| /** |
| * 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.hbase.master; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import org.apache.hadoop.hbase.HBaseClassTestRule; |
| import org.apache.hadoop.hbase.ServerName; |
| import org.apache.hadoop.hbase.testclassification.MasterTests; |
| import org.apache.hadoop.hbase.testclassification.SmallTests; |
| import org.apache.hadoop.hbase.util.EnvironmentEdgeManager; |
| import org.apache.hadoop.hbase.util.ManualEnvironmentEdge; |
| import org.apache.hadoop.hbase.util.Pair; |
| import org.junit.Assert; |
| import org.junit.Before; |
| import org.junit.ClassRule; |
| import org.junit.Test; |
| import org.junit.experimental.categories.Category; |
| |
| @Category({MasterTests.class, SmallTests.class}) // Plays with the ManualEnvironmentEdge |
| public class TestClusterStatusPublisher { |
| |
| @ClassRule |
| public static final HBaseClassTestRule CLASS_RULE = |
| HBaseClassTestRule.forClass(TestClusterStatusPublisher.class); |
| |
| private ManualEnvironmentEdge mee = new ManualEnvironmentEdge(); |
| |
| @Before |
| public void before() { |
| mee.setValue(0); |
| EnvironmentEdgeManager.injectEdge(mee); |
| } |
| |
| @Test |
| public void testEmpty() { |
| ClusterStatusPublisher csp = new ClusterStatusPublisher() { |
| @Override |
| protected List<Pair<ServerName, Long>> getDeadServers(long since) { |
| return new ArrayList<>(); |
| } |
| }; |
| |
| Assert.assertTrue(csp.generateDeadServersListToSend().isEmpty()); |
| } |
| |
| @Test |
| public void testMaxSend() { |
| ClusterStatusPublisher csp = new ClusterStatusPublisher() { |
| @SuppressWarnings("MissingDefault") |
| @Override |
| protected List<Pair<ServerName, Long>> getDeadServers(long since) { |
| List<Pair<ServerName, Long>> res = new ArrayList<>(); |
| switch ((int) EnvironmentEdgeManager.currentTime()) { |
| case 2: |
| res.add(new Pair<>(ServerName.valueOf("hn", 10, 10), 1L)); |
| break; |
| case 1000: |
| break; |
| } |
| |
| return res; |
| } |
| }; |
| |
| mee.setValue(2); |
| for (int i = 0; i < ClusterStatusPublisher.NB_SEND; i++) { |
| Assert.assertEquals("i=" + i, 1, csp.generateDeadServersListToSend().size()); |
| } |
| mee.setValue(1000); |
| Assert.assertTrue(csp.generateDeadServersListToSend().isEmpty()); |
| } |
| |
| @Test |
| public void testOrder() { |
| ClusterStatusPublisher csp = new ClusterStatusPublisher() { |
| @Override |
| protected List<Pair<ServerName, Long>> getDeadServers(long since) { |
| List<Pair<ServerName, Long>> res = new ArrayList<>(); |
| for (int i = 0; i < 25; i++) { |
| res.add(new Pair<>(ServerName.valueOf("hn" + i, 10, 10), 20L)); |
| } |
| |
| return res; |
| } |
| }; |
| |
| |
| mee.setValue(3); |
| List<ServerName> allSNS = csp.generateDeadServersListToSend(); |
| |
| Assert.assertEquals(10, ClusterStatusPublisher.MAX_SERVER_PER_MESSAGE); |
| Assert.assertEquals(10, allSNS.size()); |
| |
| List<ServerName> nextMes = csp.generateDeadServersListToSend(); |
| Assert.assertEquals(10, nextMes.size()); |
| for (ServerName sn : nextMes) { |
| if (!allSNS.contains(sn)) { |
| allSNS.add(sn); |
| } |
| } |
| Assert.assertEquals(20, allSNS.size()); |
| |
| nextMes = csp.generateDeadServersListToSend(); |
| Assert.assertEquals(10, nextMes.size()); |
| for (ServerName sn : nextMes) { |
| if (!allSNS.contains(sn)) { |
| allSNS.add(sn); |
| } |
| } |
| Assert.assertEquals(25, allSNS.size()); |
| |
| nextMes = csp.generateDeadServersListToSend(); |
| Assert.assertEquals(10, nextMes.size()); |
| for (ServerName sn : nextMes) { |
| if (!allSNS.contains(sn)) { |
| allSNS.add(sn); |
| } |
| } |
| Assert.assertEquals(25, allSNS.size()); |
| } |
| } |