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new d74d8e2 [HUDI-1335] Introduce FlinkHoodieSimpleIndex to
hudi-flink-client (#2271)
d74d8e2 is described below
commit d74d8e208439df8cb2eb6c24019be55c002d00a5
Author: wangxianghu <[email protected]>
AuthorDate: Wed Feb 3 08:59:49 2021 +0800
[HUDI-1335] Introduce FlinkHoodieSimpleIndex to hudi-flink-client (#2271)
---
.../org/apache/hudi/index/FlinkHoodieIndex.java | 3 +
.../hudi/index/simple/FlinkHoodieSimpleIndex.java | 142 +++++++++++++++++++++
2 files changed, 145 insertions(+)
diff --git
a/hudi-client/hudi-flink-client/src/main/java/org/apache/hudi/index/FlinkHoodieIndex.java
b/hudi-client/hudi-flink-client/src/main/java/org/apache/hudi/index/FlinkHoodieIndex.java
index cfb21d9..ecd6490 100644
---
a/hudi-client/hudi-flink-client/src/main/java/org/apache/hudi/index/FlinkHoodieIndex.java
+++
b/hudi-client/hudi-flink-client/src/main/java/org/apache/hudi/index/FlinkHoodieIndex.java
@@ -29,6 +29,7 @@ import org.apache.hudi.common.util.ReflectionUtils;
import org.apache.hudi.common.util.StringUtils;
import org.apache.hudi.config.HoodieWriteConfig;
import org.apache.hudi.exception.HoodieIndexException;
+import org.apache.hudi.index.simple.FlinkHoodieSimpleIndex;
import org.apache.hudi.index.bloom.FlinkHoodieBloomIndex;
import org.apache.hudi.index.state.FlinkInMemoryStateIndex;
import org.apache.hudi.PublicAPIMethod;
@@ -61,6 +62,8 @@ public abstract class FlinkHoodieIndex<T extends
HoodieRecordPayload> extends Ho
return new FlinkInMemoryStateIndex<>(context, config);
case BLOOM:
return new FlinkHoodieBloomIndex(config);
+ case SIMPLE:
+ return new FlinkHoodieSimpleIndex<>(config);
default:
throw new HoodieIndexException("Unsupported index type " +
config.getIndexType());
}
diff --git
a/hudi-client/hudi-flink-client/src/main/java/org/apache/hudi/index/simple/FlinkHoodieSimpleIndex.java
b/hudi-client/hudi-flink-client/src/main/java/org/apache/hudi/index/simple/FlinkHoodieSimpleIndex.java
new file mode 100644
index 0000000..4df0ac4
--- /dev/null
+++
b/hudi-client/hudi-flink-client/src/main/java/org/apache/hudi/index/simple/FlinkHoodieSimpleIndex.java
@@ -0,0 +1,142 @@
+/*
+ * 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.index.simple;
+
+import org.apache.hudi.client.WriteStatus;
+import org.apache.hudi.common.engine.HoodieEngineContext;
+import org.apache.hudi.common.model.HoodieBaseFile;
+import org.apache.hudi.common.model.HoodieKey;
+import org.apache.hudi.common.model.HoodieRecord;
+import org.apache.hudi.common.model.HoodieRecordLocation;
+import org.apache.hudi.common.model.HoodieRecordPayload;
+import org.apache.hudi.common.util.Option;
+import org.apache.hudi.common.util.collection.Pair;
+import org.apache.hudi.config.HoodieWriteConfig;
+import org.apache.hudi.exception.HoodieIndexException;
+import org.apache.hudi.index.FlinkHoodieIndex;
+import org.apache.hudi.index.HoodieIndexUtils;
+import org.apache.hudi.io.HoodieKeyLocationFetchHandle;
+import org.apache.hudi.table.HoodieTable;
+
+import avro.shaded.com.google.common.collect.Lists;
+
+import java.util.HashMap;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.stream.Collectors;
+
+import static
org.apache.hudi.index.HoodieIndexUtils.getLatestBaseFilesForAllPartitions;
+
+/**
+ * A simple index which reads interested fields(record key and partition path)
from base files and
+ * compares with incoming records to find the tagged location.
