| /* |
| * 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; |
| |
| import org.junit.Assert; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.hadoop.security.UserGroupInformation; |
| import org.apache.hadoop.yarn.api.records.ApplicationId; |
| import org.apache.hadoop.yarn.api.records.ApplicationReport; |
| import org.apache.hadoop.yarn.api.records.YarnApplicationState; |
| import org.apache.hadoop.yarn.conf.YarnConfiguration; |
| import org.apache.hadoop.yarn.exceptions.ApplicationNotFoundException; |
| import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMApp; |
| import org.junit.Test; |
| |
| |
| public class TestSubmitApplicationWithRMHA extends RMHATestBase{ |
| |
| public static final Log LOG = LogFactory |
| .getLog(TestSubmitApplicationWithRMHA.class); |
| |
| @Test |
| public void |
| testHandleRMHABeforeSubmitApplicationCallWithSavedApplicationState() |
| throws Exception { |
| // start two RMs, and transit rm1 to active, rm2 to standby |
| startRMs(); |
| |
| // get a new applicationId from rm1 |
| ApplicationId appId = rm1.getNewAppId().getApplicationId(); |
| |
| // Do the failover |
| explicitFailover(); |
| |
| // submit the application with previous assigned applicationId |
| // to current active rm: rm2 |
| RMApp app1 = |
| rm2.submitApp(200, "", UserGroupInformation |
| .getCurrentUser().getShortUserName(), null, false, null, |
| configuration.getInt(YarnConfiguration.RM_AM_MAX_ATTEMPTS, |
| YarnConfiguration.DEFAULT_RM_AM_MAX_ATTEMPTS), null, null, |
| false, false, true, appId); |
| |
| // verify application submission |
| verifySubmitApp(rm2, app1, appId); |
| } |
| |
| private void verifySubmitApp(MockRM rm, RMApp app, |
| ApplicationId expectedAppId) throws Exception { |
| int maxWaittingTimes = 20; |
| int count = 0; |
| while (true) { |
| YarnApplicationState state = |
| rm.getApplicationReport(app.getApplicationId()) |
| .getYarnApplicationState(); |
| if (!state.equals(YarnApplicationState.NEW) && |
| !state.equals(YarnApplicationState.NEW_SAVING)) { |
| break; |
| } |
| if (count > maxWaittingTimes) { |
| break; |
| } |
| Thread.sleep(200); |
| count++; |
| } |
| // Verify submittion is successful |
| YarnApplicationState state = |
| rm.getApplicationReport(app.getApplicationId()) |
| .getYarnApplicationState(); |
| Assert.assertTrue(state == YarnApplicationState.ACCEPTED |
| || state == YarnApplicationState.SUBMITTED); |
| Assert.assertEquals(expectedAppId, app.getApplicationId()); |
| } |
| |
| // There are two scenarios when RM failover happens |
| // after SubmitApplication Call: |
| // 1) RMStateStore already saved the ApplicationState when failover happens |
| // 2) RMStateStore did not save the ApplicationState when failover happens |
| |
| @Test |
| public void |
| testHandleRMHAafterSubmitApplicationCallWithSavedApplicationState() |
| throws Exception { |
| // Test scenario 1 when RM failover happens |
| // after SubmitApplication Call: |
| // RMStateStore already saved the ApplicationState when failover happens |
| startRMs(); |
| |
| // Submit Application |
| // After submission, the applicationState will be saved in RMStateStore. |
| RMApp app0 = rm1.submitApp(200); |
| |
| // Do the failover |
| explicitFailover(); |
| |
| // Since the applicationState has already been saved in RMStateStore |
| // before failover happens, the current active rm can load the previous |
| // applicationState. |
| ApplicationReport appReport = |
| rm2.getApplicationReport(app0.getApplicationId()); |
| |
| // verify previous submission is successful. |
| Assert.assertTrue(appReport.getYarnApplicationState() |
| == YarnApplicationState.ACCEPTED || |
