CN1291747A - Cache device and its application - Google Patents
Cache device and its application Download PDFInfo
- Publication number
- CN1291747A CN1291747A CN 00127513 CN00127513A CN1291747A CN 1291747 A CN1291747 A CN 1291747A CN 00127513 CN00127513 CN 00127513 CN 00127513 A CN00127513 A CN 00127513A CN 1291747 A CN1291747 A CN 1291747A
- Authority
- CN
- China
- Prior art keywords
- cache device
- request
- server
- client
- browser
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Information Transfer Between Computers (AREA)
Abstract
A cache memory device features that the high-capacity RAM is used as a virtual memory disc and under the control of software, its access priority is higher than that of hard disk. The client access sequence is local memory disc, near-end memory disk and far-end original server. Said extendable plug-and-play structure can speed up network access by 10 times. Its advantages are high safety and reliability, simple installation, convenient use and high cost performance ratio.
Description
The present invention relates to the transmission of internet information, be meant a kind of cache device and using method thereof especially.
Because it is Internet and the welcome degree of in-house network are more and more higher, therefore as if endless to the demand of web access.The Web number of users is more and more, and their patience worse and worse, can't stand so-called WWW (World Wide Wait " global range wait ").In addition, company's infrastructure keeper also perplexs increasing the problems such as the network bandwidth, reliability and performance reduction that increase day by day that cause for Internet frequency of utilization in owing to mechanism.
High-speed cache is not considered in the original design of Internet.Certainly, designer at that time can't expect the huge size of Internet today.Defective in this design has caused serious problems, thereby users endure its hardship to the fullest extent when visiting information on the WWW today.
The object of the present invention is to provide a kind of cache device and using method thereof,, increase work efficiency, make the user that better network service can be provided to quicken the response of internet website.
Design of the present invention is to adopt jumbo random-access memory (ram) and invent ram disk (RAMDISK), it on storage order first ram disk, back hard disk, it on client access request order the local ram disk of elder generation, the near-earth ram disk, far-end original server again, and formed a kind of extendible plug and play, promptly can be the cache device of network acceleration.More particularly, the object of the present invention is achieved like this:
A kind of cache device is characterized in that
(1) this cache device is made of a jumbo random access memory, and invents ram disk;
(2) this cache device is as follows to HTTP processing of request process:
● receive the HTTP request;
● analyze the HTTP request, after receiving enough solicited messages;
● judge at first whether ram disk has the caching record of this request identical content;
● have, then open buffer memory page memory table, and set up a client end response buffer memory;
● read the relevant buffer memory page;
● information is sent to the client port formation, after finishing, is in waiting status
Or
● do not have the caching record of the identical content of asking if judge ram disk, then enter hard drive search and judge whether the caching record of this request identical content;
● have, then open buffer memory page memory table, and set up a client end response buffer memory;
● read the relevant buffer memory page;
● information is sent to the client port formation, after finishing, is in waiting status;
Or
● through judging, reach the caching record of all not having the client-requested identical content in the hard disk in the memory cache, then provide far-end and use domain name;
● establish connections to destination server;
● client data is copied in the port queue of server end;
● in ram disk, set up memory cache, prepare to receive return data;
● receive enough return datas, set up the response buffer of a client port;
● analyze the http response data and to main shared drive, read insertion information;
● cache blocks is made amendment;
● promptly in internal memory, set up be correlated with data cached after all receiving;
● send data to client port;
● send the result, be in waiting status.
This equipment also has the 4th layer of application loading system to layer 7 of network, can make advertisement and content information etc. realize transparent loading.
This equipment also provides fire wall and generic resource locating information (URL) filtering function.
This cache device is as follows as the step of forward proxy server:
(1) browser is from the Web page of an initial server of cache device request;
(2) cache device obtains numeric IP addresses from name server;
(3) cache device obtains the object of request from the primitive network server;
(4) cache device gets off the object storage of receiving and copy is transmitted to browser;
(5) cache device need not to visit the subsequent request that name server or primitive network server can be handled same page.
This cache device is as Transparent Proxy, i.e. forward agency's enhancing mode, and its step is as follows:
(1) browser is from Web page of initial server request, and the 4th layer switch is intercepted and captured midway and judged whether the request into HTTP, if then it is transmitted to cache device;
(2) cache device obtains numeric IP addresses from name server;
(3) cache device primitive network server obtains request object;
(4) cache device gets off the object storage of receiving and copy is transmitted to browser;
(5) cache device need not to visit name server 02 or primitive network server 03 can be handled the same page subsequent request.
This cache device is as reverse proxy, and its step is as follows:
(1) page of a primitive network server of the browse request on the Web as usual, can produce a request that requires the numeric IP addresses of this Web server to name server like this;
(2) name server can not return the IP address of primitive network server, but returns the IP address of cache device;
(3) browser utilizes the IP Address requests web page of cache device;
(4) cache device obtains the Web request object from the primitive network server;
(5) cache device duplicates and returns to browser to this content, if the client needs identical content later on, then can directly obtain from this cache device.
This cache device is used with the 4th layer switch as reverse proxy, and its step is as follows:
(1) browser on the Internet sends request, visit Web server;
(2) the name server server parses goes out the IP address of Web server, and returns to client browser;
(3) client browser sends request by this IP address to the 4th layer switch;
Internet access interface on (4) the 4th layer switchs can be analyzed all bags that enters, if to the HTTP of Web server request, then this request is transmitted to cache device;
(5) cache device sends request to the primitive network server;
(6) the primitive network server returns to cache device with content;
(7) cache device is preserved content in the buffer memory of oneself, and copy is returned to client; If have later the client to need identical content again, then can directly from high-speed cache, obtain.
