Alibaba cloud middleware open source past

Distributed architecture and cloud Nativity reshape the game rules of middleware , This provides a historical opportunity for domestic developers to redefine middleware .

Before the popularity of distributed architecture , Abroad  IT  Manufacturers are leading the development of the middleware market , And closed source 、 Business oriented service forms ; With the popularity of cloud computing and the Internet , Ali will  RPC  frame 、 Message queue 、 Service discovery 、 Configuration center 、 Distributed transactions 、 Core application middleware technologies such as current limiting and degradation are open source , Accelerate the implementation of distributed architecture in China , It also enables developers to  Spring  There is an alternative to the technology stack . Cloud native implements middleware to  BaaS  or  SaaS  The form of , After the implementation of distributed application architecture , Middleware in capacity management 、 deliver 、 Operation and maintenance 、 The problem of disaster recovery , Users through standardized  API  You can complete the call to the middleware , So as to improve the overall development and operation and maintenance efficiency of the enterprise .

This article describes the past of Alibaba cloud's core open source projects in the field of application middleware 、 Present and future , Length is longer than the , The story line is listed below ：

• Apache Dubbo： Synchronous architecture communication , from  RPC  Framework to fully embrace cloud native infrastructure

• Apache RocketMQ ： Asynchronous architecture communication , from  Messaging  To  Streaming  and  Eventing

• Nacos： From architecture to key components , Continue to break through performance bottlenecks , Market share has exceeded 50%

• Sentinel： For the first time, it involves the field of service governance , But it's not just current limiting degradation , The milestone version will be released soon 2.0

• Spring Cloud Alibaba： For domestic developers 、 Alibaba cloud 、Spring  For the three parties , It's all good news

• Arthas： A tool based open source project ,Stat  The breakthrough  3w

• ChaosBlade： Business stability , It is not only necessary to limit the current in the event of degradation , It is even more necessary to drill in advance

• Seata： Let the use of distributed transactions be the same as that of local transactions , Simple and efficient

• AppActive：Sentinel、ChaosBlade、AppActive, Three highly available carriages were successfully assembled

• OpenSergo： It is difficult to solve the service governance problems of the growing micro service framework mixed enterprises

from  RPC  Framework to fully embrace cloud native infrastructure

Apache Dubbo（ hereinafter referred to as  Dubbo） It's Alibaba in  2012  Open source distributed service governance framework in , Is the most influential in China 、 The most widely used open source  RPC  One of the frames ,2017  Donate to  Apache  The foundation ,2019  Officially graduated in .

Dubbo  And community developers

“ It is an honor to graduate from an incubator , But this is not the end , It's another start . It's a bit like studying , Graduation does not mean a break in study , But the beginning of exerting greater social value . Graduation is more like a rite of passage , signify  Dubbo  The team has met  Apache  Requirements for a mature open source project , And began to have the ability to develop independently .” Beiwei, a senior technical expert of Alibaba cloud, replied in an interview .

from  Apache  Incubator graduation , It's not the end . The service framework is like a railway track , It is the basis of interoperability , Only by solving the interworking of service framework , It is possible to complete higher-level business interoperability , Therefore, adopting the same standard is the inevitable trend of the development of the new generation service framework .2021  year ,Dubbo  Official release  3.0  edition ,Dubbo3.0  yes  Dubbo2.0  And  HSF  From fusion , Alibaba is facing internal business 、 commercial 、 The only open source standard service framework .

come from  Dubbo  Website home page

Dubbo3.0  Release , It also comes from the core evolution direction of comprehensively embracing cloud native infrastructure

With  K8s  Become the de facto standard for resource scheduling ,Service Mesh  From its proposal to development, it has been gradually accepted by more and more users .Dubbo  This kind of  Java  Microservice governance system is facing many new demands , Including the expectation that the application can start faster 、 The protocol penetration of application communication can be higher 、 Be able to support multi language more friendly, etc . therefore ,Dubbo3.0  A new service discovery model is proposed for the first time 、 The next generation  RPC  New capabilities such as protocols and adapting cloud native infrastructure .

• Dubbo 3.0  Support application level service discovery
  ：Dubbo  Originally, the interface level registration method was adopted , The data stored in the registry will have duplicate content to a large extent , With the growth of service scale , The amount of data in the registry will explode , Support application level service discovery , Not only greatly reduce the memory pressure of the registry , For greater performance , what's more , It has broken through the gap in address discovery with other micro service systems , It is fitting  Kubernetes  And other infrastructure , An important step forward .

