| /* |
| * 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.drill.yarn.zk; |
| |
| import static org.junit.Assert.assertTrue; |
| import static org.junit.Assert.fail; |
| |
| import org.apache.curator.test.TestingServer; |
| import org.apache.drill.test.BaseTest; |
| import org.apache.drill.yarn.appMaster.AMRegistrar.AMRegistrationException; |
| import org.junit.Test; |
| |
| public class TestAmRegistration extends BaseTest { |
| private static final String TEST_CLUSTER_ID = "drillbits"; |
| private static final String TEST_ZK_ROOT = "drill"; |
| private static final String TEST_AM_HOST = "localhost"; |
| private static final int TEST_AM_PORT = 8048; |
| private static final String TEST_APP_ID = "Application_001"; |
| |
| private static final String PROBE_AM_HOST = "somehost"; |
| private static final String PROBE_APP_ID = "Application_002"; |
| private static final int PROBE_AM_PORT = 8049; |
| private static final String PROBE_CLUSTER_ID = "second"; |
| private static final String PROBE_ZK_ROOT = "myRoot"; |
| |
| @Test |
| public void testAMRegistry() throws Exception { |
| try (TestingServer server = new TestingServer()) { |
| server.start(); |
| String connStr = server.getConnectString(); |
| ZKClusterCoordinatorDriver driver = new ZKClusterCoordinatorDriver() |
| .setConnect(connStr, TEST_ZK_ROOT, TEST_CLUSTER_ID).build(); |
| |
| // Register an AM using the above. |
| |
| driver.register(TEST_AM_HOST, TEST_AM_PORT, TEST_APP_ID); |
| |
| // Simulate a second AM for the same cluster. |
| |
| { |
| ZKClusterCoordinatorDriver driver2 = new ZKClusterCoordinatorDriver() |
| .setConnect(connStr, TEST_ZK_ROOT, TEST_CLUSTER_ID).build(); |
| |
| // Register an AM on the same (root, cluster id). |
| |
| try { |
| driver.register(PROBE_AM_HOST, PROBE_AM_PORT, PROBE_APP_ID); |
| fail(); |
| } catch (AMRegistrationException e) { |
| String msg = e.getMessage(); |
| assertTrue(msg.contains("Application Master already exists")); |
| assertTrue( |
| msg.contains(" " + TEST_ZK_ROOT + "/" + TEST_CLUSTER_ID + " ")); |
| assertTrue(msg.contains(" host: " + TEST_AM_HOST)); |
| assertTrue(msg.contains(" Application ID: " + TEST_APP_ID)); |
| } |
| |
| driver2.close(); |
| } |
| |
| { |
| ZKClusterCoordinatorDriver driver2 = new ZKClusterCoordinatorDriver() |
| .setConnect(connStr, TEST_ZK_ROOT, PROBE_CLUSTER_ID).build(); |
| |
| // Register an AM on a different cluster id, same root. |
| |
| try { |
| driver2.register(PROBE_AM_HOST, PROBE_AM_PORT, PROBE_APP_ID); |
| } catch (AMRegistrationException e) { |
| fail("Registration should be OK"); |
| } |
| |
| driver2.close(); |
| } |
| |
| { |
| ZKClusterCoordinatorDriver driver2 = new ZKClusterCoordinatorDriver() |
| .setConnect(connStr, PROBE_ZK_ROOT, TEST_CLUSTER_ID).build(); |
| |
| // Register an AM on a different root. |
| |
| try { |
| driver2.register(PROBE_AM_HOST, PROBE_AM_PORT, PROBE_APP_ID); |
| } catch (AMRegistrationException e) { |
| fail("Registration should be OK"); |
| } |
| |
| driver2.close(); |
| } |
| |
| // First AM exits. |
| |
| driver.close(); |
| |
| { |
| // Should be able to register an AM for the same cluster. |
| |
| ZKClusterCoordinatorDriver driver2 = new ZKClusterCoordinatorDriver() |
| .setConnect(connStr, TEST_ZK_ROOT, TEST_CLUSTER_ID).build(); |
| |
| // Register an AM on the same (root, cluster id). |
| |
| try { |
| driver2.register(PROBE_AM_HOST, PROBE_AM_PORT, PROBE_APP_ID); |
| } catch (AMRegistrationException e) { |
| fail("Registration should be OK"); |
| } |
| |
| driver2.close(); |
| } |
| |
| server.stop(); |
| } |
| } |
| |
| } |