EnricoMi commented on code in PR #1652: URL: https://github.com/apache/incubator-uniffle/pull/1652#discussion_r1568295011
########## client-spark/common/src/main/java/org/apache/spark/shuffle/writer/ShuffleHandleInfoWrapper.java: ########## @@ -0,0 +1,68 @@ +/* + * 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.shuffle.writer; + +import java.util.HashSet; +import java.util.List; +import java.util.Map; +import java.util.Set; + +import com.google.common.annotations.VisibleForTesting; +import org.apache.spark.shuffle.ShuffleHandleInfo; + +import org.apache.uniffle.common.ShuffleServerInfo; +import org.apache.uniffle.common.exception.RssException; + +/** This class is to wrap the shuffleHandleInfo to speed up the partitionAssignment getting. */ +public class ShuffleHandleInfoWrapper { Review Comment: Calling `ShuffleHandleInfoWrapper(taskAttemptId, shuffleHandleInfo).retrievePartitionAssignment(partitionId)` could be replaced with `shuffleHandleInfo.getLatestAssignmentPlan(taskAttemptId).get(partitionId)`. To avoid fetching the whole plan for each partition, this wrapper caches it. Looks like this is the only purpose of this class, as indicated by the comment above /** This class is to wrap the shuffleHandleInfo to speed up the partitionAssignment getting. */ Why can't `ShuffleHandleInfo` cache the partition assignment? Do you need `ShuffleHandleInfo` to be immutable? -- 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: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