Many cache device layerings are deployed in the diverse location of network, and its job step is as follows:
(1) the ICP client is accepted a request that is not cached in the Web page on the cache device of browser;
(2) the ICP client sends a formation request to its ICP layer member and ICP upper strata member together;
(3) copy of request object is arranged as layer member, be about to this copy and return to the ICP client;
(4) if ICP responds failure or request timed out with layer member and ICP upper strata member, the ICP client can select an ICP upper strata member to send direct request to object;
(5) this ICP upper strata member obtains request object by its layering or primitive network server;
(6) this ICP upper strata member returns to the ICP client to request object;
(7) the ICP client is duplicated this content and is deposited cache device in and return to browser.
As Web server acceleration group, its job step is as follows with this cache device:
(1) the last browser of Web sends the request to the Web page of primitive network server, with habitually in the past the same, to the IP address of a Web server of name server server requests;
(2) name server returns the IP address in a looping fashion;
(3) the IP Address requests Web page that returns by name server of browser;
(4) as request timed out, browser is filed a request again by another one IP address, thereby high availability is provided.
(5) cache device obtains any object that is not buffered from the primitive network server;
(6) cache device duplicates and returns to browser to this content;
(7) cache device is handled the request of same object, then need not visit the primitive network server;
(8) for the request of same domain name each time, the order of an IP address of name server exchange, thus provide certain load balance by the cache device group.
Adopt this cache device to substitute mirror image server, realize global mirror image, its step is as follows:
(1) the last browser of Web sends the request to the primitive network page, with habitually in the past the same, to the IP address of this long-range Web server of name server request of Internet this locality;
(2) the Internet local domain name server does not return Web server initially, but returns the IP address of the local mirror image website of Internet cache device;
(3) the browser IP Address requests Web page of cache device;
(4), then obtain the Web page from long-range primitive network server as cache device this request content not;
(5) cache device duplicates and returns to browser to this content.
With the working method of many cache devices composition clusters, its job step is as follows:
(1) when clustering functionality was set up permission in the cluster label, cache device was assigned to the member of cluster;
(2) client browser sends forward/Transparent Proxy request;
(3) cluster member is by the mutual announcement of heartbeat inspecting (heart-beat packet) state separately;
(4) a certain member's function breaks down in cluster, and its service of bearing will divide other members that task in the cluster;
(5) when the client has the FTP download request, cache device can allow the client directly to be connected with the webserver and download the load pressure of minimizing cache device server.
Advantage of the present invention:
Cache device of the present invention integrates extendible high-performance cache object memory technology and fault tolerance such as disk arrangement, disk mirroring and high-speed cache cluster etc., thereby the solution that provides can expand to global enterprise and Internet service provider (ISP) from subbranch agency.This company that makes can optimize bandwidth and adapt to new application based on Internet.
Cache device of the present invention can provide impayable extensibility, dirigibility and P/C ratio, can within 10 minutes fast, in based on the enterprise network of Unix, Cisco or NT or ISP network, configure like a cork.In fact, cache device of the present invention is powerful, the more important thing is that it can expand to whole network--from the branch office to ISP.Cache device can provide:
Quicken websites response, improve better network service
Web site contents by intelligent storage and renewal terminal user frequent access, cache device can the faster Website page that transmits Internet and Intranet more efficiently, reduced the load of Web server, thereby improved work efficiency, made the user that better service can be provided.
Significantly reducing WAN bandwidth takies
Cache device has been eliminated Internet network data transmission repetition, unnecessary, has obviously reduced the peak value of flow, can reduce by 50% network bandwidth at most and take.
Security
Cache device not only provides fire wall, also provides generic resource locating information (URL) filtering function to guarantee the not viewed person's visit of website.
Install simple, easy to use
Only need the time less than ten minutes, cache device just can install and apply in any IP network environment, as Unix, and Cosco or ISP network.The browser mode is all adopted in monitoring and management, is very easy to operation.
Buffer memory valued added applications based on the 4th layer of switching architecture
Built-in advertisement pushing and flow monitoring service in this cache device, therefore can in use in the market of transparent caching, help the more effective management of Internet service provider (ISP), control its client, and more effective customer service faster is provided.And cache device can also a plurality of functions such as built-in stock market, ICQ, WEBMAIL make Internet service provider (ISP) provide various value-added services to its user at any time by the cache device of excelling all others in CACHE.
The buffer memory characteristic
Storage HTTP, FTP and Gopher communication data comprise .exe and .java program.Can be configured to user transparent (need not client browser makes an amendment), transmit or the reverse proxy pattern.Support that HTTP1.1 is fixedly connected, tunneling and the cookies of SSL.Support ICP (Internet Caching Protocol), CERN hierachies.Foundation and Harvest, Squid and CERN act on behalf of the journal file of operating such.By forbidding that hostname/IP filters URL or filtering services.
Reliability
Support Load Balancing and Failover Clustering technology.Power supply exhausts the back system and can restart voluntarily.
