CN105338095A - Conversation data processing method and device - Google Patents
Conversation data processing method and device Download PDFInfo
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- CN105338095A CN105338095A CN201510789363.2A CN201510789363A CN105338095A CN 105338095 A CN105338095 A CN 105338095A CN 201510789363 A CN201510789363 A CN 201510789363A CN 105338095 A CN105338095 A CN 105338095A
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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
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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
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/568—Storing data temporarily at an intermediate stage, e.g. caching
Abstract
The invention provides a conversation data processing method and device. The method comprises the following steps: forwarding a request of a client to a first application server, wherein the client and the first application server are in one-to-one correspondence; if the request is the first request of the client, enabling the first application server to locally generate the conversation of the request, saving the conversation locally, and submitting the conversation to a cache server; and if the request is not the first request of the client, enabling the first application server to further provide service for the request according to the locally saved historical conversation of the client, and synchronizing the updated conversation to the cache server. The invention also provides fault recovery schemes under the condition that the application server and the cache server have faults. According to the method and device provided by the invention, the reliability and expansibility of a system can be improved, and the response speed can be increased.
Description
Technical field
The present invention relates to data processing field, specifically, relate to a kind of session data processing method and device.
Background technology
Along with the development of the Internet correlation technique, increasing application service needs to carry out distributed type assemblies deployment, adopts multiple stage application server to provide service.By distributed type assemblies treatment technology, Internet service business can provide reliable application service again while reducing costs.And realize distributed type assemblies deployment, first need to solve session Session reunification mutual between client and cluster server, namely need the shared mechanism realizing Session between cluster, guarantee the transparency of cluster server to client.Current, under distributed cluster system, realize the unified mechanism of Session mainly contain following several method: the mechanism that Session copies: the Session data of an application server need broadcast replication on all the other application servers of cluster, thus it is shared to realize Session; The Session mechanism of managing concentratedly: provide unified platform to carry out Session management, thus realize sharing of Session; Mechanism based on cookie: Session is stored in client by the mechanism based on cookie, Session is all passed to server cluster by client by each request, and response server for client provides service, guarantees the unification of Session according to Session.
Realizing in the unified method of Session, the mechanism copied based on Session is when server node continues to increase, Session replicanism network delay and bandwidth cost large, particularly when saving larger object in Session, and object variation very fast time, systematic function will significantly decline.In Session centralized management mechanism, based on the shared mechanism of database and NFS slow relative to an internal memory order of magnitude in read or write speed, the response time is long, and systematic function is poor, increases the burden of database simultaneously; Session shared mechanism based on Cookie is difficult to realize safety.Therefore, how under the prerequisites such as high availability, high reliability and high scalability, unifying process to the session on distributed type assemblies can in order to need the technical problem of solution badly.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of session data processing method and device.
According to the first aspect of embodiment of the present invention, provide a kind of session data processing method, the method can comprise: by the request forward to the first of client application server, wherein, described client and described first application server have one-to-one relationship, if described request is the request first of described client, then described first application server this locality generates the session session of described request, described session is saved in this locality, and described session is committed to caching server, if described request is not the request first of described client, the historical session of described client that then described first application server is preserved according to this locality continues as described request service, and by this session synchronization upgraded to described caching server.
In certain embodiments of the present invention, described method also comprises: when described first application server Single Point of Faliure, described request is forwarded to the second application server, the session obtaining described client from described caching server by described second application server is described request service, and the session synchronization after this being upgraded is to described caching server.
In certain embodiments of the present invention, described method also comprises: when described caching server fault, if described request is the request first of described client, then described first application server generates the session of described request in this locality, described session is saved in this locality, then when described caching server is resumed work, described session is committed to described caching server, if described request is not the request first of described client, the historical session of described client that then described first application server is preserved according to this locality continues as described request service, the session synchronization of the described client of then being preserved this locality when described caching server is resumed work is to described caching server.
In certain embodiments of the present invention, described caching server and described application server are the relation of one-to-many.