• Dubbo 3.0  Put forward the next generation  RPC  agreement  —— Triple
  ： This is a base  HTTP/2  The design is fully compatible  gRPC  The openness of the agreement , It has high gateway friendliness and penetration , Fully compatible with  gRPC  The protocol is natural and has advantages in multilingual communication . This also solves the problem of ecological non interoperability in the previous generation protocol 、 The protocol header can no longer carry more diverse data information .

from  Messaging  To  Streaming  and  Eventing

If you put  RPC  As the implementation mechanism of synchronous communication , Then the message queue can be regarded as the implementation mechanism of asynchronous communication . In addition to asynchronous communication , Message queuing can also be used for decoupling 、 Peak shaving and valley filling 、 Scenarios such as distributed transactions , This pair of message queuing in performance 、 Put forward higher requirements for stability .

2011  year , At that time, Shuang  11  Messages are often delayed for half a day or more , The problem that the merchant cannot see the goods that the buyer has purchased . The essence of solving this problem is how to achieve high-speed reading and writing , But based on the previous architecture , Can't solve the problem completely . that , We need to design a new storage architecture . Responsible for the task of new product design , It just landed on  RocketMQ  founder & Author wangxiaorui .

But there were only two people , One person is responsible for  Notify, Wangxiaorui is responsible for the design of new products . But open source , It can gather hundreds of people 、 Thousands of people 、 Tens of thousands of people have come together to develop , It can also absorb all companies 、 industry 、 Business scenario requirements , Bring together the greatest productivity . therefore , From the first day ,RocketMQ  Is hosted in  GitHub  On , In other words, the first line of code is open to all developers and users , The whole development process is also open to users , This has also attracted a lot of developers , Everyone help  Review  Code 、 test  Bug,RocketMQ  With the participation of many developers, it has made rapid progress .

2016  That year's double  11,RocketMQ  For the first time, the team applied the low latency storage solution to dual storage  11  The support of , Withstood the big test of traffic , The whole promotion period ,99.996%  The delay is in  10ms  within , The established goal of ensuring the stability of transactions has been achieved , For a distributed messaging engine with an almost balanced read-write ratio , This technological breakthrough , Even on a global scale , It is absolutely commendable . meanwhile ,“ double  11” The volume of news reached trillions on that day , Peak value  TPS  Tens of millions , It also created the largest information flow record in the world at that time .

RocketMQ  And community developers

2016  year , In the diachronic period  3  After months of open source reinvention ,RocketMQ  The team started to  Apache  The donation path of the software foundation , After nearly a year's efforts , stay  2017  year  9  month  25  Japan ,Apache  The software foundation officially announced , Alibaba donated to  Apache  Open source projects in the community  RocketMQ  from  Apache Community graduation , Become  Apache  Top projects （TLP）, This is the first non  Hadoop  Of the ecosystem  Apache  Top projects in the community .

It is worth mentioning that , According to the statistics before graduation ,RocketMQ  Eightypercent of the new features and ecological integration come from the contribution of the community .

2021  year , Through the continuous efforts of many developers in the community ,RocketMQ 5.0  Official release , The core of the new version includes two new highlights ：

• First , The message core scenario is fully expanded ,
  RocketMQ 5.0  It is no longer limited to the message decoupling scenario , Change the application scenario of the message from  Messaging  Extended to  Streaming  and  Eventing  field
  ;

• secondly , The technical architecture is evolving , Gradually form the technical framework and trend of one-stop fusion processing .

2022  year , Batch message index 、 Logical queue publishing  RocketMQ-MQTT、RocketMQ-Connect、RocketMQ-Streams, From the business message platform to 『 news 、 event 、 flow 』 Upgrade of integrated fusion processing platform . Developers can implement a message store , Supports streaming computing 、 Asynchronous delivery 、 Integration drive and other scenarios . Realize one-stop solution to technical problems , Greatly reduce the technical complexity and operation and maintenance cost , Simplify enterprise application architecture .

The landing of distributed applications , Just one  RPC  A framework and an asynchronous messaging system are not enough , You also need a series of components around the distributed application architecture .

Midsummer night for technologists

2018  In the summer , Domestic application middleware open source field , Welcome two new members .

As two important open source components in the micro service ecosystem ,Nacos  Focus on dynamic service discovery 、 Configuration and service management ,Sentinel  It focuses on current limiting and degradation .