| appReport.getYarnApplicationState() |
| == YarnApplicationState.SUBMITTED); |
| } |
| |
| @Test |
| public void |
| testHandleRMHAafterSubmitApplicationCallWithoutSavedApplicationState() |
| throws Exception { |
| // Test scenario 2 when RM failover happens |
| // after SubmitApplication Call: |
| // RMStateStore did not save the ApplicationState when failover happens. |
| // Using customized RMAppManager. |
| startRMsWithCustomizedRMAppManager(); |
| |
| // Submit Application |
| // After submission, the applicationState will |
| // not be saved in RMStateStore |
| RMApp app0 = |
| rm1.submitApp(200, "", UserGroupInformation |
| .getCurrentUser().getShortUserName(), null, false, null, |
| configuration.getInt(YarnConfiguration.RM_AM_MAX_ATTEMPTS, |
| YarnConfiguration.DEFAULT_RM_AM_MAX_ATTEMPTS), null, null, |
| false, false); |
| |
| // Do the failover |
| explicitFailover(); |
| |
| // Since the applicationState is not saved in RMStateStore |
| // when failover happens. The current active RM can not load |
| // previous applicationState. |
| // Expect ApplicationNotFoundException by calling getApplicationReport(). |
| try { |
| rm2.getApplicationReport(app0.getApplicationId()); |
| Assert.fail("Should get ApplicationNotFoundException here"); |
| } catch (ApplicationNotFoundException ex) { |
| // expected ApplicationNotFoundException |
| } |
| |
| // Submit the application with previous ApplicationId to current active RM |
| // This will mimic the similar behavior of YarnClient which will re-submit |
| // Application with previous applicationId |
| // when catches the ApplicationNotFoundException |
| RMApp app1 = |
| rm2.submitApp(200, "", UserGroupInformation |
| .getCurrentUser().getShortUserName(), null, false, null, |
| configuration.getInt(YarnConfiguration.RM_AM_MAX_ATTEMPTS, |
| YarnConfiguration.DEFAULT_RM_AM_MAX_ATTEMPTS), null, null, |
| false, false, true, app0.getApplicationId()); |
| |
| verifySubmitApp(rm2, app1, app0.getApplicationId()); |
| } |
| |
| /** |
| * Test multiple calls of getApplicationReport, to make sure |
| * it is idempotent |
| */ |
| @Test |
| public void testGetApplicationReportIdempotent() throws Exception{ |
| // start two RMs, and transit rm1 to active, rm2 to standby |
| startRMs(); |
| |
| // Submit Application |
| // After submission, the applicationState will be saved in RMStateStore. |
| RMApp app = rm1.submitApp(200); |
| |
| ApplicationReport appReport1 = |
| rm1.getApplicationReport(app.getApplicationId()); |
| Assert.assertTrue(appReport1.getYarnApplicationState() == |
| YarnApplicationState.ACCEPTED || |
| appReport1.getYarnApplicationState() == |
| YarnApplicationState.SUBMITTED); |
| |
| // call getApplicationReport again |
| ApplicationReport appReport2 = |
| rm1.getApplicationReport(app.getApplicationId()); |
| Assert.assertEquals(appReport1.getApplicationId(), |
| appReport2.getApplicationId()); |
| Assert.assertEquals(appReport1.getYarnApplicationState(), |
| appReport2.getYarnApplicationState()); |
| |
| // Do the failover |
| explicitFailover(); |
| |
| // call getApplicationReport |
| ApplicationReport appReport3 = |
| rm2.getApplicationReport(app.getApplicationId()); |
| Assert.assertEquals(appReport1.getApplicationId(), |
| appReport3.getApplicationId()); |
| Assert.assertEquals(appReport1.getYarnApplicationState(), |
| appReport3.getYarnApplicationState()); |
| |
| // call getApplicationReport again |
| ApplicationReport appReport4 = |
| rm2.getApplicationReport(app.getApplicationId()); |
| Assert.assertEquals(appReport3.getApplicationId(), |
| appReport4.getApplicationId()); |
| Assert.assertEquals(appReport3.getYarnApplicationState(), |