In certain embodiments of the present invention, described method also comprises: when the session failed of described client, deletes the session of the described client of preserving in described application server and described caching server.
According to the second aspect of embodiment of the present invention, provide a kind of session data processing unit, this device can comprise: binding module, for by the request forward to the first of client application server, wherein, described client and described first application server have one-to-one relationship; Session management module, during for being the request first of described client in described request, the session session of described request is generated in described first application server this locality, described session is saved in this locality, and described session is committed to caching server, when described request is not the request first of described client, historical session according to the described client of described first application server this locality preservation continues as described request service, and by this session synchronization upgraded to described caching server.
In certain embodiments of the present invention, described device also comprises: Fisrt fault recovers module, for when described first application server Single Point of Faliure, described request is forwarded to the second application server, the session obtaining described client from described caching server by described second application server is described request service, and the session synchronization after this being upgraded is to described caching server.
In certain embodiments of the present invention, described device also comprises: the second Failure Recovery Module, for when described caching server fault, if described request is the request first of described client, generated the session of described request in this locality by described first application server, described session is saved in this locality, then when described caching server is resumed work, described session is committed to described caching server, if described request is not the request first of described client, the historical session of the described client of being preserved according to this locality by described first application server continues as described request service, the session synchronization of the described client of then being preserved this locality when described caching server is resumed work is to described caching server.
In certain embodiments of the present invention, described caching server and described application server are the relation of one-to-many.
In certain embodiments of the present invention, described session management module, also for when the session failed of described client, deletes the session of the described client of preserving in described application server and described caching server.
The session data processing method that embodiment of the present invention provides and device, by the Session management of local Session management and Memcache caching server is organically combined, achieve the Session unified management between cluster server, the Session simultaneously effectively avoiding Single Point of Faliure to cause loses, and guarantees the advantages such as the high security of group system, high availability, high reliability and high scalability; In addition, relative to Memcache group scheme, the present invention only needs, with a Memcache server, to reduce the cost of colony system deployment; Meanwhile, the mode adopting the local Session of server to store, decreases the access to Memcache caching server, reduces network overhead, improve response speed.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the session data processing method according to one embodiment of the present invention;
Fig. 2 is the structural representation of the session data processing unit according to one embodiment of the present invention.
Embodiment
Be described in detail to various aspects of the present invention below in conjunction with the drawings and specific embodiments.Wherein, well-known module, unit and connection each other, link, communication or operation do not illustrate or do not elaborate.Further, described feature, framework or function can combine by any way in one or more execution modes.It will be appreciated by those skilled in the art that following various execution modes are only for illustrating, but not for limiting the scope of the invention.Can also easy understand, the module in each execution mode described herein and shown in the drawings or unit or processing mode can be undertaken combining and designing by various different configuration.
See the schematic flow sheet that Fig. 1, Fig. 1 are the session data processing methods according to one embodiment of the present invention, the method specifically can comprise:
S101, by the request forward to the first of client application server, wherein, described client and described first application server have one-to-one relationship,
S102, judges that whether described request is the request first of this client, if so, then performs step S103, if not, then perform step S104;
S103, described first application server this locality generates the session of described request, described session is saved in this locality, and described session is committed to caching server,
S104, described first application server continues as described request service according to the historical session of the described client that this locality is preserved, and by this session synchronization upgraded to described caching server.
In embodiments of the present invention, the session data process meeting related generally between distributed type assemblies application server and client is talked about reunification process.Specifically, session data processing method of the present invention can comprise: step S101, by the request forward to the first of client application server.The request forward of client of the present invention is that the load balancing by presetting forwards, and after an application server A have received the request of a client a, the subsequent request of this client a directly can be forwarded to application server A process by the load balancing of setting.That is, application server and the client of embodiment of the present invention have one-to-one relationship, or perhaps binding, the request of same client is by same application server processes.
Then, perform step S102, judge that whether the request of described client is the request first of this client, if so, then perform step S103, if not, then perform step S104.
