CN103152367A - Cache dynamic maintenance updating method and system - Google Patents
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- CN103152367A CN103152367A CN 201110401387 CN201110401387A CN103152367A CN 103152367 A CN103152367 A CN 103152367A CN 201110401387 CN201110401387 CN 201110401387 CN 201110401387 A CN201110401387 A CN 201110401387A CN 103152367 A CN103152367 A CN 103152367A
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Abstract
The invention discloses a cache dynamic maintenance updating system and a method. The system comprises a client, a cache server and a remote server, wherein the client includes a browser, a cache unit and a cache management module, the cache management module is used for checking the cached records in the cache unit, and sending the cache recorded information to the cache server, and updating the content of the cache unit after receiving the notice from the cache server; the cache server is used for receiving the cache recorded information, requesting for validation to the remote server according to the cache recorded information, recording the cache state returned from the remote server, and noticing the cache management module when the cache state changes. Whether the cache records are expired and updated is checked through the cache server, and the purposes that timeliness and accuracy of the maintained or deleted cache are ensured and the smallest cache of the local client Web is ensured are achieved.
Description
Technical field
The present invention relates to a kind of update method and system of buffer memory, particularly relate to a kind of Dynamic Maintenance update method and system of buffer memory.
Background technology
Browser is a display web page server or archives economy file and can allows user and above-mentioned file carry out interactive a kind of software, browser is used for being presented at the information such as word, image and other information in World Wide Web (WWW) or local area network (LAN), and the information such as above-mentioned word, image and other information can be the hyperlink that connects other network address, browse easily various information thereby make the user to reach rapidly.Wherein webpage is generally HTML (Hyper Text Mark-up Language, hypertext language) form, on user terminal, common browser comprises Internet Explorer, Firefox etc., can find out, browser is the client-side program of commonly using.
Current, the browser of main flow generally has local cache mechanism.When visiting the static file of having accessed by local cache, can accelerate surfing, and improve the user and use sensation.concrete, local cache mechanism is that browser loads in order to accelerate, the speed of browsing page, the resource of browsing is comprised html file, Javascript (Java descriptive language) file, css (Cascading Style Sheets, CSS) content of file comprises that corresponding url and relevant outdated information are kept at local disk, it is also local Web buffer memory, when a new url (Uniform Resoure Locator uniform resource locator is obtained in browser preparation next time, ) during resource request, tend to check that whether local Web buffer memory see this url buffer memory, and determine that according to expiration period information this local resource is whether expired or send If-Modified-Since header cause http-server and decide local cache whether expired, if local resource does not have expired, browser need not be again from the server end Gains resources, and only need read local resource from local Web buffer memory, thereby improved the multiplexing of resource, saved the use of bandwidth, accelerated the corresponding speed of page browsing.
Yet, when the user uses browser for a long time, the local Web buffer memory of accumulation will become huge, and some content may lose efficacy but still may take up room, simultaneously in case local Web buffer memory becomes huge, whether the time of buffer memory can be elongated also often to cause checking this url when browser is each to be prepared to obtain new url resource, causes extending the time that the new url resource of request spends.
For this problem, one of solution that the current main-stream browser generally adopts is to provide option the buffer memory maximum memory space manually to be set or not to limit memory space for the user by browser, arrange check the buffer update rule for each when loading the page or when starting browser or at random or never at every turn, so that the operation of the buffer memory in the clearance by hand designated duration to be provided.
Yet, but there is following shortcoming in above-mentioned solution: 1, only according to the buffer memory maximum memory space that arranges or do not limit memory space to decide reservation and the deletion of a caching record, may cause the mistake deletion of buffer memory and keep, delete strictly speaking and keep and be not very accurate, because each buffer memory has the term of validity characteristics of himself; 2, go to check by local machine whether buffer memory needs to upgrade, and has also often wasted cpu resource and the Internet resources of local machine.
In addition, off-line buffer memory buffer memory and the use under off-line state in advance that current caching mechanism generally all can provide the off-line caching mechanism to provide to guarantee appointed website by browser, though yet this off-line buffer memory can reach the effect of buffer memory in advance, often completed by the website but initiate the off-line buffer memory, and can only off-line and this website have the Internet resources of homology attribute.
In sum, there be mistake deletion and the reservation that may cause buffer memory in the caching mechanism of prior art and waste the cpu resource of local machine and the problem that Internet resources, off-line buffer memory are restricted as can be known, therefore be necessary to propose improved technological means in fact, solve this problem.
