CN105472002B - Based on the session synchronization method copied immediately between clustered node - Google Patents
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000012217 deletion Methods 0.000 claims description 4
- 230000037430 deletion Effects 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000000151 deposition Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 235000014510 cooky Nutrition 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/40—Support for services or applications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/14—Session management
- H04L67/146—Markers for unambiguous identification of a particular session, e.g. session cookie or URL-encoding
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
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- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
- Computer And Data Communications (AREA)
Abstract
The invention discloses a kind of based on the session synchronization method copied immediately between clustered node, it will the storage of words identification information in the client, avoids and stores complete session information in the client, the security risk for thus preventing subscriber identity information to expose；Simultaneously, during user end to server sends request, only carry session label information, rather than complete session information, the data volume of transmission will greatly reduce, and improve access efficiency of the client to server, simultaneous session information between each clustered node, session information need not be obtained from database, avoid the performance bottleneck frequently brought using database；Also special session cache server need not be used, reduces and is developed and deployed to this, and have a good application prospect.
Description
Technical field
The present invention relates to distributed structure/architecture technical field body be related to it is a kind of same based on the session copied immediately between clustered node
One step process.
Background technology
In distributed structure/architecture, server-side uses cluster environment, when client accesses server-side, between each clustered node how
Simultaneous session information, scheme more ripe at present have：Session synchronization based on Cookies, the session synchronization based on database, base
In the session synchronization of distributed caching, above-mentioned three kinds of modes, equal Shortcomings are specific as follows,
1, the session synchronization scheme based on Cookies, steps are as follows,（1）When client accesses cluster service for the first time, when
Preceding clustered node be client create session information, it will words information preservation in the memory of this node, and by session information with
The form of Cookies is stored in client；（2）When client accesses cluster service again, current cluster node is according to client
The session information carried in the Cookies of request first checks for whether there is the session information in this node, if it does not,
Then create；If it is present updating the session information of this node according to the session information that client carries；（3）When client is moved back
When going out, current cluster node destroys the session information of this node first, and it is specified to notify other online clustered nodes to destroy
Session information；Client destroys the session information in Cookies simultaneously；（4）The session letter of time-out is cleared up in each clustered node timing
Breath, to discharge the memory source of server.Existing main problem is：Each request of client is required for carrying complete meeting
Information is talked about, if session information is excessive, request can be caused to reach the overlong time of server-side, to influence access efficiency；
Simultaneously as request is required for carrying complete session information every time, exposed user information risk can be increased.
2, the realization principle of the session synchronization scheme based on database is：Session information is stored in database by server-side
In, all clustered nodes all obtain session information from database.Main problem existing for the program is：If visit capacity is excessive
If, frequent operation database be easy to cause performance bottleneck.
3, the realization principle of the session synchronization scheme based on distributed caching is：Session information is stored in distribution by server-side
On formula cache server, all clustered nodes all obtain session information from distributed cache server.It is main existing for the program
Wanting problem is：Since all session informations are all stored on cache server, so must additionally increase in system deployment slow
Server is deposited, while all operations to session must all operate on cache server, this undoubtedly increases system and opens
The difficulty of hair and deployment.
How a kind of session synchronization method is developed, and the session synchronization scheme to solve the problems, such as more ripe at present exists, and is
Current urgent problem.
Invention content
The purpose of the invention is to overcome the existing session synchronization based on Cookies, the session based on database same
The problems of step and the session synchronization based on distributed caching,.The present invention based on the meeting copied immediately between clustered node
Talk about synchronous method, it will the storage of words identification information is not necessarily to store complete session information, safety in the client, in client
It can be high；Client is also improved to the access efficiency of server, avoids the performance bottleneck frequently brought using database；It reduces
It is developed and deployed to this, is had a good application prospect.
