| /** |
| * 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.federation.resolver; |
| |
| import java.io.File; |
| import java.net.URL; |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| import org.apache.hadoop.yarn.conf.YarnConfiguration; |
| import org.apache.hadoop.yarn.exceptions.YarnException; |
| import org.apache.hadoop.yarn.server.federation.store.records.SubClusterId; |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| /** |
| * Test {@link SubClusterResolver} against correct and malformed Federation |
| * machine lists. |
| */ |
| public class TestDefaultSubClusterResolver { |
| private static YarnConfiguration conf; |
| private static SubClusterResolver resolver; |
| |
| public static void setUpGoodFile() { |
| conf = new YarnConfiguration(); |
| resolver = new DefaultSubClusterResolverImpl(); |
| |
| URL url = |
| Thread.currentThread().getContextClassLoader().getResource("nodes"); |
| if (url == null) { |
| throw new RuntimeException( |
| "Could not find 'nodes' dummy file in classpath"); |
| } |
| // This will get rid of the beginning '/' in the url in Windows env |
| File file = new File(url.getPath()); |
| |
| conf.set(YarnConfiguration.FEDERATION_MACHINE_LIST, file.getPath()); |
| resolver.setConf(conf); |
| resolver.load(); |
| } |
| |
| private void setUpMalformedFile() { |
| conf = new YarnConfiguration(); |
| resolver = new DefaultSubClusterResolverImpl(); |
| |
| URL url = Thread.currentThread().getContextClassLoader() |
| .getResource("nodes-malformed"); |
| if (url == null) { |
| throw new RuntimeException( |
| "Could not find 'nodes-malformed' dummy file in classpath"); |
| } |
| // This will get rid of the beginning '/' in the url in Windows env |
| File file = new File(url.getPath()); |
| |
| conf.set(YarnConfiguration.FEDERATION_MACHINE_LIST, file.getPath()); |
| resolver.setConf(conf); |
| resolver.load(); |
| } |
| |
| private void setUpNonExistentFile() { |
| conf = new YarnConfiguration(); |
| resolver = new DefaultSubClusterResolverImpl(); |
| |
| conf.set(YarnConfiguration.FEDERATION_MACHINE_LIST, "fileDoesNotExist"); |
| resolver.setConf(conf); |
| resolver.load(); |
| } |
| |
| @Test |
| public void testGetSubClusterForNode() throws YarnException { |
| setUpGoodFile(); |
| |
| // All lowercase, no whitespace in machine list file |
| Assert.assertEquals(SubClusterId.newInstance("subcluster1"), |
| resolver.getSubClusterForNode("node1")); |
| // Leading and trailing whitespace in machine list file |
| Assert.assertEquals(SubClusterId.newInstance("subcluster2"), |
| resolver.getSubClusterForNode("node2")); |
| // Node name capitalization in machine list file |
| Assert.assertEquals(SubClusterId.newInstance("subcluster3"), |
| resolver.getSubClusterForNode("node3")); |
| |
| try { |
| resolver.getSubClusterForNode("nodeDoesNotExist"); |
| Assert.fail(); |
| } catch (YarnException e) { |
| Assert.assertTrue( |
| e.getMessage().startsWith("Cannot find subClusterId for node")); |
| } |
| } |
| |
| @Test |
| public void testGetSubClusterForNodeMalformedFile() throws YarnException { |
| setUpMalformedFile(); |
| |
| try { |
| resolver.getSubClusterForNode("node1"); |
| Assert.fail(); |
| } catch (YarnException e) { |
| Assert.assertTrue( |
| e.getMessage().startsWith("Cannot find subClusterId for node")); |
| } |
| |
| try { |
| resolver.getSubClusterForNode("node2"); |
| Assert.fail(); |
| } catch (YarnException e) { |
| Assert.assertTrue( |
| e.getMessage().startsWith("Cannot find subClusterId for node")); |
| } |
| |
| Assert.assertEquals(SubClusterId.newInstance("subcluster3"), |
| resolver.getSubClusterForNode("node3")); |
| |
| try { |
| resolver.getSubClusterForNode("nodeDoesNotExist"); |
| Assert.fail(); |
| } catch (YarnException e) { |
| Assert.assertTrue( |
| e.getMessage().startsWith("Cannot find subClusterId for node")); |
| } |
| } |
| |
| @Test |
| public void testGetSubClusterForNodeNoFile() throws YarnException { |
| setUpNonExistentFile(); |
| |
| try { |
| resolver.getSubClusterForNode("node1"); |
| Assert.fail(); |
| } catch (YarnException e) { |
| Assert.assertTrue( |
| e.getMessage().startsWith("Cannot find subClusterId for node")); |
| } |
| } |
| |
| @Test |
| public void testGetSubClustersForRack() throws YarnException { |
| setUpGoodFile(); |
| |
| Set<SubClusterId> rack1Expected = new HashSet<SubClusterId>(); |
| rack1Expected.add(SubClusterId.newInstance("subcluster1")); |
| rack1Expected.add(SubClusterId.newInstance("subcluster2")); |
| |
| Set<SubClusterId> rack2Expected = new HashSet<SubClusterId>(); |
| rack2Expected.add(SubClusterId.newInstance("subcluster3")); |
| |
| // Two subclusters have nodes in rack1 |
| Assert.assertEquals(rack1Expected, resolver.getSubClustersForRack("rack1")); |
| |
| // Two nodes are in rack2, but both belong to subcluster3 |
| Assert.assertEquals(rack2Expected, resolver.getSubClustersForRack("rack2")); |
| |
| try { |
| resolver.getSubClustersForRack("rackDoesNotExist"); |
| Assert.fail(); |
| } catch (YarnException e) { |
| Assert.assertTrue(e.getMessage().startsWith("Cannot resolve rack")); |
| } |
| } |
| |
| @Test |
| public void testGetSubClustersForRackNoFile() throws YarnException { |
| setUpNonExistentFile(); |
| |
| try { |
| resolver.getSubClustersForRack("rack1"); |
| Assert.fail(); |
| } catch (YarnException e) { |
| Assert.assertTrue(e.getMessage().startsWith("Cannot resolve rack")); |
| } |
| } |
| } |