CN101465768B - Method and system for implementing website disaster-tolerating and error-tolerating operation - Google Patents
Method and system for implementing website disaster-tolerating and error-tolerating operation Download PDFInfo
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- CN101465768B CN101465768B CN2009100451768A CN200910045176A CN101465768B CN 101465768 B CN101465768 B CN 101465768B CN 2009100451768 A CN2009100451768 A CN 2009100451768A CN 200910045176 A CN200910045176 A CN 200910045176A CN 101465768 B CN101465768 B CN 101465768B
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Abstract
The invention discloses a method and a device for realizing disaster and fault tolerance operation of a website, which have the capability of tolerating disasters and faults at real time during the operation of the website. The invention adopts the technical proposal that the system comprises target websites, a disaster tolerance backup center used to store and operate the emergency backup websites of the target websites, and a monitoring and dispatching centre which operates independently, identifies the faults and errors of the target websites and sends dispatching orders when faults occur or the faults are recovered. A DNS management center realizes the switching between the target websites and the emergency backup websites, realizes the user analysis requirements to the domain names according to the IP addresses of the emergency backup websites in the domain name selections when receiving the dispatching orders to switch to the emergency backup websites, and realizes the user analysis requirements to the domain names according to the IP addresses of the target websites in the domain name selections when receiving the dispatching orders to switch to the target websites. The method and the device are applicable for network service.
Description
Technical field
The present invention relates to the technology of web portal security operation, relate in particular to a kind of method and system of realizing website disaster-tolerating and error-tolerating operation.
Background technology
The operation of a website, owing to need numerous operator's links, software and hardware facilities, various communications protocol, technology and personnel's support, so the factor that breaks down is just varied, but for the website of some key sectors, has authority owing to release news, seriousness, uniqueness and do not allow basic demands such as distorting property, simultaneously, the continuous availability of these websites also is the focus that various circles of society pay close attention to, for these vital websites, how to accomplish at disaster tolerance, operation continuously for a long time under the fault-tolerant prerequisite, be emergency guarantee, just become current numerous website thorny problem that runs in service.Main unfavorable technical factor wherein is:
1) mode of operation of domain name system (Domain Name System calls DNS in the following text) is asynchronous, multi-level buffer, redirected and distribution mechanisms, and this has just determined a website to have very long delay when switching the foreign work server of different IP.
2) the website fault is in form, reason with influence aspect such as region and have suitable complexity and diversity, and this has just determined only to use some simple method of testings (as test link break-make ping, understand apparatus of load etc.) can not judge as data mistake, content and challenge such as has been distorted.
To sum up factor as can be known, the website will be realized can be dynamically, the strange land, sustainable operation under the disaster-tolerating and error-tolerating state, the technical scheme that needs to merge multinomial different system can steadily realize this demand.
Summary of the invention
The objective of the invention is to address the above problem, a kind of system that realizes website disaster-tolerating and error-tolerating operation is provided, fault and mistake during the website is managed have the ability of real-time fault tolerance disaster tolerance.
Another object of the present invention is to provide a kind of method that realizes website disaster-tolerating and error-tolerating operation.
Technical scheme of the present invention is: the present invention has disclosed a kind of system that realizes website disaster-tolerating and error-tolerating operation, comprising:
At least one uses the targeted website of disaster-tolerant backup service;
The disaster-tolerant backup center comprises backup server and storage device, and this storage device is used to store the emergent backup website of those targeted websites, and this backup server is used to move emergent backup website;
Monitoring and control centre, the mistake and the fault of independent operating and recognition objective website are when breaking down or sending dispatch command during fault recovery;
DNS administrative center, comprise one group of dns server, realize the switching of targeted website and emergent backup website, when the dispatch command that breaks down that receives this monitoring and control centre is met an urgent need the backup website to switch to, choose the IP address of emergent backup website according to domain name, by this emergent user's analysis request that backs up IP address realization of website to this domain name, at the dispatch command of the trouble shooting that receives this monitoring and control centre when switching to the targeted website, choose the IP address of targeted website according to domain name, realize user's analysis request this domain name by the IP address of this targeted website.
The system of above-mentioned realization website disaster-tolerating and error-tolerating operation, wherein, this disaster-tolerant backup center has automated back-up and data synchronization mechanism, Backup Data is from the targeted website, and this data synchronization mechanism comprises: delimit the virtual server service area and use the virtual network secure tunnel to come the data of all dynamic websites synchronously; Or directly by the access destination website and download and be stored as static Web page.
The system of above-mentioned realization website disaster-tolerating and error-tolerating operation, wherein, the life span value that this dns server uses is in 600 seconds.
The system of above-mentioned realization website disaster-tolerating and error-tolerating operation, wherein, this monitoring and control centre are identifying to break down in the targeted website or the fault of targeted website when having removed, the current state of outside notification target website when sending dispatch command.
The system of above-mentioned realization website disaster-tolerating and error-tolerating operation, wherein, the legacy data that a time window has been enabled at interval at this disaster-tolerant backup center provides emergency service.
The present invention has also disclosed a kind of method that realizes website disaster-tolerating and error-tolerating operation, comprising:
Monitoring and real-time monitoring objective website, control centre, when finding that mistake or fault appear in the targeted website, call out DNS administrative center and disaster-tolerant backup center, the IP address of the emergent backup website of being stored at the disaster-tolerant backup center is enabled as the current new record of separating by DNS administrative center, the disaster-tolerant backup center is provided with and checks data, and the domain name of user's request should emergently back up the website by the IP address visit of this backup website of meeting an urgent need;
Monitoring and real-time monitoring objective website, control centre, when the mistake of finding the targeted website or trouble shooting and the continuous service duration exceeds a preset value, begin to call out DNS administrative center and disaster-tolerant backup center, the IP address of original targeted website is enabled as the current new record of separating by DNS administrative center, the domain name of user's request is by the access destination website, IP address of this original targeted website, and the data sync and the back-up job of emergent backup website recovered at the disaster-tolerant backup center.
The method of above-mentioned realization website disaster-tolerating and error-tolerating operation, wherein, the data sync at this disaster-tolerant backup center comprises: delimit the virtual server service area and use the virtual network secure tunnel to come the data of all dynamic websites synchronously; Or directly by the access destination website and download and be stored as static Web page.
The method of above-mentioned realization website disaster-tolerating and error-tolerating operation, wherein, user access request is used the caching record in the local dns caching server earlier, and the life span value that this this dns caching server uses is in 600 seconds.
The method of above-mentioned realization website disaster-tolerating and error-tolerating operation, wherein, this monitoring and control centre are identifying to break down in the targeted website or the fault of targeted website when having removed, the current state of outside notification target website when sending dispatch command.
The method of above-mentioned realization website disaster-tolerating and error-tolerating operation, wherein, the legacy data that a time window has been enabled at interval at this disaster-tolerant backup center provides emergency service.
The present invention contrasts prior art following beneficial effect: the present invention is by in the running of website, (human failure in power failure, network failure, hardware facility fault, software program fault, the website maintenance, website high capacity operation and system crash, website suffer that assault, webpage are illegally distorted, natural calamity etc.) can in time switch and enable the standby server group and continue continuous service externally is provided when all kinds of fault occurring, thereby makes (or one a group) website can keep operation continuously and the least possible show fault and mistake to the visitor.The present invention has been merged technology such as website using monitoring, content distributing network (CDN) and disaster-tolerant backup and has been formed a cover comprehensive technological scheme and an implementation method, and this programme preferably resolves the important department website that is arranged in wide area network to fault-tolerant, disaster tolerance and the emergency guarantee demand that proposes of operation continuously.
Description of drawings
Fig. 1 is the general introduction figure of preferred embodiment of the system of realization website disaster-tolerating and error-tolerating operation of the present invention.
Fig. 2 is the schematic diagram that the method for realization website disaster-tolerating and error-tolerating operation of the present invention switches to the emergency mode.
Fig. 3 is the schematic diagram that the method for realization website disaster-tolerating and error-tolerating operation of the present invention switches to normal operation mode.
Fig. 4 is the data flow diagram under a kind of state of the present invention.
