I am trying to implement feign client concept in my multi-tenancy application. I have two micro-service. In one of the micro-service I have written the API to fetch data from db. and I need this data in my other micro-service. For this I am using feign client concept. I need data during the load time of second micro-service. but this is not happening. I am getting following error
2018-12-14 13:03:10.555 WARN 11268 --- [ restartedMain] c.n.c.sources.URLConfigurationSource : No URLs will be polled as dynamic configuration sources.
2018-12-14 13:03:20.468 WARN 11268 --- [ restartedMain] ationConfigEmbeddedWebApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'multiTenancyJpaConfiguration': Unsatisfied dependency expressed through field 'multiTenantConnectionProvider'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSourceBasedMultiTenantConnectionProviderImpl': Invocation of init method failed; nested exception is com.netflix.hystrix.exception.HystrixRuntimeException: MultiTenancyFeignClient#getDatabase(String) timed-out and no fallback available.
2018-12-14 13:03:21.233 DEBUG 11268 --- [ restartedMain] c.e.c.E.q.c.t.d.Project.projectRoles : Close successful.
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'multiTenancyJpaConfiguration': Unsatisfied dependency expressed through field 'multiTenantConnectionProvider'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSourceBasedMultiTenantConnectionProviderImpl': Invocation of init method failed; nested exception is com.netflix.hystrix.exception.HystrixRuntimeException: MultiTenancyFeignClient#getDatabase(String) timed-out and no fallback available.
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:588)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:366)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1264)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:372)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1173)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1067)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:513)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1081)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:856)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:542)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:737)
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:370)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:314)
at com.testautomation.TestAutomationApp.main(TestAutomationApp.java:84)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSourceBasedMultiTenantConnectionProviderImpl': Invocation of init method failed; nested exception is com.netflix.hystrix.exception.HystrixRuntimeException: MultiTenancyFeignClient#getDatabase(String) timed-out and no fallback available.
at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeInitialization(InitDestroyAnnotationBeanPostProcessor.java:137)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInitialization(AbstractAutowireCapableBeanFactory.java:409)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1620)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:555)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:208)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1138)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1066)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:585)
... 31 common frames omitted
Caused by: com.netflix.hystrix.exception.HystrixRuntimeException: MultiTenancyFeignClient#getDatabase(String) timed-out and no fallback available.
at com.netflix.hystrix.AbstractCommand$22.call(AbstractCommand.java:805)
at com.netflix.hystrix.AbstractCommand$22.call(AbstractCommand.java:790)
at rx.internal.operators.OperatorOnErrorResumeNextViaFunction$4.onError(OperatorOnErrorResumeNextViaFunction.java:140)
at rx.internal.operators.OnSubscribeDoOnEach$DoOnEachSubscriber.onError(OnSubscribeDoOnEach.java:87)
at rx.internal.operators.OnSubscribeDoOnEach$DoOnEachSubscriber.onError(OnSubscribeDoOnEach.java:87)
at com.netflix.hystrix.AbstractCommand$DeprecatedOnFallbackHookApplication$1.onError(AbstractCommand.java:1451)
at com.netflix.hystrix.AbstractCommand$FallbackHookApplication$1.onError(AbstractCommand.java:1376)
at rx.internal.operators.OnSubscribeDoOnEach$DoOnEachSubscriber.onError(OnSubscribeDoOnEach.java:87)
at rx.observers.Subscribers$5.onError(Subscribers.java:230)
at rx.internal.operators.OnSubscribeThrow.call(OnSubscribeThrow.java:44)
at rx.internal.operators.OnSubscribeThrow.call(OnSubscribeThrow.java:28)
at rx.Observable.unsafeSubscribe(Observable.java:10211)
at rx.internal.operators.OnSubscribeDefer.call(OnSubscribeDefer.java:51)
at rx.internal.operators.OnSubscribeDefer.call(OnSubscribeDefer.java:35)
at rx.Observable.unsafeSubscribe(Observable.java:10211)
at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:41)
at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:30)
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48)
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30)
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48)
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30)
at rx.Observable.unsafeSubscribe(Observable.java:10211)
at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:41)
at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:30)
at rx.Observable.unsafeSubscribe(Observable.java:10211)
at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:41)
at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:30)
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48)
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30)
at rx.Observable.unsafeSubscribe(Observable.java:10211)