+ *
+ * @param <T> type of payload
+ */
+public class FlinkHoodieSimpleIndex<T extends HoodieRecordPayload> extends
FlinkHoodieIndex<T> {
+
+ public FlinkHoodieSimpleIndex(HoodieWriteConfig config) {
+ super(config);
+ }
+
+ @Override
+ public List<WriteStatus> updateLocation(List<WriteStatus> writeStatuses,
HoodieEngineContext context,
+ HoodieTable<T,
List<HoodieRecord<T>>, List<HoodieKey>, List<WriteStatus>> hoodieTable) throws
HoodieIndexException {
+ return writeStatuses;
+ }
+
+ @Override
+ public boolean rollbackCommit(String instantTime) {
+ return true;
+ }
+
+ @Override
+ public boolean isGlobal() {
+ return false;
+ }
+
+ @Override
+ public boolean canIndexLogFiles() {
+ return false;
+ }
+
+ @Override
+ public boolean isImplicitWithStorage() {
+ return true;
+ }
+
+ @Override
+ public List<HoodieRecord<T>> tagLocation(List<HoodieRecord<T>>
hoodieRecords, HoodieEngineContext context,
+ HoodieTable<T,
List<HoodieRecord<T>>, List<HoodieKey>, List<WriteStatus>> hoodieTable) throws
HoodieIndexException {
+ return tagLocationInternal(hoodieRecords, context, hoodieTable);
+ }
+
+ /**
+ * Tags records location for incoming records.
+ */
+ private List<HoodieRecord<T>> tagLocationInternal(List<HoodieRecord<T>>
hoodieRecords, HoodieEngineContext context,
+ HoodieTable<T,
List<HoodieRecord<T>>, List<HoodieKey>, List<WriteStatus>> hoodieTable) {
+ Map<HoodieKey, HoodieRecord<T>> keyedInputRecords =
context.mapToPair(hoodieRecords, record -> Pair.of(record.getKey(), record), 0);
+ Map<HoodieKey, HoodieRecordLocation> existingLocationsOnTable =
fetchRecordLocationsForAffectedPartitions(keyedInputRecords.keySet(), context,
hoodieTable, config.getSimpleIndexParallelism());
+ List<HoodieRecord<T>> taggedRecords = new LinkedList<>();
+
+ for (Map.Entry<HoodieKey, HoodieRecord<T>> hoodieKeyHoodieRecordEntry :
keyedInputRecords.entrySet()) {
+ HoodieKey key = hoodieKeyHoodieRecordEntry.getKey();
+ HoodieRecord<T> record = hoodieKeyHoodieRecordEntry.getValue();
+ if (existingLocationsOnTable.containsKey(key)) {
+ taggedRecords.add(HoodieIndexUtils.getTaggedRecord(record,
Option.ofNullable(existingLocationsOnTable.get(key))));
+ }
+ }
+ return taggedRecords;
+ }
+
+ /**
+ * Fetch record locations for passed in {@link HoodieKey}s.
+ *
+ * @param keySet {@link HoodieKey}s for which locations are fetched
+ * @param context instance of {@link HoodieEngineContext} to use
+ * @param hoodieTable instance of {@link HoodieTable} of interest
+ * @param parallelism parallelism to use
+ * @return {@link Map} of {@link HoodieKey} and {@link HoodieRecordLocation}
+ */
+ private Map<HoodieKey, HoodieRecordLocation>
fetchRecordLocationsForAffectedPartitions(Set<HoodieKey> keySet,
+
HoodieEngineContext context,
+
HoodieTable<T, List<HoodieRecord<T>>, List<HoodieKey>,
List<WriteStatus>> hoodieTable,
+
int parallelism) {
+ List<String> affectedPartitionPathList =
keySet.stream().map(HoodieKey::getPartitionPath).distinct().collect(Collectors.toList());
+ List<Pair<String, HoodieBaseFile>> latestBaseFiles =
getLatestBaseFilesForAllPartitions(affectedPartitionPathList, context,
hoodieTable);
+ return fetchRecordLocations(context, hoodieTable, parallelism,
latestBaseFiles);
+ }
+
+ private Map<HoodieKey, HoodieRecordLocation>
fetchRecordLocations(HoodieEngineContext context,
+
HoodieTable<T, List<HoodieRecord<T>>, List<HoodieKey>, List<WriteStatus>>
hoodieTable,
+ int
parallelism,
+
List<Pair<String, HoodieBaseFile>> latestBaseFiles) {
+
+ List<HoodieKeyLocationFetchHandle<T, List<HoodieRecord<T>>,
List<HoodieKey>, List<WriteStatus>>> hoodieKeyLocationFetchHandles =
+ context.map(latestBaseFiles, partitionPathBaseFile -> new
HoodieKeyLocationFetchHandle<>(config, hoodieTable, partitionPathBaseFile),
parallelism);
+ Map<HoodieKey, HoodieRecordLocation> recordLocations = new HashMap<>();
+ hoodieKeyLocationFetchHandles.stream()
+ .flatMap(handle -> Lists.newArrayList(handle.locations()).stream())
+ .forEach(x -> x.forEach(y -> recordLocations.put(y.getKey(),
y.getRight())));
+ return recordLocations;
+ }
+}
