exadata architecture

before importing another library that causes the conflict. Of course it should be before other conflicting libraries are used, unless jquery is the last one to import.Because it is relatively simple, we have a direct code commentary:Var _jquery = window.jquery, _$ = window.$;jquery.noconflict = function (deep) { if (window.$ = = = JQuery) { window.$ = _$; } if (deep window.jquery = = = JQuery) { window.jquery = _jquery; } return jQuery;}; If we need to use both

sick half a day.Let's see how many places we need to change.1. Database2, Pojo3, DAO's configuration file4, interfaceYou may also want to modify the action and other places. And the configuration file is prone to bugs ...Anyway, I'm fed up with the days like this ...Two-tier streamlined architectureLater, after entering Hunan province, after the company framework, I reformed a 2-tier architecture using SPRINGMVC and Oracle stored procedures to implem

Understanding rest and understanding the future of the Web For web development, the Chinese version of the landmark Fielding's PhD thesis on rest has been officially released. Dr. Roy Thomas Fielding is a major designer for Web architecture standards such as HTTP, Uri, and so on. For the first time in his doctoral dissertation in 2000, he gave a systematic and comprehensive exposition of rest's architectural style and design ideas. This paper is a v

1. Stability principle The architecture is as simple and clear as possible and not overly designed. 2, attention to isolation treatment Stable business and variable business to separate processing, the core business and non-core business to separate processing, electrical business and ancillary processes to separate, application and data separation, service and implementation details separation, foreground and background separation. 3. Abstract ap

(If you feel help, please help me to recommend, add attention, thank you.) Your support is the motivation for me to keep on updating my articles. This blog will gradually launch a series of large-scale web site architecture, distributed applications, design patterns, architectural patterns and other aspects of the series of articles) Dynamic application, which is relative to the static content of the website, refers to the network application software

Article Description: Renren Mobile Development architecture. Objective Talking about the development of mobile phone operating platform first to say the development of mobile terminals, because the development of the platform can not be separated from mobile terminals, the development of mobile terminals in the last decade and the future of mobile terminals will generally be divided into the following four stages: Related Vendor Content

A30;SELECT * from V$fixed_view_definition;View data dictionary information-DictCOL table_name format A30;Col comments Format A30SELECT * from Dict;SysauxOracle 11g new default tablespace, which mainly stores data objects other than the data dictionary;acts as a secondary table space for the system, reducing the load on the system table space;Typically does not store user data and is automatically maintained internally by Oracle SystemsUNDOUndo table space for storing revocation information;When

called block, Chunk), when we divide a block interval into two, a block becomes two blocks. If you add a new Shard, MongoDB can fetch 100G data from the top of each shard and move the blocks onto the new Shard, so that the new shard gets 400G of data that needs to be moved to minimize the amount of data, only 400G. As shown in the following:Description: When adding shards in the above diagram, each shard can provide data directly to it. This is the way MongoDB allocates data, and when a block g

Preface Maybe I have read the previous articleArticleAfter I listed that part of the information, I still have many friends who do not know about the domain-driven design. As some netizens mentioned in the above comments, the Spanish Microsoft team also made a case of a domain-Oriented Distributed Application System architecture. The address is http://microsoftnlayerapp.codeplex.com /. On the homepage of this site, I have explained the domain-driven

, 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 sketchy expression.

Statement: The material used in this column is written by the VIP students of the Kay Academy, who has the right to be anonymous and has the final right to interpret the article; The Edith Academy is designed to promote students to learn from each other on the basis of public notes.About b/S and C/s:The management software uses B/s architecture, and the game is based on the graphics card to achieve a brilliant effect, so use C/s

Discuz! NT built an excellent architecture at the beginning of design and development, greatly improving the scalability, scalability and reusability of the software. In addition to discuz! The NT structure is clearer and easier to maintain. It also provides great convenience for users to conduct secondary development and improve Forum personalization. Discuz! NT adopts the following layer-4 structure. Let's briefly introduce it:Www.chinaz.com (1) di

Currently, cache is widely used in website architecture to provide the performance of Web applications. The following types of cache architectures exist for different websites. (1) Single-host Cache (2) Simple distributed cache (3) cache cluster Using Replication (4) cache cluster using hash (5) high-performance, high-reliability cache Cluster The following is a detailed analysis of the applicability and advantages and disadvantages of the above cache

Android architect's path-architecture-code drills, android ArchitectureFrom EIT styling -- "codeArchitect's work:Major task: Architects (strong Dragon) follow the EIT model and divide E. I. T into three elements.Strong Dragon control: -- production, strong Dragon control I, outsourcing will not be out of control-- System plane. E is the control point and I is used to drive T.Apply commercial terms: Frameworks and plug-ins use different terms to expres

Virtualization, grid computing, utility computing, and other technologies ). However, can Private clouds solve all problems? Of course the answer is no! Because databases and other memory-or I/O-intensive (Note: they are intensive) applications, they are currently not suitable for use in cloud computing environments. This is caused by a situation known as "falling into" by the industry. Compared with CPU-intensive applications, memory-or I/O-intensive applications consume a very small amoun

processing capability can be expanded. Server Load balancer is a typical high-scalability architecture. In addition, it can also split services by different servers to implement different services. Generally, load balancing is easier for Stateless web services, and horizontal scaling is difficult at the database level, especially for database write operations. Generally, you can use LVS or haproxy to achieve Load Balancing (of course, you can also us

performs instance recovery when the instance is started and cleans up temporary segments that are no longer in use.Pmon (Process Monitor, progress monitoring)Pmon restores when a user process fails, responsible for cleaning up the memory area and releasing the resources used by the process.reco (Recovery, recovery process)Reco is used for the consistency of data in a distributed database maintained in a distributed environment.Lckn (lock, lock process)A blockade between multiple instances in a

China, who has studied Docker's original code. Instead of most Docker developers talking about Docker from the application side, Sun Hongliang on 2015 Container Summit, choose from the Docker Code design architecture to analyze the pros and cons. Sun Hongliang also pointed out that although the container technology has been developed for a long time, but through the Docker unique image design, the container technology in recent years to flourish. Uni

I have been busy with cool mallCodeI have no time to read the books I have bought. I have time to sit down and take a good look at the books I have bought over the weekend. Whether you want to learn a piece of knowledge or read a book, you must first know what it is, to know why it is, and finally how to do it. Reference the original words in the book to describe this book and apply the object-oriented concept to. NET applications.ProgramArchitecture, design, and development. Focuses on busi

Http://www.aosabook.org/en/index.html (chapter 2) English version of the reference here Translation: http://www.oschina.net/translate/scalable-web-architecture-and-distributed-systems Open-source software has become the basic component of some super-large websites. With the development of those websites, some best practices and guiding principles have emerged around their architectures. This chapter attempts to explain some key issues that need to be