[120] | 1 | /** |
---|
| 2 | * Licensed to the Apache Software Foundation (ASF) under one |
---|
| 3 | * or more contributor license agreements. See the NOTICE file |
---|
| 4 | * distributed with this work for additional information |
---|
| 5 | * regarding copyright ownership. The ASF licenses this file |
---|
| 6 | * to you under the Apache License, Version 2.0 (the |
---|
| 7 | * "License"); you may not use this file except in compliance |
---|
| 8 | * with the License. You may obtain a copy of the License at |
---|
| 9 | * |
---|
| 10 | * http://www.apache.org/licenses/LICENSE-2.0 |
---|
| 11 | * |
---|
| 12 | * Unless required by applicable law or agreed to in writing, software |
---|
| 13 | * distributed under the License is distributed on an "AS IS" BASIS, |
---|
| 14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
---|
| 15 | * See the License for the specific language governing permissions and |
---|
| 16 | * limitations under the License. |
---|
| 17 | */ |
---|
| 18 | |
---|
| 19 | package org.apache.hadoop.mapred; |
---|
| 20 | |
---|
| 21 | import org.apache.hadoop.util.MemoryCalculatorPlugin; |
---|
| 22 | |
---|
| 23 | /** |
---|
| 24 | * Plugin class to test virtual and physical memories reported by TT. Use |
---|
| 25 | * configuration items {@link #MAXVMEM_TESTING_PROPERTY} and |
---|
| 26 | * {@link #MAXPMEM_TESTING_PROPERTY} to tell TT the total vmem and the total |
---|
| 27 | * pmem. |
---|
| 28 | */ |
---|
| 29 | public class DummyMemoryCalculatorPlugin extends MemoryCalculatorPlugin { |
---|
| 30 | |
---|
| 31 | /** max vmem on the TT */ |
---|
| 32 | public static final String MAXVMEM_TESTING_PROPERTY = |
---|
| 33 | "mapred.tasktracker.maxvmem.testing"; |
---|
| 34 | /** max pmem on the TT */ |
---|
| 35 | public static final String MAXPMEM_TESTING_PROPERTY = |
---|
| 36 | "mapred.tasktracker.maxpmem.testing"; |
---|
| 37 | |
---|
| 38 | /** {@inheritDoc} */ |
---|
| 39 | @Override |
---|
| 40 | public long getVirtualMemorySize() { |
---|
| 41 | return getConf().getLong(MAXVMEM_TESTING_PROPERTY, -1); |
---|
| 42 | } |
---|
| 43 | |
---|
| 44 | /** {@inheritDoc} */ |
---|
| 45 | @Override |
---|
| 46 | public long getPhysicalMemorySize() { |
---|
| 47 | return getConf().getLong(MAXPMEM_TESTING_PROPERTY, -1); |
---|
| 48 | } |
---|
| 49 | } |
---|