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fix: [Spark 4.1] preserve union output partitioning in CometUnionExec #4207
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d9ec928
fix: [Spark 4.1] preserve union output partitioning in CometUnionExec…
andygrove c688731
ci: register CometSetOpWithGroupBySuite in pr_build workflows
andygrove 308dcb7
fix: [Spark 4.1.1] drop orphaned whitespace hunks on intersect-all go…
andygrove 6d98643
test: address review feedback on CometUnionExec partitioning fix
andygrove 19e5b04
Merge branch 'main' into issue-4122
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43 changes: 43 additions & 0 deletions
43
spark/src/main/spark-3.4/org/apache/spark/sql/comet/shims/ShimCometUnionExec.scala
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,43 @@ | ||
| /* | ||
| * 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.spark.sql.comet.shims | ||
|
|
||
| import scala.reflect.ClassTag | ||
|
|
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| import org.apache.spark.SparkContext | ||
| import org.apache.spark.rdd.RDD | ||
| import org.apache.spark.sql.catalyst.plans.physical.Partitioning | ||
|
|
||
| object ShimCometUnionExec { | ||
|
|
||
| /** | ||
| * Unions a sequence of RDDs while preserving the declared output partitioning. Before Spark | ||
| * 4.1, [[org.apache.spark.sql.execution.UnionExec]] always reports | ||
| * [[org.apache.spark.sql.catalyst.plans.physical.UnknownPartitioning]], so this shim simply | ||
| * concatenates partitions via `SparkContext.union`. The partitioning-aware path is only needed | ||
| * on Spark 4.1+ (see SPARK-52921). | ||
| */ | ||
| def unionRDDs[T: ClassTag]( | ||
| sc: SparkContext, | ||
| rdds: Seq[RDD[T]], | ||
| @annotation.nowarn("cat=unused") outputPartitioning: Partitioning): RDD[T] = { | ||
| sc.union(rdds) | ||
| } | ||
| } |
43 changes: 43 additions & 0 deletions
43
spark/src/main/spark-3.5/org/apache/spark/sql/comet/shims/ShimCometUnionExec.scala
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,43 @@ | ||
| /* | ||
| * 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.spark.sql.comet.shims | ||
|
|
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| import scala.reflect.ClassTag | ||
|
|
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| import org.apache.spark.SparkContext | ||
| import org.apache.spark.rdd.RDD | ||
| import org.apache.spark.sql.catalyst.plans.physical.Partitioning | ||
|
|
||
| object ShimCometUnionExec { | ||
|
|
||
| /** | ||
| * Unions a sequence of RDDs while preserving the declared output partitioning. Before Spark | ||
| * 4.1, [[org.apache.spark.sql.execution.UnionExec]] always reports | ||
| * [[org.apache.spark.sql.catalyst.plans.physical.UnknownPartitioning]], so this shim simply | ||
| * concatenates partitions via `SparkContext.union`. The partitioning-aware path is only needed | ||
| * on Spark 4.1+ (see SPARK-52921). | ||
| */ | ||
| def unionRDDs[T: ClassTag]( | ||
| sc: SparkContext, | ||
| rdds: Seq[RDD[T]], | ||
| @annotation.nowarn("cat=unused") outputPartitioning: Partitioning): RDD[T] = { | ||
| sc.union(rdds) | ||
| } | ||
| } |
43 changes: 43 additions & 0 deletions
43
spark/src/main/spark-4.0/org/apache/spark/sql/comet/shims/ShimCometUnionExec.scala
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,43 @@ | ||
| /* | ||
| * 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.spark.sql.comet.shims | ||
|
|
||
| import scala.reflect.ClassTag | ||
|
|
||
| import org.apache.spark.SparkContext | ||
| import org.apache.spark.rdd.RDD | ||
| import org.apache.spark.sql.catalyst.plans.physical.Partitioning | ||
|
|
||
| object ShimCometUnionExec { | ||