Nacos  and  Sentinel  All in Ali  10  Generated by precipitation under the core business scenario for many years , Their open source is an effective supplement to the open source technical solutions in the field of domestic application middleware , At the same time, it also emphasizes the integration into the open source ecosystem , In addition to compatibility  Dubbo, Also support  Spring Cloud  and  Kubenetes  Isoecology , To enhance their own vitality .

“Nacos  Originated within Alibaba , After more than ten years of double  11  Three products tested by Hongfeng  - VIPServer/Configserver/Diamond , It's easy to use 、 Stable and reliable 、 The core competitiveness of excellent performance , And attracted  200  Many excellent contributors , Co iterations  44  A version , Service tiger tooth 、 Good future 、 Xiaomi and other enterprises , stay  2.0  On the milestone version of , Fully upgraded the communication protocol 、 Service consistency model 、 Support service grid ecology and multilingual ecology .” Yanlin is  Nacos  star  breakthrough  2w  After that, he shared .

Nacos 2.0  Release , yes  Nacos  star  breakthrough  2w  Another milestone in . With  Nacos  Growth in user size , And user business is becoming more and more complex ,Nacos 2.0  The release of is a necessity .Nacos 1.x  Time ：

• The service found that the performance was not strong enough ： stay  10W、5W  Under the client level , The server is completely in  Full GC  state , Push completely failed , Cluster not available ; stay  2W  On a client scale , Although the server is running normally , But because the heartbeat is not handled in time , A large number of services are repeated during the removal and registration phases , So it's not stable ,CPU  Always high ;1.2W  On a client scale , Stable operation , But in steady state  CPU  Consumption is on a larger scale  2.0  Of  3  More than times .

• The configuration management performance is not strong enough ： The number of connected clients has reached  6000  when , Steady state  CPU  Always high , And  GC  frequent ; When the client scale reaches  1.2w  when , It's no longer stable , So it can't support the number of clients of this magnitude . The push scale reaches  3000TPS  when , Account for the  80% Of  CPU  resources ; Once reached  6000TPS  when ,CPU  Resources have risen to  90%.

Nacos  And community developers

Nacos2.0  As a cross generational version , The architecture has been comprehensively upgraded , Once and for all  Nacos1.X  Performance problems of , Scenarios for service discovery ,Nacos2.0  In the  10w  At the next level , Stable operation , comparison  Nacos1.X  Version of  1.2w  scale , Ascension approx  10  times ; For configuration management scenarios ,Nacos2.0  A single machine can support  4.2W  Client connection , comparison  Nacos1.X, Promoted  7  times , And the performance of push is better than  1.X.

On one side,  Nacos  Announced that the open source , Gradually iterate to  2.0  edition , Provide enterprise version  MSE, On the other side is  Spring Cloud  The service registration and discovery components under the ecosystem announced that the open source investment was stopped , The game of the brave is full of variables , But in  Nacos  It seems the team , This game can go to the end by itself ： stay  2021  In a survey conducted by a third-party media on the open source solution adopted by the registry in ,Nacos  Our market share has exceeded  50%.

Nacos  Just one of Alibaba cloud's many open source middleware projects , Then there are more open source projects feeding back to the community , Form ecology , For example, lightweight current limiting degraded components  Sentinel.

Factors affecting the stability of the production environment , From the source , We can usually generalize into two categories , One is during the release process , The risk of introducing code changes , One is the risk caused by external irregular traffic . and  Sentinel  As a high availability open source project , What he wants to solve is the stability risk caused by external traffic .

Middleware developers  Meetup  ShenZhen Railway Station

2018  year  7  month , Middleware developers  Meetup  Shenzhen station site , It can only hold  400  Human space , Coming close  700  Developers .Sentinel  The founder Zijin announced the lightweight current limiting degraded component on the spot  Sentinel  The open source .“Sentinel  Experienced  10  Multi year double  11  The test of , It covers all the core scenarios of Alibaba , As a result, a large number of traffic consolidation scenarios and production practices have been accumulated .Sentinel  Take flow as the starting point , Slave flow control 、 Fusing the drop 、 Multiple dimensions such as system load protection protect the stability of services .”

• flow control ： The upper limit for a service is  1  Second processing  3000  individual  QPS, But if the actual situation is higher than 3000 Of  QPS  How to solve it ？Sentinel  Through traffic statistics , When the traffic exceeds the threshold , Will help the service through direct rejection 、 Cold start 、 The homogenizer has three ways to deal with , So as to play the role of flow control .