The invention will be further described below in conjunction with embodiment and accompanying drawing thereof
Fig. 1. the cache device workflow diagram
Fig. 2. cache device is as the equipment disposition and the job step synoptic diagram of acting server work
Fig. 3. cache device is as the equipment disposition and the job step synoptic diagram of Transparent Proxy
Fig. 4. cache device is as the equipment disposition and the job step synoptic diagram of reverse proxy
Fig. 5. equipment disposition that cache device and the 4th layer switch are used and job step synoptic diagram
Fig. 6. many cache device layerings are deployed in the job step synoptic diagram of the diverse location of network
Fig. 7. many cache devices are used as the equipment disposition and the job step synoptic diagram thereof of Web server acceleration group
Fig. 8. cache device is made the scheme synoptic diagram of global mirror image
Fig. 9. cache device is made cluster operational version synoptic diagram
Among the figure:
The 01-high-speed buffer processor
The 02-name server
03-primitive network server
The 04-browser
The 05-gateway
06-the 4th layer switch
Cache device of the present invention is to adopt jumbo random-access memory (ram) and invent ram disk (RAMDISK) and combine with software, make it first ram disk on storage order, back hard disk, it on the order of client access request the local ram disk of elder generation, the near-earth ram disk, far-end original server again, as a whole, be a kind of extendible plug and play, promptly can be network acceleration buffer memory equipment.
Fig. 1 is the workflow diagram that cache device of the present invention is in the client access request.It is to the effect that:
● receive the HTTP request;
● analyze the HTTP request, after receiving enough solicited messages;
● judge at first whether ram disk has the caching record of this request identical content;
● have, then open buffer memory page memory table, and set up a client end response buffer memory;
● read the relevant buffer memory page;
● information is sent to the client port formation, after finishing, is back to the idle thread search list.Judge that perhaps ram disk does not have the caching record of the identical content of asking, then enter hard drive search and judge whether the caching record of this request identical content;
● have, then open buffer memory page memory table, and set up a client end response buffer memory;
● read the relevant buffer memory page;
● information is sent to the guest room port queue, after finishing, turns back to the idle thread search list or, all do not have the caching record of client requests identical content in ram disk and the hard disk, then provide far-end and use domain name through judging;
● establish connections to destination server;
● client data is copied in the port queue of server end;
● in ram disk, set up memory cache, prepare to accept return data;
● receive enough return datas, set up the response buffer of a client;
● analyze the http response data;
● to shared drive, read insertion information;
● cache blocks is made amendment;
● promptly in ram disk, set up be correlated with data cached after all receiving;
● send data to client port;
● send normal termination.
Cache device of the present invention can be deployed in the optional position of network, and every equipment can be served certain user, working group or a geographic area.Use which kind of configuration (and this cache device is mutually integrated with customer rs site) to depend on required cache types.
The use of cache device and configuration have six kinds:
Solution one: forward agency
Solution two: reverse proxy
Solution three: layering is disposed
Solution four: Web server acceleration group
Solution five: global mirror image
Solution six: cluster
Solution one: forward agency
The forward agency promptly quickens the speed that surfs the web of client browser, mainly is applicable to units such as enterprise, ISP, school, government organs.The forward agency can shorten client's access time greatly, reduces taking of bandwidth, saves the network link expense.
Forward agency's advantage is:
● reduce the network operation expense of enterprise effectively
--along with network traffics reduce, saved the Internet spending of charging by flow greatly.
● can filter accessed content
--according to the needs of work and study, the website of permission or disable access is set.
● it is congested to reduce network link
--the processing that meets with a response in LAN (Local Area Network) of the request of access of Internet, reduce taking of Internet bandwidth.
● reduce network traffics 50%
--according to the repeatability of data access, Cache on average has 50% hit rate, makes the data traffic for outer net reduce 50%.
Forward is acted on behalf of scheme one: usual way
Forward agency's usual way is the simplest a kind of mode of quickening client browser.Require its browser of all users to be set to the cache device of excelling all others is used as acting server in this manner.
The configuration of its cache device and job step are as shown in Figure 2.
Its job step is:
1. browser is from the Web page of an initial server of cache device 01 request.
2. cache device 01 obtains numeric IP addresses from name server 02.
3. cache device 01 obtains the object of request from primitive network server 03.
4. cache device 01 gets off the object storage of receiving and copy is transmitted to browser 04.
5. cache device 01 need not to visit the subsequent request that name server 02 or primitive network server 03 can be handled same page.
Forward is acted on behalf of scheme two: Transparent Proxy (as shown in Figure 3)
Transparent Proxy is forward agency's an enhancing mode, also belongs to the category that quickens client browser.It is forward agency's optimization, and the difference of acting on behalf of with forward is and need not does setting by client browser.
Its job step is:
1. browser 04 is from Web page of primitive network server 03 request.The request into HTTP is intercepted and captured and judged whether to the 4th layer switch 06 midway.If then it is transmitted to cache device 01.
2. cache device 01 obtains numeric IP addresses from name server 02.
3. cache device 01 obtains request object from primitive network server 03.
4. cache device 01 gets off the object storage of receiving and copy is transmitted to browser 04.
5. cache device 01 need not to visit the subsequent request that name server 02 or primitive network server 03 can be handled same page.
Solution two: reverse proxy
The response speed of Web server end is promptly quickened in so-called reverse proxy, mainly be applicable to ICP, be engaged in electronic transaction and ecommerce company, have the enterprise customer of Web server etc.This agent way can reduce the load of Web server end greatly, is that user such as ICP reduces the Web server load, improves the preferred option of performance.
