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process to see Figure 3 Player data query processWhen modifying player data, three layers of data need to be synchronized. The data is first modified in memory, then the Modify command is initiated to the data server, and the data server presses the Modify command into the redis database command queue and the mysql command queue, respectively. Two more threads execute asynchronously on the command queue, completing the data write-back. Figure 4 Da
: hashing algorithm: The way of using user_id%; Range: can be divided according to the range of user_id character values, such as 1-1000 for one area, 1001-2000 for another, etc. mapping relationship: is the corresponding partition of the user_id exist in the database to save, when the user operation, first to query the partition, and then to operate.You can click to join the group: 650385180 "Java Architecture
BI architecture and data warehouse design
(14:26:41)BI architecture and data warehouse design
A data warehouse solution is often related to a large Bi strategy. When you plan to use the fast tracing architecture, the most important thing is to understand the role of the
Design guidelines for Web distributed systemsThe following is an example of uploading and querying images to illustrate the design considerations of distributed Web architectures and commonly used methods to improve performance. This example provides two simple functions for uploading images and downloading images, and has a hypothetical condition? :-Can store an unlimited number of images, that is, storage
On the surface, we are developing a variety of different applications. In fact, the corresponding architecture design is relatively stable. Programming in a good architecture is not only a pleasing thing for developers, but more importantly, the software can show a healthy posture. The architecture
Application System Architecture Design
On the surface, we are developing a variety of different applications. In fact, the corresponding architecture design is relatively stable. Programming in a good architecture is not only a pleasing thing for developers, but more import
: Service users only need to enter some information on the webpage to call the remote heterogeneous platform service. This is also the ultimate goal of users and systems.
Service Management: A service provider can manage its published services, such as modifying service data, deleting the provided services, and viewing the consumption records of the services. Figure 1 system function Diagram
2
System ArchitectureThe system is implemented using J2EE WEB technology and uses the layered
be changed because the business itself is constantly evolving, if we make all the designs based on the database at the beginning, the database table must be changed once the business changes. If we integrate the hexagonal architecture and regard the database and the exposed controller as the infrastructure, we should
Common three-tier Architecture Design
The most common architecture of software systems is the layer-3 architecture. In fact, the entire business application is divided into presentation layer, business logic layer, data access layer, and so on. Some of them need to be more detailed. By decomposing business details, dif
The content of this share consists of five major parts:
Redis, Rediscluster and Codis;
We love consistency more;
Codis experience in the use of production environments and pits;
Some views on distributed database and distributed architecture;
Q A link.
?? Codis is a distributed Redis solution that differs from the official pure-to-peer model, and CODIS uses the proxy-based so
Original: http://mp.weixin.qq.com/s?__biz=MzAwMDU1MTE1OQ==mid=208733458idx=1sn= 691bfde670fb2dd649685723f7358feascene=1key= C76941211a49ab58cb17c68ecaeeda0f1c083d9508a0f6629461fff9025fd87de4706bd9c1730e0ddbab70568b34b16aascene=0 uin=mjk1odmyntyymg%3d%3ddevicetype=imac+macbookpro9%2c2+osx+osx+10.10.3+build (14D136) version= 11020012pass_ticket=bylvrokfz4zuu0zae%2bozucg34yi2tnwf7ivxwu5vlj8kujwfpajt7wdhjqeo1gclThe content of this share consists of five major parts:
Redis, Rediscluster and
Many people often talk about the architecture design of large websites, including hardware and software.
Two excellent articles are recommended here.ArticleHow to upgrade or expand the existing system architecture design as business/traffic increases.Server Architecture
A large web game server should contain several modules: network communication, business logic, data storage, guardian monitoring (not required), where the business logic may be divided into several sub-modules according to the specific needs.
The module mentioned here can refer to a process, or a thread that exists, essentially a package of classes.
For server concurrency, either a single-process multi-threading, or a multi-process single-threaded approach, say the pros and cons of two ways:
O
, according to the operation of the core business to respond. 4. Common (public Facilities level) 4.1, Rdf.common: This class library mainly for the entire project to provide public operation method, and log log record, here I use Nlog, provides the log interceptor features, as long as the label can record the method may occur the exception, equivalent to the previous exception capture and processing, The processing here only needs to be labeled enter a message that may throw an except
. Which systems are only descriptions, not the focus of this figure. This figure focuses on data storage and transfer description. Design the database tables to be completed in this period.
Implementation view: Technology (view layer, implementation layer, persistent layer), package (project package relationship and project directory), pom file (jar dependency, lifecycle ).
Process view: Describe th
Http://blog.sina.com.cn/s/blog_77e858f80100xvy7.html
When considering the design of the system architecture, not only the technical implementation, but also the business considerations, design for business considerations, will let us make a more reasonable choice in technology.
In this paper, we discuss the architecture
Record an example of A. NET platform-Based Hierarchical Architecture Design in the software architecture and design patterns class.
I studied and made a forum on my own from the last summer vacation, and then used the HS course selection system and web course design last s
overwhelmed; then there is the vertical partitioning of data, the vertical partitioning of data is to write more frequent data tables, such as user table _user, or Order table _orders, then we can separate this two table, put on a different server, if the two tables and other tables exist in the table query, then only the original SQL statement to split, first query a table, in the query another, although this will consume more performance, but compared to the kind of large data synchronization
the spring architecture and design principles of the book as the core, combined with their own experience and questions, as well as the network of Daniel's articles, to complement their shortcomings in this area.
The author of this book is Jivenko, based on spring source code, reveals the design idea and architectur
Architecture | Design System Adoption | b/s structure, divided into three layers, respectively, data access layer, business rules layer, web appearance layer. They each have their own responsibilities, separate and coordinate with each other to form a whole functional system of software, the responsibility of the data access layer is responsible for the access to the data source (where the data source refer
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