| /** |
| * 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.federation.utils; |
| |
| import javax.cache.integration.CacheLoaderException; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.io.retry.RetryPolicy; |
| import org.apache.hadoop.io.retry.RetryPolicy.RetryAction; |
| import org.apache.hadoop.yarn.conf.YarnConfiguration; |
| import org.apache.hadoop.yarn.exceptions.YarnException; |
| import org.apache.hadoop.yarn.server.federation.store.exception.FederationStateStoreException; |
| import org.apache.hadoop.yarn.server.federation.store.exception.FederationStateStoreInvalidInputException; |
| import org.apache.hadoop.yarn.server.federation.store.exception.FederationStateStoreRetriableException; |
| import org.junit.Assert; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| import com.zaxxer.hikari.pool.HikariPool.PoolInitializationException; |
| |
| /** |
| * Test class to validate FederationStateStoreFacade retry policy. |
| */ |
| public class TestFederationStateStoreFacadeRetry { |
| |
| private int maxRetries = 4; |
| private Configuration conf; |
| |
| @Before |
| public void setup() { |
| conf = new Configuration(); |
| conf.setInt(YarnConfiguration.CLIENT_FAILOVER_RETRIES, maxRetries); |
| } |
| |
| /* |
| * Test to validate that FederationStateStoreRetriableException is a retriable |
| * exception. |
| */ |
| @Test |
| public void testFacadeRetriableException() throws Exception { |
| RetryPolicy policy = FederationStateStoreFacade.createRetryPolicy(conf); |
| RetryAction action = policy.shouldRetry( |
| new FederationStateStoreRetriableException(""), 0, 0, false); |
| // We compare only the action, since delay and the reason are random values |
| // during this test |
| Assert.assertEquals(RetryAction.RETRY.action, action.action); |
| |
| // After maxRetries we stop to retry |
| action = policy.shouldRetry(new FederationStateStoreRetriableException(""), |
| maxRetries, 0, false); |
| Assert.assertEquals(RetryAction.FAIL.action, action.action); |
| } |
| |
| /* |
| * Test to validate that YarnException is not a retriable exception. |
| */ |
| @Test |
| public void testFacadeYarnException() throws Exception { |
| RetryPolicy policy = FederationStateStoreFacade.createRetryPolicy(conf); |
| RetryAction action = policy.shouldRetry(new YarnException(), 0, 0, false); |
| Assert.assertEquals(RetryAction.FAIL.action, action.action); |
| } |
| |
| /* |
| * Test to validate that FederationStateStoreException is not a retriable |
| * exception. |
| */ |
| @Test |
| public void testFacadeStateStoreException() throws Exception { |
| RetryPolicy policy = FederationStateStoreFacade.createRetryPolicy(conf); |
| RetryAction action = policy |
| .shouldRetry(new FederationStateStoreException("Error"), 0, 0, false); |
| Assert.assertEquals(RetryAction.FAIL.action, action.action); |
| } |
| |
| /* |
| * Test to validate that FederationStateStoreInvalidInputException is not a |
| * retriable exception. |
| */ |
| @Test |
| public void testFacadeInvalidInputException() throws Exception { |
| RetryPolicy policy = FederationStateStoreFacade.createRetryPolicy(conf); |
| RetryAction action = policy.shouldRetry( |
| new FederationStateStoreInvalidInputException(""), 0, 0, false); |
| Assert.assertEquals(RetryAction.FAIL.action, action.action); |
| } |
| |
| /* |
| * Test to validate that CacheLoaderException is a retriable exception. |
| */ |
| @Test |
| public void testFacadeCacheRetriableException() throws Exception { |
| RetryPolicy policy = FederationStateStoreFacade.createRetryPolicy(conf); |
| RetryAction action = |
| policy.shouldRetry(new CacheLoaderException(""), 0, 0, false); |
| // We compare only the action, since delay and the reason are random values |
| // during this test |
| Assert.assertEquals(RetryAction.RETRY.action, action.action); |
| |
| // After maxRetries we stop to retry |
| action = |
| policy.shouldRetry(new CacheLoaderException(""), maxRetries, 0, false); |
| Assert.assertEquals(RetryAction.FAIL.action, action.action); |
| } |
| |
| /* |
| * Test to validate that PoolInitializationException is a retriable exception. |
| */ |
| @Test |
| public void testFacadePoolInitRetriableException() throws Exception { |
| // PoolInitializationException is a retriable exception |
| RetryPolicy policy = FederationStateStoreFacade.createRetryPolicy(conf); |
| RetryAction action = policy.shouldRetry( |
| new PoolInitializationException(new YarnException()), 0, 0, false); |
| // We compare only the action, delay and the reason are random value |
| // during this test |
| Assert.assertEquals(RetryAction.RETRY.action, action.action); |
| |
| // After maxRetries we stop to retry |
| action = |
| policy.shouldRetry(new PoolInitializationException(new YarnException()), |
| maxRetries, 0, false); |
| Assert.assertEquals(RetryAction.FAIL.action, action.action); |
| } |
| } |