CN104702684B - A kind of method of data synchronization and device - Google Patents
A kind of method of data synchronization and device Download PDFInfo
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- CN104702684B CN104702684B CN201510103621.7A CN201510103621A CN104702684B CN 104702684 B CN104702684 B CN 104702684B CN 201510103621 A CN201510103621 A CN 201510103621A CN 104702684 B CN104702684 B CN 104702684B
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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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- 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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Abstract
The present invention provides a kind of method of data synchronization, this method comprises: when the corresponding session information change of conversation type, the host apparatus will need location information of the session information to be changed in the corresponding session information of the conversation type of storage, and the session information after change is sent to stand-by equipment, so that the stand-by equipment updates the session information of change according to the location information and session information received in the session information for the session being locally stored.Based on same inventive concept, the application also proposes a kind of data synchronization unit, can reduce synchronous data volume, to improve equipment performance.
Description
Technical field
The present invention relates to field of communication technology, in particular to a kind of method of data synchronization and device.
Background technique
In current networking application, requirement of the user to network reliability is higher and higher, how to guarantee user service data
Interrupted transmission, become a problem urgently to be solved.Under the network environment of traditional single gateway, once there is chain
Road, node failure, the business of all users can all interrupt, and the time of business recovery can not also determine.
Virtual service redundancy protocol (Virtual Service Redundancy Protocol, VSRP), by improving net
The reliability of network improves the stability of customer service；In the case where network failure, stand-by equipment being capable of rapid pipe connecting
Customer service, so that user's perception continues to use Internet resources less than the failure of network.
There are two equipment in multi-computer back-up group, one is called host apparatus, and another is called stand-by equipment.Host apparatus is
Business provides support, forwarding service flow, and can send after reaching flow threshold sometime or centainly to stand-by equipment
Service backup information；Stand-by equipment is spare to set after host apparatus breaks down except the service backup information for receiving host apparatus
It is standby to be converted into host apparatus, continue forwarding service flow, interrupt business will not.
Currently, multi-computer back-up function is mainly used in broadband remote access servers (Broadband Remote Access
Server, BRAS) in networking, multi-computer back-up is carried out to the BRAS equipment in Network Convergence Layer, host apparatus and stand-by equipment are real
When interactive user BRAS authentication information, charge information and customer account management information, thus ensure that BRAS system run without interruption,
Improve reliability.
It include various types of information, such as session essential information, AAA attribute information etc. by BRAS online session.
When using multi-computer back-up networking, the message that session needs to back up is very more, a session about Backup Data of 2KB.Mesh
The session specification requirement of preceding BRAS is in 32K.When close to full specification, whole Backup Datas, about 64M.Work as a large number of users
It is upper offline, or when the certain attributes of change, even based on transmission control protocol (Transmission Control Protocol, TCP)
The VSRP backup path connect can be very busy, causes the information of host apparatus and stand-by equipment that cannot accomplish real-time synchronization, even
Influence equipment performance.
Summary of the invention
In view of this, the application provides a kind of method of data synchronization and device, with big, the equipment performance that solves the synchronous amount of data
Low problem.
In order to solve the above technical problems, the technical solution of the application is achieved in that
A kind of method of data synchronization, this method comprises:
Host apparatus configures storage organization for each conversation type, and being sent to stand-by equipment is directed to the stand-by equipment
Each conversation type stores corresponding storage organization；Storage organization for the configuration of any conversation type is that the conversation type is corresponding
Each session information is arranged by preset order, and distributes particular memory length for each session information, for any session information
Particular memory length is to store the maximum length of the session information；
When the corresponding session of any conversation type is online, which should according to the storage organization storage being locally configured
The corresponding session information of conversation type, and the session information is sent to the stand-by equipment according to the storage organization, with
The stand-by equipment is set to store the session information according to the corresponding storage organization of the conversation type being locally stored；
When the corresponding session information change of the conversation type, which will need session information to be changed storing
The corresponding session information of the conversation type in location information, and change session information be sent to the stand-by equipment,
So that the stand-by equipment according to the location information and session information received the session being locally stored session information
The middle session information for updating change.
