Help!! Error in consuming Spring boot standalone Application API's Via Gateway <o.a.s.t.rest.vertx.VertxRestDispatcher : http server failed.>

[shri-arunraj]

I have built a microservice provider based in Spring boot standalone starter. It listens on port 8116. The Rest API's provided by this service can be consumed directly on this port 8116 with postman.

However when routed via Gateway, I am getting the below error in the provider.

2022-08-02 13:22:45.980 ERROR 44749 --- [ntloop-thread-8] o.a.s.t.rest.vertx.VertxRestDispatcher   : http server failed.

io.vertx.core.VertxException: Connection was closed

And At the gateway the request is getting timedout.

2022-08-02 13:22:45.921  INFO 77044 --- [ntloop-thread-5] o.a.s.t.r.c.http.RestClientInvocation    : Request timeout, Details: The timeout period of 30000ms has been exceeded while executing POST /oauth2/token for server 192.168.1.2:8116.
2022-08-02 13:22:46.001  INFO 77044 --- [ntloop-thread-5] o.a.s.f.common.utils.SPIServiceUtils     : Found SPI service org.apache.servicecomb.swagger.invocation.exception.ExceptionToProducerResponseConverter, count=8.
2022-08-02 13:22:46.002  INFO 77044 --- [ntloop-thread-5] o.a.s.f.common.utils.SPIServiceUtils     :   0. org.usb.talech.microservices.runtime.exceptionConverters.ConstraintViolationExceptionToProducerResponseConverter.
2022-08-02 13:22:46.002  INFO 77044 --- [ntloop-thread-5] o.a.s.f.common.utils.SPIServiceUtils     :   1. org.usb.talech.microservices.runtime.exceptionConverters.IllegalArgumentExceptionToProducerResponseConverter.
2022-08-02 13:22:46.002  INFO 77044 --- [ntloop-thread-5] o.a.s.f.common.utils.SPIServiceUtils     :   2. org.apache.servicecomb.swagger.invocation.validator.ConstraintViolationExceptionToProducerResponseConverter.
2022-08-02 13:22:46.002  INFO 77044 --- [ntloop-thread-5] o.a.s.f.common.utils.SPIServiceUtils     :   3. org.usb.talech.microservices.runtime.exceptionConverters.BusinessExceptionToProducerResponseConverter.
2022-08-02 13:22:46.002  INFO 77044 --- [ntloop-thread-5] o.a.s.f.common.utils.SPIServiceUtils     :   4. org.apache.servicecomb.swagger.invocation.exception.InvocationExceptionToProducerResponseConverter.
2022-08-02 13:22:46.002  INFO 77044 --- [ntloop-thread-5] o.a.s.f.common.utils.SPIServiceUtils     :   5. org.apache.servicecomb.swagger.invocation.exception.DefaultExceptionToProducerResponseConverter.
2022-08-02 13:22:46.003  INFO 77044 --- [ntloop-thread-5] o.a.s.f.common.utils.SPIServiceUtils     :   6. org.apache.servicecomb.core.exception.IllegalArgumentExceptionToProducerResponseConverter.
2022-08-02 13:22:46.003  INFO 77044 --- [ntloop-thread-5] o.a.s.f.common.utils.SPIServiceUtils     :   7. org.apache.servicecomb.core.exception.ThrowableExceptionToProducerResponseConverter.
2022-08-02 13:22:46.232 ERROR 77044 --- [ntloop-thread-5] i.v.c.http.impl.HttpClientRequestImpl    : io.vertx.core.http.impl.NoStackTraceTimeoutException: The timeout period of 30000ms has been exceeded while executing POST /oauth2/token for server 192.168.1.2:8116

This is my provider Main application.

package com.pos.oauth.app.starter;

import org.apache.servicecomb.springboot2.starter.EnableServiceComb;
import org.apache.servicecomb.tracing.zipkin.EnableZipkinTracing;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.WebApplicationType;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.domain.EntityScan;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.ImportResource;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;

import com.pos.oauth.service.inter.IPOSMFAAuthLoginWebService;