at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:41)
at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:30)
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48)
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30)
at rx.Observable.unsafeSubscribe(Observable.java:10211)
at rx.internal.operators.OperatorOnErrorResumeNextViaFunction$4.onError(OperatorOnErrorResumeNextViaFunction.java:142)
at rx.internal.operators.OnSubscribeDoOnEach$DoOnEachSubscriber.onError(OnSubscribeDoOnEach.java:87)
at rx.internal.operators.OnSubscribeDoOnEach$DoOnEachSubscriber.onError(OnSubscribeDoOnEach.java:87)
at com.netflix.hystrix.AbstractCommand$HystrixObservableTimeoutOperator$1.run(AbstractCommand.java:1121)
at com.netflix.hystrix.strategy.concurrency.HystrixContextRunnable$1.call(HystrixContextRunnable.java:41)
at com.netflix.hystrix.strategy.concurrency.HystrixContextRunnable$1.call(HystrixContextRunnable.java:37)
at com.netflix.hystrix.strategy.concurrency.HystrixContextRunnable.run(HystrixContextRunnable.java:57)
at com.netflix.hystrix.AbstractCommand$HystrixObservableTimeoutOperator$2.tick(AbstractCommand.java:1138)
at com.netflix.hystrix.util.HystrixTimer$1.run(HystrixTimer.java:99)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask.runAndReset(Unknown Source)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(Unknown Source)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.util.concurrent.TimeoutException: null
at com.netflix.hystrix.AbstractCommand.handleTimeoutViaFallback(AbstractCommand.java:980)
at com.netflix.hystrix.AbstractCommand.access$500(AbstractCommand.java:59)
at com.netflix.hystrix.AbstractCommand$12.call(AbstractCommand.java:595)
at com.netflix.hystrix.AbstractCommand$12.call(AbstractCommand.java:587)
at rx.internal.operators.OperatorOnErrorResumeNextViaFunction$4.onError(OperatorOnErrorResumeNextViaFunction.java:140)
... 15 common frames omitted
and this is my DataSourceBasedMultiTenantConnectionProviderImpl.class where I have written feign client logic
package com.testautomation.util;
import org.hibernate.engine.jdbc.connections.spi.AbstractDataSourceBasedMultiTenantConnectionProviderImpl;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.boot.autoconfigure.jdbc.DataSourceBuilder;
import org.springframework.stereotype.Component;
import com.testautomation.domain.MasterDatabase;
import com.testautomation.service.MultiTenancyFeignClient;
import com.testautomation.service.impl.ProjectServiceImpl;
import javax.annotation.PostConstruct;
import javax.sql.DataSource;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.nio.file.Paths;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Properties;
@Component
public class DataSourceBasedMultiTenantConnectionProviderImpl extends AbstractDataSourceBasedMultiTenantConnectionProviderImpl {
private static final long serialVersionUID = 8168907057647334460L;
private static final String DEFAULT_TENANT_ID = "tenant_1";
private MultiTenancyFeignClient masterTenanacyFeign;
private final Logger log = LoggerFactory.getLogger(ProjectServiceImpl.class);
public DataSourceBasedMultiTenantConnectionProviderImpl( MultiTenancyFeignClient masterTenanacyFeign) {
this.masterTenanacyFeign = masterTenanacyFeign;
}
private Map<String, DataSource> map;
@PostConstruct
public void load() throws Exception {
//feign client logic
System.out.println("Feign client logic");
String name = "testautomation" ;
List<MasterDatabase> result = masterTenanacyFeign.getDatabase(name);
System.out.println("datafromUAA" +result);
//feign client logic ends
File[] files = Paths.get("tenants").toFile().listFiles();
Map<String, DataSource> datasources = new HashMap<>();
for(File propertyFile : files) {
Properties tenantProperties = new Properties();
DataSourceBuilder dataSourceBuilder = new DataSourceBuilder(this.getClass().getClassLoader());
try {
tenantProperties.load(new FileInputStream(propertyFile));
String tenantId = tenantProperties.getProperty("name");
dataSourceBuilder.driverClassName("com.mysql.jdbc.Driver")
.url(tenantProperties.getProperty("spring.datasource.url"))
.username(tenantProperties.getProperty("spring.datasource.username"))
.password(tenantProperties.getProperty("spring.datasource.password"));
datasources.put(tenantId, dataSourceBuilder.build());
} catch (IOException e) {
e.printStackTrace();
}
}
map = new HashMap<>();
map.put("tenat3",datasources.get("tenant3"));
map.put("tenant_1",datasources.get("tenant_1"));
map.put("tenant_2",datasources.get("tenant_2"));
}
@Override
protected DataSource selectAnyDataSource() {
return map.get(DEFAULT_TENANT_ID);
}
@Override
protected DataSource selectDataSource(String tenantIdentifier) {
return map.get(tenantIdentifier);
}
}
This is MultiTenancyFeignClient.class where I am connecting second micro-service to first
package com.testautomation.service;
import java.util.List;
import org.springframework.cloud.netflix.feign.FeignClient;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import com.testautomation.domain.MasterDatabase;
import com.testautomation.util.DataSourceBasedMultiTenantConnectionProviderImpl;
@FeignClient(name="uaa" )
public interface MultiTenancyFeignClient {
@RequestMapping(method = RequestMethod.GET, value = "/api-public/database/{name}")
List<MasterDatabase> getDatabase(@PathVariable ("name") String name);
}
Interesting fact here is If I call my feign client logic inside an API call after application start then It works fine. But during application load this is not happening.
Setting following properties in yml page actually works.
feign:
hystrix:
enabled: flase