JP2004501437A - Delivery dynamic web page caching system - Google Patents

Abstract

A method for generating a dynamic web page includes downloading a page template and a page component of the dynamic web page from a server to a local cache memory, creating a web page from the page template and the page component in the local cache memory, and Includes providing web pages.

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to distribution dynamic web page caching.
[0002]
Problems to be solved by the prior art and the invention
Computer networks, such as the Internet and private company networks, allow users to search for information from a wide variety of sources. They also allow publishers, information providers, advertisers and other sources to provide information to these users. A "server" is a computer system that is connected to a network and stores and supplies information. One type of server on the Internet is a web server that provides a connection to a website. Each web site has one or more "web pages" formatted for storing information such as text, images, sounds, animations, and three-dimensional simulations in a tree structure. In addition to many publishers such as newspapers and magazines, companies, individuals and organizations have also established web pages. A "client" is a computer system that is connected to a network and generally controlled by users who may request information from servers on the network. In particular, clients at various locations can view a web page by "downloading" a copy of the web page from the server where the web page is stored.
[0003]
[Means for Solving the Invention]
In one aspect, the invention features a method of dynamic web page caching that includes receiving and confirming a request for a web page from a client, whether a page template and a page component tag of the web page are in a local cache memory. I have. If the page template and page component tag are not in local cache memory, the page template and page component tag are downloaded from the server to local cache memory. The web page is assembled from the page templates and page component tags in the local cache memory, and the web page is sent to the client.
[0004]
Embodiments may include one or more of the following.
Passing a cookie representing a client session identifier (ID) from the server to the local cache memory to potentially manage the session.
The page component tag may include page location information, parameters for passing from the server to the page template, and deadline information. They may also include binary large object (blob) components.
[0005]
In another embodiment, the invention features a network including a server having a collection of data including web pages, and a server link connecting the server to the Internet. The cache system link connects the dynamic web caching system to the Internet. The dynamic web caching system includes an assembly engine for assembling a web page from components detected in a local cache, and a delivery engine for delivering the web page to a client.
[0006]
Embodiments of the present invention have one or more of the following advantages.
The assembling of a web page containing dynamic components can be accomplished by minimizing or eliminating the need for the client to assemble the page requested by the server, and by providing the web page to the client via the Internet. Make sending more closely.
[0007]
The details of the specification of the dynamic page component are cached at the end of the network, which facilitates the assembly and distribution of the dynamic component away from the server.
[0008]
Caching the assembly and distribution of dynamic page components at the edge of the network will result in an enormous number of dynamic page views each day. This is because a huge number of dynamic page components are generated without going through the Internet.
[0009]
If the satellite server and / or the server goes down, that is, is offline, other satellite servers can perform request processing for assembling and distributing pages. No synchronization between satellite servers is required. Each satellite server is independent and unique, independent of a bunch of other satellite servers.
[0010]
One or more details of the invention are set forth in the accompanying drawings and description. Other features, objects, and advantages of the invention will be apparent from the description and drawings, and from the claims.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
As shown in FIG. 1, a web page 10 defines one or more areas, such as areas 14, 16, 18, and 20. Each region 14, 16, 18, 20 is also referred to as a component and is part of the web page template 12. Components 14-20 may include different types of information such as text, images, graphics, animations, timers, links, and the like. Each component 14-20 of the web page template 12 may be further layered as static or dynamic. Static components do not change for a certain period of time. A dynamic component is a component that is the result of a computer process performed when a web page 10 is requested. Due to their properties, dynamic components exist for discrete times and are typically assembled when a client requests them from a server. A server using the specification characteristics of the dynamic component establishes a web page and distributes the web page to a requesting client.
[0012]
One example of a dynamic component includes the current weather. The current weather can change between requests, so that a response can be assembled to the user's request. Another example of a dynamic component includes a personal message such as "Hi Joe".
[0013]
The web page 10 is typically located on a server (not shown). The client requests viewing of the web page 10 from the server. A server having details of each component 14-20 in the web page 10 assembles the web page 10 with the associated components 14-20 and sends the web page 10 to the requesting client. In practice, each component 14-20 is a static component, and the web page 10 is pre-assembled and stored in a database associated with the server. Therefore, when a web page 10 is requested by a client, the server loads the previously stored web page and delivers it to the browser of the client's system. If one or more of the components 14-20 is dynamic, the server assembles the dynamic components with component details known only to the server prior to delivering the web page 10 to the client.