A kind of data synchronization unit, which is characterized in that the device includes: configuration unit and processing transmission unit；
The configuration unit, for configuring storage organization for each conversation type；For depositing for any conversation type configuration
Storage structure is to arrange the corresponding each session information of the conversation type by preset order, and deposit for the distribution of each session information is specific
Length is stored up, the particular memory length for any session information is to store the maximum length of the session information；
The processing transmission unit is sent to for the storage organization by the configuration unit for the configuration of each conversation type
Stand-by equipment makes the stand-by equipment store corresponding storage organization for each conversation type；When the corresponding session of any conversation type
When online, the corresponding session information of the conversation type is stored according to the storage organization being locally configured, and according to the storage organization
The session information is sent to the stand-by equipment, so that the stand-by equipment is corresponding according to the conversation type being locally stored
Storage organization store the session information；When the corresponding session information change of the conversation type, session to be changed will be needed
Location information of the information in the corresponding session information of the conversation type of storage, and change session information be sent to it is described
Stand-by equipment, so that the stand-by equipment is according to the location information and session information received in the session being locally stored
The session information of change is updated in session information.
As can be seen from the above technical solution, by configuring fixed storage organization for each conversation type in the application,
When host apparatus is needed to stand-by equipment simultaneous session information, only by fixed data structure and the position letter of session information is changed
The session information of the synchronous change of breath, can reduce synchronous data volume, to improve equipment performance.
Detailed description of the invention
Fig. 1 is the synchronous flow diagram of data in the embodiment of the present application；
Fig. 2 is the apparatus structure schematic diagram for being applied to above-mentioned technology in the embodiment of the present application.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and examples,
Technical solution of the present invention is described in detail.
A kind of method of data synchronization is provided in the embodiment of the present application, it is primary applied on the host apparatus in BRAS networking
Equipment configures storage organization according to the corresponding session information situation of each conversation type, for each conversation type.For any session
The storage organization of type configuration is to arrange the corresponding each session information of the conversation type by preset order, and believe for each session
Breath distribution particular memory length, the particular memory length for any session information are to store the maximum length of the session information.
The corresponding session information of session for any conversation type includes: session essential information, attribute information, charging letter
Breath etc., wherein attribute information includes: user VPN attribute information, DHCP attribute information, user-profile attribute information etc.；Meter
Charge information includes: to have used flow, residual flow, on-line time, remaining line duration, entered and left traffic messages number, go out inbound traffics
Byte number etc..
In specific implementation, each session information can be arranged according to practical situations preset order, such as by essential information,
The sequence arrangement of attribute information, charge information also presses preset order configuration for each information in attribute information and charge information,
By taking attribute information as an example, arranged by the sequence of user VPN attribute information, DHCP attribute information, user-profile attribute information,
The row for each information for including to the sequence and attribute information of each session information and charge information etc. in the application specific embodiment
Column sequence is not limited.
Host apparatus configures storage organization for each conversation type, and is sent to stand-by equipment so that the stand-by equipment needle
Corresponding storage organization is stored to each conversation type；
Conversation type in BRAS networking includes: IPoE, PPPoE, Portal etc.；Various conversation types essential information,
Different from attribute information number and type, charge information, thus the particular memory for the configuration of each session information of configuration
Length can be adaptively adjusted as the case may be.
A kind of session of conversation type usually exists multiple, that is, has multiple users to initiate sessions, host apparatus is in order to one
Different sessions are distinguished in a conversation type, distribute session call number for each session.
The session call number of distribution can be calculated by the information of the session uniquely determined and be obtained, such as the IP according to session
Location and VLAN mark determine, the specific implementation of distribution session call number is not intended to limit in the embodiment of the present application.
The storage organization of configuration is sent to spare by host apparatus after locally for each conversation type configuration storage organization
Equipment so that stand-by equipment stores the storage organization received, and for receive after Backup Data by Backup Data according to
The storage organization of storage is stored.
A TCP data channel, every TCP data are established for every kind of conversation type between host apparatus and stand-by equipment
Channel is for transmitting a kind of corresponding relevant information of conversation type.Assuming that there are IPoE and PPPoE two types on host apparatus
2 TCP data channels are then established in session.
After establishing completion for a certain conversation establishing TCP data tunnel, by local depositing for the conversation establishing
Storage structure carrying is sent to stand-by equipment in TCP message.The TCP message for sending storage organization uses negotiation request type mark
Know.