The advantage of reverse proxy:
● increase the performance and the scalability of Web server
--in Web server front-end processing request of access, alleviate the serious day by day burden of server comprehensively.
● increase security
--replace server process request response, prevent that effectively Web server is subjected to assault.
● strengthen reliability
--reduce server because the machine situation of swinging that overload causes provides the response of 24x7x365, and has the automated disaster recovery function.
● be easy to management
--plug-In-Forget, need not professional's supervision and management.
● reduce the hardware cost of Web server
--realize same function with a Cache equipment replacement number Web server, significantly reduce hardware cost.
Reverse proxy scheme one: usual way
Relatively be fit to medium and small ICP.This mode can be quickened the response speed of the Web server of ICP greatly, solves with the website to grow up the server load severe overweight that ever-increasing click volume caused, the problem that the user can't in time login.
Its configuration and job step as shown in Figure 4, its step comprises:
1.Web on the page of a primitive network server 03 of browser 04 request.As usual, can produce a request that requires this Web server IP address to name server 02 like this.
2. name server 02 can not return the numeric IP addresses of primitive network server 03, but returns the IP address of cache device 01.
3. browser 04 utilizes the IP Address requests Web page of cache device 01.
4. cache device 01 obtains the Web request object from primitive network server 03.
5. cache device 01 duplicates and returns to browser 04 to this content.If have later the client to need identical content again, then can directly from this cache device 01, obtain.
Reverse proxy scheme two: enhancing mode (being used) with four layer switchs
Be fit to relatively large ICP.Can reduce the load of one group of Web server of website visiting amount maximum greatly, reduce the client awaits time.By Cache is set, cooperate with four layer switchs, can realize the load balancing of many cache devices.
Its configuration and job step as shown in Figure 5, its step comprises:
1.Internet on browser 04 send request, visit primitive network server 03.
2. name server 02 server parses goes out the IP address of primitive network server 03, and returns to client browser 04.
3. client browser 04 sends request by this IP address to the 4th layer switch 06.
4. the Internet access interface on the 4th layer switch 06 can be analyzed all bags that enters, if to the HTTP of primitive network server 03 request, then this request is transmitted to cache device 01.
5. cache device 01 sends request to primitive network server 03.
6. primitive network server 03 returns to cache device 01 with content.
7. cache device 01 is preserved content in the buffer memory of oneself, and copy is returned to client.If have later the client to need identical content again, then can directly from high-speed cache, obtain.
Solution three: layering is disposed
By many cache device layerings being deployed in the diverse location of network, for cache device is set up on-chip cache, thereby improve response speed, optimize network environment comprehensively.
The advantage that layering is disposed:
● accelerate response speed
--Web server needn't be directly arrived in more Web request, can obtain response in local (or in nearer relatively distance), has improved response speed.
● reduce the Internet flowing of access
--reduce the Internet flowing of access, thereby make full use of the Internet bandwidth.
The scheme that layering is disposed as shown in Figure 6, it uses step as follows:
1.ICP client is accepted a request that is not cached in the Web page on the cache device of browser.
2.ICP client sends a formation request to its ICP layer member and ICP upper strata member together.
3. the copy that request object is arranged as layer member is about to this copy and returns to the ICP client.
4. if ICP responds failure or request timed out with layer member and ICP upper strata member, the ICP client selects an ICP upper strata member to send direct request to object again.
5.ICP the upper strata member obtains request object by its layering or primitive network server 03.
6.ICP the upper strata member returns to the ICP client to request object.
7.ICP browser is duplicated and returned to client to this content.
Solution four: WEB server acceleration group
By being that a Web server disposes one group of accelerator, fault-tolerant defencive function is provided effectively, and makes Web server possess more performance.
The advantage of Web server acceleration group:
● load balancing is provided, increases system performance and handling capacity
--utilize the Round Robin function of name server 02, will balanced each member who is assigned in the acceleration group of service, thereby the system performance of making and handling capacity be improved significantly.
● reduce the Internet flowing of access
--reduce the Internet flowing of access, thereby make full use of the Internet bandwidth.
The scheme of Web server acceleration group as shown in Figure 7, it uses step as follows:
1.Web last browser 04 sends the request to the Web page of primitive network server 03.With habitually in the past the same, to the IP address of a primitive network server 03 of name server 02 request.
2. name server 02 returns the IP address in a looping fashion.
3. the IP Address requests Web page that returns by name server 02 of browser 04.
4. as request timed out, browser 04 is filed a request again by another one IP address, thereby high availability is provided.
5. cache device 01 obtains any object that is not buffered from primitive network server 03.
6. cache device 01 duplicates and returns to browser 04 to this content.
7. cache device 01 is handled the request of same object, and need not visit primitive network server 03.
8. for the request of same domain name each time, name server 02 exchanges the order of an IP address, thereby provides certain load balance for 01 group by cache device.
Solution five: global mirror image
For improving the response speed of Internet in this locality, long-range Web website tends to set up mirror image server in this locality.Now adopt Web Cache to substitute this mirror image server, realize global mirror image.
The advantage of whole world mirror image
● improve the response speed of long-range Web website in this locality
--reduce the remote data transmission, make request on nearest server, obtain response.
● reduce the hardware cost of local mirror image Web website
--substitute the mirror image website with cache device, reduce mirror image server group's hardware investment cost.
● do not need to consider the data synchronization problems of traditional mirror image website
--according to requirements for access, only valid data are done renewal, need not consider the renewal transmission of whole website total data.