When the request of client is asking first of this client, perform step S103, first server responds the request that this client sends, and generates the session of this request in this locality, this session is kept at this locality, and session is committed to Memcache caching server.That is, session between cluster application server of the present invention and client carries out primary storage on the application server, Memcache caching server carries out for storage or from storage, by the cooperation that active and standby/principal and subordinate stores, improve the reliability of session data process.Compared with the session unified approach passing through in prior art to broadcast, when service node increases, avoid network delay and bandwidth cost, thus there is higher extensibility.
When the request of client is not asking first of this client, that is, this request is the request after the request first of this client, the application server processing the request of this client stores the historical session data of this client, so step S104 can be performed, the historical session of the described client that the first application server is preserved according to this locality continues this request server of this client, and by this session synchronization upgraded to described caching server.
In session data process of the present invention, the session variation each request of client caused is kept in local and caching server all simultaneously, ensure that data consistency on active and standby session memory device.And, the request of same client is responded by same server, just caching server is synchronized to when only having session to change, decrease repetitive sequence and the unserializing operation of the session between cluster server and Memcache caching server, decrease the access to caching server, reduce network overhead, improve the response speed of request.
Application server of the present invention and caching server have the relation of one-to-many, that is, only arranging a caching server for cluster application server, relative to adopting the scheme of distributed caching cluster to compare in prior art, reducing the cost of deployment.
Session data processing method of the present invention also can comprise: when the session failed of this client, such as, when this client ending request or the session term of validity this client interior are without request, delete the session of this client of preserving in described application server (such as, the first server etc. of the request of this client of process recited above) and described caching server.During the change of each session status, the master-slave equipment application server of store session and caching server are upgraded simultaneously, guarantee the consistency of session data on Initiative Inventory Management equipment.
In addition, session data processing method of the present invention also can comprise: when described first application server Single Point of Faliure, by the request forward of described client to normal the second application server worked, the session obtaining described client from described caching server by the second application server is the request service of this client, and the session synchronization after this being upgraded is to described caching server.That is, when providing an application server Single Point of Faliure of request response, the session data of failed server is lost, and now can redistribute a server by load strategy is the request service of this client.The session data of this client can be returned to this locality by Memcache caching server by the server of being newly transported to, and continues as client provide respond services according to the session data returning to this locality.
In addition, session data processing method of the present invention also can comprise: when caching server fault, if the request of described client is the request first of this client, then described first application server generates the session of this request in this locality, this session is kept at this locality, then when this caching server is resumed work, this session is committed to this caching server; When the request of described client is not asking first of this client, that is, the request of the first application server formerly this client processed, the historical session data of this client are preserved in this locality, so the first application server can continue the request service of this client according to the historical session of this client of this locality preservation, and the session synchronization of this client of then being preserved this locality when this caching server is resumed work is to this caching server.That is, in Dialog processing of the present invention, even if caching server breaks down, the session data being stored in caching server is lost, application server in cluster still by local session of preserving for client provides service, can not can impact the request response of client.
The present invention is by adopting the combination of the Session management of local Session management and Memcache caching server, effectively realize the Session unified management between cluster server, the Session simultaneously effectively avoiding Single Point of Faliure to cause loses, and guarantees the advantage of the high security of cluster, high availability, high reliability, high scalability; In addition, relative to Memcache group scheme, the present invention only needs, with a Memcache server, to achieve the low cost operation of service provider; Meanwhile, adopt the mechanism of the local Session of server, decrease the access to Memcache caching server, reduce network overhead, improve response speed.
Describe the flow process of session data processing method of the present invention above in conjunction with embodiment, describe the device of application said method below in conjunction with embodiment.
See the structural representation that Fig. 2, Fig. 2 are the session data processing unit according to one embodiment of the present invention, this session data processing unit 200 can comprise:
Binding module 201, for by the request forward to the first of client application server, wherein, described client and described first application server have one-to-one relationship;
Session management module 202, during for being the request first of described client in described request, the session of described request is generated in described first application server this locality, described session is saved in this locality, and described session is committed to caching server, when described request is not the request first of described client, the historical session according to the described client of described first application server this locality preservation continues as described request service, and by this session synchronization upgraded to described caching server.
Session data processing unit 200 meeting that mainly can be used between distributed type assemblies application server and client of the present invention is talked about reunification process, specifically, binding module 201 and session management module 202 can be comprised, these modules can be arranged on different server apparatus, such as, binding module 201 can be arranged on the load-balanced server between client and application server cluster, session management module 202 can be arranged on the application server, as a functional module of application server.
User is after request is initiated in client side, and binding module 201 can by the request forward to the first of client application server.The request forward of client of the present invention is that the load balancing by presetting forwards, and after an application server A have received the request of a client a, the subsequent request of this client a directly can be forwarded to application server A process by the load balancing of setting.That is, application server and the client of embodiment of the present invention have one-to-one relationship, or perhaps binding, the request of same client is by same application server processes.
Session management module 202 can when the request of client be asking first of this client, by this request of the first application server responses, generate the session of this request in this locality, this session is kept at this locality, and session is committed to Memcache caching server.That is, session between cluster application server of the present invention and client carries out primary storage on the application server, Memcache caching server carries out for storage or from storage, by the cooperation that active and standby/principal and subordinate stores, improve the reliability of session data process.Compared with the session unified approach passing through in prior art to broadcast, when service node increases, avoid network delay and bandwidth cost, thus there is higher extensibility.
Session management module 202 is not when the request of client is asking first of this client, that is, this request is the request after the request first of this client, the application server processing the request of this client stores the historical session data of this client, the historical session of the described client of being preserved according to this locality by the first application server continues this request server of this client, and by this session synchronization upgraded to described caching server.
Session management module of the present invention, the session each request of client caused variation is kept in local and caching server all simultaneously, ensure that data consistency on active and standby session memory device.And, the request of same client is responded by same server, just caching server is synchronized to when only having session to change, decrease repetitive sequence and the unserializing operation of the session between cluster server and Memcache caching server, decrease the access to caching server, reduce network overhead, improve the response speed of request.
Application server of the present invention and caching server have the relation of one-to-many, that is, only arranging a caching server for cluster application server, relative to adopting the scheme of distributed caching cluster to compare in prior art, reducing the cost of deployment.
When session management module 202 of the present invention is also used in the session failed of this client, such as, when this client ending request or the session term of validity this client interior are without request, delete the session of this client of preserving in described application server (such as, the first server etc. of the request of this client of process recited above) and described caching server.Session management module 202, when the change of each session status, upgrades the master-slave equipment application server of store session and caching server simultaneously, guarantees the consistency of session data on Initiative Inventory Management equipment.
Session data processing unit 200 of the present invention also can comprise Fisrt fault and recover module, when this Fisrt fault recovery module is used in described first application server Single Point of Faliure, by the request forward of described client to normal the second application server worked, the session obtaining described client from described caching server by the second application server is the request service of this client, and the session synchronization after this being upgraded is to described caching server.That is, when providing an application server Single Point of Faliure of request response, the session data of failed server is lost, and now Fisrt fault recovery module can redistribute a server by load strategy is the request service of this client.The session data of this client can be returned to this locality by Memcache caching server by the server of being newly transported to, and continues as client and provides respond services, improve system external reliability of service according to the session data returning to this locality.