• Fusing the drop ： There will be interdependencies between services , For example, service  A 1  It can process tens of thousands per second  QPS, But service  B  Do not have such a high processing capacity , So how to guarantee the service  A  Call the service at high frequency B when , service  B  It still works ？Sentinel  By limiting the number of concurrent threads and degrading resources in response time , These two methods are used to realize fusing or degradation , So as to ensure the service  B  It works .

2019  year ,Sentinel  Contributing  

spring-cloud-circuitbreaker-sentinel

  The module was formally merged by the community into  Spring Cloud Circuit Breaker, thus ,Sentinel  And joined in  Spring Cloud Circuit Breaker  Club , Become  Spring Cloud  One of the official mainstream recommended choices .

Open source projects need to continue to expand their capabilities to maintain sustained vitality ,Sentinel  More than current limiting degradation , Whether it can also help developers solve many stability risks during the release of new versions , This is about to be released  Sentinel2.0  Questions to answer .

Spring Cloud  The official recommended microservice solutions are more than  Sentinel  One , also  Spring Cloud Alibaba.

2018  year , China's  Java  A big thing happened in the circle .Spring Cloud  cofounder  Spencer Gibb  stay  Spring  The blog page of the official website announced ： Alibaba open source  Spring Cloud Alibaba, And released the first preview version . And then ,Spring Cloud  official  Twitter  This news has also been released .

come from  Spring Cloud  official  Twitter

Spring Cloud Alibaba  The project consists of two parts ： Alibaba open source components and Alibaba cloud product components , For the purpose of  Java  Developers use Alibaba cloud products at the same time , By using  Spring  The design patterns and abstractions of the framework , Inject  Spring Boot  and  Spring Cloud  The advantages of .

Spring Cloud  It's a set of microservice specifications , It's not a ready to use framework , and  Spring Cloud Alibaba  Open source provides developers with the implementation of this specification , This implementation method is very friendly to calling alicloud resources and cloud product capabilities ,

This is for domestic developers 、 Alibaba cloud 、Spring  For the three parties , It's all good news .

After summer , The popularity of open source continues

The advantage of efficiency lies in , We can focus our attention and time on things that need more creativity , Do something more fulfilling . For developers working in the field of Engineering , They are more efficient .

2018  year  9  month , Ali will widely use  Java  Online diagnostic tools are open source , The name  Arthas ( Alsace ). Maybe it hit the pain point of developers' online troubleshooting ,Arthas  It is the first time since open source  Release  Version of the release only  147  God , You get more than  1w  Of  star  Count , And there are  40  Many bits  Contributors  Participate in open source contributions .

Arthas Contributors

from , We not only see  Arthas  The popularity of this kind of tool based open source projects in the developer community , We also found that more and more domestic developers began to participate in open source contributions , And as a community honor .

technical field , The achievement of all milestones , All come from a technical feeling . So far ,Arthas  It's close to  3w star  and  146  position   Contributors, For an online diagnostic tool , It is a good answer .

The time came to  2019  year .

If the production stage is compared to the college entrance examination , that  Sentinel  It solves the problem of stability in the matter , Once the traffic increases , It can be handled by current limiting and degradation , and  2019  Open source in  Chaosblade  Is more ways to improve the high availability of the architecture , Through the establishment of fault drill mechanism , Rehearse all kinds of foreseeable faults in advance , For example, randomly kill nodes 、 Delayed response , Even interrupt the computer room .

Chaosblade  and  Sentinel  Teachers come from the same school , It comes from Alibaba's full link voltage test 、 Online traffic control 、 This set of highly available core technologies precipitated on the fault drill . Zhongting, a senior Alibaba cloud technical expert, said ：“ Ali has diversified business scenarios and increasingly complex technical architecture , There will be various faults , The difficulty of fault management has increased by several steps .Chaosblade  from  2011  Year begins , Experienced strong and weak dependent governance and construction 、 Local disaster recovery drill 、 Try to rehearse the three phases in the transaction and middleware links , after  6  Years of polishing , Finally, the best practices and tool framework will form a unified standard , Open source externally , help  DevOps  People shorten the path of building chaotic engineering .”

