1/* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18package org.apache.spark.storage 19 20import org.apache.spark.annotation.DeveloperApi 21import org.apache.spark.rdd.{RDD, RDDOperationScope} 22import org.apache.spark.util.Utils 23 24@DeveloperApi 25class RDDInfo( 26 val id: Int, 27 var name: String, 28 val numPartitions: Int, 29 var storageLevel: StorageLevel, 30 val parentIds: Seq[Int], 31 val callSite: String = "", 32 val scope: Option[RDDOperationScope] = None) 33 extends Ordered[RDDInfo] { 34 35 var numCachedPartitions = 0 36 var memSize = 0L 37 var diskSize = 0L 38 var externalBlockStoreSize = 0L 39 40 def isCached: Boolean = (memSize + diskSize > 0) && numCachedPartitions > 0 41 42 override def toString: String = { 43 import Utils.bytesToString 44 ("RDD \"%s\" (%d) StorageLevel: %s; CachedPartitions: %d; TotalPartitions: %d; " + 45 "MemorySize: %s; DiskSize: %s").format( 46 name, id, storageLevel.toString, numCachedPartitions, numPartitions, 47 bytesToString(memSize), bytesToString(diskSize)) 48 } 49 50 override def compare(that: RDDInfo): Int = { 51 this.id - that.id 52 } 53} 54 55private[spark] object RDDInfo { 56 def fromRdd(rdd: RDD[_]): RDDInfo = { 57 val rddName = Option(rdd.name).getOrElse(Utils.getFormattedClassName(rdd)) 58 val parentIds = rdd.dependencies.map(_.rdd.id) 59 new RDDInfo(rdd.id, rddName, rdd.partitions.length, 60 rdd.getStorageLevel, parentIds, rdd.creationSite.shortForm, rdd.scope) 61 } 62} 63