● reduce the network operation cost
--reduce the flow of network data, saved the network bandwidth.
● be easy to management, strengthen reliability, security
--the administration interface of hommization is simple and easy to use.
● obtain better service quality
--improve response speed, optimize service quality, for you obtain more users.
The whole world mirror image scheme as shown in Figure 8, its job step is as follows:
1.Web last browser 04 sends the request to the Web page of primitive network server 03.With habitually in the past the same, to the IP address of Internet local domain name server 02 this long-range primitive network server 03 of request.
2.Internet local domain name server 02 does not return the initial address of primitive network server 03, but returns the IP address of the local mirror image website of Internet cache device 01.
3. the IP Address requests Web page of browser 04 usefulness cache device 01.
4. as cache device 01 this request content not, then obtain the Web page from long-range primitive network server 03.
5. cache device 01 duplicates and returns to browser 04 to this content.
Solution six: cluster
By many cache devices being formed the working method of clusters, and a plurality of service assignment to cluster, the fault-tolerance of enhanced system, the reliability and the availability of raising network.The advantage of cluster:
● intelligent
--the service meeting that distributes in the cluster is regulated automatically, thus the task of realization mean allocation.
● fault-tolerance
--the service of distributing to cluster can provide fault-tolerant protection automatically.Wherein a cache device was originally distributed to its service and will be redistributed to remaining cache device because of any reason cisco unity malfunction.
The scheme of cluster as shown in Figure 9, its principle of work process is:
1. when clustering functionality was set up permission in the cluster label, cache device 01 was assigned to the member of cluster.Just setting as single cache device 01 of forward, transparent and reverse proxy.
2. client browser 04 sends forward/Transparent Proxy request.
3. cluster member is by the mutual communication of heartbeat inspecting (heart-beat packet) state separately.
4. a certain member's function breaks down in cluster, and its service of bearing will divide other member who tasks in the cluster.
5. when the client had the FTP download request, cache device 01 can make the client directly be connected with primitive network server 03 and download, and reduces the load pressure of cache device server 01.
Claims (11)
1. a kind of cache device is characterized in that
(1) this cache device is made of a jumbo random access memory, and invents ram disk;
(2) this cache device is as follows to HTTP processing of request process:
● receive the HTTP request;
● analyze the HTTP request, after receiving enough solicited messages;
● judge at first whether ram disk has the caching record of this request identical content;
● have, then open buffer memory page memory table, and set up a client end response buffer memory;
● read the relevant buffer memory page;
● information is sent to the client port formation, after finishing, is in waiting status
Or
● do not have the caching record of the identical content of asking if judge ram disk, then enter hard drive search and judge whether the caching record of this request identical content;
● have, then open buffer memory page memory table, and set up a client end response buffer memory;
● read the relevant buffer memory page;
● information is sent to the client port formation, after finishing, is in waiting status;
Or
● through judging, reach the caching record of all not having the client-requested identical content in the hard disk in the memory cache, then provide far-end and use domain name;
● establish connections to destination server;
● client data is copied in the port queue of server end;
● in ram disk, set up memory cache, prepare to receive return data;
● receive enough return datas, set up the response buffer of a client port;
● analyze the http response data and to main shared drive, read insertion information;
● cache blocks is made amendment;
● promptly in internal memory, set up be correlated with data cached after all receiving;
● send data to client port;
● send the result, be in waiting status.
2. according to the said cache device of claim 1, it is characterized in that this equipment also has the 4th layer of application loading system to layer 7 of network, can make advertisement and content information etc. realize transparent loading.
3. according to claim 1 or 2 said cache devices, it is characterized in that this equipment also provides set fire wall and generic resource locating information (URL) filtering function.
4. according to the using method of the said cache device of claim 1, it is characterized in that as the step of forward proxy server as follows:
(1) browser is from the Web page of an initial server of cache device request;
(2) cache device obtains numeric IP addresses from name server;
(3) cache device obtains the object of request from the primitive network server;
(4) cache device gets off the object storage of receiving and copy is transmitted to browser;
(5) cache device need not to visit the subsequent request that name server or primitive network server can be handled same page.
5. according to the using method of the said cache device of claim 1, it is characterized in that as Transparent Proxy, i.e. forward agency's enhancing mode, its step is as follows:
(1) browser is from Web page of initial server request, and the 4th layer switch is intercepted and captured midway and judged whether the request into HTTP, if then it is transmitted to cache device;
(2) cache device obtains numeric IP addresses from name server;
(3) cache device primitive network server obtains request object;
(4) cache device gets off the object storage of receiving and copy is transmitted to browser;
(5) cache device need not to visit name server or the primitive network server can be handled the same page subsequent request.
6. according to the using method of the said cache device of claim 1, it is characterized in that its step is as follows as reverse proxy:
(1) page of a primitive network server of the browse request on the Web as usual, can produce a request that requires the numeric IP addresses of this Web server to name server like this;
(2) name server can not return the IP address of primitive network server, but returns the IP address of cache device;
(3) browser utilizes the IP Address requests web page of cache device;
(4) cache device obtains the Web request object from the primitive network server;
(5) cache device duplicates and returns to browser to this content, if the client needs identical content later on, then can directly obtain from this cache device.
