Skywalking distributed link tracking, related graphics, DLJD, cat

One Business ： Dozens of large 、 Microservice architecture system composed of hundreds of microservices

Two idea 、 demand 、 problem ： Link tracking

For a large number of dozens of 、 Microservice architecture system composed of hundreds of microservices , There are some common problems , such as ：

         How to concatenate the whole call link , Fast location problem ？

         How to clarify the dependency relationship between various micro Services ？

         How to analyze the performance of each micro service interface ？

         How to track the call processing sequence of the whole business process ？

3、 ... and Solution ：

（1） function “ Set ”：

1. Skywalking Provide distributed link tracking 、 Service grid telemetry analysis 、 Measurement aggregation and visualization integration solution ;

   1. Multiple monitoring means , You can use language probes and service mesh Obtain monitored data ;

   2. Support multi language automatic probe , Include Java,.NET Core and Node.JS;

   3. Lightweight and efficient , No need for big data platform and large amount of server resources ;

   4. modularization ,UI、 Storage 、 There are various mechanisms for cluster management ;

   5. Support alarm ;

   6. Excellent visualization solution ;

（2）“ god ” The refrigerator ：Skywalking

Four “ complete ”“ Efficient ” video ：

1  System organization  

1. Distributed chain tracking

   1. Definition ： The application running condition of the distributed system （ Such as execution order 、 Performance waiting ） Tools for monitoring

   2. scene ： Dedicated to micro Services 、 Cloud native architecture and container based （Docker、K8s） Architecture and Design ;

   3. product ：Skywalking（ Not spring cloud Provided by the official website . At home 、java、apache Top projects under ） etc.

2. Related websites

   1. Official website ：Apache SkyWalking

   2. download ：Downloads | Apache SkyWalking

   3. Github：GitHub - apache/skywalking: APM, Application Performance Monitoring System

   4. Use company ：（ There are many in China ）

   5. https://github.com/apache/skywalking/blob/master/docs/powered-by.md

 2  thought 、 Ideas 、 Liuyuan

The whole architecture is divided into four parts ：

1. Upper part Agent ： Responsible for... From the application , Collect link information , Send to SkyWalking OAP The server ;
   1. Add to project Skywakling rely on
   2. here Skywakling Track the running process of the application
   3. Send the tracked data to SkyWalking
2. Lower part SkyWalking OAP ： Responsible for receiving Agent Sent Tracing Data and information , And then analyze it (Analysis Core), To external storage (Storage), Finally, provide the query (Query) function ;
   1. The link information can be saved to the persistent device , Such as a database ：h2、mysql、TIDB wait for .
3. Right section Storage：Tracing data storage , At present, we support ES、MySQL、Sharding Sphere、TiDB、H2 Multiple memories , At present, the most widely used is ES, The main consideration is SkyWalking The development team's own production environment uses ES Mainly ;
4. Left part SkyWalking UI： The page is responsible for providing the console , Look at the links and so on ;

I understand ：
Turn off ：【 relation 、 contrast 】
Doubt
heavy ：【, implementation technique , Tools 】
difficult ：【 feeling 、 experience 、 Understand 】   【 summary 、 inductive 、 law 】
The greatest truths are the simplest ： Make the chart short （ The outline ）