Summary of the invention
The deficiency that exists for overcoming above-mentioned prior art; one of the present invention purpose is to provide a kind of Dynamic Maintenance update method and system of buffer memory; it checks that by caching server caching record is whether expired and have or not renewal; reached and guaranteed that buffer memory keeps or the ageing and accuracy of deletion, and guaranteed as far as possible the purpose of local client Web buffer memory minimum.
Another object of the present invention is to provide a kind of Dynamic Maintenance update method and system of buffer memory, its can be dynamically under the condition that the user allows all url resources of buffer memory in advance, and can only buffer memory unlike the off-line buffer memory the url resource of corresponding website.
For reaching above-mentioned and other purpose, the invention provides a kind of Dynamic Maintenance update system of buffer memory, comprising:
Client, comprise browser, buffer unit and caching management module, this caching management module is used for checking the caching record of this buffer unit, caching record information is sent to caching server, and upgrade the content of this buffer unit when receiving the notice of caching server;
Caching server receives this caching record information, to a remote server requests verification, and records the buffer status that this remote server returns according to this caching record information, notifies this caching management module when buffer status changes; And
Remote server is used for receiving the checking request of this caching server, and verifies, returns to this buffer status.
Further, this caching server comprises remote cache service module and buffer status record cell, this remote cache service module is used for receiving the caching record that this caching management module sends, send the checking request according to this caching record to this remote server, and the buffer status that this remote server returns is recorded in this buffer status record cell, when changing, state notify this caching management module to upgrade the content of this buffer unit; This buffer status record cell is used for recording the buffer status that this remote server returns.
Further, whether this checking request is expired for the checking caching record.
Further, this browser all url resources of buffer memory in advance in this buffer unit.
Further, this remote server is long-range Web server.
For reaching above-mentioned and other purpose, the invention provides a kind of Dynamic Maintenance update method of buffer memory, comprise the steps:
The caching management module of client is made regular check on the information of buffer unit, and obtains the caching record information that this buffer unit returns;
This caching management module sends to caching server with this caching record information;
This caching server sends the checking request according to caching record to remote server;
This remote server return cache recording status;
This caching server judges whether this caching record state changes, as changes, and notifies this caching management module; And
This caching management module dynamically updates this buffer unit according to notice.
Further, the method browser step of all url resources of buffer memory in advance in this buffer unit of also comprising client.
Further, should be in this buffer unit in advance the step of all url resources of buffer memory comprise:
This browser is according to sending resource request with definition rule or the pre-cache request of the page to this remote server;
This remote server returns to web page resources to this browser;
This browser deposits the web page resources of looking ahead in this buffer unit; And
This browser reads the web page resources of looking ahead and carries out the layout demonstration from this buffer unit.
Further, whether this checking request is expired for the checking caching record.
Further, this remote server is long-range Web server.
Compared with prior art, the Dynamic Maintenance update system of a kind of buffer memory of the present invention and method are by being carried out the validity of Web buffer memory and the inspection of renewal by the caching server unification, local client is deleted or upgrades local Web buffer memory according to the check result of caching server, allow simultaneously dynamically all url resources of buffer memory in advance of user, and can fully guarantee its buffer memory validity and accuracy.
Description of drawings
Fig. 1 is the system architecture diagram of the Dynamic Maintenance update system of a kind of buffer memory of the present invention;
Fig. 2 is the system architecture diagram of preferred embodiment of the Dynamic Maintenance update system of a kind of buffer memory of the present invention;
Fig. 3 is the flow chart of steps of the Dynamic Maintenance update method of a kind of buffer memory of the present invention.
Embodiment
Below by specific instantiation and accompanying drawings embodiments of the present invention, those skilled in the art can understand other advantage of the present invention and effect easily by content disclosed in the present specification.The present invention also can be implemented or be used by other different instantiation, and the every details in this specification also can be based on different viewpoints and application, carries out various modifications and change under spirit of the present invention not deviating from.
Because whether a cache resources is effectively determined by its publisher, at certain particular point in time, all local caches all had uniqueness, therefore by unified definite its validity of a caching server, can reduce access and local cpu resource and local network request resource to publisher's server, this is also the principle that the present invention is based on.
Fig. 1 is the system architecture diagram of the Dynamic Maintenance update system of a kind of buffer memory of the present invention.As shown in Figure 1, the Dynamic Maintenance update system of a kind of buffer memory of the present invention, comprise client 10, caching server 20 and remote server 30, wherein remote server 30 is used for providing the network linking service, serve as Web http, in preferred embodiment of the present invention, 30 of remote servers are long-range Web server 30, and client 10 comprises a browser 110, buffer unit 111 and caching management module 112.