7. according to claim 1, the using method of said cache device is characterized in that as reverse proxy, is used with the 4th layer switch, and its step is as follows:
(1) browser on the Internet sends request, visit Web server;
(2) name server parses the IP address of Web server, and returns to client browser;
(3) client browser sends request by this IP address to the 4th layer switch;
Internet access interface on (4) four layer switchs can be analyzed all bags that enters, if to the HTTP of Web server request, then this request is transmitted to cache device;
(5) cache device sends request to primitive network server 03;
(6) primitive network server 03 returns to cache device with content;
(7) cache device is preserved content in the buffer memory of oneself, and copy is returned to client;
(8) if there is later the client to need identical content again, then can directly from high-speed cache, obtain.
8. according to the using method of the said cache device of claim 1, it is characterized in that many cache device layerings are deployed in the diverse location of network, its job step is as follows:
(1) the ICP client is accepted a request that is not cached in the Web page on the cache device of browser;
(2) the ICP client sends a formation request to its ICP layer member and ICP upper strata member together;
(3) copy of request object is arranged as layer member, be about to this copy and return to the ICP client;
(4) if ICP responds failure or request timed out with layer member and ICP upper strata member, the ICP client can select an ICP upper strata member to send direct request to object;
(5) this ICP upper strata member obtains request object by its layering or primitive network server;
(6) this ICP upper strata member returns to the ICP client to request object;
(7) the ICP client is duplicated this content and is deposited cache device in and return to browser.
9. according to the using method of the said cache device of claim 1, it is characterized in that this cache device is used as Web server acceleration group, its job step is as follows:
(1) the last browser of Web sends the request to the Web page of primitive network server, with habitually in the past the same, to the IP address of a Web server of name server request;
(2) name server returns the IP address in a looping fashion;
(3) the IP Address requests Web page that returns by name server of browser;
(4) as request timed out, browser is filed a request again by another one IP address, thereby high availability is provided.
(5) cache device obtains any object that is not buffered from the primitive network server;
(6) cache device duplicates and returns to browser to this content;
(7) cache device is handled the request of same object, then need not visit the primitive network server;
(8) for the request of same domain name each time, the order of an IP address of name server exchange, thus provide certain load balance by the cache device group.
10. the using method of cache device according to claim 1 is characterized in that adopting this cache device to substitute mirror image server, realizes global mirror image, and its step is as follows:
(1) the last browser of Web sends the request to the primitive network page, with habitually in the past the same, to Internet
(2) the IP address of Ben Di this long-range Web server of name server request;
(3) the Internet local domain name server does not return Web server initially, but returns the IP address of the local mirror image website of Internet cache device;
(4) the browser IP Address requests Web page of cache device;
(5), then obtain the Web page from long-range primitive network server as cache device this request content not;
(6) cache device duplicates and returns to browser to this content.
11. the using method of cache device according to claim 1 is characterized in that its job step is as follows with the working method of many cache devices composition clusters:
(1) when clustering functionality was set up permission in the cluster label, cache device was assigned to the member of cluster;
(2) client browser sends forward/Transparent Proxy request;
(3) cluster member is by the mutual announcement of heartbeat inspecting (heart-beat packet) state separately;
(4) a certain member's function breaks down in cluster, and its service of bearing will divide other members that task in the cluster;
(5) when the client has the FTP download request, cache device can allow the client directly to be connected with the webserver and download the load pressure of minimizing cache device server.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00127513 CN1291747A (en) | 2000-11-24 | 2000-11-24 | Cache device and its application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00127513 CN1291747A (en) | 2000-11-24 | 2000-11-24 | Cache device and its application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1291747A true CN1291747A (en) | 2001-04-18 |
Family
ID=4592526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00127513 Pending CN1291747A (en) | 2000-11-24 | 2000-11-24 | Cache device and its application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1291747A (en) |
Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1293738C (en) * | 2002-06-28 | 2007-01-03 | 华为技术有限公司 | Method for improving data processing capability of remote user dialing authentication protocol |
| CN1308840C (en) * | 2004-02-13 | 2007-04-04 | 联想(北京)有限公司 | Method for acquisition of data in hard disk |
| CN1315061C (en) * | 2002-03-27 | 2007-05-09 | 先进微装置公司 | Method and apparatus for improved security in a data processor |
