| /* |
| * 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.servicecomb.loadbalance; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.apache.servicecomb.core.Endpoint; |
| import org.apache.servicecomb.core.Invocation; |
| import org.apache.servicecomb.core.Transport; |
| import org.apache.servicecomb.foundation.test.scaffolding.config.ArchaiusUtils; |
| import org.apache.servicecomb.registry.api.registry.MicroserviceInstance; |
| import org.junit.Test; |
| |
| import com.netflix.loadbalancer.Server; |
| |
| import mockit.Deencapsulation; |
| import mockit.Expectations; |
| import mockit.Injectable; |
| import org.junit.jupiter.api.Assertions; |
| |
| public class TestLoadBalanceCreator { |
| @Test |
| public void testLoadBalanceWithRoundRobinRuleAndFilter(@Injectable Invocation invocation, |
| @Injectable Transport transport) { |
| // Robin components implementations require getReachableServers & getServerList have the same size, we add a test case for this. |
| RoundRobinRuleExt rule = new RoundRobinRuleExt(); |
| List<ServiceCombServer> servers = new ArrayList<>(); |
| Endpoint host1 = new Endpoint(transport, "host1"); |
| MicroserviceInstance instance1 = new MicroserviceInstance(); |
| instance1.setInstanceId("instance1"); |
| ServiceCombServer server = new ServiceCombServer(null, host1, instance1); |
| |
| Endpoint host2 = new Endpoint(transport, "host2"); |
| MicroserviceInstance instance2 = new MicroserviceInstance(); |
| instance2.setInstanceId("instance2"); |
| ServiceCombServer server2 = new ServiceCombServer(null, host2, instance2); |
| |
| servers.add(server); |
| servers.add(server2); |
| LoadBalancer lb = new LoadBalancer(rule, "test"); |
| |
| List<ServerListFilterExt> filters = new ArrayList<>(); |
| |
| filters.add((serverList, invocation1) -> { |
| List<ServiceCombServer> filteredServers = new ArrayList<>(); |
| for (ServiceCombServer server1 : servers) { |
| if (server1.getHost().equals("host1")) { |
| continue; |
| } |
| filteredServers.add(server1); |
| } |
| return filteredServers; |
| }); |
| lb.setFilters(filters); |
| |
| new Expectations() { |
| { |
| invocation.getLocalContext(LoadbalanceHandler.CONTEXT_KEY_SERVER_LIST); |
| result = servers; |
| } |
| }; |
| Server s = lb.chooseServer(invocation); |
| Assertions.assertEquals(server2, s); |
| s = lb.chooseServer(invocation); |
| Assertions.assertEquals(server2, s); |
| s = lb.chooseServer(invocation); |
| Assertions.assertEquals(server2, s); |
| } |
| |
| @Test |
| public void testLoadBalanceWithRandomRuleAndFilter(@Injectable Invocation invocation, |
| @Injectable Transport transport) { |
| // Robin components implementations require getReachableServers & getServerList have the same size, we add a test case for this. |
| RandomRuleExt rule = new RandomRuleExt(); |
| LoadBalancer lb = new LoadBalancer(rule, "service"); |
| |
| List<ServiceCombServer> servers = new ArrayList<>(); |
| Endpoint host1 = new Endpoint(transport, "host1"); |
| MicroserviceInstance instance1 = new MicroserviceInstance(); |
| instance1.setInstanceId("instance1"); |
| ServiceCombServer server = new ServiceCombServer(null, host1, instance1); |
| |
| Endpoint host2 = new Endpoint(transport, "host2"); |
| MicroserviceInstance instance2 = new MicroserviceInstance(); |
| instance2.setInstanceId("instance2"); |
| ServiceCombServer server2 = new ServiceCombServer(null, host2, instance2); |
| |
| servers.add(server); |
| servers.add(server2); |
| |
| List<ServerListFilterExt> filters = new ArrayList<>(); |
| filters.add((serverList, invocation1) -> { |
| List<ServiceCombServer> filteredServers = new ArrayList<>(); |
| for (ServiceCombServer server1 : servers) { |
| if (server1.getHost().equals("host1")) { |
| continue; |
| } |
| filteredServers.add(server1); |
| } |
| return filteredServers; |
| }); |
| lb.setFilters(filters); |
| new Expectations() { |
| { |
| invocation.getLocalContext(LoadbalanceHandler.CONTEXT_KEY_SERVER_LIST); |
| result = servers; |
| } |
| }; |
| Server s = lb.chooseServer(invocation); |
| Assertions.assertEquals(server2, s); |
| s = lb.chooseServer(invocation); |
