vanzin commented on a change in pull request #25007: [SPARK-28209][CORE][SHUFFLE] Proposed new shuffle writer API URL: https://github.com/apache/spark/pull/25007#discussion_r302754337
########## File path: core/src/main/java/org/apache/spark/shuffle/api/ShufflePartitionWriter.java ########## @@ -0,0 +1,46 @@ +/* + * 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.api; + +import java.io.IOException; +import java.io.OutputStream; + +import org.apache.spark.annotation.Experimental; + +/** + * :: Experimental :: + * An interface for opening streams to persist partition bytes to a backing data store. + * + * @since 3.0.0 + */ +@Experimental +public interface ShufflePartitionWriter { + + /** + * Opens and returns an underlying {@link OutputStream} that can write bytes to the underlying + * data store. + * <p> + * The same caller that invokes this method will also close the returned output stream. Review comment: I'm not seeing the usefulness of this bit. Are you trying to make clear that the caller will close the stream? Or that there's just one caller (and why is that important)? Or do you mean thread? ---------------------------------------------------------------- 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. For queries about this service, please contact Infrastructure at: [email protected] With regards, Apache Git Services --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
