slfan1989 commented on code in PR #4314: URL: https://github.com/apache/hadoop/pull/4314#discussion_r945245127
########## hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-web-proxy/src/test/java/org/apache/hadoop/yarn/server/webproxy/TestFedAppReportFetcher.java: ########## @@ -0,0 +1,170 @@ +/** + * 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 + * <p> + * http://www.apache.org/licenses/LICENSE-2.0 + * <p> + * 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.webproxy; + +import java.io.IOException; + +import org.apache.hadoop.conf.Configuration; +import org.apache.hadoop.test.LambdaTestUtils; +import org.apache.hadoop.yarn.api.ApplicationClientProtocol; +import org.apache.hadoop.yarn.api.ApplicationHistoryProtocol; +import org.apache.hadoop.yarn.api.protocolrecords.GetApplicationReportRequest; +import org.apache.hadoop.yarn.api.protocolrecords.GetApplicationReportResponse; +import org.apache.hadoop.yarn.api.records.ApplicationId; +import org.apache.hadoop.yarn.conf.YarnConfiguration; +import org.apache.hadoop.yarn.exceptions.ApplicationNotFoundException; +import org.apache.hadoop.yarn.exceptions.YarnException; +import org.apache.hadoop.yarn.server.federation.store.FederationStateStore; +import org.apache.hadoop.yarn.server.federation.store.impl.MemoryFederationStateStore; +import org.apache.hadoop.yarn.server.federation.store.records.AddApplicationHomeSubClusterRequest; +import org.apache.hadoop.yarn.server.federation.store.records.ApplicationHomeSubCluster; +import org.apache.hadoop.yarn.server.federation.store.records.SubClusterId; +import org.apache.hadoop.yarn.server.federation.store.records.SubClusterInfo; +import org.apache.hadoop.yarn.server.federation.store.records.SubClusterRegisterRequest; +import org.apache.hadoop.yarn.server.federation.store.records.SubClusterState; +import org.apache.hadoop.yarn.server.federation.utils.FederationStateStoreFacade; +import org.apache.hadoop.yarn.util.StringHelper; +import org.apache.hadoop.yarn.webapp.util.WebAppUtils; +import org.junit.After; +import org.junit.Assert; +import org.junit.Test; +import org.mockito.Mockito; + +import static org.junit.Assert.fail; + +public class TestFedAppReportFetcher { + + private Configuration conf; + private static ApplicationHistoryProtocol history; + + private SubClusterId subClusterId1 = SubClusterId.newInstance("subCluster1"); + private SubClusterId subClusterId2 = SubClusterId.newInstance("subCluster2"); + private SubClusterInfo clusterInfo1 = SubClusterInfo.newInstance(subClusterId1, "10.0.0.1:1000", + "10.0.0.1:1000", "10.0.0.1:1000", "10.0.0.1:1000", SubClusterState.SC_RUNNING, 0L, ""); + private SubClusterInfo clusterInfo2 = SubClusterInfo.newInstance(subClusterId2, "10.0.0.2:1000", + "10.0.0.2:1000", "10.0.0.2:1000", "10.0.0.2:1000", SubClusterState.SC_RUNNING, 0L, ""); + private ApplicationClientProtocol appManager1; + private ApplicationClientProtocol appManager2; + private ApplicationId appId1 = ApplicationId.newInstance(0, 1); + private ApplicationId appId2 = ApplicationId.newInstance(0, 2); + + private static FedAppReportFetcher fetcher; + private final String appNotFoundExceptionMsg = "APP NOT FOUND"; + + @After + public void cleanUp() { + history = null; + fetcher = null; + } + + private void testHelper(boolean isAHSEnabled) + throws YarnException, IOException { + conf = new YarnConfiguration(); + conf.setBoolean(YarnConfiguration.APPLICATION_HISTORY_ENABLED, isAHSEnabled); + + FederationStateStoreFacade fedFacade = FederationStateStoreFacade.getInstance(); + FederationStateStore fss = new MemoryFederationStateStore(); + fss.init(conf); + fedFacade.reinitialize(fss, conf); + + fss.registerSubCluster(SubClusterRegisterRequest.newInstance(clusterInfo1)); + fss.registerSubCluster(SubClusterRegisterRequest.newInstance(clusterInfo2)); + fss.addApplicationHomeSubCluster(AddApplicationHomeSubClusterRequest + .newInstance(ApplicationHomeSubCluster.newInstance(appId1, subClusterId1))); + fss.addApplicationHomeSubCluster(AddApplicationHomeSubClusterRequest + .newInstance(ApplicationHomeSubCluster.newInstance(appId2, subClusterId2))); + + appManager1 = Mockito.mock(ApplicationClientProtocol.class); + Mockito.when(appManager1.getApplicationReport(Mockito.any(GetApplicationReportRequest.class))) + .thenThrow(new ApplicationNotFoundException(appNotFoundExceptionMsg)); + + appManager2 = Mockito.mock(ApplicationClientProtocol.class); + Mockito.when(appManager2.getApplicationReport(Mockito.any(GetApplicationReportRequest.class))) + .thenThrow(new ApplicationNotFoundException(appNotFoundExceptionMsg)); + + fetcher = new TestFedAppReportFetcher.FedAppReportFetcherForTest(conf); + fetcher.registerSubCluster(clusterInfo1, appManager1); + fetcher.registerSubCluster(clusterInfo2, appManager2); + } + + @Test + public void testFetchReportAHSEnabled() throws YarnException, IOException { + testHelper(true); + fetcher.getApplicationReport(appId1); + fetcher.getApplicationReport(appId2); + Mockito.verify(history, Mockito.times(2)) + .getApplicationReport(Mockito.any(GetApplicationReportRequest.class)); + Mockito.verify(appManager1, Mockito.times(1)) + .getApplicationReport(Mockito.any(GetApplicationReportRequest.class)); + Mockito.verify(appManager2, Mockito.times(1)) + .getApplicationReport(Mockito.any(GetApplicationReportRequest.class)); + } + + @Test + public void testFetchReportAHSDisabled() throws Exception { + testHelper(false); + + /* RM will not know of the app and Application History Service is disabled + * So we will not try to get the report from AHS and RM will throw + * ApplicationNotFoundException + */ + LambdaTestUtils.intercept(ApplicationNotFoundException.class, appNotFoundExceptionMsg, + () -> fetcher.getApplicationReport(appId1)); + LambdaTestUtils.intercept(ApplicationNotFoundException.class, appNotFoundExceptionMsg, + () -> fetcher.getApplicationReport(appId2)); + + Mockito.verify(appManager1, Mockito.times(1)) + .getApplicationReport(Mockito.any(GetApplicationReportRequest.class)); + Mockito.verify(appManager2, Mockito.times(1)) + .getApplicationReport(Mockito.any(GetApplicationReportRequest.class)); + Assert.assertNull("HistoryManager should be null as AHS is disabled", history); + } + + @Test + public void testGetRmAppPageUrlBase() throws IOException, YarnException { + testHelper(true); + String scheme = WebAppUtils.getHttpSchemePrefix(conf); + Assert.assertEquals(fetcher.getRmAppPageUrlBase(appId1), + StringHelper.pjoin(scheme + clusterInfo1.getRMWebServiceAddress(), "cluster", "app")); + Assert.assertEquals(fetcher.getRmAppPageUrlBase(appId2), + StringHelper.pjoin(scheme + clusterInfo2.getRMWebServiceAddress(), "cluster", "app")); + } + + static class FedAppReportFetcherForTest extends FedAppReportFetcher { + + FedAppReportFetcherForTest(Configuration conf) { + super(conf); + } + + @Override + protected ApplicationHistoryProtocol getAHSProxy(Configuration conf) + throws IOException { + GetApplicationReportResponse resp = Mockito.mock(GetApplicationReportResponse.class); + history = Mockito.mock(ApplicationHistoryProtocol.class); + try { + Mockito.when(history.getApplicationReport(Mockito.any(GetApplicationReportRequest.class))) + .thenReturn(resp); + } catch (YarnException e) { + // This should never happen + fail("Found exception when getApplicationReport!"); + } + return history; + } + } + Review Comment: remove blank lines. -- This is an automated message from the Apache Git Service. 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