Today, the microservice architecture is widely implemented , Data consistency problems caused by distributed transactions 、 Performance problems are becoming more and more difficult . Distributed transactions are a bit of a barrier to understanding , But everywhere , He is relative to local affairs , Services and services can be completed without crossing the network , Call it local affairs , Need to cross the network to complete , Call it distributed transaction , For example, the transfer business between banks in the financial industry can only be completed across the network , The e-commerce trade orders call the external inventory system 、 The logistics system needs to cross the network to complete .

Although there are some open source solutions for distributed transactions in the industry , But either the performance is poor 、 Or the data consistency is not enough 、 Or it is highly invasive , Not easy to land . All in all , A little bit. “ Not great ”.

announce  Seata  Open source  Meetup  The scene

And this kind of “ Not great ” It is centrally reflected in the distributed transaction open source middleware  Seata  On , Qing mingzai  2019  year  1  Month middleware developer  Meetup  Announce distributed transaction middleware on  Seata  Within a week after the official open source ,Seata  And then you get  3000+ star, Community discussion  issue  reach  58  individual .

Alibaba is one of the first companies in China to carry out application distribution （ Micro service ） Transformed enterprises , Therefore, we have encountered the problem of distributed transactions under the microservice architecture for a long time .2014  Released in  TXC, Start to provide distributed transaction services for intra group applications .2016  year ,TXC  After product transformation , With  GTS  Go online as Alibaba cloud , At that time, it became the only commercial product in the industry that provided distributed transactions on the cloud .2019  year , be based on  TXC  and  GTS  Technology accumulation , Open source  Seata, Build a distributed transaction solution with the community .2022  year , After years of polishing ,Seata  Released  1.5.0  Milestone version , This version has  61  name  contributor  Contributed nearly  7w+ Code , At the same time  Seata  Enterprise Edition , And in the microservice engine  MSE  Provide commercial services on . Compared with the open source kernel, the enterprise version  RT  Reduce  20%  above ,TPS  Performance improvement  30%, It also solves the transaction processing in high concurrency scenarios “ skin needling ” problem .

TXC/GTS/Seata/MSE  In line , The vision is to make the use of distributed transactions the same as that of local transactions , Simple and efficient .

From distributed application architecture to distributed application governance

Governance is not just a continuation of the architecture , It is also the evolution direction of the next generation application middleware technology .

The requirements of distributed application architecture include  RPC  frame 、 Message queue 、 Service discovery 、 Configuration center 、 gateway 、 Distributed transactions, etc , The solution is the implementation of distributed applications , But as the number of services increases 、 The dependencies between services are more complex , Distributed application governance has become a more urgent need , Including traffic management 、 Develop test governance 、 Database governance 、 Chaos Engineering 、 How to live , The solution is to make good use of 、 Manage the problems of distributed applications .

But apparently , just  Sentinel、Chaoblade  It is not enough for developers to make good use of 、 Manage the open source demands of distributed applications , So Alibaba cloud once again opened two projects in the field of distributed application governance ,Appactive  and  OpenSergo.

stay  2022  year  1  At the cloud native actual combat summit in June , Shutong, the person in charge of cloud native application platform, announced that the application is flexible  Appactive  Official open source . thus ,Sentinel、Chaosblade  and  AppActive  Three highly available carriages have been formed , Help enterprises build stable and reliable enterprise production systems , Improve the ability of enterprises to face disaster tolerance 、 Fault tolerance 、 Capacity control and other steady-state system construction capacity .

2013  year , At that time, Taobao finished going  O  It didn't take long , The scale of "double 11" has further soared over the previous year . Ali's engineers are facing the following two problems , On the one hand, the computer room resources are very tight , Capacity is insufficient , On the other hand, there is a rare hot weather in Hangzhou , The machine room faces the risk of power failure , The multi live architecture in different places is hatched under this background . later , As the business scale of Taobao evolves , Remote multi activity also ranges from close-up local dual computer rooms to remote remote remote dual activity , And then to unit 4, three places 、 Live more , It has accumulated rich experience in computer room level application .

AppActive  The open source , One is to provide a unified specification and definition for dojo , On this basis , We can share mature practical experience , In order to avoid the cost of infrastructure caused by cognitive bias 、 Application transformation cost 、 Operation and maintenance costs and other costs , So that “ How to live ” Become a de facto inclusive technology ; The second is based on standards , Provide the realization of multiple active capabilities at all levels .

