diff options
Diffstat (limited to 'core/src/main/scala/org/apache/spark/ShuffleFetcher.scala')
-rw-r--r-- | core/src/main/scala/org/apache/spark/ShuffleFetcher.scala | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/core/src/main/scala/org/apache/spark/ShuffleFetcher.scala b/core/src/main/scala/org/apache/spark/ShuffleFetcher.scala new file mode 100644 index 0000000000..307c383a89 --- /dev/null +++ b/core/src/main/scala/org/apache/spark/ShuffleFetcher.scala @@ -0,0 +1,35 @@ +/* + * 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 + +import org.apache.spark.executor.TaskMetrics +import org.apache.spark.serializer.Serializer + + +private[spark] abstract class ShuffleFetcher { + + /** + * Fetch the shuffle outputs for a given ShuffleDependency. + * @return An iterator over the elements of the fetched shuffle outputs. + */ + def fetch[T](shuffleId: Int, reduceId: Int, metrics: TaskMetrics, + serializer: Serializer = SparkEnv.get.serializerManager.default): Iterator[T] + + /** Stop the fetcher */ + def stop() {} +} |