全链路追踪与微服务网关

清疚 2023-03-13 03:52 26阅读 0赞

**一、Tracing Analysis**

`介绍`：

链路追踪（TracingAnalysis）为分布式应用的开发者提供了完整的调用链路还原、调用请求量统计、链路拓扑、应用依赖分析等工具。能够帮助开发者快速分析和诊断分布式应用架构下的性能瓶颈，提高微服务时代下的开发诊断效率。

`使用地址`：[https://www.aliyun.com/product/xtrace][https_www.aliyun.com_product_xtrace]

`三种线程方式`:

通过InheritableThreadLocal、TransmittableThreadLocal线程，用来存储在整个调用链中都需要访问的数据和在整个调用链中进行传递、标记。

<dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>transmittable-thread-local</artifactId>
                <version>2.11.4</version>
            </dependency>

package com.xxxx.faceadd.thread;
    
    public class Service { 
    
        private static InheritableThreadLocal<Integer> requestIdThreadLocal = new InheritableThreadLocal<>();
    
        public static void main(String[] args) { 
            Integer reqId = new Integer(5);
            Service a = new Service();
            a.setRequestId(reqId);
        }
    
        public void setRequestId(Integer requestId) { 
            requestIdThreadLocal.set(requestId);
            doBussiness();
        }
    
        public void doBussiness() { 
            System.out.println("首先打印requestId:" + requestIdThreadLocal.get());
            (new Thread(() -> { 
                System.out.println("子线程启动");
                System.out.println("在子线程中访问requestId:" + requestIdThreadLocal.get());
            })).start();
        }
    }

package com.xxxx.faceadd.thread;
    
    
    import java.util.concurrent.ExecutorService;
    import java.util.concurrent.Executors;
    
    public class ServiceExecutor { 
        /** * 模拟tomcat线程池 */
        private static ExecutorService tomcatExecutors = Executors.newFixedThreadPool(10);
        /** * 业务线程池，默认Control中异步任务执行线程池 */
        private static ExecutorService businessExecutors = Executors.newFixedThreadPool(5);
        /** * 线程上下文环境，模拟在Control这一层，设置环境变量，然后在这里提交一个异步任务，模拟在子线程中，是否可以访问到刚设置的环境变量值。 */
        private static InheritableThreadLocal<Integer> requestIdThreadLocal = new InheritableThreadLocal<>();
    
        public static void main(String[] args) { 
            // 模式10个请求，每个请求执行ControlThread的逻辑，其具体实现就是，先输出父线程的名称，
            for (int i = 0; i < 10; i++) { 
                // 然后设置本地环境变量，并将父线程名称传入到子线程中，在子线程中尝试获取在父线程中的设置的环境变量
                tomcatExecutors.submit(new ControlThread(i));
            }
            //简单粗暴的关闭线程池
            try { 
                Thread.sleep(10000);
            } catch (InterruptedException e) { 
                e.printStackTrace();
            }
            businessExecutors.shutdown();
            tomcatExecutors.shutdown();
        }
    
    
        /** * 模拟Control任务 */
        static class ControlThread implements Runnable { 
            private int i;
            public ControlThread(int i) { 
                this.i = i;
            }
            @Override
            public void run() { 
                System.out.println(Thread.currentThread().getName() + ":" + i);
                requestIdThreadLocal.set(i);
                //使用线程池异步处理任务
                businessExecutors.submit(new BusinessTask(Thread.currentThread().getName()));
            }
        }
    
        /** * 业务任务，主要是模拟在Control控制层，提交任务到线程池执行 */
        static class BusinessTask implements Runnable { 
            private String parentThreadName;
            public BusinessTask(String parentThreadName) { 
                this.parentThreadName = parentThreadName;
            }
            @Override
            public void run() { 
                //如果与上面的能对应上来，则说明正确，否则失败
                System.out.println("parentThreadName:" + parentThreadName + ":" + requestIdThreadLocal.get());
            }
        }
    }

package com.xxxx.faceadd.thread;
    
    import com.alibaba.ttl.TransmittableThreadLocal;
    import com.alibaba.ttl.threadpool.TtlExecutors;
    import java.util.concurrent.ExecutorService;
    import java.util.concurrent.Executors;
    
    public class ServiceTransmittable { 
    
        /** * 模拟tomcat线程池 */
        private static ExecutorService tomcatExecutors = Executors.newFixedThreadPool(10);
    
        /** * 业务线程池，默认Control中异步任务执行线程池 */
        private static ExecutorService businessExecutors = TtlExecutors.getTtlExecutorService(Executors.newFixedThreadPool(4)); // 使用ttl线程池，该框架的使用，请查阅官方文档。
    
