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Part V Architecture Chapter 12th MongoDB Replica Sets Architecture (Introduction)

get more votes in Primary's primary election, Arbiter does not need specialized hardware to support it. The following is the replica set schema for adding arbiter:Note: A arbiter will always be a arbiter, meaning that in a replica set schema an arbitrator will always be an arbitrator, and a primary can become a secondary, A secondary can also be a primary in a re-election. However, the arbitrator cannot change in the architecture regardless of the oc

Concepts and differences between the C/S architecture and the B/S architecture

C/S architectureThe C/S architecture is a typical two-layer architecture. The entire process is Client/Server, that is, the Client Server architecture, the client contains one or more programs running on the user's computer, and there are two types of servers. One is the database server, and the client accesses the data on the server through the database connecti

Large Web site technology Architecture (iii)--Architecture core elements

http://blog.csdn.net/chaofanwei/article/details/27046795The so-called architecture, a popular saying is "the highest level of planning, difficult to change the decision", these plans and decisions laid the direction of the future development of things and the final blueprint.The software architecture is "an abstract description of the overall architecture and com

Evolutionary architecture and emergent design: Evolutionary architecture

Introduction: This period of evolutionary architecture and emergent design will address the various topics related to evolutionary architecture, includes important differences between design and architecture (and how to differentiate between them), some of the problems you encounter when creating an enterprise-class architect

N-tier Architecture N-tier architecture

The following content is both my understanding and the translation of the content, the title of the translation is:N -tier architecture, including two aspects of the architecture. On the one hand, N-tier 's physical architecture, on the one hand, is the logical architecture of n-tier . In general terms, the physical

c/S architecture and B/S architecture

The contents of this article are organized from http://blog.csdn.net/tennysonsky/article/details/45062079The C/S architecture and B/s architecture are two influential software architectures. c/S is a long history and very mature architecture; b/S is a new generation architecture, derived from C/s, there are many innova

SOA Architecture design experience sharing-architecture, responsibility, data consistency

easy to imagine, the biggest problem is how responsibilities are assigned. On the system architecture design of the biggest problem, in fact, is the allocation of responsibilities, allocation of reasonable, the implementation will be very flexible, the contrary will make the structure is very chaotic.The life cycle of software can be summarized into four basic processes, analysis, design, implementation, testing, of course, this is only the most sket

Cheap VPS is mostly what technical architecture mode (VPS segmentation architecture is how to sell) _ Server other

We know that the VPS server is a virtualization technology, build VPS server virtualization software and new cloud architecture solutions are many, they have advantages and disadvantages, therefore, different VPS Server service providers may use different virtualization technology to build VPS servers, Similarly, the construction cost of the VPS server will be different. The more common VPS virtualization technologies are: OpenVZ, Virtuozzo, VMware,

[Add to favorites] Introduction to the classic architecture model of the software architecture and Model

According to Linda Rising's book pattern almanac, there are more than 70 known architecture models. This is only a lot of statistics, including a lot of patterns that are generally considered to be design patterns, such as bridge, facade, interpreter, mediator and other models are generally considered as design patterns, however, in many cases, it can also be used as an architecture model, so it is often us

Micro-architecture and macro-Architecture

From: http://timyang.net/ Most engineers, including architects, started from the micro-architecture. Micro-architecture refers to the rationality of design and implementation in a local field, for example, the rationality of writing a sort program to achieve the complexity of time space, at the same time, it has reached a reasonable standard in terms of code readability, scalability and maintainability. How

Eight points of attention for the php code architecture. eight points of attention for the php architecture _ PHP Tutorial

Eight points of attention for php code architecture: eight points for php architecture. Eight points of attention for the php code architecture. This article summarizes eight points of attention for the php code architecture. I would like to share it with you for your reference. The details are as follows: I wrote code

Test Architect: Layered architecture of software architecture patterns 2

ExampleTo demonstrate how the layered architecture works, imagine a scenario, such as Table 1-4, in which the user sends out a request to get the customer's information. The black Arrow is the request stream that obtains the user data from the database, and the red arrow shows the direction of the return of the user's data. In this example, the user information is made up of customer data and an array of orders (orders placed by the customer).The user

Test Architect: Layered architecture of software architecture patterns 3

ExampleTo demonstrate how the layered architecture works, imagine a scenario, such as Table 1-4, in which the user sends out a request to get the customer's information. The black Arrow is the request stream that obtains the user data from the database, and the red arrow shows the direction of the return of the user's data. In this example, the user information is made up of customer data and an array of orders (orders placed by the customer).The user

[Architecture] Architecture Design of Android mobile app

[Architecture] Architecture Design of Android mobile appPreface Architecture, also known as software architecture, is an abstract description of the overall structure and components of the software, used to guide all aspects of the design of large-scale software systems. Software

14 Sets of Java Premium architecture lessons, cache architecture, deep JVM virtual machine, full text search Elasticsearch video tutorial

14 Sets of Java Premium architecture lessons, cache architecture, deep JVM virtual machines, full-text search Elasticsearch,dubbo distributed RESTful services, concurrent principle programming, SPRINGBOOT,SPRINGCLOUD,ROCKETMQ middleware, MySQL distributed cluster, service architecture, operation and maintenance Architecture

Design principles in Architecture Interface Separation principle (ISP)-Java Development Technology-experience the beauty of design patterns and algorithms in architecture

: Interface high cohesion is internally highly dependent and isolated as much as possible. That is, the method of internal declaration of an interface is related to a sub-module, and is required by this submodule. Interface design is limited: If you fully follow the principle of interface separation, there will be a problem, that is, the design of the interface will be less and less, so that the number of interface increases, the complexity of the system increased suddenly, rather than the

Part V Architecture Chapter 20th MongoDB sharding Architecture (tablet key selection)

search key Many applications access new data more frequently than old data, so we want the data to be roughly sorted by time, but also evenly distributed, so that we can keep the data we are reading and writing in memory and distribute the load evenly across the cluster. For example, there is an analysis program that allows users to access data over the past one months on a regular basis, and we want to keep the data as easy to use as possible, so we can shard on {month:1,user:1}, where mo

Brief introduction to the architecture of in-depth mysql-mysql architecture

About MySQL ArchitectureThe MySQL server is comprised of the SQL layer and the storage engine layer. SQL layer functions include permission judgment, SQL parsing and query cache processing, and the storage engine layer is the completion of the underlying database data storage operations. Such as:650) this.width=650; "Src=" Http://s1.51cto.com/wyfs02/M01/8B/D4/wKioL1haPWbDb90NAAAzcpVeDV4246.png-wh_500x0-wm_3 -wmp_4-s_3519715006.png "title=" 1.png "alt=" Wkiol1hapwbdb90naaazcpvedv4246.png-wh_50 "/

MySQL performance tuning and architecture design (i) impact of business requirements and system architecture on performance

purpose of the flow queue data is to determine the data in the table where the data will be keptis insert,update and delete, and each operation generates the corresponding log information. In MySQL, if theThe storage engine that holds the transaction, the amount of this log generation is doubled. And if we go through some mature third-party queue software toThe performance of this queue data processing function will be multiplied.3. Super-Large text dataFor MySQL versions prior to 5.0.3, the VA

Plug-in Architecture Design Practice 1: Introduction to plug-in System Architecture Design

This series of blog posts will use the Microsoft Ria technical solution Silverlight and the scalability management framework managed extensibility framework (MEF), with the plug-in architecture design as the wire, I share my skills and experience in implementing plug-in system architecture design in the RIA system built based on Microsoft Silverlight technology. In view of my limited ability, if you have an

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