Below for for conversation type IPoE, description host apparatus sends to stand-by equipment and deposits for what IPoE was configured
The process of storage structure.
Referring to table 1, table 1 is that type of backup is the content negotiated the TCP message of request and include in the embodiment of the present application.
Table 1
Due to using TCP transmission, the heading in table 1 includes Ethernet header, IP and TCP header；Type of backup is to negotiate to ask
It asks, backup length is that conversation type arrives the total length of charge information, i.e., the corresponding content of type of backup includes conversation type to counting
All information between charge information；Conversation type is IPoE, and length of session is the total length that session indexes charge information, i.e., can
The corresponding content of call type includes that session indexes information all between charge information；Session index, only distributes particular memory
Length does not carry the occurrence of session index in storage organization；Essential information is included in IPoE session and matches for essential information
The preset length set；Attribute information and charge information are processed similarly with essential information, if some information is in the conversation class
It is not present under type, then distributing preset length is 0.
The type of backup that stand-by equipment receives host apparatus transmission is when negotiating the TCP message of request, to be somebody's turn to do according to receiving
The channel of TCP message determines the targeted conversation type of the information carried in the TCP message；And it is deposited for determining conversation type
The storage organization carried in the TCP message is stored up, the storage organization of storage is the same as the storage organization configured on host apparatus.
After stand-by equipment stores associated storage structure, sending type of backup to host apparatus is to negotiate the TCP report of response
Text.Referring to table 2, table 2 is that type of backup is the content negotiated the TCP message of response and include in the embodiment of the present application.
Table 2
Stand-by equipment to host apparatus send type of backup be negotiate response TCP message when, do not need carry store
Structurally interrelated information only gives host apparatus one response.Therefore, the type of backup in table 2 is to negotiate the TCP report of request
Only type of backup and the difference in table 1, the information of other field identifications are all the same for relevant information in text.
In specific implementation, in negotiations process, if preset time is then, host apparatus does not receive stand-by equipment also
When the negotiation response message of transmission, message of negotiation request is sent to stand-by equipment again, until receiving negotiation response message, or
When transmission message of negotiation request reaches preset times, terminate to negotiate process.
After being also possible to host apparatus to stand-by equipment transmission storage organization, default stand-by equipment is received and is stored, no
The response of stand-by equipment is needed, whether the application replys stand-by equipment, and how long interior response determines that stand-by equipment is
It is no to receive and normal storage and with no restrictions；Even in specific implementation, it can directly be configured with primary on stand-by equipment
Identical storage organization can also in equipment.
It is the synchronous flow diagram of data in the embodiment of the present application referring to Fig. 1, Fig. 1.Specific steps are as follows:
Step 101, when the corresponding session of any conversation type is online, host apparatus is according to the storage organization being locally configured
The corresponding session information of the conversation type is stored, and the session information is sent to stand-by equipment according to the storage organization,
So that the stand-by equipment stores the session information according to the corresponding storage organization of the conversation type being locally stored.
Host apparatus stores the corresponding session information of the conversation type according to the storage organization being locally configured in this step,
When specific implementation, the call number of the session is first determined according to session information, and according to local depositing for conversation type storage
Storage structure stores corresponding session information, i.e., first stores session call number, the essential information for storing session information again, attribute information
With charge information etc..For the session, specific deposited if some session information without content, also needs to apply that the session information is corresponding
The memory space user of length is stored up, the information only stored is sky.
After host apparatus stores session information, the session information is sent to the stand-by equipment, so that described
Stand-by equipment stores the session information according to the corresponding storage organization of the conversation type being locally stored.In specific implementation,
Since session is online, the session information backed up will be needed to carry in the TCP message that type of backup is addition through the session
The corresponding TCP data channel of conversation type is sent to stand-by equipment, so that stand-by equipment knows how to handle by type of backup
The TCP message received.
Referring to table 3, table 3 is the content that the TCP message that the type of backup that host apparatus is sent is addition includes.
Table 3
For heading with the heading in table 2, type of backup is addition in table 3, indexes corresponding session for a session
The data backup carried out when online.Associated session letter is carried in TCP message according to preconfigured sequence and data structure
Breath, in the absence of some session information, with 0 filling.