|
|
||
| /** | ||
| * Unions a sequence of RDDs while preserving the declared output partitioning. Before Spark | ||
| * 4.1, [[org.apache.spark.sql.execution.UnionExec]] always reports | ||
| * [[org.apache.spark.sql.catalyst.plans.physical.UnknownPartitioning]], so this shim simply | ||
| * concatenates partitions via `SparkContext.union`. The partitioning-aware path is only needed | ||
| * on Spark 4.1+ (see SPARK-52921). | ||
| */ | ||
| def unionRDDs[T: ClassTag]( | ||
| sc: SparkContext, | ||
| rdds: Seq[RDD[T]], | ||
| @annotation.nowarn("cat=unused") outputPartitioning: Partitioning): RDD[T] = { | ||
| sc.union(rdds) | ||
| } | ||
| } |
66 changes: 66 additions & 0 deletions
66
spark/src/main/spark-4.1/org/apache/spark/sql/comet/shims/ShimCometUnionExec.scala
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,66 @@ | ||
| /* | ||
| * 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.spark.sql.comet.shims | ||
|
|
||
| import scala.reflect.ClassTag | ||
|
|
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| import org.apache.spark.SparkContext | ||
| import org.apache.spark.internal.Logging | ||
| import org.apache.spark.rdd.{RDD, SQLPartitioningAwareUnionRDD} | ||
| import org.apache.spark.sql.catalyst.plans.physical.{Partitioning, UnknownPartitioning} | ||
|
|
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| object ShimCometUnionExec extends Logging { | ||
|
|
||
| /** | ||
| * Unions a sequence of RDDs while preserving the declared output partitioning. Spark 4.1 | ||
| * introduced [[org.apache.spark.sql.internal.SQLConf.UNION_OUTPUT_PARTITIONING]] (SPARK-52921), | ||
| * which lets [[org.apache.spark.sql.execution.UnionExec]] report a non-trivial output | ||
| * partitioning when all children share the same partitioning. Downstream operators may then | ||
| * skip an otherwise-required shuffle, so the columnar Union path must honor that contract by | ||
| * routing through [[SQLPartitioningAwareUnionRDD]] rather than plain `SparkContext.union`, | ||
| * which concatenates partitions and breaks the partitioning invariant. | ||
| */ | ||
| def unionRDDs[T: ClassTag]( | ||
| sc: SparkContext, | ||
| rdds: Seq[RDD[T]], | ||
| outputPartitioning: Partitioning): RDD[T] = { | ||
| outputPartitioning match { | ||
| case _: UnknownPartitioning => sc.union(rdds) | ||
| case _ => | ||
| val numPartitions = outputPartitioning.numPartitions | ||
| val nonEmpty = rdds.filter(_.partitions.nonEmpty) | ||
| // SQLPartitioningAwareUnionRDD indexes every child at every output partition, so any | ||
| // child whose partition count diverges from the declared numPartitions would raise | ||
| // ArrayIndexOutOfBoundsException. That would only happen if the declared partitioning | ||
| // is stale relative to the RDDs (e.g. children were coalesced by AQE but the reported | ||
| // partitioning was not). Fall back to plain concat in that case. | ||
| if (nonEmpty.isEmpty || nonEmpty.exists(_.partitions.length != numPartitions)) { | ||
| val childCounts = rdds.map(_.partitions.length).mkString(", ") | ||
| logWarning( | ||
| s"CometUnionExec: child partition counts ($childCounts) do not match " + | ||
| s"declared output partitioning numPartitions=$numPartitions; " + | ||
| "falling back to SparkContext.union concat.") | ||
| sc.union(rdds) | ||
| } else { | ||
| new SQLPartitioningAwareUnionRDD(sc, nonEmpty, numPartitions) | ||
| } | ||
| } | ||
| } | ||
| } | ||
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if
_.partitions.length != numPartitionsfires, then we should probably log a warning message.There was a problem hiding this comment.
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Added