architecture series

In the first installment of this series, the installation of SEQUOIADB and the deployment of a (pseudo) cluster are briefly described.The second and third section of the SEQUOIADB cluster is simple to operate.In this article, we will make a simple analysis of the architecture of the sequoiadb.Because of their own limited ability, for the architecture of such a ta

Model-Oriented Software Architecture-4th volume, distributed computing mode language (4th volume of the classic POSA Series) Basic Information Original Title: Pattern-Oriented Software Architecture Volume 4: A pattern language for Distributed ComputingOriginal Press: WileyAuthor: (de) Frank buschmann (UK) kevlin Henney (US) Douglas C. SchmidtTranslator: Xiao Pe

I'm going to start this series recently, this is my first series. About BlogEngine.NET I want to say is that it is really good design, code concise but many functions, really though small, spite Ah, and have a lot of Web2.0 characteristics, and even its every line of code is worth our research, its development team is great. In fact, many foreign personal blog is the use of blogengine.net plus a custom skin

are described below: 1. The client browser sends the request 2. Load Balancer forwards requests to Node 1 3. Exception occurred while node 1 was processing the business 4. Load Balancer switch request to Node 2 5. Node 2 complete the business request to return the results to the client request The client does not know that the server-side node 1 exception occurred during the completion of the above business request. At the core of the business is the real-time state replication between the

, developers define metadata, business rules, and constraints. This processing job is done by the agent in the existing information system. It connects to the available servers and executes the code with the server. It stores all the returned code and messages into the repository. It also stores statistical information, such as the number of records processed, processing time, and so on.Different repositories can exist in the same it architecture at t

user stories under that feature.Iv. Scrum User Story layerUser stories are a description of the functional points that are valuable to users, systems, or software purchasers, simply described as user needs, with a few sentences of the user's everyday language, the estimated workload can be completed in an iterative plan, and if the estimated workload is too large, it can be split into smaller user stories.Each user story contains multiple related tasks, changes, defects (bugs), test cases, and

broker Topic Each message published to the Kafka Cluster has a category, which is called topic. (Physically different topic messages are stored separately, logically a topic message is saved on one or more brokers but the user only needs to specify the topic of the message to produce or consume data without worrying about where the data is stored) Partition Parition is a physical concept, and each topic contains one or more partition. Producer Responsib

Debugging commands, and uses the communication layer to interact with the embedded part. Figure 1-5 CRC card: further decomposition of desktop applications Through the above case, we strongly feel that a series of important design decisions that software architects need to make are carried out in sequence by decomposing software systems. For example, without dividing the entire device debugging system into a desktop part and an embedded part, it is i

The following is a summary of my personal architecture. I originally wanted to share it within the company. Therefore, there is no illustration of colloquial content, if no information is found in all the content, it may be inaccurate because it is something in your mind. I hope you can discuss it with each other. Note:ArticleThe overall architecture experience is not specific to specific languages and pl

Original: Enterprise Management system front-end separation Architecture Design Series one permission model chapterThe previous time with Vue and react wrote two back-end management system Templates Vue-quasar-admin and 3YAdmin. RBAC-based permissions control is implemented in two projects. Because the job is back-end development, it is clear that the authority to control a management system should have the

management; #,realm coordination dispatch; #, event propagation; #, "Remember Me" service; #, create subject; #, sign out; 。。 If you want to implement all of these features within a class, it will be quite complex. But what if we further require that all of these features be flexible enough to be customizable? In order to provide more flexible configurable features, pluggable features, the implementation of Shiro is completely modular, the SecurityManager itself almost does not do anything,

ArticleDirectory Preface Document directory Last Preface Recently, many cloud computing-related content has been collected. On the one hand, it is due to personal interests and hobbies. On the other hand, it has participated in some conferences and seen the future development direction of enterprises, In addition, in light of the current work needs, I would like to summarize some of the current knowledge. Of course, this series