To achieve the above object, the technical solution adopted in the present invention is：
It is a kind of based on the session synchronization method copied immediately between clustered node, it is characterised in that：Include the following steps,
Step（A）, when client accesses cluster service for the first time, the clustered node of current service is that client creates one
A session is simultaneously stored in the memory of this clustered node, and by session identification information feedback to visiting client, the client
Session label information is received and preserves, the session label information includes session id and the clustered node IP of current service；
Step（B）, when the client accesses cluster service again, need to carry session label information, current service
Clustered node parses the clustered node IP and session id of the session according to the session label information for receiving client carrying, and
It checks and whether there is the session id in this clustered node, and if it exists, corresponding session information is then obtained according to the session id；It is no
Then, it according to simultaneous session information on the clustered node IP and session id to corresponding clustered node for creating the session, and is stored in
On the clustered node of current service；
Step（C）, when the session information of arbitrary clustered node is changed, this clustered node changes this cluster section first
The session information of point, and the session information that the clustered node update for notifying other online is specified；
Step（D）, when arbitrary clustered node detects that visiting client exits, this clustered node destroys this collection first
The session information of group node, and the clustered node for notifying other online destroys specified session information；
Step（F）, the session information of time-out is cleared up in each clustered node timing, to discharge the memory source of server.
It is above-mentioned based on the session synchronization method copied immediately between clustered node, it is characterised in that：Step（B）, according to wound
Simultaneous session information on the clustered node IP and session id to corresponding clustered node of the session is built, and is stored in current service
On clustered node, the session information is stored in the form of key-value pair in the memory of server.
It is above-mentioned based on the session synchronization method copied immediately between clustered node, it is characterised in that：Step（F）, each cluster
Node timing is cleared up overtime session information and is included the following steps with discharging the memory source of server,
（F1）Each clustered node traverses the session information in this node；
（F2）According to server configuration the session information out-of-service time, update for the last time the session information time and
The time of current server judges whether session information is overtime, if session information is overtime, carries out cleaning deletion.
The beneficial effects of the invention are as follows：The present invention based on the session synchronization method copied immediately between clustered node, solve
It accesses slowly and the problems such as security risk, is also solved based on data present in session holding scheme based on Cookies
The session in library keeps the performance bottleneck of scheme, while also solving and disposing and open in the session holding scheme based on distributed caching
The big problem of degree of raising difficult questions, the present invention store session label information in the client, and it is complete to avoid storage in the client
Session information, the security risk for thus preventing subscriber identity information to expose；Meanwhile sending request in user end to server
In the process, session label information is only carried, rather than complete session information, the data volume of transmission will greatly reduce, and improve
For client to the access efficiency of server, simultaneous session information between each clustered node need not obtain session letter from database
Breath avoids the performance bottleneck frequently brought using database；Also special session cache server need not be used, is reduced
It is developed and deployed to this, and is had a good application prospect.
Description of the drawings
Fig. 1 is the flow chart based on the session synchronization method copied immediately between clustered node of the present invention.
Fig. 2 is the flow chart that the clustered node session of the present invention is deleted.
Fig. 3 is the flow chart of the specific embodiment of the present invention.
Specific implementation mode
Below in conjunction with Figure of description, the present invention is further illustrated.
As shown in Figure 1, the present invention based on the session synchronization method copied immediately between clustered node, include the following steps,
Step（A）, when client accesses cluster service for the first time, the clustered node of current service is that client creates one
A session is simultaneously stored in the memory of this clustered node, and by session identification information feedback to visiting client, the client
Session label information is received and preserves, the session label information includes session id and the clustered node IP of current service；
Step（B）, when the client accesses cluster service again, need to carry session label information, current service
Clustered node parses the clustered node IP and session id of the session according to the session label information for receiving client carrying, and
It checks and whether there is the session id in this clustered node, and if it exists, corresponding session information is then obtained according to the session id；It is no
Then, it according to simultaneous session information on the clustered node IP and session id to corresponding clustered node for creating the session, and is stored in
On the clustered node of current service, the session information is stored in the form of key-value pair in the memory of server；
Step（C）, as shown in Fig. 2, when the session information of arbitrary clustered node is changed, this clustered node is first more
Change the session information of this clustered node, and the session information that the clustered node update for notifying other online is specified；
Step（D）, as shown in Fig. 2, when arbitrary clustered node detects that visiting client exits, this clustered node is first
The clustered node first destroyed the session information of this clustered node, and notify other online destroys specified session information；
Step（F）, the session information of time-out is cleared up in each clustered node timing, to discharge the memory source of server, such as Fig. 2
It is shown, include the following steps,
（F1）Each clustered node traverses the session information in this node；
（F2）According to server configuration the session information out-of-service time, update for the last time the session information time and
The time of current server judges whether session information is overtime, if session information is overtime, carries out cleaning deletion.
