> Dubbo OPS is about to release the first version, it supports service > governance features in Dubbo2.7, including tag route, application scope > rules, metadata report, etc. I've deployed a demo here: > http://47.91.207.147/#/service <http://47.91.207.147/#/service>.
Great! I have tried and encountered some problems when adding and updating governance rules yesterday, I will report Github issues later. Jun > On Dec 21, 2018, at 3:08 PM, Minxuan Zhuang <[email protected]> wrote: > > Dubbo OPS is about to release the first version, it supports service > governance features in Dubbo2.7, including tag route, application scope > rules, metadata report, etc. I've deployed a demo here: > http://47.91.207.147/#/service <http://47.91.207.147/#/service>. > the code locates here: > https://github.com/apache/incubator-dubbo-ops/tree/metadata > <https://github.com/apache/incubator-dubbo-ops/tree/metadata>, and I'll merge > it to develop branch later. > > On Fri, Dec 21, 2018 at 11:37 AM jun liu <[email protected] > <mailto:[email protected]>> wrote: > >> Two more things to mention: >> >> 1. I am thinking of merge this dev-metadata branch back to the master. >> Both these two branches have the same version 2.7.0-SNAPSHOT and they >> together consist of v2.7’s release candidates. While they are evolving at >> the same time concurrently, conflicts keep happening. I have been kept >> merging the master branch to dev-metadata to try to avoid conflicts to the >> most extend during the development of dev-metadata. Now, since the changes >> in dev-metadata are stable enough, at least it won’t be a block for the >> development in master (which is also the biggest concern why we created >> this new branch), I think it’s time for us to merge the changes back and >> work on the unified master branch. >> >> 2. Is there any plan for the release of OPS? Most of the new features >> introduced in v2.7 are service governance related abilities and most users >> have get used to using Dubbo OPS to do interoperability with their Dubbo >> services. Thus I think it would be great if an OPS version supporting these >> features can be released at the same time as v2.7 or slightly after it . >> @Minxuan @Majinkai, I know you guys are working on OPS project, any news >> to update? >> >> Jun >> >>> On Dec 21, 2018, at 10:35 AM, jun liu <[email protected]> wrote: >>> >>>> 1. Prioritization of centralized configuration >>> >>> Now, the centralized configuration or externalized configuration is >> implemented to has the highest priority by default. For flexible concerns, >> a switch is designed and opened to users so that they can override the >> default value, for example, you can use the following JVM property to give >> centralized configuration a lower priority than the local one: >> dubbo.configCenter.highestPriority=false. >>> >>>> 2. The logic of the route is more complicated, and the compatibility >> with >>>> the original low version is guaranteed. >>> >>> When saying of complexity, I guess you mainly refer to the routing >> module, because this module is one of the most evident parts that has >> changed in this version and is also newly introduced. Its main purpose is >> to improve the performance of the runtime. After all, there will be some >> performance loss when routing is executed for address filtering every time >> an RPC is executed. >>> However, I agree we should be really careful about this cache part since >> it works as an crucial path on the RPC wire. Some possible drawbacks I can >> come up with it now are: excessive resource usage, priority guarantee of >> routers in chain, etc. I think we can discuss more about the technical >> details of this part, give it more test and then decide whether to release >> it this time or wait until it’s mature enough. >>> >>>> 3.Tag routing has been modified, how is the compatibility with the >> original? >>> >>> It has full backward compatibility with the original implementation with >> only the supporting of of DynamicConfiguration added. >>> >>>> 4. How does the Environment clear responsibility? It is best to have an >>>> independent description. >>> >>> Sorry, I don’t understand this one. Basically, you can think Environment >> as the counterpart of that in Spring. I agree we should add a document >> describing the design purpose and how to use it. >>> >>> Jun >>> >>>> On Dec 14, 2018, at 12:26 PM, victory <[email protected] >>>> <mailto:[email protected]> <mailto: >> [email protected] <mailto:[email protected]>>> wrote: >>>> >>>> All of this features are the biggest concert in the community. >>>> I have some questions： >>>> 1.