| CN1316375C (en) * | 2001-08-03 | 2007-05-16 | 诺基亚有限公司 | Method, system and terminal for data network having distributed cache-memory |
| CN100367246C (en) * | 2002-01-15 | 2008-02-06 | 先进微装置公司 | Method and apparatus for multi-table accessing of input/output devices using target security |
| CN100395750C (en) * | 2005-12-30 | 2008-06-18 | 华为技术有限公司 | Buffer store management method |
| CN100446504C (en) * | 2005-05-23 | 2008-12-24 | 华为技术有限公司 | Shared storage convertion device and method for line frame protocol data under broadband CDMA system |
| CN101652760A (en) * | 2007-12-10 | 2010-02-17 | 松下电器产业株式会社 | Common cache control device, common cache control method, and integrated circuit |
| CN1531303B (en) * | 2003-03-12 | 2010-05-12 | 微软公司 | Caching system and method at user terminal without protocol concerned |
| CN1972488B (en) * | 2005-08-11 | 2010-05-19 | 捷讯研究有限公司 | System and method for obscuring hand-held device data traffic information |
| CN101964810A (en) * | 2010-08-25 | 2011-02-02 | 北京神州泰岳软件股份有限公司 | Real-time information synchronization method based on browser |
| CN102063274A (en) * | 2010-12-30 | 2011-05-18 | 成都市华为赛门铁克科技有限公司 | Storage array, storage system and data access method |
| CN101699421B (en) * | 2009-10-28 | 2012-01-04 | 华为终端有限公司 | Method and server for sharing serial port |
| CN101431525B (en) * | 2007-11-06 | 2012-08-29 | 北京傲游天下科技有限公司 | Acceleration method and system for network content loading, its server and terminal |
| CN103064932A (en) * | 2012-12-24 | 2013-04-24 | 乐视网信息技术（北京）股份有限公司 | System and method for processing static page |
| CN103188323A (en) * | 2011-12-31 | 2013-07-03 | 中国移动通信集团公司 | System and method for providing Web services based on user mainframe cache equipment |
| CN103218252A (en) * | 2013-04-23 | 2013-07-24 | 深圳市京华科讯科技有限公司 | First-level system acceleration method based on virtualization |
| US8719490B2 (en) | 2010-12-30 | 2014-05-06 | Huawei Technologies Co., Ltd. | Storage array, storage system, and data access method |
| WO2015010279A1 (en) * | 2013-07-24 | 2015-01-29 | Halliburton Energy Services, Inc. | Automated information logging and viewing system for hydrocarbon recovery operations |
| CN104935636A (en) * | 2015-04-29 | 2015-09-23 | 广州杰赛科技股份有限公司 | Network channel acceleration method and system |
| CN104995897A (en) * | 2013-11-21 | 2015-10-21 | 阿尔卡特朗讯公司 | Method, system and devices for content caching and delivering in IP networks |
| WO2015172391A1 (en) * | 2014-05-16 | 2015-11-19 | 华为技术有限公司 | Fast data read/write method and apparatus |
| CN105359485A (en) * | 2013-06-28 | 2016-02-24 | 汤姆逊许可公司 | Method for retrieving, by a client terminal, a content part of a multimedia content |
| CN105554082A (en) * | 2015-12-10 | 2016-05-04 | 天津海量信息技术有限公司 | Open-type operation platform framework structure and operation method |
| CN106326148A (en) * | 2015-07-01 | 2017-01-11 | 三星电子株式会社 | Data processing system and operation method therefor |
| CN106372109A (en) * | 2016-08-19 | 2017-02-01 | 中国银联股份有限公司 | Internet resource file caching method and apparatus |
| CN109344011A (en) * | 2018-10-22 | 2019-02-15 | 郑州云海信息技术有限公司 | A kind of data back up method and device |
-
2000
- 2000-11-24 CN CN 00127513 patent/CN1291747A/en active Pending
Cited By (38)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1316375C (en) * | 2001-08-03 | 2007-05-16 | 诺基亚有限公司 | Method, system and terminal for data network having distributed cache-memory |
| CN100367246C (en) * | 2002-01-15 | 2008-02-06 | 先进微装置公司 | Method and apparatus for multi-table accessing of input/output devices using target security |
| CN1315061C (en) * | 2002-03-27 | 2007-05-09 | 先进微装置公司 | Method and apparatus for improved security in a data processor |
| CN1293738C (en) * | 2002-06-28 | 2007-01-03 | 华为技术有限公司 | Method for improving data processing capability of remote user dialing authentication protocol |
| CN1531303B (en) * | 2003-03-12 | 2010-05-12 | 微软公司 | Caching system and method at user terminal without protocol concerned |
| CN1308840C (en) * | 2004-02-13 | 2007-04-04 | 联想(北京)有限公司 | Method for acquisition of data in hard disk |
| CN100446504C (en) * | 2005-05-23 | 2008-12-24 | 华为技术有限公司 | Shared storage convertion device and method for line frame protocol data under broadband CDMA system |
| CN1972488B (en) * | 2005-08-11 | 2010-05-19 | 捷讯研究有限公司 | System and method for obscuring hand-held device data traffic information |
| CN100395750C (en) * | 2005-12-30 | 2008-06-18 | 华为技术有限公司 | Buffer store management method |
| CN101431525B (en) * | 2007-11-06 | 2012-08-29 | 北京傲游天下科技有限公司 | Acceleration method and system for network content loading, its server and terminal |
| CN101652760A (en) * | 2007-12-10 | 2010-02-17 | 松下电器产业株式会社 | Common cache control device, common cache control method, and integrated circuit |
| CN101652760B (en) * | 2007-12-10 | 2012-12-26 | 松下电器产业株式会社 | Common cache control device, common cache control method, and integrated circuit |
| CN101699421B (en) * | 2009-10-28 | 2012-01-04 | 华为终端有限公司 | Method and server for sharing serial port |
| CN101964810A (en) * | 2010-08-25 | 2011-02-02 | 北京神州泰岳软件股份有限公司 | Real-time information synchronization method based on browser |
| CN102063274B (en) * | 2010-12-30 | 2013-10-09 | 华为技术有限公司 | Storage array, storage system and data access method |
| CN102063274A (en) * | 2010-12-30 | 2011-05-18 | 成都市华为赛门铁克科技有限公司 | Storage array, storage system and data access method |
| US8719490B2 (en) | 2010-12-30 | 2014-05-06 | Huawei Technologies Co., Ltd. | Storage array, storage system, and data access method |