As shown in figure 3, one based on the session synchronization method copied immediately between clustered node of the present invention is specific real
Mode is applied,
Step（1）, when client 2 accesses cluster service for the first time, this request is distributed to cluster by load balancing service
On node 2, clustered node 2 will be that client 2 creates session information, and generates session identification（The IP+ sessions of clustered node 2
ID）, it will words ID, session information are stored in memory in the form of key, value pair, and session label information are returned to client
2；
（2）When client 2 accesses cluster service again, this request is distributed on clustered node N by load balancing service
（It can also be other clustered nodes that N, which can be 2,）, the session label information that clustered node N is carried according to client 2 parses
The IP and session id of clustered node 2, and search corresponding session information in memory according to session id, if finding, by session
Information returns；Otherwise, according to obtaining the corresponding session information of session id on the IP of clustered node 2 to clustered node 2, and by the meeting
Talk about ID, session information is stored in memory in the form of key, value pair, while returning to session information；
（3）When some clustered node（Such as clustered node 2）When having updated session information, clustered node 2 notifies that other are online
Clustered node update session information, clustered node 2 obtains all online clustered nodes, and far call clustered node is more
New session interface updates session information according to session id；
（4）When some clustered node（Such as clustered node 2）When detecting that client exits, clustered node 2 deletes the machine
Session information（Directly deleted according to session id from memory）, and the clustered node for notifying other online deletes corresponding meeting
Information is talked about, clustered node 2 obtains all online clustered nodes, and the deletion session interface of far call clustered node, according to
Session id deletes session information；
（5）Invalid session information is cleared up in each clustered node timing, occupied interior to discharge invalid session information
Information is deposited, session information is that in memory, each clustered node traverses the session in this node for storage in the form of key-value pair
Information, and update according to session failed time of server configuration and last time time and the current server of the session
Time judges whether session is overtime, is deleted if session timeout.
In conclusion the present invention based on the session synchronization method copied immediately between clustered node, solve and be based on
The problems such as slow and security risk is accessed present in the session holding scheme of Cookies, also solves the meeting based on database
The performance bottleneck of holding scheme is talked about, while also solving deployment and development difficulty in the session holding scheme based on distributed caching
Big problem, the present invention store session label information in the client, avoid and store complete session letter in the client
Breath, the security risk for thus preventing subscriber identity information to expose；Meanwhile sending the process of request in user end to server
In, session label information is only carried, rather than complete session information, the data volume of transmission will greatly reduce, and improve client
It holds to the access efficiency of server, simultaneous session information between each clustered node need not obtain session information from database, keep away
The frequent performance bottleneck brought using database is exempted from；Also special session cache server need not be used, exploitation is reduced
And lower deployment cost, and have a good application prospect.
The basic principles and main features and advantage of the present invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe the originals of the present invention
Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle
It is fixed.
