
+ int newDocId = recordInfo.getDocId();
+ Comparable newComparisonValue = recordInfo.getComparisonValue();
+
_primaryKeyToRecordLocationMap.compute(HashUtils.hashPrimaryKey(recordInfo.getPrimaryKey(),
_hashFunction),
+ (primaryKey, currentRecordLocation) -> {
+ if (currentRecordLocation != null) {
+ // Existing primary key
+ IndexSegment currentSegment = currentRecordLocation.getSegment();
+ int currentDocId = currentRecordLocation.getDocId();
+ Comparable currentComparisonValue =
currentRecordLocation.getComparisonValue();
+ int comparisonResult =
newComparisonValue.compareTo(currentComparisonValue);
+ int currentDistinctSegmentCount =
currentRecordLocation.getDistinctSegmentCount();
+
+ // The current record is in the same segment
+ // Update the record location when there is a tie to keep the
newer record. Note that the record info
+ // iterator will return records with incremental doc ids.
+ if (currentSegment == segment) {
+ if (comparisonResult >= 0) {
+ replaceDocId(segment, validDocIds, queryableDocIds,
currentDocId, newDocId, recordInfo);
+ return new
ConcurrentMapPartitionUpsertMetadataManagerForConsistentDeletes.RecordLocation(segment,
+ newDocId, newComparisonValue,
currentDistinctSegmentCount);
+ } else {
+ return currentRecordLocation;
+ }
+ }
+
+ // The current record is in an old segment being replaced
+ // This could happen when committing a consuming segment, or
reloading a completed segment. In this
+ // case, we want to update the record location when there is a
tie because the record locations should
+ // point to the new added segment instead of the old segment
being replaced. Also, do not update the valid
+ // doc ids for the old segment because it has not been replaced
yet. We pass in an optional valid doc ids
+ // snapshot for the old segment, which can be updated and used
to track the docs not replaced yet.
+ if (currentSegment == oldSegment) {
+ if (comparisonResult >= 0) {
+ addDocId(segment, validDocIds, queryableDocIds, newDocId,
recordInfo);
+ if (validDocIdsForOldSegment != null) {
+ validDocIdsForOldSegment.remove(currentDocId);
+ }
+ return new RecordLocation(segment, newDocId,
newComparisonValue, currentDistinctSegmentCount + 1);
+ } else {
+ return new RecordLocation(currentSegment, currentDocId,
currentComparisonValue,
+ currentDistinctSegmentCount + 1);
+ }
+ }
+
+ // This should not happen because the previously replaced
segment should have all keys removed. We still
+ // handle it here, and also track the number of keys not
properly replaced previously.
+ String currentSegmentName = currentSegment.getSegmentName();
+ if (currentSegmentName.equals(segmentName)) {
+ numKeysInWrongSegment.getAndIncrement();
+ if (comparisonResult >= 0) {
+ addDocId(segment, validDocIds, queryableDocIds, newDocId,
recordInfo);
+ return new RecordLocation(segment, newDocId,
newComparisonValue, currentDistinctSegmentCount + 1);
+ } else {
+ return currentRecordLocation;
+ }
+ }
+
+ // The current record is in a different segment
+ // Update the record location when getting a newer comparison
value, or the value is the same as the
+ // current value, but the segment has a larger sequence number
(the segment is newer than the current
+ // segment).
+ if (comparisonResult > 0 || (comparisonResult == 0 &&
shouldReplaceOnComparisonTie(segmentName,
+ currentSegmentName,
segment.getSegmentMetadata().getIndexCreationTime(),
+
currentSegment.getSegmentMetadata().getIndexCreationTime()))) {
+ replaceDocId(segment, validDocIds, queryableDocIds,
currentSegment, currentDocId, newDocId, recordInfo);
+ return new RecordLocation(segment, newDocId,
newComparisonValue, currentDistinctSegmentCount + 1);
+ } else {
+ return new RecordLocation(currentSegment, currentDocId,
currentComparisonValue,
+ currentDistinctSegmentCount + 1);
+ }
+ } else {
+ // New primary key
+ addDocId(segment, validDocIds, queryableDocIds, newDocId,
recordInfo);
+ return new RecordLocation(segment, newDocId, newComparisonValue,
1);
+ }
+ });
+ }
+ int numKeys = numKeysInWrongSegment.get();
+ if (numKeys > 0) {
+ _logger.warn("Found {} primary keys in the wrong segment when adding
segment: {}", numKeys, segmentName);
+ _serverMetrics.addMeteredTableValue(_tableNameWithType,
ServerMeter.UPSERT_KEYS_IN_WRONG_SEGMENT, numKeys);
+ }
+ }
+
+ @Override
+ protected void addSegmentWithoutUpsert(ImmutableSegmentImpl segment,
ThreadSafeMutableRoaringBitmap validDocIds,
+ @Nullable ThreadSafeMutableRoaringBitmap queryableDocIds,
Iterator<RecordInfo> recordInfoIterator) {
+ segment.enableUpsert(this, validDocIds, queryableDocIds);
+ while (recordInfoIterator.hasNext()) {
+ RecordInfo recordInfo = recordInfoIterator.next();
+ int newDocId = recordInfo.getDocId();