System module in client 10 below first is described.Wherein, browser 110 is a kind of can the request and the loaded web page resource, and web page resources is carried out the program that layout shows, browser 110 can be asked the loaded web page resource by initiating http, and can produce buffer unit 111, also direct loaded web page resource from buffer unit 111; Buffer unit 111 is the local memory cell of client 10, and it is that the result that a kind of browser 110 will be accessed remote web server 30 is kept at local page resource set; Caching management module 112 is used for reporting caching record to the remote cache service module 21 of caching server 20, and according to the content of its check result updating maintenance buffer unit 11.
Caching server 20 is used for receiving the caching record that caching management module 112 sends, and whether request remote web server 30 checking caching record are expired, and with the buffer status record that remote web server returns, when changing, buffer status notify caching management module 112 to upgrade corresponding content in buffer units 111.Specifically, caching server 20 comprises remote cache service module 21 and buffer status record cell 22, wherein, remote cache service module 21 is used for receiving the caching record that caching management module 112 is reported, by asking long-range Web server 30 checking caching record whether expired, and the buffer status that long-range Web server 30 is returned is recorded in buffer status record cell 22, and notice caching management module 112 is upgraded the content of buffer units 111 when state changes; Buffer status record cell 22 is used for recording the buffer status that long-range Web server 30 returns.
Fig. 2 is the system architecture diagram of preferred embodiment of the Dynamic Maintenance update system of a kind of buffer memory of the present invention.Below will coordinate Fig. 2 that the course of work of Dynamic Maintenance update system of the present invention's buffer memory is described.Wherein, 1. browser is browser 110,5. the Web buffer memory is buffer unit 111,2. the local cache hypervisor is caching management module 112,3. the remote cache service routine is remote cache service module 21,6. Web buffer status record is buffer status record cell 22, and 4. long-range Web server is remote server 30.The specific works process is as follows:
(1) 4. 1. browser send http web resource request to long-range Web server;
(2) to browser 1. 4. long-range Web server return to the web resource;
(3) 1. browser resolves the Web resource of returning the layout demonstration, and writes the Web buffer memory 5.;
(4) 1. browser reads the web resource from the Web buffer memory 5. and carries out layout and show;
(5) 2. the local cache hypervisor makes regular check on 5. information of Web buffer memory;
(6) 5. the return cache state information is to the local cache hypervisor 2. for the Web buffer memory;
(7) to the remote cache service routine 3. 2. the local cache hypervisor report caching record information;
(8) 6. 3. the remote cache service routine deposit caching record information in Web buffer status record;
(9) 6. 3. the remote cache service routine record information according to the Web buffer status and 4. send the checking request to long-range Web server;
(10) 4. the return cache recording status is to the remote cache service routine 3. for long-range Web server;
(11) 6. 3. the remote cache service routine be saved in the caching record state Web buffer status record, changes as the caching record state and notify the local cache hypervisor 2.;
(12) 5. 2. the local cache hypervisor dynamically update the Web buffer memory according to notice.
The course of work of Web buffer memory is initiated in advance for client 10 in wherein (1)-(4), that is, 4. 1. browser send http web resource request according to user's predefine rule or the pre-cache request of the Web page to long-range Web server; To browser 1. 4. long-range Web server return to the web resource; The Web resource of looking ahead that 1. browser will return is carried out local cache, writes the Web buffer memory 5.; Browser reads to look ahead the web resource and carry out layout from 5. Web buffer memory and shows.
By said process, the present invention can be dynamically all url resources of buffer memory in advance, and can only buffer memory unlike the off-line buffer memory the url resource of corresponding website.
Fig. 3 is the flow chart of steps of the Dynamic Maintenance update method of a kind of buffer memory of the present invention.As shown in Figure 3, the Dynamic Maintenance update method of a kind of buffer memory of the present invention comprises the steps:
In sum, compare with existing caching mechanism, the present invention has the following advantages.:
1, unification of the present invention checks that by caching server caching record is whether expired and whether renewal arranged; need not send request to determine whether expired and to have or not renewal to long-range Web server by each local client machine; the local client machine is only determined its validity according to the check result of caching server and then is determined to keep or deletion or renewal; can guarantee that buffer memory keeps or the ageing and accuracy of deletion, and guarantee that as far as possible local client Web buffer memory is minimum.
