| /* |
| * 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.governance; |
| |
| import java.net.ConnectException; |
| import java.util.concurrent.atomic.AtomicInteger; |
| |
| import org.apache.servicecomb.governance.handler.InstanceIsolationHandler; |
| import org.apache.servicecomb.governance.marker.GovernanceRequest; |
| import org.junit.jupiter.api.Assertions; |
| import org.junit.jupiter.api.Test; |
| import org.springframework.beans.factory.annotation.Autowired; |
| import org.springframework.boot.test.context.SpringBootTest; |
| import org.springframework.test.context.ContextConfiguration; |
| |
| import io.github.resilience4j.circuitbreaker.CallNotPermittedException; |
| import io.github.resilience4j.circuitbreaker.CircuitBreaker; |
| import io.github.resilience4j.decorators.Decorators; |
| import io.github.resilience4j.decorators.Decorators.DecorateCheckedSupplier; |
| import io.micrometer.core.instrument.MeterRegistry; |
| import io.micrometer.prometheus.PrometheusMeterRegistry; |
| |
| @SpringBootTest |
| @ContextConfiguration(classes = {GovernanceConfiguration.class, MockConfiguration.class}) |
| public class InstanceIsolationTest { |
| private InstanceIsolationHandler instanceIsolationHandler; |
| |
| private MeterRegistry meterRegistry; |
| |
| @Autowired |
| public void setInstanceIsolationHandler(InstanceIsolationHandler instanceIsolationHandler, |
| MeterRegistry meterRegistry) { |
| this.instanceIsolationHandler = instanceIsolationHandler; |
| this.meterRegistry = meterRegistry; |
| } |
| |
| @Test |
| public void test_instance_isolation_work() throws Throwable { |
| AtomicInteger counter = new AtomicInteger(0); |
| |
| DecorateCheckedSupplier<Object> ds = Decorators.ofCheckedSupplier(() -> { |
| int run = counter.getAndIncrement(); |
| if (run == 0) { |
| return "test"; |
| } |
| if (run == 1) { |
| throw new ConnectException("test exception"); |
| } |
| return "test"; |
| }); |
| |
| DecorateCheckedSupplier<Object> ds2 = Decorators.ofCheckedSupplier(() -> "test"); |
| |
| GovernanceRequest request = new GovernanceRequest(); |
| request.setInstanceId("instance01"); |
| request.setServiceName("service01"); |
| request.setUri("/test"); |
| |
| CircuitBreaker circuitBreaker = instanceIsolationHandler.getActuator(request); |
| ds.withCircuitBreaker(circuitBreaker); |
| |
| // isolation from error |
| Assertions.assertEquals("test", ds.get()); |
| Assertions.assertThrows(ConnectException.class, ds::get); |
| |
| Assertions.assertThrows(CallNotPermittedException.class, ds::get); |
| Assertions.assertThrows(CallNotPermittedException.class, ds::get); |
| |
| Assertions.assertThrows(CallNotPermittedException.class, ds::get); |
| Assertions.assertThrows(CallNotPermittedException.class, ds::get); |
| Assertions.assertThrows(CallNotPermittedException.class, ds::get); |
| |
| // isolation do not influence other instances |
| GovernanceRequest request2 = new GovernanceRequest(); |
| request2.setInstanceId("instance02"); |
| request2.setServiceName("service01"); |
| request2.setUri("/test"); |
| |
| CircuitBreaker circuitBreaker2 = instanceIsolationHandler.getActuator(request2); |
| ds2.withCircuitBreaker(circuitBreaker2); |
| |
| Assertions.assertEquals("test", ds2.get()); |
| Assertions.assertEquals("test", ds2.get()); |
| Assertions.assertEquals("test", ds2.get()); |
| Assertions.assertEquals("test", ds2.get()); |
| |
| assertMetricsNotFinish(); |
| |
| // recover from isolation |
| Thread.sleep(1000); |
| |
| Assertions.assertEquals("test", ds.get()); |
| Assertions.assertEquals("test", ds.get()); |
| Assertions.assertEquals("test", ds2.get()); |
| Assertions.assertEquals("test", ds2.get()); |
| |
| assertMetricsFinish(); |
| } |
| |
| private void assertMetricsNotFinish() { |
| String result = ((PrometheusMeterRegistry) meterRegistry).scrape(); |
| Assertions.assertTrue(result.contains( |
| "resilience4j_circuitbreaker_state{name=\"servicecomb.instanceIsolation.service01.demo-allOperation.instance01\",state=\"open\",} 1.0")); |
| Assertions.assertTrue(result.contains( |
| "resilience4j_circuitbreaker_state{name=\"servicecomb.instanceIsolation.service01.demo-allOperation.instance02\",state=\"closed\",} 1.0")); |
| Assertions.assertTrue(result.contains( |
| "resilience4j_circuitbreaker_calls_seconds_count{kind=\"successful\",name=\"servicecomb.instanceIsolation.service01.demo-allOperation.instance01\",} 1.0")); |
| Assertions.assertTrue(result.contains( |
| "resilience4j_circuitbreaker_calls_seconds_count{kind=\"successful\",name=\"servicecomb.instanceIsolation.service01.demo-allOperation.instance02\",} 4.0")); |
| } |
| |
| private void assertMetricsFinish() { |
| String result = ((PrometheusMeterRegistry) meterRegistry).scrape(); |
| Assertions.assertTrue(result.contains( |
| "resilience4j_circuitbreaker_state{name=\"servicecomb.instanceIsolation.service01.demo-allOperation.instance01\",state=\"closed\",} 1.0")); |
| Assertions.assertTrue(result.contains( |
| "resilience4j_circuitbreaker_state{name=\"servicecomb.instanceIsolation.service01.demo-allOperation.instance02\",state=\"closed\",} 1.0")); |
| Assertions.assertTrue(result.contains( |
| "resilience4j_circuitbreaker_calls_seconds_count{kind=\"successful\",name=\"servicecomb.instanceIsolation.service01.demo-allOperation.instance01\",} 3.0")); |
| Assertions.assertTrue(result.contains( |
| "resilience4j_circuitbreaker_calls_seconds_count{kind=\"successful\",name=\"servicecomb.instanceIsolation.service01.demo-allOperation.instance02\",} 6.0")); |
| } |
| } |