| /** |
| * 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.hadoop.mapred; |
| |
| import org.apache.hadoop.classification.InterfaceAudience.Private; |
| import org.apache.hadoop.classification.InterfaceStability.Unstable; |
| |
| /* |
| * This object gathers the [currently four] PeriodStatset's that we |
| * are gathering for a particular task attempt for packaging and |
| * handling as a single object. |
| */ |
| @Private |
| @Unstable |
| public class ProgressSplitsBlock { |
| final PeriodicStatsAccumulator progressWallclockTime; |
| final PeriodicStatsAccumulator progressCPUTime; |
| final PeriodicStatsAccumulator progressVirtualMemoryKbytes; |
| final PeriodicStatsAccumulator progressPhysicalMemoryKbytes; |
| |
| static final int[] NULL_ARRAY = new int[0]; |
| |
| static final int WALLCLOCK_TIME_INDEX = 0; |
| static final int CPU_TIME_INDEX = 1; |
| static final int VIRTUAL_MEMORY_KBYTES_INDEX = 2; |
| static final int PHYSICAL_MEMORY_KBYTES_INDEX = 3; |
| |
| static final int DEFAULT_NUMBER_PROGRESS_SPLITS = 12; |
| |
| ProgressSplitsBlock(int numberSplits) { |
| progressWallclockTime |
| = new CumulativePeriodicStats(numberSplits); |
| progressCPUTime |
| = new CumulativePeriodicStats(numberSplits); |
| progressVirtualMemoryKbytes |
| = new StatePeriodicStats(numberSplits); |
| progressPhysicalMemoryKbytes |
| = new StatePeriodicStats(numberSplits); |
| } |
| |
| // this coordinates with LoggedTaskAttempt.SplitVectorKind |
| int[][] burst() { |
| int[][] result = new int[4][]; |
| |
| result[WALLCLOCK_TIME_INDEX] = progressWallclockTime.getValues(); |
| result[CPU_TIME_INDEX] = progressCPUTime.getValues(); |
| result[VIRTUAL_MEMORY_KBYTES_INDEX] = progressVirtualMemoryKbytes.getValues(); |
| result[PHYSICAL_MEMORY_KBYTES_INDEX] = progressPhysicalMemoryKbytes.getValues(); |
| |
| return result; |
| } |
| |
| static public int[] arrayGet(int[][] burstedBlock, int index) { |
| return burstedBlock == null ? NULL_ARRAY : burstedBlock[index]; |
| } |
| |
| static public int[] arrayGetWallclockTime(int[][] burstedBlock) { |
| return arrayGet(burstedBlock, WALLCLOCK_TIME_INDEX); |
| } |
| |
| static public int[] arrayGetCPUTime(int[][] burstedBlock) { |
| return arrayGet(burstedBlock, CPU_TIME_INDEX); |
| } |
| |
| static public int[] arrayGetVMemKbytes(int[][] burstedBlock) { |
| return arrayGet(burstedBlock, VIRTUAL_MEMORY_KBYTES_INDEX); |
| } |
| |
| static public int[] arrayGetPhysMemKbytes(int[][] burstedBlock) { |
| return arrayGet(burstedBlock, PHYSICAL_MEMORY_KBYTES_INDEX); |
| } |
| } |
| |