+ Comparable newComparisonValue = recordInfo.getComparisonValue();
+ addDocId(segment, validDocIds, queryableDocIds, newDocId, recordInfo);
+
_primaryKeyToRecordLocationMap.put(HashUtils.hashPrimaryKey(recordInfo.getPrimaryKey(),
_hashFunction),
+ new RecordLocation(segment, newDocId, newComparisonValue, 1));
+ }
+ }
+
+ @Override
+ protected void doRemoveSegment(IndexSegment segment) {
+ String segmentName = segment.getSegmentName();
+ _logger.info("Removing {} segment: {}, current primary key count: {}",
+ segment instanceof ImmutableSegment ? "immutable" : "mutable",
segmentName, getNumPrimaryKeys());
+ long startTimeMs = System.currentTimeMillis();
+
+ try (
+ UpsertUtils.PrimaryKeyReader primaryKeyReader = new
UpsertUtils.PrimaryKeyReader(segment, _primaryKeyColumns)) {
+ removeSegment(segment,
+ UpsertUtils.getPrimaryKeyIterator(primaryKeyReader,
segment.getSegmentMetadata().getTotalDocs()));
+ } catch (Exception e) {
+ throw new RuntimeException(
+ String.format("Caught exception while removing segment: %s, table:
%s", segment.getSegmentName(),
+ _tableNameWithType), e);
+ }
+
+ // Update metrics
+ long numPrimaryKeys = getNumPrimaryKeys();
+ updatePrimaryKeyGauge(numPrimaryKeys);
+ _logger.info("Finished removing segment: {} in {}ms, current primary key
count: {}", segmentName,
+ System.currentTimeMillis() - startTimeMs, numPrimaryKeys);
+ }
+
+ @Override
+ protected void removeSegment(IndexSegment segment, Iterator<PrimaryKey>
primaryKeyIterator) {
+ Set<Object> deDuplicatedPrimaryKeys = new HashSet<>();
+ while (primaryKeyIterator.hasNext()) {
+ PrimaryKey primaryKey = primaryKeyIterator.next();
+
_primaryKeyToRecordLocationMap.computeIfPresent(HashUtils.hashPrimaryKey(primaryKey,
_hashFunction),
+ (pk, recordLocation) -> {
+ if (deDuplicatedPrimaryKeys.contains(pk)) {
+ return recordLocation;
+ }
+ deDuplicatedPrimaryKeys.add(pk);
+ if (recordLocation.getSegment() == segment) {
+ return null;
+ }
+ return new RecordLocation(recordLocation.getSegment(),
recordLocation.getDocId(),
+ recordLocation.getComparisonValue(),
recordLocation.getDistinctSegmentCount() - 1);
+ });
+ }
+ }
+
+ @Override
+ public void doRemoveExpiredPrimaryKeys() {
+ AtomicInteger numDeletedTTLKeysRemoved = new AtomicInteger();
+ double largestSeenComparisonValue = _largestSeenComparisonValue.get();
+ double deletedKeysThreshold;
+ if (_deletedKeysTTL > 0) {
+ deletedKeysThreshold = largestSeenComparisonValue - _deletedKeysTTL;
+ } else {
+ deletedKeysThreshold = Double.MIN_VALUE;
+ }
+
+ _primaryKeyToRecordLocationMap.forEach((primaryKey, recordLocation) -> {
+ double comparisonValue = ((Number)
recordLocation.getComparisonValue()).doubleValue();
+ if (_deletedKeysTTL > 0 && comparisonValue < deletedKeysThreshold
+ && recordLocation.getDistinctSegmentCount() <= 1) {
+ ThreadSafeMutableRoaringBitmap currentQueryableDocIds =
recordLocation.getSegment().getQueryableDocIds();
+ // if key not part of queryable doc id, it means it is deleted
+ if (currentQueryableDocIds != null &&
!currentQueryableDocIds.contains(recordLocation.getDocId())) {
+ _primaryKeyToRecordLocationMap.remove(primaryKey, recordLocation);
+ removeDocId(recordLocation.getSegment(), recordLocation.getDocId());
+ numDeletedTTLKeysRemoved.getAndIncrement();
+ }
+ }
+ });
+
+ // Update metrics
+ updatePrimaryKeyGauge();
+ int numDeletedTTLKeys = numDeletedTTLKeysRemoved.get();
+ if (numDeletedTTLKeys > 0) {
+ _logger.info("Deleted {} primary keys based on deletedKeysTTL",
numDeletedTTLKeys);
+ _serverMetrics.addMeteredTableValue(_tableNameWithType,
ServerMeter.DELETED_KEYS_TTL_PRIMARY_KEYS_REMOVED,
+ numDeletedTTLKeys);
+ }
+ }
+
+ @Override
+ protected boolean doAddRecord(MutableSegment segment, RecordInfo recordInfo)
{
+ AtomicBoolean isOutOfOrderRecord = new AtomicBoolean(false);
+ ThreadSafeMutableRoaringBitmap validDocIds =
Objects.requireNonNull(segment.getValidDocIds());
+ ThreadSafeMutableRoaringBitmap queryableDocIds =
segment.getQueryableDocIds();
+ int newDocId = recordInfo.getDocId();
+ Comparable newComparisonValue = recordInfo.getComparisonValue();
+
+ // When TTL is enabled, update largestSeenComparisonValue when adding new
record
+ if (_deletedKeysTTL > 0) {
+ double comparisonValue = ((Number) newComparisonValue).doubleValue();
+ _largestSeenComparisonValue.getAndUpdate(v -> Math.max(v,
comparisonValue));
+ }
+
+
_primaryKeyToRecordLocationMap.compute(HashUtils.hashPrimaryKey(recordInfo.getPrimaryKey(),
_hashFunction),
+ (primaryKey, currentRecordLocation) -> {
+ if (currentRecordLocation != null) {
+ // Existing primary key
+ IndexSegment currentSegment = currentRecordLocation.getSegment();
+ // Update the record location when the new comparison value is
greater than or equal to the current value.