Fig. 5 is the data flow diagram under the another kind of state of the present invention.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 shows the preferred embodiment of the system of realization website disaster-tolerating and error-tolerating operation of the present invention.Please participate in Fig. 1, the system of present embodiment comprises monitoring and control centre 1, DNS administrative center 2, disaster-tolerant backup center 3 and targeted website 4.Wherein targeted website 4 can have a plurality of, for example targeted website a, targeted website b etc., except need being in the DNS record CNAME record or the trustship DNS, the targeted website need not to make the change of any soft, hardware setting and management and operation again.
Disaster-tolerant backup center 3 comprises one group of backup server 30 (for example illustrated backup server a, backup server b) and storage device 31.Storage device 31 is used to store the emergent backup website of targeted website correspondence, for example the emergent backup website a of targeted website a correspondence.Backup server 30 is used to move emergent backup website.Abundant redundant ability arrangement need be carried out in disaster-tolerant backup center 3 in the design of throughputs such as access bandwidth, soft hardware performance.Disaster-tolerant backup center 3 has automated back-up and data synchronization mechanism, files by the good backup of the web page contents in synchronous or the asynchronous system automatic mirror-image website, data and foundation.How to depend on synchronously that the user determines, spendable method as: delimit virtual server (VPS) service area also use virtual network (VPN) secure tunnel to come synchronously all data (normally are used for dynamic website, the height consistency of assurance and data), or directly also download and storage webpage (normally being used for static page is main website) by the access destination website.Disaster-tolerant backup center 3 has the feature of one-to-many, can manage and deposit the mirror image of a plurality of targeted websites concentratedly.
Monitoring and control centre 1 are independent the settings and operation, judge various websites mistake and the credibility by various means authentication errors judgements by various means.Monitoring and control centre 1 use any complicated algorithm and mechanism to improve the accuracy of pinpointing the problems.These website mistakes comprise: link check, connect time-out check, rejection connection, 4XX and 5KX system mistake inspection and content false (be held as a hostage, distort, artificial careless mistake or I/O error in data cause) or the like.The control centre passes through the realization of distributed work, abundant redundancy and verification scheme, thereby guarantees that monitoring and control centre obtain advantages of higher stability and reliability supports.
DNS administrative center 2 comprises the dns server of one group of redundant foreign work each other, the 2 main switchings that realize targeted website 4 and emergent backup website of DNS administrative center.Because DNS has used multi-level buffer, has been redirected and distribution mechanisms, so realize that a website switches to another group server by one group of server service is provided, need long time just can finish refreshing of caching record, the length of this refresh time depends on that the duration of the TTL record defined of corresponding field name record in the dns server of source adds an appropriate amount time-delay, and this roughly is a website required total time of switch operating machine IP address.In order to accelerate the switching time of website, under the prerequisite of handling pressure and load-balancing performance well, in the dns server short life span (Time To Live, i.e. TTL) strategy is carried out in the management of domain name, ttl value shortened in 600 seconds.When monitoring and control centre 1 when monitoring certain targeted website (master server) mistake,, make DNS begin externally to resolve certain domain name with using dispatch command to notify the api interface of dns server.Dns server is chosen the IP address of emergent backup website of this domain name correspondence of this machine of being deposited at according to dispatch command, after this to user's analysis request of this domain name the time, provide the IP address of this emergent backup website of newly choosing to return to the user.That is to say, use the workspace server address of the IP address of the emergent backup website in the disaster-tolerant backup center 3 this moment as this domain name.Meanwhile, the handover mechanism state that also discover fault and started with various communication modes notice website responsible persons concerned monitoring and control centre 1 is so that timely maintaining web and solution fault.By disaster-tolerant backup center 3 when the user pushes webpage, the data at disaster-tolerant backup center 3 with from duplicating the data of targeted website master server, keep a reasonable time window and avoid " backuping to mistake ".
The original master server in monitoring objective website that monitoring and control centre 1 still continue, when find that fault has been disengaged and stable operation after set time value, monitoring and control centre's 1 use dispatch command are notified the api interface of dns server.Dns server is chosen the IP address of the original master server in targeted website according to dispatch command, and promptly the website gains master server by emergent backup server and continues to provide service, and informs the website responsible person concerned simultaneously.