[0014]
A server that can respond to the web page 10 can recognize the components 14 to 20 of the web page template 12 in detail. Each component 14-20 is defined by a set of parameters or tags known only to the server system. For example, each component may include an associated web page template 12, a tag requesting to obtain the information contained within the component, no matter what parameters need to pass through the component, and time period information. Have. These tags may include page information and blob information. blob is a binary large object (Binary Large Object), and is used, for example, to represent an image. Only the server recognizes each parameter. The components are surrounded by components 14-20 that allow the server to assemble and serve the web page 10 to the requesting client.
[0015]
As shown in FIG. 2, the network 40 with the distributed dynamic web page caching process includes a number of Internet Service Providers (ISPs) 42, 44, 46, 48 connected to the Internet 50. The ISPs 42-48 provide client and server computer systems that connect to the Internet 50. Network 40 includes a server 52 connected to ISP 44. Network 40 also shows client 54 having browser 56 connected to ISP 48. The network 40 includes an arrangement of satellite servers connected to the ISP 48 and a satellite server 60 connected to the Internet 50. In the preferred embodiment, network 40 includes either a satellite server 58 connected to ISP 48 or a satellite server 60 connected to Internet 50. In other embodiments, the satellite server may be located at other locations that are “end” of network 40. Typically, the network has one satellite server per port, per domain. When a client 54 requests "provision" of a web page from a server 52 via a browser 56, for example, in conjunction with the server 52, the satellite server 58 assembles static and dynamic components of the web page and sends the web page to the browser 56. Give the page.
[0016]
As shown in FIG. 3, the satellite server 80 includes a content server 82 and a content server 84. Content servers 82, 84 are linked to web server 86 and web server 88 via separate plug-ins 90, 92. The web servers 86,88 are linked to cache memories, separately labeled 94,96,98,100. Each of the cache memories 94 to 100 is linked to the local director 102. Local director 102 includes a link 104 that provides communication to the ISP or the Internet.
[0017]
In operation, when a request to serve a web page is received on link 104, local director 102 may check cache memory 94-100 to determine if the requested web page template and component tag are present. To explore through. If the component tag of the requested web page is included in one of cache memories 94-100, content server 82 or content server 84 assembles and requests the web page from the cached template and component tags. The assembled web page is transmitted to the client via the link 104.
[0018]
As shown in FIG. 4, the distributed dynamic web page caching procedure 120 includes a step 122 of receiving a page request from a client. Procedure 120 determines at step 124 whether the requested page component tag and web page template are in one of the satellite server caches. If the web page and the associated web page template and page component tags are in the satellite system server cache, the satellite system assembles and requests the web page at step 126 with those web page templates and page component tags. The assembled page is delivered to the client at step 128. If the web page template and component tag of the requested web page are not in the satellite server cache, procedure 120 retrieves the web page template and the associated page component tag from the server at step 130. If the information needed to assemble the page components is obtained from the server, the server accumulates information from one of those cache memories at step 132. The procedure 120 transmits the web page assembled according to the web page template and the page component tag associated with the satellite server at step 134, stores the web page template and the component tag in the cache memory of the satellite server at step 136, And delivering the assembled page to the requesting client at step 128.
[0019]
Using procedure 120, the second page access will find the required information needed to assemble the requested web page in the satellite server cache memory. This is because the satellite server has the knowledge obtained from the server, ie, the knowledge to create a web page from the presence of the web page template and the associated page component tag in the satellite server cache memory. The satellite server does not need to have the logic to create the dynamic page component, but the satellite server can get the required logic from the server.
[0020]
Typically, procedure 120 maintains a duplicated cache. That is, all cache components are on every content server in the network. Therefore, if one satellite server fails, the other satellite server will perform the necessary work to serve the requested web page. No synchronization between satellite servers is required. Each satellite server is independent and unique, independent of a bunch of other satellite servers.
[0021]
Procedure 120 also maintains session information. In an embodiment of the invention, the session information is contained in a cookie that passes between the client and the satellite server. In this method, a new session is not created by a second request for a web page by the same user requesting the web page from the satellite server.
[0022]
Although numerous embodiments of the invention have been described, various modifications will be understood without departing from the scope and spirit of the invention. Therefore, other embodiments are intended to be within the scope of the following claims.
[Brief description of the drawings]
FIG. 1 is a block diagram of a web page.
FIG. 2 is a block diagram of a network including a satellite server.
FIG. 3 is a block diagram of the satellite server of FIG. 2;
FIG. 4 is a diagram showing a flow of a distributed dynamic web page caching procedure on the computer network of FIG. 2;
[Explanation of symbols]
12 Web page templates 14, 16, 18, 20 Components 42, 44, 46, 48 ISP
50 Internet 52 server 54 Client 56 Browser 58, 60 Satellite server 82, 84 Content server 94, 96, 98, 100 Cache 86, 88 Web server 90, 92 Plug-in