2, the present invention can be dynamically under the condition that the user allows all url resources of buffer memory in advance, and can only buffer memory unlike the off-line buffer memory the url resource of corresponding website;
3, can guarantee that in conjunction with advantage 1 the Web resource of buffer memory has clear and definite ageing and accuracy in advance.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not is used for restriction the present invention.Any those skilled in the art all can under spirit of the present invention and category, modify and change above-described embodiment.Therefore, the scope of the present invention should be as listed in claims.
Claims (10)
1. the Dynamic Maintenance update system of a buffer memory comprises:
Client, comprise browser, buffer unit and caching management module, this caching management module is used for checking the caching record of this buffer unit, caching record information is sent to caching server, and upgrade the content of this buffer unit when receiving the notice of caching server;
Caching server receives this caching record information, to a remote server requests verification, and records the buffer status that this remote server returns according to this caching record information, notifies this caching management module when buffer status changes; And
Remote server is used for receiving the checking request of this caching server, and verifies, returns to this buffer status.
2. the Dynamic Maintenance update system of buffer memory as claimed in claim 1, it is characterized in that: this caching server comprises remote cache service module and buffer status record cell, this remote cache service module is used for receiving the caching record that this caching management module sends, send the checking request according to this caching record to this remote server, and the buffer status that this remote server returns is recorded in this buffer status record cell, when changing, state notify this caching management module to upgrade the content of this buffer unit; This buffer status record cell is used for recording the buffer status that this remote server returns.
3. the Dynamic Maintenance update system of buffer memory as claimed in claim 2 is characterized in that: whether this checking request is expired for the checking caching record.
4. the Dynamic Maintenance update system of buffer memory as claimed in claim 1 is characterized in that: this browser all url resources of buffer memory in advance in this buffer unit.
5. the Dynamic Maintenance update system of buffer memory as claimed in claim 4, it is characterized in that: this remote server is long-range Web server.
6. the Dynamic Maintenance update method of a buffer memory, comprise the steps:
The caching management module of client is made regular check on the information of buffer unit, and obtains the caching record information that this buffer unit returns;
This caching management module sends to caching server with this caching record information;
This caching server sends the checking request according to caching record to remote server;
This remote server return cache recording status;
This caching server judges whether this caching record state changes, as changes, and notifies this caching management module; And
This caching management module dynamically updates this buffer unit according to notice.
7. the Dynamic Maintenance update method of a kind of buffer memory as claimed in claim 6 is characterized in that: the browser that the method also comprises client step of all url resources of buffer memory in advance in this buffer unit.
8. the Dynamic Maintenance update method of a kind of buffer memory as claimed in claim 7, is characterized in that, should be in this buffer unit in advance the step of all url resources of buffer memory comprise:
This browser is according to sending resource request with definition rule or the pre-cache request of the page to this remote server;
This remote server returns to web page resources to this browser;
This browser deposits the web page resources of looking ahead in this buffer unit; And
This browser reads the web page resources of looking ahead and carries out the layout demonstration from this buffer unit.
9. the Dynamic Maintenance update method of a kind of buffer memory as claimed in claim 6 is characterized in that: whether this checking request is expired for the checking caching record.
10. the Dynamic Maintenance update method of a kind of buffer memory as claimed in claim 6, it is characterized in that: this remote server is long-range Web server.