| appReport4.getYarnApplicationState()); |
| } |
| |
| // There are two scenarios when RM failover happens |
| // during SubmitApplication Call: |
| // 1) RMStateStore already saved the ApplicationState when failover happens |
| // 2) RMStateStore did not save the ApplicationState when failover happens |
| @Test (timeout = 50000) |
| public void |
| testHandleRMHADuringSubmitApplicationCallWithSavedApplicationState() |
| throws Exception { |
| // Test scenario 1 when RM failover happens |
| // druing SubmitApplication Call: |
| // RMStateStore already saved the ApplicationState when failover happens |
| startRMs(); |
| |
| // Submit Application |
| // After submission, the applicationState will be saved in RMStateStore. |
| RMApp app0 = rm1.submitApp(200); |
| |
| // Do the failover |
| explicitFailover(); |
| |
| // Since the applicationState has already been saved in RMStateStore |
| // before failover happens, the current active rm can load the previous |
| // applicationState. |
| // This RMApp should exist in the RMContext of current active RM |
| Assert.assertTrue(rm2.getRMContext().getRMApps() |
| .containsKey(app0.getApplicationId())); |
| |
| // When we re-submit the application with same applicationId, it will |
| // check whether this application has been exist. If yes, just simply |
| // return submitApplicationResponse. |
| RMApp app1 = |
| rm2.submitApp(200, "", UserGroupInformation |
| .getCurrentUser().getShortUserName(), null, false, null, |
| configuration.getInt(YarnConfiguration.RM_AM_MAX_ATTEMPTS, |
| YarnConfiguration.DEFAULT_RM_AM_MAX_ATTEMPTS), null, null, |
| false, false, true, app0.getApplicationId()); |
| |
| Assert.assertEquals(app1.getApplicationId(), app0.getApplicationId()); |
| } |
| |
| @Test (timeout = 50000) |
| public void |
| testHandleRMHADuringSubmitApplicationCallWithoutSavedApplicationState() |
| throws Exception { |
| // Test scenario 2 when RM failover happens |
| // during SubmitApplication Call: |
| // RMStateStore did not save the ApplicationState when failover happens. |
| // Using customized RMAppManager. |
| startRMsWithCustomizedRMAppManager(); |
| |
| // Submit Application |
| // After submission, the applicationState will |
| // not be saved in RMStateStore |
| RMApp app0 = |
| rm1.submitApp(200, "", UserGroupInformation |
| .getCurrentUser().getShortUserName(), null, false, null, |
| configuration.getInt(YarnConfiguration.RM_AM_MAX_ATTEMPTS, |
| YarnConfiguration.DEFAULT_RM_AM_MAX_ATTEMPTS), null, null, |
| false, false); |
| |
| // Do the failover |
| explicitFailover(); |
| |
| // When failover happens, the RMStateStore has not saved applicationState. |
| // The applicationState of this RMApp is lost. |
| // We should not find the RMApp in the RMContext of current active rm. |
| Assert.assertFalse(rm2.getRMContext().getRMApps() |
| .containsKey(app0.getApplicationId())); |
| |
| // Submit the application with previous ApplicationId to current active RM |
| // This will mimic the similar behavior of ApplicationClientProtocol# |
| // submitApplication() when failover happens during the submission process |
| // because the submitApplication api is marked as idempotent |
| RMApp app1 = |
| rm2.submitApp(200, "", UserGroupInformation |
| .getCurrentUser().getShortUserName(), null, false, null, |
| configuration.getInt(YarnConfiguration.RM_AM_MAX_ATTEMPTS, |
| YarnConfiguration.DEFAULT_RM_AM_MAX_ATTEMPTS), null, null, |
| false, false, true, app0.getApplicationId()); |
| |
| verifySubmitApp(rm2, app1, app0.getApplicationId()); |
| Assert.assertTrue(rm2.getRMContext().getRMApps() |
| .containsKey(app0.getApplicationId())); |
| } |
| } |