| US9098404B2 (en) | 2010-12-30 | 2015-08-04 | Huawei Technologies Co., Ltd. | Storage array, storage system, and data access method |
| CN103188323A (en) * | 2011-12-31 | 2013-07-03 | 中国移动通信集团公司 | System and method for providing Web services based on user mainframe cache equipment |
| CN103188323B (en) * | 2011-12-31 | 2016-09-07 | 中国移动通信集团公司 | The system and method for Web service is provided based on subscriber's main station buffer memory device |
| CN103064932A (en) * | 2012-12-24 | 2013-04-24 | 乐视网信息技术（北京）股份有限公司 | System and method for processing static page |
| CN103218252A (en) * | 2013-04-23 | 2013-07-24 | 深圳市京华科讯科技有限公司 | First-level system acceleration method based on virtualization |
| CN105359485A (en) * | 2013-06-28 | 2016-02-24 | 汤姆逊许可公司 | Method for retrieving, by a client terminal, a content part of a multimedia content |
| GB2529120A (en) * | 2013-07-24 | 2016-02-10 | Halliburton Energy Services Inc | Automated information logging and viewing system for hydrocarbon recovery operations |
| GB2529120B (en) * | 2013-07-24 | 2020-12-02 | Halliburton Energy Services Inc | Automated information logging and viewing system for hydrocarbon recovery operations |
| WO2015010279A1 (en) * | 2013-07-24 | 2015-01-29 | Halliburton Energy Services, Inc. | Automated information logging and viewing system for hydrocarbon recovery operations |
| US10397318B2 (en) | 2013-07-24 | 2019-08-27 | Halliburton Energy Services, Inc. | Automated information logging and viewing system for hydrocarbon recovery operations |
| CN104995897A (en) * | 2013-11-21 | 2015-10-21 | 阿尔卡特朗讯公司 | Method, system and devices for content caching and delivering in IP networks |
| CN105393236B (en) * | 2014-05-16 | 2018-06-26 | 华为技术有限公司 | Requiring rapid data read/writing method and apparatus |
| CN105393236A (en) * | 2014-05-16 | 2016-03-09 | 华为技术有限公司 | Fast data read/write method and apparatus |
| WO2015172391A1 (en) * | 2014-05-16 | 2015-11-19 | 华为技术有限公司 | Fast data read/write method and apparatus |
| CN104935636A (en) * | 2015-04-29 | 2015-09-23 | 广州杰赛科技股份有限公司 | Network channel acceleration method and system |
| CN106326148A (en) * | 2015-07-01 | 2017-01-11 | 三星电子株式会社 | Data processing system and operation method therefor |
| CN106326148B (en) * | 2015-07-01 | 2020-06-23 | 三星电子株式会社 | Data processing system and method of operation thereof |
| CN105554082A (en) * | 2015-12-10 | 2016-05-04 | 天津海量信息技术有限公司 | Open-type operation platform framework structure and operation method |
| CN106372109A (en) * | 2016-08-19 | 2017-02-01 | 中国银联股份有限公司 | Internet resource file caching method and apparatus |
| CN109344011A (en) * | 2018-10-22 | 2019-02-15 | 郑州云海信息技术有限公司 | A kind of data back up method and device |
| CN109344011B (en) * | 2018-10-22 | 2022-03-08 | 郑州云海信息技术有限公司 | Data backup method and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1291747A (en) | Cache device and its application | |
| CN1206837C (en) | Method and system of implementing IP data transmission on multi-service-unit according to defined strategy | |
| CN1435043A (en) | Method and device for call center operation | |
| CN1263302C (en) | Remote meeting system, supporting method of same, and computer program | |
| CN1450765A (en) | Servo load balance system, apparatus and content management apparatus | |
| CN1679004A (en) | Cache device, cache data management method, and computer program | |
| CN1711784A (en) | System and method for sending SMS and text messages | |
| CN1269337C (en) | Content adaptive service control system | |
| CN1222902C (en) | Method and apparatus in a communication network | |
| CN1633131A (en) | A method for implementing iSCSI memory system | |
| CN1859393A (en) | System and method of consulting device information | |
| CN1794729A (en) | Data arrangement management method, data arrangement management system, data arrangement management device, and data arrangement management program | |
| CN1112637C (en) | Information acquisition proxy system and information transfer managing system | |
| CN1905530A (en) | Method and system of multicast and video-on-demand | |
| CN1928861A (en) | Immediate communication client machine for project share and method thereof | |
| CN1192098A (en) | Distributed network computing system and information exchanging device and method for said system | |
| CN1729442A (en) | Method and arrangement for use of shared resources in a network | |
| CN1816053A (en) | Flow-media direct-broadcasting P2P network method based on conversation initialization protocol | |
| CN1539250A (en) | Device control apparatus and device control system | |
| CN1947106A (en) | Notification method, connection apparatus, communication method, and program | |
| CN1777107A (en) | On-demand instantiation in a high-performance computing (HPC) system | |
| CN1608257A (en) | Aggregate system resource analysis including correlation matrix and metric-based analysis | |
| CN1111795C (en) | Information distribution system using network | |
| CN1870532A (en) | Signalling tracking method and system | |
| CN1801727A (en) | Network service information processing system and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: LI NANMENG TO: YIQUN INFORMATION TECHNOLOGY (SHANGHAI) CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 200070, 547 West Tianmu Road, Shanghai, 27 floor Applicant after: Yi Qun information technology (Shanghai) Co. Ltd. Address before: 200233 room 57, No. 402, Lilac Garden, Pu Bei Road, Xuhui District, Shanghai Applicant before: Li Nanmeng |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |