| /** |
| * 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.yarn.server.resourcemanager.monitor.invariants; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.metrics2.MetricsSystem; |
| import org.apache.hadoop.metrics2.lib.DefaultMetricsSystem; |
| import org.apache.hadoop.metrics2.source.JvmMetrics; |
| import org.apache.hadoop.util.Shell; |
| import org.apache.hadoop.yarn.api.records.Resource; |
| import org.apache.hadoop.yarn.server.resourcemanager.nodelabels.RMNodeLabelsManager; |
| import org.apache.hadoop.yarn.server.resourcemanager.scheduler.QueueMetrics; |
| import org.apache.log4j.Logger; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| import static junit.framework.TestCase.fail; |
| |
| /** |
| * This class tests the {@code MetricsInvariantChecker} by running it multiple |
| * time and reporting the time it takes to execute, as well as verifying that |
| * the invariant throws in case the invariants are not respected. |
| */ |
| public class TestMetricsInvariantChecker { |
| public final static Logger LOG = |
| Logger.getLogger(TestMetricsInvariantChecker.class); |
| |
| private MetricsSystem metricsSystem; |
| private MetricsInvariantChecker ic; |
| private Configuration conf; |
| |
| @Before |
| public void setup() { |
| this.metricsSystem = DefaultMetricsSystem.instance(); |
| JvmMetrics.initSingleton("ResourceManager", null); |
| this.ic = new MetricsInvariantChecker(); |
| this.conf = new Configuration(); |
| if (Shell.isJavaVersionAtLeast(9)) { |
| conf.set(MetricsInvariantChecker.INVARIANTS_FILE, |
| "src/test/resources/invariants_jdk9.txt"); |
| } else { |
| conf.set(MetricsInvariantChecker.INVARIANTS_FILE, |
| "src/test/resources/invariants.txt"); |
| } |
| conf.setBoolean(MetricsInvariantChecker.THROW_ON_VIOLATION, true); |
| ic.init(conf, null, null); |
| } |
| |
| @Test(timeout = 5000) |
| public void testManyRuns() { |
| |
| QueueMetrics qm = |
| QueueMetrics.forQueue(metricsSystem, "root", null, false, conf); |
| qm.setAvailableResourcesToQueue(RMNodeLabelsManager.NO_LABEL, |
| Resource.newInstance(1, 1)); |
| |
| int numIterations = 1000; |
| long start = System.currentTimeMillis(); |
| for (int i = 0; i < numIterations; i++) { |
| ic.editSchedule(); |
| } |
| long end = System.currentTimeMillis(); |
| |
| System.out.println("Runtime per iteration (avg of " + numIterations |
| + " iterations): " + (end - start) + " tot time"); |
| |
| } |
| |
| @Test |
| public void testViolation() { |
| |
| // create a "wrong" condition in which the invariants are not respected |
| QueueMetrics qm = |
| QueueMetrics.forQueue(metricsSystem, "root", null, false, conf); |
| qm.setAvailableResourcesToQueue(RMNodeLabelsManager.NO_LABEL, |
| Resource.newInstance(-1, -1)); |
| |
| // test with throwing exception turned on |
| try { |
| ic.editSchedule(); |
| fail(); |
| } catch (InvariantViolationException i) { |
| // expected |
| } |
| |
| // test log-only mode |
| conf.setBoolean(MetricsInvariantChecker.THROW_ON_VIOLATION, false); |
| ic.init(conf, null, null); |
| ic.editSchedule(); |
| |
| } |
| |
| } |