Stand-by equipment by TCP data channel reception arrive TCP message when, by reception TCP message TCP data channel it is true
Surely conversation type corresponding to the TCP message received adds further according to the type of backup of the TCP message received, determines master
Data backup is carried out since session is online with equipment, it is determined that the local session index with the presence or absence of the session is corresponding standby
Part data, if it is present being indexed using the session that the session information that the TCP message received carries updates the session corresponding
Session information；Otherwise, the meeting in TCP message received according to the corresponding storage organization storage of the conversation type being locally stored
Talk about information, the i.e. session information of the index respective session of storage session for the first time.
Stand-by equipment can be stored in the form of list item, can also be stored with data block format when storing session information,
When the application implements, the concrete form of storage is not limited.Below by taking entry format stores as an example, stand-by equipment is described in detail
The detailed process of the session information carried in the TCP message that storage type of backup is addition:
Stand-by equipment obtains the end position of backup session chained list on stand-by equipment (if first backup session, then just
Beginningization related data structures and chained list, it will words are used as first backup session data of chained list), according to individual session length value Shen
Please memory, and backup session chained list end position is articulated to, then by the meeting of the entire session carried in the TCP message received
Information is talked about, directly filling copies in the memory newly applied, to generate corresponding backup session list item.
Step 102, when the corresponding session information change of the conversation type, which will need session to be changed to believe
Cease location information in the corresponding session information of the conversation type of storage, and change session information be sent to it is described standby
With equipment so that the stand-by equipment according to the location information and session information received the session being locally stored meeting
The session information of change is updated in words information.
When the corresponding session information change of conversation type, such as the user in attribute information, charge information or attribute information
One or several attribute information variations such as VPN attribute information find the corresponding meeting of storage according to the call number of the session in local
The session information of words, and the session information for needing to update is updated.
In an embodiment of the present invention, for host apparatus by after local session information update, determining needs session to be changed
Location information of the information in the session information of storage, in specific implementation, any meeting of the corresponding session of any conversation type
The location information of information is talked about, can be the position offset of the session information to corresponding first session information of the session；If
Session call number is distributed for the session, then the location information of the session information, can be indexed for the session information to respective session
Number position offset, or remain as the position offset of corresponding first session information of the session.
By taking location information is the session information to the position offset of respective session call number as an example:
Assuming that the session information of change is first attribute information in attribute information, then for first attribute letter
Breath, offset are the sum of length shared by session index shared length and essential information.
Host apparatus, which determines, needs the corresponding conversation type of Backup Data to be changed and session index and each session information
The location information of the session information of the opposite corresponding storage of session index, and the session information updated is needed to carry in type of backup
Stand-by equipment to be sent to by the corresponding TCP data channel of the conversation type, so that stand-by equipment in the TCP message of update
When receiving the TCP message, know that the session information change due to respective session needs Backup Data, to be located accordingly
Reason.
For being arranged in most preceding user's VPN attribute information change in attribute information, detailed description host apparatus is to standby
The TCP message sent with equipment.
Referring to table 4, table 4 is that the type of backup that host apparatus is sent is the content that the TCP message updated includes.
Table 4
For heading with table 1 to the heading in table 3, type of backup is filled with update in table 4, and session index is filled with, and is
The call number of the session distribution of session information change, location information of the offset for realizing the attribute information of change, attribute letter
Breath is filled with the VPN attribute information after change, and offset is that VPN attribute information indexes in stored session information to session
Offset.
It can be seen that only the session information of change is sent to spare when the application is embodied in session information change
Equipment is updated, without all sending all session informations of the session including the session information not changed
It conversates the update of information to stand-by equipment, therefore, simultaneous pressure is not in data backup for technical solution provided by the present application
Greatly, equipment performance is influenced smaller.
Stand-by equipment by TCP data channel reception arrive TCP message when, determine the TCP message type of backup be update
When, determine the local corresponding session information of session call number that whether there is and carry in the TCP message, if it is present according to
The respective session information that the updating location information that the TCP message carries is locally stored；Otherwise, which is abandoned.
