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/*
* 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
import org.apache.spark.{FetchFailed, TaskEndReason}
import org.apache.spark.storage.BlockManagerId
import org.apache.spark.util.Utils
/**
* Failed to fetch a shuffle block. The executor catches this exception and propagates it
* back to DAGScheduler (through TaskEndReason) so we'd resubmit the previous stage.
*
* Note that bmAddress can be null.
*/
private[spark] class FetchFailedException(
bmAddress: BlockManagerId,
shuffleId: Int,
mapId: Int,
reduceId: Int,
message: String,
cause: Throwable = null)
extends Exception(message, cause) {
def this(
bmAddress: BlockManagerId,
shuffleId: Int,
mapId: Int,
reduceId: Int,
cause: Throwable) {
this(bmAddress, shuffleId, mapId, reduceId, cause.getMessage, cause)
}
def toTaskEndReason: TaskEndReason = FetchFailed(bmAddress, shuffleId, mapId, reduceId,
Utils.exceptionString(this))
}
/**
* Failed to get shuffle metadata from [[org.apache.spark.MapOutputTracker]].
*/
private[spark] class MetadataFetchFailedException(
shuffleId: Int,
reduceId: Int,
message: String)
extends FetchFailedException(null, shuffleId, -1, reduceId, message)
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