| /** |
| * 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.rmapp.attempt; |
| |
| import org.apache.commons.lang.RandomStringUtils; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.yarn.api.records.ApplicationAttemptId; |
| import org.apache.hadoop.yarn.api.records.ApplicationId; |
| import org.apache.hadoop.yarn.conf.YarnConfiguration; |
| import org.apache.hadoop.yarn.event.Dispatcher; |
| import org.apache.hadoop.yarn.exceptions.YarnRuntimeException; |
| import org.apache.hadoop.yarn.server.resourcemanager.RMContext; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.rules.ExpectedException; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.mockito.Mockito.mock; |
| import static org.mockito.Mockito.when; |
| |
| /** |
| * Testing {@link RMAppAttemptImpl#diagnostics} scenarios. |
| */ |
| public class TestRMAppAttemptImplDiagnostics { |
| |
| @Rule |
| public ExpectedException expectedException = ExpectedException.none(); |
| |
| @Test |
| public void whenCreatedWithDefaultConfigurationSuccess() { |
| final Configuration configuration = new Configuration(); |
| configuration.setInt(YarnConfiguration.APP_ATTEMPT_DIAGNOSTICS_LIMIT_KC, |
| YarnConfiguration.DEFAULT_APP_ATTEMPT_DIAGNOSTICS_LIMIT_KC); |
| |
| createRMAppAttemptImpl(configuration); |
| } |
| |
| @Test |
| public void whenCreatedWithWrongConfigurationError() { |
| final Configuration configuration = new Configuration(); |
| configuration.setInt(YarnConfiguration.APP_ATTEMPT_DIAGNOSTICS_LIMIT_KC, 0); |
| |
| expectedException.expect(YarnRuntimeException.class); |
| |
| createRMAppAttemptImpl(configuration); |
| } |
| |
| @Test |
| public void whenAppendedWithinLimitMessagesArePreserved() { |
| final Configuration configuration = new Configuration(); |
| configuration.setInt(YarnConfiguration.APP_ATTEMPT_DIAGNOSTICS_LIMIT_KC, 1); |
| |
| final RMAppAttemptImpl appAttempt = createRMAppAttemptImpl(configuration); |
| |
| final String withinLimit = RandomStringUtils.random(1024); |
| appAttempt.appendDiagnostics(withinLimit); |
| |
| assertEquals("messages within limit should be preserved", withinLimit, |
| appAttempt.getDiagnostics()); |
| } |
| |
| @Test |
| public void whenAppendedBeyondLimitMessagesAreTruncated() { |
| final Configuration configuration = new Configuration(); |
| configuration.setInt(YarnConfiguration.APP_ATTEMPT_DIAGNOSTICS_LIMIT_KC, 1); |
| |
| final RMAppAttemptImpl appAttempt = createRMAppAttemptImpl(configuration); |
| |
| final String beyondLimit = RandomStringUtils.random(1025); |
| appAttempt.appendDiagnostics(beyondLimit); |
| |
| final String truncated = String.format( |
| RMAppAttemptImpl.BoundedAppender.TRUNCATED_MESSAGES_TEMPLATE, 1024, |
| 1025, beyondLimit.substring(1)); |
| |
| assertEquals("messages beyond limit should be truncated", truncated, |
| appAttempt.getDiagnostics()); |
| } |
| |
| private RMAppAttemptImpl createRMAppAttemptImpl( |
| final Configuration configuration) { |
| final ApplicationAttemptId mockApplicationAttemptId = |
| mock(ApplicationAttemptId.class); |
| final ApplicationId mockApplicationId = mock(ApplicationId.class); |
| when(mockApplicationAttemptId.getApplicationId()) |
| .thenReturn(mockApplicationId); |
| |
| final RMContext mockRMContext = mock(RMContext.class); |
| final Dispatcher mockDispatcher = mock(Dispatcher.class); |
| when(mockRMContext.getDispatcher()).thenReturn(mockDispatcher); |
| |
| return new RMAppAttemptImpl(mockApplicationAttemptId, mockRMContext, null, |
| null, null, configuration, null, null); |
| } |
| } |