中心化配置的优先级 >>>> 2.路由的逻辑比较复杂，和原来低版本的兼容性怎么保证 >>>> 3.Tag路由改造了，和原来的兼容性怎么样？ >>>> 4.Environment这个东西是怎么明确职责的？最好能有个独立的说明。 >>>> ---------- >>>> 1. Prioritization of centralized configuration >>>> 2. The logic of the route is more complicated, and the compatibility >> with >>>> the original low version is guaranteed. >>>> 3.Tag routing has been modified, how is the compatibility with the >> original? >>>> 4. How does the Environment clear responsibility? It is best to have an >>>> independent description. >>>> >>>> >>>> jun liu <[email protected] <mailto:[email protected]> >>>> <mailto:[email protected] <mailto:[email protected]>>> >> 于2018年12月7日周五 下午8:11写道： >>>> >>>>> Hi, All >>>>> >>>>> I’ve just posted some blogs[4] on Github issues relating to the design >>>>> principles and implementations of V2.7.0, the content are based >> mainly on >>>>> my own understanding of the 2.7.0 codebase (hosted on branch >>>>> dev-metadata[1]) and the previous discussions[2][3]. >>>>> >>>>> Recently, I spent plenty of my spare times on 2.7.0, mainly focusing on >>>>> metadata refactoring, I am happy to see that v2.7.0 is on a right >> direction >>>>> to meet community requirements and keeps evolving. The main changes or >>>>> features already included in v2.7.0 branch are: >>>>> >>>>> * Config Center: Zookeeper, Apollo, Nacos >>>>> * Externalized Configuration >>>>> * Service governance enhancement: dynamic configuration & routing rule >>>>> * Repackage to 'org.apache.dubbo' >>>>> * Java 8 support >>>>> * Async programming support >>>>> >>>>> Most of the features above have been mentioned or discussed on the >> mailing >>>>> list or Github issues days or months ago. But during the design and >> coding >>>>> process, more details come up that need to be further discussed and >>>>> decided. The design principles and implementations on v2.7.0 branch >> now are >>>>> far from the the final decision, they may be not the best choice or >> even >>>>> turn to be unreasonable, so you can think them as a prototype >>>>> implementation provided for your reference. Now, we need to know your >>>>> opinions on v2.7.0, please help to review the designs and codes, >> whenever >>>>> you have better ideas or suggestions, please don’t hesitate to let the >>>>> community know. >>>>> >>>>> FYI: If you want to know more implementation details and try to read >> the >>>>> codes or commits directly, you may find it hard to follow, because >> there’re >>>>> too much file changes in there. So I would suggest you read the >> summaries I >>>>> wrote in the blogs first and then dive into the code related to the >> part >>>>> you interest one by one. >>>>> >>>>> 1. https://github.com/apache/incubator-dubbo/tree/dev-metadata >>>>> <https://github.com/apache/incubator-dubbo/tree/dev-metadata> < >> https://github.com/apache/incubator-dubbo/tree/dev-metadata >> <https://github.com/apache/incubator-dubbo/tree/dev-metadata>> >>>>> 2. https://github.com/apache/incubator-dubbo/issues/2030 >>>>> <https://github.com/apache/incubator-dubbo/issues/2030> < >> https://github.com/apache/incubator-dubbo/issues/2030 >> <https://github.com/apache/incubator-dubbo/issues/2030>> >>>>> 3. https://github.com/apache/incubator-dubbo/issues/2341 >>>>> <https://github.com/apache/incubator-dubbo/issues/2341> < >> https://github.com/apache/incubator-dubbo/issues/2341 >> <https://github.com/apache/incubator-dubbo/issues/2341>> >>>>> 4. https://github.com/apache/incubator-dubbo/issues/2919 >>>>> <https://github.com/apache/incubator-dubbo/issues/2919> < >> https://github.com/apache/incubator-dubbo/issues/2919 >> <https://github.com/apache/incubator-dubbo/issues/2919>> >>>>> >>>>> Jun >>>>> >>>>> >>>> >>>> -- >>>> >>>> Best Regard! >>>> cvitory