        /** * 线程上下文环境，模拟在Control这一层，设置环境变量，然后在这里提交一个异步任务，模拟在子线程中，是否可以访问到刚设置的环境变量值。 */
        private static TransmittableThreadLocal<Integer> requestIdThreadLocal = new TransmittableThreadLocal<>();
    
        //private static InheritableThreadLocal<Integer> requestIdThreadLocal = new InheritableThreadLocal<>();
    
        public static void main(String[] args) { 
            for (int i = 0; i < 10; i++) { 
                tomcatExecutors.submit(new ControlThread(i));
            }
            //简单粗暴的关闭线程池
            try { 
                Thread.sleep(10000);
            } catch (InterruptedException e) { 
                e.printStackTrace();
            }
            businessExecutors.shutdown();
            tomcatExecutors.shutdown();
    
        }
    
    
        /** * 模拟Control任务 */
        static class ControlThread implements Runnable { 
            private int i;
            public ControlThread(int i) { 
                this.i = i;
            }
            @Override
            public void run() { 
                System.out.println(Thread.currentThread().getName() + ":" + i);
                requestIdThreadLocal.set(i);
                //使用线程池异步处理任务
                businessExecutors.submit(new BusinessTask(Thread.currentThread().getName()));
            }
        }
    
        /** * 业务任务，主要是模拟在Control控制层，提交任务到线程池执行 */
        static class BusinessTask implements Runnable { 
            private String parentThreadName;
            public BusinessTask(String parentThreadName) { 
                this.parentThreadName = parentThreadName;
            }
            @Override
            public void run() { 
                //如果与上面的能对应上来，则说明正确，否则失败
                System.out.println("parentThreadName:" + parentThreadName + ":" + requestIdThreadLocal.get());
            }
        }
    
    }

**二、CSB 微服务网关 MG（Micro Gateway）**

`介绍`：

CSB 微服务网关 MG（Micro Gateway）微服务体系中服务的流量网关，服务在网关中以 API 的形式对外提供服务，而网关既是开放入口又是访问屏障。微服务网关结合微服务体系中的其他组件，是适用于微服务架构的网关产品。

`开放地址`：[https://microgw.console.aliyun.com/gateway][https_microgw.console.aliyun.com_gateway]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyNDQ3MzAx_size_16_color_FFFFFF_t_70]

参考：[https://mp.weixin.qq.com/s/zkWjVVan2VLnYMIxt32G4g][https_mp.weixin.qq.com_s_zkWjVVan2VLnYMIxt32G4g]

参考：[https://help.aliyun.com/document\_detail/156009.html][https_help.aliyun.com_document_detail_156009.html]

参考：[https://mp.weixin.qq.com/s?\_\_biz=MzIzNzgyMjYxOQ==&mid=2247484380&idx=1&sn=ff2e2aaf9cfc63ae60cedd07dea26733&chksm=e8c3f428dfb47d3e5c9019d8048de1be45a1f0a40ccb5e4566e38f5988e7c6ba085a5885fcdd&scene=21\#wechat\_redirect][https_mp.weixin.qq.com_s_biz_MzIzNzgyMjYxOQ_mid_2247484380_idx_1_sn_ff2e2aaf9cfc63ae60cedd07dea26733_chksm_e8c3f428dfb47d3e5c9019d8048de1be45a1f0a40ccb5e4566e38f5988e7c6ba085a5885fcdd_scene_21_wechat_redirect]

[https_www.aliyun.com_product_xtrace]: https://www.aliyun.com/product/xtrace
[https_microgw.console.aliyun.com_gateway]: https://microgw.console.aliyun.com/gateway
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyNDQ3MzAx_size_16_color_FFFFFF_t_70]: /images/20230312/6d0ff0f0a1a248fc907e0fc257ccab1d.png
[https_mp.weixin.qq.com_s_zkWjVVan2VLnYMIxt32G4g]: https://mp.weixin.qq.com/s/zkWjVVan2VLnYMIxt32G4g
[https_help.aliyun.com_document_detail_156009.html]: https://help.aliyun.com/document_detail/156009.html
[https_mp.weixin.qq.com_s_biz_MzIzNzgyMjYxOQ_mid_2247484380_idx_1_sn_ff2e2aaf9cfc63ae60cedd07dea26733_chksm_e8c3f428dfb47d3e5c9019d8048de1be45a1f0a40ccb5e4566e38f5988e7c6ba085a5885fcdd_scene_21_wechat_redirect]: https://mp.weixin.qq.com/s?__biz=MzIzNzgyMjYxOQ==&mid=2247484380&idx=1&sn=ff2e2aaf9cfc63ae60cedd07dea26733&chksm=e8c3f428dfb47d3e5c9019d8048de1be45a1f0a40ccb5e4566e38f5988e7c6ba085a5885fcdd&scene=21#wechat_redirect