angular 2 architecture

call, the Object ID must be known. 2) as long as the identifier of an object changes, you must modify all other objects that explicitly call the object and eliminate the resulting side effects. 3) The operation associations of different objects are weak. Object-oriented is currently the most popular programming method, basically it is nothing. however, this does not mean that other styles are not good, because it is difficult to find a program that o

The speed up development version of ERP provides 2 compression methods to access the three-tier architecture system, in order to maintain compatibility with 2 compression modes, if you encounter such errors:Should be the server compression mode and client compression mode is inconsistent, you can follow the following steps to modify, in the client program install

;(4) Security Protection: Hardware equalization equipment In addition to load balancing function, but also has a firewall, anti-DDoS attacks and other security functions;(5) Maintenance angle: Provide a good maintenance management interface, after-sales service and technical support;(6) Local tyrants company: F5 Big Ip Price: 15w~55w range; A10 Price: 55w-100w;Disadvantages(1) The price is expensive;(2) Poor expansion capacity;4.4 Summary(1) General h

SharePoint Workflow architecture (2) Event Processing and sharepointworkflow According to Andy Li, I have read the best and most thorough article on SharePoint Workflow architecture. After reading his article, I learned about the working mechanism of SharePoint Workflow and how to locate the problem. Therefore, we hope to help Workflow developers. This blog was

servers will be much smaller than the primary server performance capacity. Regardless of setting up a secondary server, you need to understand the specific needs of the business and configure the secondary server appropriately.Log shipping technology does not require an infrastructure like a Windows failover cluster that does not require shared disks; Conversely, in a log shipping deployment scenario, in order to avoid the risk of storage becoming a single point of failure, the primary and seco

Go to. NET Architecture Design-Chapter 6-service layer design (Part 2) The previous article introduced some basic knowledge of the service layer and briefly introduced the knowledge of SOA. This article mainly introduces some modes that can be used in the service layer. This topic is as follows: Fa C ade Mode Document Message and Request-Reponse Modes Reservation Mode Idempotent Mode Fa C adeDesign

Article Title: high-performance server technology based on NUMA architecture (2 ). Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. 　　 Iii. NUMA Scheduler In NUMA system, because the latency of local memory access is lower than that of remote memory access, the performan

: This article mainly introduces [reading notes] 1 _ exploring nginx architecture _ 2 _ how to handle high concurrency events. if you are interested in PHP tutorials, refer to it. Original article: http://tengine.taobao.org/book/chapter_02.html Nginx uses multiple worker methods to process requests. each worker has only one master thread, so the number of concurrent jobs that can be processed is limited. h

of relevancy actors (relevancy in the next section)-Avoid unnecessary bnetdirty.-Avoid unnecessary actor Spawn on the server side, such as exploding blood particles, so that the server-side players can see.-Avoid some relevancy that are not related to gameplay, (well, here is the relevancy, which means that sometimes some actors are far from you and will not be in the camera and affect you.) That's when you don't need to do network synchronization for these actors. Bandwidth consuming)-The numb

EntityFramework-based Master/Slave database read/write splitting architecture (2)-Improved Configuration and added transaction support, and database Master/Slave SeparationGo back to the directory and check the complete code.Directory in the (https://github.com/cjw0511/NDF.Infrastructure): src \ NDF. Data. EntityFramework \ MasterSlaves last in the middle (http://www.cnblogs.com/cjw0511/p/4398267.html), we

can be directly returned to the user browser, to avoid load Balancing server network card bandwidth becomes a bottleneck. Also known as Direct route mode (DR Mode). Such as:Advantages: good performance;Cons: Complex configuration;Practice Recommendation: Dr Mode is currently the most widely used load balancing method.2.5 Mixed-load balancingDue to the differences in hardware devices, sizes, and services provided in multiple server farms, it is possible to consider the most appropriate load bala

1 Creating a server channeland registering the channel with the. Net remotion RuntimeRegister a well-known object1TcpServerChannel channel =NewTcpServerChannel (9000);2 3ChannelServices.RegisterChannel (channel,false);4 5Wellknownservicetypeentry remobj =NewWellknownservicetypeentry (6 typeof(Myremoteobject),"Myremoteobject", wellknownobjectmode.singlecall);8 9 RemotingConfiguration.RegisterWellKnownServiceType (remobj);Ten

, let's talk about this. Next, I remember that I used to take this course in college: software demand analysis and design. The instructor defined the requirement to know what the user needs! Finally, let's talk about the document's problems. "Software Engineering" emphasizes that there are documents step by step. I personally understand the role of this document: 1. It provides an interface for transparent access between the layer and the layer. For example, in the requirement document, the

concurrency has been difficult, hardware load balancing can support (3) Stability: Commercial hardware load balancing, after a good rigorous testing, from a large-scale use, in the stability of high; (4) Security Protection: Hardware equalization equipment In addition to load balancing function, but also has a firewall, anti-DDoS attacks and other security functions; (5) Maintenance angle: Provide a good maintenance management interface, after-sales service and technical support; (6) Local tyra

Three Meanings of Java virtual machine:-Abstract specifications-A specific implementation-A running Virtual Machine instance ------------------- Life cycle of the Java Virtual Machine:A Java Virtual Machine instance is responsible for running a Java program.When a Java program is started, a virtual machine instance is born. When the program is closed and exited, the virtual machine disappears.There are several Java programs running, and there are several Java Virtual Machine instances. Each Java

SharePoint Workflow architecture (2) Event Processing Pipeline and sharepointworkflow According to Andy Li, I have read the best and most thorough article on SharePoint Workflow architecture. After reading his article, I learned about the working mechanism of SharePoint Workflow and how to locate the problem. Therefore, we hope to help Workflow developers. This

In the home company work, the design of the Tens PV architecture, now put out, leave to do commemorative:650) this.width=650; "title=" 123.png "alt=" wkiol1vlqsitvzcmaabm1y0pvro880.jpg "src=" http://s3.51cto.com/wyfs02/M00 /6c/88/wkiol1vlqsitvzcmaabm1y0pvro880.jpg "/>As for the specific details of the structure, I will not explain it, directly look at the picture! 650) this.width=650; "alt=" J_0057.gif "src=" Http://img.baidu.com/hi/jx2/j_0057.gif "/>

Architecture and installation of Sphinx + MySQL full-text retrieval (2) II. installation steps of MySQL + Sphinx + SphinxSE: 1. install python support (The following is for CentOS systems. for other Linux systems, use the appropriate method for installation) Yum install-y python-devel 2. Compile and install LibMMSeg (LibMMSeg is a Chinese word segmentation softw

used to build a private memory partition management mechanism, which contains functions such as creating mempart, requesting/releasing Mempart, obtaining partition information, etc.(6) CPU Interface part: UC/OS-II for specific CPU porting part, due to the SP and other system pointers, usually written in assembly language, including task switching, interrupt processing and other content.3. Uc/os-ii Task StatusIn Uc/os-ii, a task is a thread, and the task can assume that the CPU belongs entirely

that each abstract has clear independence. 4. Consider the ways in which those classes collaborate with one another and redistribute their responsibilities accordingly so that no class within a collaboration does too much or too little. Consider how to allow those classes to interact with other classes and re-assign their responsibilities so that there are not too many or too few classes in collaboration. For example, figure 4-10 shows a set of classes drawn from smalltalk, showing the distrib