This is an automated email from the ASF dual-hosted git repository.
danny0405 pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/hudi.git
The following commit(s) were added to refs/heads/master by this push:
new 9e602fa1a831 perf: [Flink] Add
FlinkSkipSingleFileClusteringPlanStrategy to skip clustering for partitions
with only one left small file (#14087)
9e602fa1a831 is described below
commit 9e602fa1a83193b868a3fd4dd773a152c2576f37
Author: zoomake <[email protected]>
AuthorDate: Wed Oct 29 11:14:13 2025 +0800
perf: [Flink] Add FlinkSkipSingleFileClusteringPlanStrategy to skip
clustering for partitions with only one left small file (#14087)
---
.../FlinkSkipSingleFileClusteringPlanStrategy.java | 59 ++++++++++++++++++++++
1 file changed, 59 insertions(+)
diff --git
a/hudi-client/hudi-flink-client/src/main/java/org/apache/hudi/client/clustering/plan/strategy/FlinkSkipSingleFileClusteringPlanStrategy.java
b/hudi-client/hudi-flink-client/src/main/java/org/apache/hudi/client/clustering/plan/strategy/FlinkSkipSingleFileClusteringPlanStrategy.java
new file mode 100644
index 000000000000..dee81fdb6462
--- /dev/null
+++
b/hudi-client/hudi-flink-client/src/main/java/org/apache/hudi/client/clustering/plan/strategy/FlinkSkipSingleFileClusteringPlanStrategy.java
@@ -0,0 +1,59 @@
+/*
+ * 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.client.clustering.plan.strategy;
+
+import org.apache.hudi.common.engine.HoodieEngineContext;
+import org.apache.hudi.common.model.FileSlice;
+import org.apache.hudi.common.util.StringUtils;
+import org.apache.hudi.config.HoodieWriteConfig;
+import org.apache.hudi.table.HoodieTable;
+
+import java.util.List;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+/**
+ * An extension of {@link FlinkSizeBasedClusteringPlanStrategy} that skips
clustering
+ * for partitions containing only one small file.
+ */
+public class FlinkSkipSingleFileClusteringPlanStrategy<T>
+ extends FlinkSizeBasedClusteringPlanStrategy<T> {
+
+ public FlinkSkipSingleFileClusteringPlanStrategy(HoodieTable table,
+ HoodieEngineContext
engineContext,
+ HoodieWriteConfig writeConfig) {
+ super(table, engineContext, writeConfig);
+ }
+
+ @Override
+ protected Stream<FileSlice> getFileSlicesEligibleForClustering(final String
partition) {
+ List<FileSlice> fileSlices =
super.getFileSlicesEligibleForClustering(partition)
+ .collect(Collectors.toList());
+
+ // if some special sort columns are declared, we can not skip the
clustering.
+ if
(!StringUtils.isNullOrEmpty(getWriteConfig().getClusteringSortColumns())) {
+ return fileSlices.stream();
+ }
+
+ if (fileSlices.size() > 1) {
+ return fileSlices.stream();
+ }
+ return Stream.empty();
+ }
+}