@SpringBootApplication(scanBasePackages= {"com.pos"})
@EnableServiceComb
@EnableAutoConfiguration
@ComponentScan({"com.pos"})
@EntityScan(basePackages ={"com.pos"} )
@EnableZipkinTracing
@EnableJpaRepositories("com.pos")
@ImportResource("classpath:application-context.xml")
public class OAuthServiceMainStandAlone {

  public static void main(String[] args) {
        new SpringApplicationBuilder().sources(OAuthServiceMainStandAlone.class).web(WebApplicationType.NONE).build().run(args);
  }
}

ANd this is my provider configuration

server:
  port: 0

# java-chassis configuration
servicecomb-config-order: 1
APPLICATION_ID: talech-services
service_description:
  name: oauth-service
  version: 4.0.1
servicecomb:
  service:
    registry:
      address: http://127.0.0.1:30100
  rest:
    address: 0.0.0.0:8116
  highway:
    address: 0.0.0.0:7070
  handler:
    chain:
      Provider:
        default: bizkeeper-provider
spring:
    datasource:
        password: pospassword
        url: jdbc:mysql://localhost:3306/oauth?jdbcCompliantTruncation=false&connectTimeout=30000&socketTimeout=60000&useUnicode=yes&characterEncoding=UTF-8
        username: posuser
dozer:
  mapping-files: classpath*:/dozer-mapping.xml        

What i am doing wrong? Why gateway routed requests are failing at provider?

[zhaozw]

could you paste your gateway configuration

[shri-arunraj]

@zhaozw

servicecomb-config-order: 100
servicecomb:
  service:
    application: talech-services
    name: gateway
    properties:
      allowCrossApp: true #whether to allow calls across applications
    version: 0.0.4
    registry:
      # Default using local service center
      address: http://localhost:30100
      # address: https://cse.cn-south-1.myhuaweicloud.com
      instance:
        watch: false

  flowcontrol:
     Consumer:
       qps:
          enabled: true
          limit:
            oauth-service:
              OAuthDeveloperService:
                registerDeveloper: 4 
  handler:
    chain:
      Consumer:
        default: loadbalance,tracing-consumer,qps-flowcontrol-consumer,bizkeeper-consumer
        service:
         mfa-login-service: authClientGrant,loadbalance,tracing-consumer
      Provider:
           default: bizkeeper-provider,tracing-provider
  loadbalance:
    strategy:
      name: WeightedResponse
  rest:
    address: 0.0.0.0:9091?sslEnabled=false
  tracing:
    enabled: true
  http:
    dispatcher:
      edge:
        url:
          enabled: true
          order: 1
          mappings:
            mfaServices:
              path: "/a/mfa/login/.*"
              microserviceName: mfa-login-service
              prefixSegmentCount: 1
              versionRule: 0.0.0+   
            oauthAdmin:
              path: "/admin/oauth/.*"
              microserviceName: oauth-service
              prefixSegmentCount: 1
              versionRule: 0.0.0+
            oauthService:
              path: "/oauth2/.*"
              microserviceName: oauth-service
              prefixSegmentCount: 0
              versionRule: 0.0.0+   

Note here I am consuming here the rest API hosted by oauth-service microservice and whose path starts with /oauth2/.*. It was working before when the provider uses servlet based spring boot starter rather than standalone starter.

[liubao68]

i.v.c.http.impl.HttpClientRequestImpl : io.vertx.core.http.impl.NoStackTraceTimeoutException: The timeout period of 30000ms has been exceeded while executing POST /oauth2/token for server 192.168.1.2:8116

Maybe you need first check if 192.168.1.2:8116 reachable from your gateway environment.

[shri-arunraj]

@liubao68 If i change the dependency to java-chassis-spring-boot-starter-servlet at the provider, it is working as expected. Both provider and gateway are running in my local host. So i guess it shouldn't be a communication problem.

    <dependency>
      <groupId>org.apache.servicecomb</groupId>
      <artifactId>java-chassis-spring-boot-starter-servlet</artifactId>
    </dependency>

[liubao68]

Do you used some components from spring boot to implements oauth2? e.g. how /oauth2/token is implemented.

Maybe the module you used only works with servlet.