| Assertions.assertEquals(server2, s); |
| s = lb.chooseServer(invocation); |
| Assertions.assertEquals(server2, s); |
| } |
| |
| @Test |
| public void testLoadBalanceWithWeightedResponseTimeRuleAndFilter(@Injectable Endpoint endpoint1, |
| @Injectable Endpoint endpoint2, @Injectable Invocation invocation) { |
| // Robin components implementations require getReachableServers & getServerList have the same size, we add a test case for this. |
| WeightedResponseTimeRuleExt rule = new WeightedResponseTimeRuleExt(); |
| LoadBalancer lb = new LoadBalancer(rule, "service"); |
| |
| List<ServiceCombServer> servers = new ArrayList<>(); |
| MicroserviceInstance instance1 = new MicroserviceInstance(); |
| instance1.setInstanceId("ii01"); |
| MicroserviceInstance instance2 = new MicroserviceInstance(); |
| instance2.setInstanceId("ii02"); |
| ServiceCombServer server = new ServiceCombServer(null, endpoint1, instance1); |
| ServiceCombServer server2 = new ServiceCombServer(null, endpoint2, instance2); |
| |
| new Expectations() { |
| { |
| endpoint1.getEndpoint(); |
| result = "host1"; |
| endpoint2.getEndpoint(); |
| result = "host2"; |
| } |
| }; |
| |
| servers.add(server); |
| servers.add(server2); |
| List<ServerListFilterExt> filters = new ArrayList<>(); |
| filters.add((serverList, invocation1) -> { |
| List<ServiceCombServer> filteredServers = new ArrayList<>(); |
| for (ServiceCombServer server1 : servers) { |
| if (server1.getHost().equals("host1")) { |
| continue; |
| } |
| filteredServers.add(server1); |
| } |
| return filteredServers; |
| }); |
| lb.setFilters(filters); |
| new Expectations() { |
| { |
| invocation.getLocalContext(LoadbalanceHandler.CONTEXT_KEY_SERVER_LIST); |
| result = servers; |
| } |
| }; |
| Server s = lb.chooseServer(invocation); |
| Assertions.assertEquals(server2, s); |
| s = lb.chooseServer(invocation); |
| Assertions.assertEquals(server2, s); |
| s = lb.chooseServer(invocation); |
| Assertions.assertEquals(server2, s); |
| } |
| |
| @Test |
| public void testLoadBalanceWithSessionSticknessRule(@Injectable Invocation invocation, |
| @Injectable Transport transport) { |
| SessionStickinessRule rule = new SessionStickinessRule(); |
| LoadBalancer lb = new LoadBalancer(rule, "service"); |
| |
| List<ServiceCombServer> servers = new ArrayList<>(); |
| Endpoint host1 = new Endpoint(transport, "host1"); |
| MicroserviceInstance instance1 = new MicroserviceInstance(); |
| ServiceCombServer server = new ServiceCombServer(null, host1, instance1); |
| instance1.setInstanceId("instance1"); |
| |
| Endpoint host2 = new Endpoint(transport, "host2"); |
| MicroserviceInstance instance2 = new MicroserviceInstance(); |
| ServiceCombServer server2 = new ServiceCombServer(null, host2, instance2); |
| instance2.setInstanceId("instance2"); |
| |
| servers.add(server); |
| servers.add(server2); |
| |
| lb.setFilters(new ArrayList<>()); |
| new Expectations() { |
| { |
| invocation.getLocalContext(LoadbalanceHandler.CONTEXT_KEY_SERVER_LIST); |
| result = servers; |
| } |
| }; |
| |
| Server s = lb.chooseServer(invocation); |
| Assertions.assertEquals(server, s); |
| s = lb.chooseServer(invocation); |
| Assertions.assertEquals(server, s); |
| |
| long time = Deencapsulation.getField(rule, "lastAccessedTime"); |
| Deencapsulation.setField(rule, "lastAccessedTime", time - 1000 * 300); |
| ArchaiusUtils.setProperty("cse.loadbalance.service.SessionStickinessRule.sessionTimeoutInSeconds", 9); |
| s = lb.chooseServer(invocation); |
| Assertions.assertEquals(server2, s); |
| |
| ArchaiusUtils.setProperty("cse.loadbalance.service.SessionStickinessRule.successiveFailedTimes", 5); |
| lb.getLoadBalancerStats().incrementSuccessiveConnectionFailureCount(s); |
| lb.getLoadBalancerStats().incrementSuccessiveConnectionFailureCount(s); |
| lb.getLoadBalancerStats().incrementSuccessiveConnectionFailureCount(s); |
| lb.getLoadBalancerStats().incrementSuccessiveConnectionFailureCount(s); |
| lb.getLoadBalancerStats().incrementSuccessiveConnectionFailureCount(s); |
| s = lb.chooseServer(invocation); |
| Assertions.assertEquals(server, s); |
| } |
| } |