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| CN 201110401387 CN103152367A (en) | 2011-12-06 | 2011-12-06 | Cache dynamic maintenance updating method and system |
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| CN 201110401387 CN103152367A (en) | 2011-12-06 | 2011-12-06 | Cache dynamic maintenance updating method and system |
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| CN104753966A (en) * | 2013-12-25 | 2015-07-01 | 明博教育科技有限公司 | Resource file inquiry method and system based on server and client caches |
| CN104778172A (en) * | 2014-01-10 | 2015-07-15 | 腾讯科技（深圳）有限公司 | Prefetching processing method and device of web information, and corresponding web browsing device |
| CN104933054A (en) * | 2014-03-18 | 2015-09-23 | 上海帝联信息科技股份有限公司 | Uniform resource locator (URL) storage method and device of cache resource file, and cache server |
| CN105245560A (en) * | 2014-07-11 | 2016-01-13 | 阿里巴巴集团控股有限公司 | Method, device and system for realizing distributed cache |
| CN105279034A (en) * | 2015-10-26 | 2016-01-27 | 北京皮尔布莱尼软件有限公司 | Consistency cache control system and method |
| CN105447037A (en) * | 2014-08-29 | 2016-03-30 | 优视科技有限公司 | Caching clearing method and device |
| CN105630823A (en) * | 2014-11-04 | 2016-06-01 | 阿里巴巴集团控股有限公司 | Method, device and system for monitoring cache data based on distributed system |
| WO2016173441A1 (en) * | 2015-04-27 | 2016-11-03 | 中兴通讯股份有限公司 | Server cache processing method, apparatus and system |
| CN106250558A (en) * | 2016-08-16 | 2016-12-21 | 天脉聚源(北京)传媒科技有限公司 | A kind of live method for refreshing and device |
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| CN107483604A (en) * | 2017-08-29 | 2017-12-15 | 武汉斗鱼网络科技有限公司 | The method and apparatus that Nginx RTMP dynamics update DNS cache |
| CN107645516A (en) * | 2016-07-20 | 2018-01-30 | 平安科技（深圳）有限公司 | Application of software data caching method and device |
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| CN104753966A (en) * | 2013-12-25 | 2015-07-01 | 明博教育科技有限公司 | Resource file inquiry method and system based on server and client caches |
| CN104778172A (en) * | 2014-01-10 | 2015-07-15 | 腾讯科技（深圳）有限公司 | Prefetching processing method and device of web information, and corresponding web browsing device |
| CN104778172B (en) * | 2014-01-10 | 2019-04-19 | 腾讯科技（深圳）有限公司 | Webpage information prefetches processing method, device and corresponding web page browsing device |
| CN104933054B (en) * | 2014-03-18 | 2018-07-06 | 上海帝联信息科技股份有限公司 | The URL storage methods and device of cache resource file, cache server |
| CN104933054A (en) * | 2014-03-18 | 2015-09-23 | 上海帝联信息科技股份有限公司 | Uniform resource locator (URL) storage method and device of cache resource file, and cache server |
| CN105245560A (en) * | 2014-07-11 | 2016-01-13 | 阿里巴巴集团控股有限公司 | Method, device and system for realizing distributed cache |
| CN105245560B (en) * | 2014-07-11 | 2019-11-08 | 阿里巴巴集团控股有限公司 | A kind of method, apparatus and system for realizing distributed caching |
| CN105447037A (en) * | 2014-08-29 | 2016-03-30 | 优视科技有限公司 | Caching clearing method and device |
| CN105630823B (en) * | 2014-11-04 | 2019-03-12 | 阿里巴巴集团控股有限公司 | Data cached monitoring method, device and system based on distributed system |
| CN105630823A (en) * | 2014-11-04 | 2016-06-01 | 阿里巴巴集团控股有限公司 | Method, device and system for monitoring cache data based on distributed system |
| CN106161573A (en) * | 2015-04-27 | 2016-11-23 | 中兴通讯股份有限公司 | Server buffer processing method, Apparatus and system |
| WO2016173441A1 (en) * | 2015-04-27 | 2016-11-03 | 中兴通讯股份有限公司 | Server cache processing method, apparatus and system |
| CN106649215A (en) * | 2015-10-23 | 2017-05-10 | 甲骨文国际公司 | Generating style sheets during runtime |
| CN105279034B (en) * | 2015-10-26 | 2018-11-30 | 北京皮尔布莱尼软件有限公司 | Consistency cache control system and method |
| CN105279034A (en) * | 2015-10-26 | 2016-01-27 | 北京皮尔布莱尼软件有限公司 | Consistency cache control system and method |
| CN107645516A (en) * | 2016-07-20 | 2018-01-30 | 平安科技（深圳）有限公司 | Application of software data caching method and device |
| CN106250558A (en) * | 2016-08-16 | 2016-12-21 | 天脉聚源(北京)传媒科技有限公司 | A kind of live method for refreshing and device |
| CN106250558B (en) * | 2016-08-16 | 2019-10-25 | 天脉聚源(北京)传媒科技有限公司 | A kind of live streaming method for refreshing and device |
| CN107483604A (en) * | 2017-08-29 | 2017-12-15 | 武汉斗鱼网络科技有限公司 | The method and apparatus that Nginx RTMP dynamics update DNS cache |
| CN107483604B (en) * | 2017-08-29 | 2020-12-15 | 武汉斗鱼网络科技有限公司 | Method and device for dynamically updating DNS cache by Nginx-RTMP |
| CN112527531A (en) * | 2020-12-22 | 2021-03-19 | 北京明略软件系统有限公司 | Cache processing method and system |
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Application publication date: 20130612 |