Claims (13)

A computer-implemented method for generating a dynamic web page, comprising:
Receiving a web page request from a client;
Checking whether the page template and page component tag of the web page are in a local cache memory;
Downloading the page template and the page component tag of the web page from the server to the local cache memory if the page template and the page component tag are not in the local cache memory in response to the confirmation;
Assembling a web page from a page template and a page component tag in the local cache memory;
Providing the client with the web page. A method for executing a computer for generating a dynamic web page, the method comprising: The computer device of claim 1, further comprising passing a cookie from the server to a local cache memory with a client session identifier (ID) to manage the session. the method of. The method of claim 1, wherein the page component tag comprises page location information, parameters for passing from the server to the page template, and expiration information. . The method of claim 3, wherein the page component tag comprises a binary large object (blob) component. Receiving a web page request from a client;
Checking whether the page template and page component tag of the web page are in a local cache memory;
Downloading the page template and page component tag of the web page from the server to the local cache memory if the page template and page component tag are not in the local cache memory;
Assembling a web page from a page template and a page component tag in the local cache memory;
Computer program stored on a computer-readable medium having instructions for causing a computer to execute the step of providing the web page to a client. A server having a set of data including a web page;
A server link connecting the server to the Internet,
A dynamic web page caching system connected to the Internet and having a cache memory containing web page component tags, the web page caching system comprising: means for assembling web pages from component tags; Means for distributing a web page. 7. The network according to claim 6, comprising a second dynamic web page caching system. The network according to claim 6, wherein the page component tag includes page position information, a parameter for passing from the server to the page template, and term information. 7. The network according to claim 6, wherein the dynamic web page caching system further comprises means for managing cookies between the iron and the server. A computer-implemented method for generating a dynamic web page, comprising:
Downloading a page template and a page component tag of a dynamic web page from a server to a local cache memory;
Assembling a web page from a page template and page component tags in a local cache memory;
Providing the client with the web page. A method for executing a computer for generating a dynamic web page, the method comprising: The method of claim 10, wherein the local cache memory is in a satellite server. The computer-implemented method of claim 11, wherein the satellite server is located at an end of a network. The computer-implemented method of claim 10, wherein the page component tag comprises page location information, parameters for passing from the server to the page template, time limit information, and a binary large object component. .

Images