The method that Fig. 2 shows realization website disaster-tolerating and error-tolerating operation of the present invention switches to the emergency mode.Please participate in Fig. 2, the important webpage of monitoring and real-time monitoring objective website, control centre is called out DNS administrative center and disaster-tolerant backup center (step S20) when finding that mistake or fault appear in the targeted website.Then, DNS administrative center begins to enable the IP address of the emergent backup website of being stored at the disaster-tolerant backup center as the new new record of separating, and the disaster-tolerant backup center begins to be provided with and to check data, prepares to receive user capture on the horizon (step S22).Then, the visitor brings into use the emergent backup of the visit website (step S24), IP address at disaster-tolerant backup center.
The method that Fig. 3 shows realization website disaster-tolerating and error-tolerating operation of the present invention switches to normal operation mode.Please participate in Fig. 3, the important webpage of monitoring and real-time monitoring objective website, control centre, when the mistake of finding the targeted website or fault has been disengaged and the continuous service duration surpass a preset value, just begin to call out DNS administrative center and disaster-tolerant backup center (step S30).The master server IP address that DNS administrative center begins to enable the targeted website is the new new record of separating, and the website data that the disaster-tolerant backup center begins restore cycle property synchronously and back-up job (step S32).The visitor brings into use the access destination website, master server IP address (step S34) of targeted website.
Fig. 4 has described data flow and the sequential relationship between Intelligent Dynamic dns server, monitoring and control centre, main web site (diagram is the website of example with abc.gov) and the disaster recovery center mirror site (illustrating with abc.gov is the disaster tolerance mirror image of example) at user access request, local dns server, master record place.
When a user initiates to ask certain website (for example illustrated abc.gov website), user browser inquiry local dns server, if the caching record in the local dns server is effective, then directly return the mapping IP address of main web site (or emergent backup website), the user obtains corresponding contents and service from the server of this IP address afterwards.
When a user initiates to ask certain website, when running into the record expired (the TTL life span is expired) in the local dns server buffer memory, local dns server finally arrives at the Intelligent Dynamic dns server of having deposited corresponding domain name by the root name server guiding, begin to inquire about the mapping IP address of this domain name, the Intelligent Dynamic dns server returns the IP of emergent backup website (or master server website) to sending the local dns server of inquiry according to dispatch state at that time, local dns server is when refreshing domain name record and beginning TTL countdown, transmitting IP writes down to the user, thereby realize asking to visit certain domain name website, the overall process of corresponding contents and service is provided to the server that obtains corresponding IP address from a user.
When the targeted website master server was in the even running state, according to the monitoring and the scheduling of control centre, the disaster-tolerant backup center was regularly from the master server reading of data and establish mirror image.When running into dispatch notification and will enable the disaster-tolerant backup center service immediately, the disaster-tolerant backup center will be abandoned current just in backed up data, and the legacy data of having enabled at interval a time window provides service to the user, will prevent like this disaster-tolerant backup center backup to " mistake or distort after webpage ".
Fig. 5 is Fig. 4 another sub-states arranged side by side.The user does not wish that complete trustship dns resolution service is in the Intelligent Dynamic dns server.The user only need be CNAME and described and get final product in its Intelligent Dynamic dns server this moment, and user's query requests can be redirected to the Intelligent Dynamic dns server at this moment, thereby finally realizes and reach the purpose and the effect of Fig. 4 unanimity.
The foregoing description provides to those of ordinary skills and realizes or use of the present invention; those of ordinary skills can be under the situation that does not break away from invention thought of the present invention; the foregoing description is made various modifications or variation; thereby protection scope of the present invention do not limit by the foregoing description, and should be the maximum magnitude that meets the inventive features that claims mention.
