| /* |
| * |
| * 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.resourceestimator.solver.impl; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.resourceestimator.common.api.RecurrenceId; |
| import org.apache.hadoop.resourceestimator.common.api.ResourceSkyline; |
| import org.apache.hadoop.resourceestimator.common.config.ResourceEstimatorConfiguration; |
| import org.apache.hadoop.resourceestimator.common.exception.ResourceEstimatorException; |
| import org.apache.hadoop.resourceestimator.skylinestore.exceptions.SkylineStoreException; |
| import org.apache.hadoop.resourceestimator.skylinestore.impl.InMemoryStore; |
| import org.apache.hadoop.resourceestimator.solver.api.Solver; |
| import org.apache.hadoop.resourceestimator.solver.exceptions.SolverException; |
| import org.apache.hadoop.resourceestimator.translator.api.LogParser; |
| import org.apache.hadoop.resourceestimator.translator.exceptions.DataFieldNotFoundException; |
| import org.apache.hadoop.resourceestimator.translator.impl.BaseLogParser; |
| import org.apache.hadoop.yarn.server.resourcemanager.reservation.RLESparseResourceAllocation; |
| import org.junit.Test; |
| |
| import java.io.BufferedReader; |
| import java.io.FileInputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.InputStreamReader; |
| import java.io.Reader; |
| import java.nio.charset.Charset; |
| import java.text.ParseException; |
| import java.util.List; |
| import java.util.Map; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| /** |
| * This LPSolver class will make resource estimation using Linear Programming |
| * model. We use ojAlgo solver to solve the model. |
| */ |
| public class TestLpSolver extends TestSolver { |
| private static final LogParser SAMPLEPARSER = new BaseLogParser(); |
| private Solver solver; |
| private InMemoryStore skylineStore = new InMemoryStore(); |
| |
| private void parseLog(final String inputLog) |
| throws SolverException, IOException, SkylineStoreException, |
| DataFieldNotFoundException, ParseException { |
| final InputStream logs = new FileInputStream(inputLog); |
| SAMPLEPARSER.parseStream(logs); |
| } |
| |
| @Override protected Solver createSolver() throws ResourceEstimatorException { |
| solver = new LpSolver(); |
| Configuration config = new Configuration(); |
| config.addResource(ResourceEstimatorConfiguration.CONFIG_FILE); |
| solver.init(config, skylineStore); |
| SAMPLEPARSER.init(config, skylineStore); |
| return solver; |
| } |
| |
| @Test public void testSolve() |
| throws IOException, SkylineStoreException, SolverException, |
| ResourceEstimatorException, DataFieldNotFoundException, ParseException { |
| parseLog("src/test/resources/lp/tpch_q12.txt"); |
| RecurrenceId recurrenceId = new RecurrenceId("tpch_q12", "*"); |
| final Map<RecurrenceId, List<ResourceSkyline>> jobHistory = |
| skylineStore.getHistory(recurrenceId); |
| solver = createSolver(); |
| RLESparseResourceAllocation result = solver.solve(jobHistory); |
| String file = "src/test/resources/lp/answer.txt"; |
| Reader fileReader = new InputStreamReader(new FileInputStream(file), |
| Charset.forName("UTF-8")); |
| BufferedReader bufferedReader = new BufferedReader(fileReader); |
| String line = bufferedReader.readLine(); |
| Configuration config = new Configuration(); |
| config.addResource(new org.apache.hadoop.fs.Path( |
| ResourceEstimatorConfiguration.CONFIG_FILE)); |
| int timeInterval = |
| config.getInt(ResourceEstimatorConfiguration.TIME_INTERVAL_KEY, 5); |
| final long containerMemAlloc = |
| jobHistory.entrySet().iterator().next().getValue().get(0) |
| .getContainerSpec().getMemorySize(); |
| int count = 0; |
| int numContainer = 0; |
| while (line != null) { |
| numContainer = |
| (int) (result.getCapacityAtTime(count * timeInterval).getMemorySize() |
| / containerMemAlloc); |
| assertEquals(Integer.parseInt(line), numContainer, |
| 0.1 * Integer.parseInt(line)); |
| line = bufferedReader.readLine(); |
| count++; |
| } |
| fileReader.close(); |
| bufferedReader.close(); |
| } |
| } |