zipkin 链路client ,server没连接在一起 about grpc-spring

[xjune123]

GrpcClientAutoConfiguration 中
if (bean instanceof Tracer) {
this.registry.addClientInterceptors(new TraceClientInterceptor((Tracer) bean, new MetadataInjector()));
}
执行不到，你可以主动添加试试看，我这里自己加了就好了
`protected static class TraceClientAutoConfiguration {
@Autowired
Tracer tracer;

    @Bean
    public BeanPostProcessor clientInterceptorPostProcessor(GlobalClientInterceptorRegistry registry) {
        System.out.println(this.tracer);
        //解决调用链问题
        registry.addClientInterceptors(new TraceClientInterceptor(tracer, new MetadataInjector()));

        return new ClientInterceptorPostProcessor(registry);
    }

    private static class ClientInterceptorPostProcessor implements BeanPostProcessor {

        private GlobalClientInterceptorRegistry registry;

        public ClientInterceptorPostProcessor(
                GlobalClientInterceptorRegistry registry) {
            this.registry = registry;
        }

        @Override
        public Object postProcessBeforeInitialization(Object bean,
                                                      String beanName)
                throws BeansException {
            return bean;
        }

        @Override
        public Object postProcessAfterInitialization(Object bean,
                                                     String beanName)
                throws BeansException {
            if (bean instanceof Tracer) {
                this.registry.addClientInterceptors(new TraceClientInterceptor((Tracer) bean, new MetadataInjector()));
            }

            return bean;
        }
    }
}`

[yidongnan]

@xiaomin0322 在 1.4.1.RELEASE 中已经 fix 了