Claims (6)
1. system that realizes website disaster-tolerating and error-tolerating operation comprises:
At least one uses the targeted website of disaster-tolerant backup service;
The disaster-tolerant backup center, comprise backup server and storage device, this storage device is used to store the emergent backup website of those targeted website correspondences, this backup server is used to move emergent backup website, this disaster-tolerant backup center has automated back-up and data synchronization mechanism, Backup Data is from the targeted website, and this data synchronization mechanism comprises: delimit the virtual server service area and use the virtual network secure tunnel to come the data of all dynamic websites synchronously; Or directly by the access destination website and download and be stored as static Web page, wherein this disaster-tolerant backup center legacy data of having enabled at interval a time window provides emergency service;
Monitoring and control centre, the mistake and the fault of independent operating and recognition objective website are when breaking down or sending dispatch command during fault recovery;
DNS administrative center, comprise one group of dns server, realize the switching of targeted website and emergent backup website, when the dispatch command that breaks down that receives this monitoring and control centre is met an urgent need the backup website to switch to, choose the IP address of emergent backup website according to domain name, by this emergent user's analysis request that backs up IP address realization of website to this domain name, at the dispatch command of the trouble shooting that receives this monitoring and control centre when switching to the targeted website, choose the IP address of targeted website according to domain name, realize user's analysis request this domain name by the IP address of this targeted website.
2. the system of realization website disaster-tolerating and error-tolerating operation according to claim 1 is characterized in that, the life span value that this dns server uses is in 600 seconds.
3. the system of realization website disaster-tolerating and error-tolerating operation according to claim 1, it is characterized in that, this monitoring and control centre are identifying to break down in the targeted website or the fault of targeted website when having removed, the current state of outside notification target website when sending dispatch command.
4. method that realizes website disaster-tolerating and error-tolerating operation comprises:
Monitoring and real-time monitoring objective website, control centre, when finding that mistake or fault appear in the targeted website, call out DNS administrative center and disaster-tolerant backup center, the IP address of the emergent backup website of being stored at the disaster-tolerant backup center is enabled as the current new record of separating by DNS administrative center, the disaster-tolerant backup center is provided with and checks data, and user access request should emergently back up the website according to the IP address visit of the backup website of should meeting an urgent need that the domain name of user's request is shone upon;
Monitoring and real-time monitoring objective website, control centre, the mistake of finding the targeted website or trouble shooting and the continuous service duration exceed a preset value, begin to call out DNS administrative center and disaster-tolerant backup center, the IP address of original targeted website is enabled as the current new record of separating by DNS administrative center, the access destination website, IP address of this original targeted website that the domain name that user access request is asked according to the user is shone upon, the data sync and the back-up job of emergent backup website recovered at the disaster-tolerant backup center, and wherein the data sync at this disaster-tolerant backup center comprises: delimit the virtual server service area and use the virtual network secure tunnel to come the data of all dynamic websites synchronously; Or directly by the access destination website and download and be stored as static Web page, and the legacy data that a time window has been enabled at interval at this disaster-tolerant backup center provides emergency service.
5. the method for realization website disaster-tolerating and error-tolerating operation according to claim 4 is characterized in that, user access request is used the caching record in the local dns caching server earlier, and the life span value that this local dns caching server uses is in 600 seconds.
6. the method for realization website disaster-tolerating and error-tolerating operation according to claim 4, it is characterized in that, this monitoring and control centre are identifying to break down in the targeted website or the fault of targeted website when having removed, the current state of outside notification target website when sending dispatch command.
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| CN2009100451768A CN101465768B (en) | 2009-01-12 | 2009-01-12 | Method and system for implementing website disaster-tolerating and error-tolerating operation |
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| CN2009100451768A CN101465768B (en) | 2009-01-12 | 2009-01-12 | Method and system for implementing website disaster-tolerating and error-tolerating operation |
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| CN101465768B true CN101465768B (en) | 2011-11-02 |
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| CN107995107A (en) * | 2018-01-05 | 2018-05-04 | 中国矿业大学(北京) | One kind combats a natural disaster to become campus network DNS systems and its combats a natural disaster change method |
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| CN112804098B (en) * | 2021-01-06 | 2023-04-07 | 北京小米松果电子有限公司 | Domain name fault line switching method and device, terminal equipment and storage medium |
| CN114363155A (en) * | 2022-01-05 | 2022-04-15 | 北京爱学习博乐教育科技有限公司 | Backup recovery method and system for CDN resources |
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2009
- 2009-01-12 CN CN2009100451768A patent/CN101465768B/en not_active Expired - Fee Related
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