Claims (1)
1. based on the session synchronization method copied immediately between clustered node, it is characterised in that：Include the following steps,
Step（A）, when client accesses cluster service for the first time, the clustered node of current service is that client creates a meeting
It talks about and is stored in the memory of this clustered node, and by session identification information feedback to visiting client, which receives
And session label information is preserved, the session label information includes session id and the clustered node IP of current service；
Step（B）, when the client accesses cluster service again, need to carry session label information, the cluster of current service
Node parses the clustered node IP and session id of the session according to the session label information for receiving client carrying, and checks
It whether there is the session id in this clustered node, and if it exists, corresponding session information is then obtained according to the session id；Otherwise, root
According to simultaneous session information on the clustered node IP and session id to corresponding clustered node for creating the session, and it is stored in current clothes
On the clustered node of business；
Step（C）, when the session information of arbitrary clustered node is changed, this clustered node changes this clustered node first
Session information, and the session information that the clustered node update for notifying other online is specified；
Step（D）, when arbitrary clustered node detects that visiting client exits, this clustered node destroys this cluster section first
The session information of point, and the clustered node for notifying other online destroys specified session information；
Step（F）, the session information of time-out is cleared up in each clustered node timing, to discharge the memory source of server,
Wherein, step（B）, according to simultaneous session on the clustered node IP and session id to corresponding clustered node for creating the session
Information, and be stored on the clustered node of current service, the session information is stored in the form of key-value pair in server
In depositing；
Step（F）, the session information of time-out is cleared up in each clustered node timing, to discharge the memory source of server, including it is following
Step,
（F1）Each clustered node traverses the session information in this node；
（F2）According to the session information out-of-service time of server configuration, time of the session information and current is updated for the last time
The time of server judges whether session information is overtime, if session information is overtime, carries out cleaning deletion.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510899268.8A CN105472002B (en) | 2015-12-09 | 2015-12-09 | Based on the session synchronization method copied immediately between clustered node |
| PCT/CN2016/099710 WO2017097011A1 (en) | 2015-12-09 | 2016-09-22 | Session synchronization method based on instant copy between cluster nodes |
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| CN201510899268.8A CN105472002B (en) | 2015-12-09 | 2015-12-09 | Based on the session synchronization method copied immediately between clustered node |
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| CN105472002B true CN105472002B (en) | 2018-11-02 |
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Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105472002B (en) * | 2015-12-09 | 2018-11-02 | 国家电网公司 | Based on the session synchronization method copied immediately between clustered node |
| CN107517227B (en) * | 2016-06-15 | 2020-10-13 | 阿里巴巴集团控股有限公司 | Session implementation method and device for distributed consistency system |
| CN106101290B (en) * | 2016-08-25 | 2020-12-11 | Tcl科技集团股份有限公司 | Server cluster management method and system |
| CN109413118B (en) * | 2017-08-15 | 2022-05-10 | 东软集团股份有限公司 | Method, device, storage medium and program product for realizing session synchronization |
| CN108055314A (en) * | 2017-12-08 | 2018-05-18 | 锐捷网络股份有限公司 | The management method and group system of a kind of group system |
| CN109729139A (en) * | 2018-06-15 | 2019-05-07 | 平安普惠企业管理有限公司 | Access request retransmission method, device, equipment and readable storage medium storing program for executing |
| CN110493340B (en) * | 2019-08-21 | 2023-08-04 | 北京小米移动软件有限公司 | Session method and device in distributed system |
| CN111447102B (en) * | 2020-02-27 | 2024-02-13 | 平安科技（深圳）有限公司 | SDN network device access method and device, computer device and storage medium |
| CN111585774B (en) * | 2020-03-24 | 2022-02-01 | 福建天泉教育科技有限公司 | Session updating method and storage medium |
| CN111866170B (en) * | 2020-07-30 | 2023-08-08 | 小视科技(江苏)股份有限公司 | Method for transmitting synchronous message in IOT cluster |
| CN112261013A (en) * | 2020-09-30 | 2021-01-22 | 上海艾融软件股份有限公司 | Session creation method and device, mobile terminal and computer-readable storage medium |
| CN112565425B (en) * | 2020-12-03 | 2021-08-06 | 南京机敏软件科技有限公司 | Method for copying and pasting among cloud application programs of multiple cross-cloud server host machine sessions |
| CN113242272B (en) * | 2021-03-24 | 2022-12-20 | 中国雄安集团数字城市科技有限公司 | MQTT service cluster-based session processing method and system |
| CN113382044B (en) * | 2021-05-24 | 2022-12-13 | 广东好太太智能家居有限公司 | Session information sharing method, system and storage medium based on replication mechanism |
| CN114885007A (en) * | 2022-03-31 | 2022-08-09 | 阿里云计算有限公司 | Method and electronic device for real-time strong consistency session synchronization |
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| WO2017097011A1 (en) | 2017-06-15 |
| CN105472002A (en) | 2016-04-06 |
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