+ // Update the record location when there is a tie to keep the
newer record.
+ if
(newComparisonValue.compareTo(currentRecordLocation.getComparisonValue()) >= 0)
{
+ int currentDocId = currentRecordLocation.getDocId();
+ if (segment == currentSegment) {
+ replaceDocId(segment, validDocIds, queryableDocIds,
currentDocId, newDocId, recordInfo);
+ return new RecordLocation(segment, newDocId,
newComparisonValue,
+ currentRecordLocation.getDistinctSegmentCount());
+ } else {
+ replaceDocId(segment, validDocIds, queryableDocIds,
currentSegment, currentDocId, newDocId, recordInfo);
+ return new RecordLocation(segment, newDocId,
newComparisonValue,
+ currentRecordLocation.getDistinctSegmentCount() + 1);
+ }
+ } else {
+ // Out-of-order record
+
handleOutOfOrderEvent(currentRecordLocation.getComparisonValue(),
recordInfo.getComparisonValue());
+ isOutOfOrderRecord.set(true);
+ if (segment == currentSegment) {
+ return currentRecordLocation;
+ } else {
+ return new RecordLocation(currentSegment,
currentRecordLocation.getDocId(),
+ currentRecordLocation.getComparisonValue(),
+ currentRecordLocation.getDistinctSegmentCount() +
(_context.isDropOutOfOrderRecord() ? 0 : 1));
+ }
+ }
+ } else {
+ // New primary key
+ addDocId(segment, validDocIds, queryableDocIds, newDocId,
recordInfo);
+ return new RecordLocation(segment, newDocId, newComparisonValue,
1);
+ }
+ });
+
+ updatePrimaryKeyGauge();
+ return !isOutOfOrderRecord.get();
+ }
+
+ @Override
+ protected void removeSegment(IndexSegment segment, MutableRoaringBitmap
validDocIds) {
+ }
+
+ @Override
+ protected GenericRow doUpdateRecord(GenericRow record, RecordInfo
recordInfo) {
+ assert _partialUpsertHandler != null;
+
_primaryKeyToRecordLocationMap.computeIfPresent(HashUtils.hashPrimaryKey(recordInfo.getPrimaryKey(),
_hashFunction),
+ (pk, recordLocation) -> {
+ // Read the previous record if the following conditions are met:
+ // - New record is not a DELETE record
+ // - New record is not out-of-order
+ // - Previous record is not deleted
+ if (!recordInfo.isDeleteRecord()
+ &&
recordInfo.getComparisonValue().compareTo(recordLocation.getComparisonValue())
>= 0) {
+ IndexSegment currentSegment = recordLocation.getSegment();
+ ThreadSafeMutableRoaringBitmap currentQueryableDocIds =
currentSegment.getQueryableDocIds();
+ int currentDocId = recordLocation.getDocId();
+ if (currentQueryableDocIds == null ||
currentQueryableDocIds.contains(currentDocId)) {
+ _reusePreviousRow.init(currentSegment, currentDocId);
+ _partialUpsertHandler.merge(_reusePreviousRow, record,
_reuseMergeResultHolder);
+ _reuseMergeResultHolder.clear();
+ }
+ }
+ return recordLocation;
+ });
+ return record;
+ }
+
+ @VisibleForTesting
+ static class RecordLocation {
+ private final IndexSegment _segment;
+ private final int _docId;
+ private final Comparable _comparisonValue;
+ private final int _distinctSegmentCount;
+
+ public RecordLocation(IndexSegment indexSegment, int docId, Comparable
comparisonValue, int distinctSegmentCount) {
+ _segment = indexSegment;
+ _docId = docId;
+ _comparisonValue = comparisonValue;
+ _distinctSegmentCount = distinctSegmentCount;
+ }
+
+ public IndexSegment getSegment() {
+ return _segment;
+ }
+
+ public int getDocId() {
+ return _docId;
+ }
+
+ public Comparable getComparisonValue() {
+ return _comparisonValue;
+ }
+
+ public int getDistinctSegmentCount() {
Review Comment:
where do you want to check if this value is > 1 and let compaction tasks
skip the deletedKeys?
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