The determination in the session information for the session being locally stored is corresponding according to the location information received for stand-by equipment
The initial position of session information, and update corresponding session from the initial position using the session information of the change received and believe
Breath.The detailed process that stand-by equipment updates session information can be such that the session on the backup session chained list for extracting stand-by equipment
The conversation start position and offset addition, are then calculated and need to update by initial position (session indexes first character section)
Session information initial position to be modified, the session information updated storage using the corresponding session information of the offset.
It should be understood that in step 101 when session is online on stand-by equipment corresponding session information storage, meeting
The filling copy procedure of words information can be regarded as session information and change from scratch, the meeting being also referred in step 102
Operation when information change is talked about, whole session informations are updated.
When the corresponding session of the conversation type is offline, host apparatus is by the corresponding charge information of the session in session information
In location information and the charge information be sent to the stand-by equipment so that the stand-by equipment is according to receiving
Location information and charge information update charge information in the session information for the session being locally stored.
Detailed process is as follows:
When host apparatus determines that session is offline, while locally carrying out relevant treatment, backup class is sent to stand-by equipment
Type is the TCP message deleted, so that stand-by equipment knows that the session is offline, carries out relevant treatment.
Host apparatus is the charge information carried in session information in the TCP message deleted in the type of backup of transmission, with
And the corresponding location information of charge information, it does not need to carry other session informations.
Host apparatus determines the corresponding conversation type of offline session and session index, is that the TCP deleted is reported by type of backup
Text is sent by the determining corresponding TCP data channel of conversation type.
Referring to table 5, table 5 is that the type of backup that host apparatus is sent is the content that the TCP message deleted includes.
Table 5
For heading in table 5 with table 1 to the heading in table 4, type of backup is to delete, and session index is offline session pair
The session index answered, offset are the offset that charge information to session indexes in the corresponding session information of the session.
When stand-by equipment receives the TCP message, conversation type is determined according to the TCP data channel for receiving the TCP message,
Determine that the TCP message is the deletion message of the offline transmission of session according to type of backup, it is determined that local to whether there is the session rope
The corresponding session information of session call number in drawing, if it is present the location information (offset) carried according to the TCP message
Update charge information；Otherwise, which is abandoned.
Specific implementation can be such that (the session index the of the conversation start position on the backup session table for extracting stand-by equipment
One byte), then the conversation start position and offset addition are calculated to the start bit to be modified for needing to modify data
It sets, thus by being stored on the length covering stand-by equipment of session information initial position to be modified and session information in TCP message
The corresponding charge information of the session.
What is all enumerated in the TCP message of, session information change online above with respect to session and the offline transmission of session is one
Session indexes corresponding session information, when needing multiple sessions for same type session to carry out data backup, Ke Yi
The multiple sessions carried in one TCP message index corresponding session information, index stand-by equipment for each session corresponding
Session information is handled respectively.In practical applications, session attribute information, such as VPN, user-profile attribute information,
For 32 bytes.When the variation of only 1 attribute information, in addition 1 offset, using 2 bytes, 34 byte in total, compared to
Complete length of session about 2K, saves 2048-34=2014 byte.If 2 attributes change simultaneously, in addition 2 offsets, always
Totally 66 bytes save 2048-66=1982 byte compared to complete length of session about 2K.
Charge information often uses content: having used flow, residual flow, on-line time, remaining line duration, has gone out inbound traffics report
Literary number, out inbound traffics byte number etc..Outflow message number, inbound traffics message number, outflow byte number, inbound traffics byte number,
The variables such as residual flow, session duration use 8 bytes respectively, totally 48 byte；In addition 6 offsets, totally 12 byte, 60 word in total
Section saves 2048-60=1988 byte compared to complete length of session about 2K.
When session is offline, charge information is only carried, can equally save 1988 bytes.Session specification is 32K, net in equipment
Whole user offline is frequent in network.Therefore it can subtract at least part of synchrodata flow.
Wherein, charge information is periodic synchronous, and data synchronize very frequently, therefore, it is considerable to save byte number.And
Session specification is 32K in equipment, when full specification is online, only considers the synchronization of charge information, a metering period can be saved
32K*2K=64M synchrodata flow.
Therefore, technical solution provided by the present application can greatly mitigate facility load, route burden.So as to pass through
A small amount of synchronous flow completes synchronous demand.The problems such as avoiding the obstruction and message loss under big flow.