Session data processing unit 200 of the present invention also can comprise the second Failure Recovery Module, when this second Failure Recovery Module is used in caching server fault, if the request of described client is the request first of this client, generated the session of this request in this locality by the first application server, this session is kept at this locality, then when this caching server is resumed work, this session is committed to this caching server; When the request of this client is not asking first of this client, that is, the request of the first application server formerly this client processed, the historical session data of this client are preserved in this locality, so continued the request service of this client by the historical session of this client of first application server this locality preservation, the session synchronization of this client of then being preserved this locality when this caching server is resumed work is to this caching server.That is, second Failure Recovery Module of the present invention, even if caching server breaks down, the session data being stored in caching server is lost, the session that this locality of the application server in cluster still can be utilized to preserve provides service for client, can not impact the request response of client, improve system external reliability of service.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode of software combined with hardware platform.Based on such understanding, what technical scheme of the present invention contributed to background technology can embody with the form of software product in whole or in part, this computer software product can be stored in storage medium, as ROM/RAM, magnetic disc, CD etc., comprising some instructions in order to make a computer equipment (can be personal computer, server, smart mobile phone or the network equipment etc.) perform the method described in some part of each embodiment of the present invention or embodiment.
The term used in specification of the present invention and wording, just to illustrating, are not meaned and are formed restriction.It will be appreciated by those skilled in the art that under the prerequisite of the general principle not departing from disclosed execution mode, can various change be carried out to each details in above-mentioned execution mode.Therefore, scope of the present invention is only determined by claim, and in the claims, except as otherwise noted, all terms should be understood by the most wide in range rational meaning.
Claims (10)
1. a session data processing method, is characterized in that, described method comprises:
By the request forward to the first of client application server, wherein, described client and described first application server have one-to-one relationship,
If described request is the request first of described client, then described first application server this locality generates the session of described request, described session is saved in this locality, and described session is committed to caching server,
If described request is not the request first of described client, then the historical session of described client that described first application server is preserved according to this locality continues as described request service, and by this session synchronization upgraded to described caching server.
2. method according to claim 1, is characterized in that, described method also comprises:
When described first application server Single Point of Faliure,
Described request is forwarded to the second application server, the session obtaining described client from described caching server by described second application server is described request service, and the session synchronization after this being upgraded is to described caching server.
3. method according to claim 1, is characterized in that, described method also comprises:
When described caching server fault,
If described request is the request first of described client, then described first application server generates the session of described request in this locality, described session is saved in this locality, then when described caching server is resumed work, described session is committed to described caching server
If described request is not the request first of described client, the historical session of described client that then described first application server is preserved according to this locality continues as described request service, and the session synchronization of the described client of then being preserved this locality when described caching server is resumed work is to described caching server.
4. according to the method in any one of claims 1 to 3, it is characterized in that, described caching server and described application server are the relation of one-to-many.
5. according to the method in any one of claims 1 to 3, it is characterized in that, described method also comprises:
When the session failed of described client, delete the session of the described client of preserving in described application server and described caching server.
6. a session data processing unit, is characterized in that, described device comprises:
Binding module, for by the request forward to the first of client application server, wherein, described client and described first application server have one-to-one relationship;
Session management module, during for being the request first of described client in described request, the session of described request is generated in described first application server this locality, described session is saved in this locality, and described session is committed to caching server, when described request is not the request first of described client, the historical session according to the described client of described first application server this locality preservation continues as described request service, and by this session synchronization upgraded to described caching server.
7. device according to claim 6, is characterized in that, described device also comprises:
Fisrt fault recovers module, for when described first application server Single Point of Faliure, described request is forwarded to the second application server, the session obtaining described client from described caching server by described second application server is described request service, and the session synchronization after this being upgraded is to described caching server.
8. device according to claim 6, is characterized in that, described device also comprises:
Second Failure Recovery Module, for when described caching server fault, if described request is the request first of described client, generated the session of described request in this locality by described first application server, described session is saved in this locality, then when described caching server is resumed work, described session is committed to described caching server, if described request is not the request first of described client, the historical session of the described client of being preserved according to this locality by described first application server continues as described request service, the session synchronization of the described client of then being preserved this locality when described caching server is resumed work is to described caching server.
9. the device according to any one of claim 6 to 8, is characterized in that, described caching server and described application server are the relation of one-to-many.
10. the device according to any one of claim 6 to 8, is characterized in that, described session management module, also for when the session failed of described client, deletes the session of the described client of preserving in described application server and described caching server.
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