In the specification of applying multiple activities , Defined  LRA（ How much life there is in the same city ）、UDA（ Different live ）、HCA（ Mixed clouds live more ） and  BFA（ The business flow is flexible ）4  Layer capabilities . stay  AppActive  In the first release , Provides  BFA  and  UDA  The basic ability of ,BFA  and  UDA  Strengthening ability of 、LRA  and  HCA  The capability of will become the direction of subsequent evolution .

With the help of the above abilities , Enterprises can achieve ：

• Minutes of class  RTO：
    Fast recovery time , The average recovery time of Alibaba's internal production level is  30s  within , The average time for customers to resume production in the external system  1  minute .

• Make full use of resources ：
    There is no problem of idle resources , Make full use of multiple computer rooms and resources , Avoid waste of resources .

• High handover success rate ：
    Relying on the mature multi activity technology architecture and visual operation and maintenance platform , Compared with the existing disaster recovery architecture , High handover success rate , The success rate of Alibaba's internal flow cutting thousands of times a year is as high as  99.9%  above .

• Accurate flow control
   
  ：
    The application of multiple active supports the flow from top to bottom , Relying on the accurate drainage ability, the specific business flow will be sent to the corresponding computer room , Based on this advantage, enterprises can incubate global enterprises 、 Focus on flow guarantee and other characteristics .

Open source in the field of distributed application governance , It's not just open source capabilities , What is more important is the unification of specifications and definitions ,AppActive  such ,OpenSergo  Also is .

In the pre conference questionnaire of the first Alibaba cloud middleware Developer Conference , Adopt a variety of microservice frameworks or  RPC  The proportion of developers who mix frameworks is up to  24%.“ The heterogeneity of language and service framework will increase the cost of service governance exponentially , First, the definitions, concepts and capabilities of each open source framework and protocol for microservice governance are inconsistent , Second, our governance models and governance rules are also different , Third, under the cloudy trend , Related to service governance provided by different cloud vendors  PaaS  service （ For example, Alibaba cloud's  Serverless  Application engine  SAE） Also different , This will make developers have very big limitations in both cognitive and technical iterations .”OpenSergo  Founder Wang Tao is accepting  InfoQ  In my interview, I mentioned .

2022  year  4  month ,OpenSergo  Open source , The project is sponsored by Alibaba cloud 、bilibili、 byte , as well as  Spring Cloud Alibaba、Nacos、Apache Dubbo、Sentinel、Sofa  Community joint maintenance , It aims to build a language independent 、 It has nothing to do with technical form , However, the unified service governance specification and implementation close to the business . His positioning and ability are just like the name of the project ,Open  It means open ,Sergo  It takes the two English words of service governance  Service Governance  The first part of the letter  Ser  and  Go, Together, it is an open service governance project .

OpenSergo  It contains the following three parts ：

• Control surface
  ： Developers can use  CRD  perhaps  Dashboard  Way to view 、 Modify the service governance configuration , And distribute these control information to the data surface , thus   Unified the rules of service governance , Developers no longer have to bind to an open source solution 、 On the services provided by a cloud vendor .

• Data side
  ：JavaAgent、Servcie Mesh、 Each access  OpenSergo  All microservice frameworks can receive service governance configuration , And apply it to the current business flow . All data planes can recognize  OpenSergo  Specified service governance configuration 、 Flow labels and other information , Make sure developers understand the cost .

• OpenSergo Spec
  ：Spec  Specifies the communication agreement between the control plane and the data plane , Make sure the user uses a  Spec  Different frameworks can be described 、 Different protocols 、 Microservice architecture in different languages , Let developers no longer need to pay attention to the underlying differences .

On top of that , And then gradually gray the whole link 、 Lossless online and offline 、 Traffic marking and other capabilities are integrated , Provide a complete set of service governance specifications and implementation schemes .

thus ,10  Open source projects , Covering architecture to governance , Pour out the technologies deposited by Alibaba cloud in the field of application middleware . Start with architecture , Good at management . They are both open source projects that run independently , Developers can cooperate with other open source components to form their own open source technology stack , It is also a complete set of open source solutions for distributed applications , At the same time, multiple open source projects are used to realize the rapid delivery of applications .

The story of open source is not over , Cloud Nativity continues to reshape the rules of the middleware game . The open source category of application middleware has been expanded with containers and  Serverless  The popularity of technology has been upgraded to the application cloud native , They and  Koordinator、KubeVela、OpenYurt、sealer、OpenKurise、Serverless Devs  And so on together constitute the open source panorama of Alibaba cloud in the application cloud native field .

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