By fixed data structure on stand-by equipment in the embodiment of the present application, associated session letter is updated according to offset
Breath accelerates the speed of data update.
Based on same inventive concept, the application also proposes a kind of data synchronization unit.Referring to fig. 2, Fig. 2 is that the application is real
Apply the apparatus structure schematic diagram for being applied to above-mentioned technology in example.The device includes: configuration unit 201 and processing transmission unit 202；
Configuration unit 201, for configuring storage organization for each conversation type；For the storage of any conversation type configuration
Structure is to arrange the corresponding each session information of the conversation type by preset order, and distribute particular memory for each session information
Length, the particular memory length for any session information are to store the maximum length of the session information；
Transmission unit 202 is handled, it is standby for configuration unit 201 to be sent to for the storage organization of each conversation type configuration
The stand-by equipment is set to store corresponding storage organization for each conversation type with equipment；When in the corresponding session of any conversation type
When line, the corresponding session information of the conversation type is stored according to the storage organization being locally configured, and will according to the storage organization
The session information is sent to the stand-by equipment, so that the stand-by equipment is corresponding according to the conversation type being locally stored
Storage organization stores the session information；When the corresponding session information change of the conversation type, session to be changed will be needed to believe
Cease location information in the corresponding session information of the conversation type of storage, and change session information be sent to it is described standby
With equipment so that the stand-by equipment according to the location information and session information received the session being locally stored meeting
The session information of change is updated in words information.
Preferably,
Transmission unit 202 is handled, is further used for when the corresponding session of the conversation type is offline, the session is corresponding
Location information and the charge information of the charge information in session information are sent to the stand-by equipment, so that described standby
Charging is updated in the session information for the session being locally stored according to the location information and charge information that receive with equipment
Information.
Preferably,
Configuration unit 201 is further used for establishing transmission control protocol TCP with stand-by equipment respectively for each conversation type
Data channel；
Transmission unit 202 is handled, is further used for for the storage organization of each conversation type or session information being sent to spare
It when equipment, carries in TCP message, the TCP data channel hair established respectively by the corresponding conversation type of configuration unit 201
It send, so that the stand-by equipment knows storage organization or the corresponding conversation type of session information in the TCP message.
Preferably,
The location information of any session information of the corresponding session of any conversation type, for the session information to the session pair
The position offset for first session information answered.
Preferably,
Handle transmission unit 202, be further used for when for the corresponding session of any conversation type there are it is multiple when, according to
The corresponding session information of the session is session distribution session call number, and corresponding sending the session to the stand-by equipment
When session information, the session call number for session distribution is carried, so that the stand-by equipment knows that the host apparatus is sent
The corresponding session of session information.
Preferably,
Session call number is distributed if session, then the location information of any session information of the session, for the session information
To the position offset of the corresponding session call number of the session.
The unit of above-described embodiment can integrate in one, can also be deployed separately；It can be merged into a unit, it can also
To be further split into multiple subelements.
In conclusion the application is by the storage organization fixed for the configuration of each conversation type, host apparatus need to
When stand-by equipment simultaneous session information, only pass through the meeting of fixed data structure and the location information synchronizing change for changing session information
Information is talked about, synchronous data volume can be reduced, to improve equipment performance.
Stand-by equipment updates related session information by fixed data structure, according to offset, accelerates data update
Speed.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the present invention.
Claims (12)
1. a kind of method of data synchronization, which is characterized in that this method comprises:
Host apparatus configures storage organization for each conversation type, and being sent to stand-by equipment makes the stand-by equipment for each meeting
Call type stores corresponding storage organization；Storage organization for the configuration of any conversation type is by the corresponding each meeting of the conversation type
It talks about information to arrange by preset order, and distributes particular memory length for each session information, for the specific of any session information
Memory length is the maximum length for storing the session information；
When the corresponding session of any conversation type is online, which stores the session according to the storage organization being locally configured
The corresponding session information of type, and the session information is sent to the stand-by equipment according to the storage organization, so that institute
It states stand-by equipment and the session information is stored according to the corresponding storage organization of the conversation type being locally stored；
When the corresponding session information change of the conversation type, which will need session information to be changed being somebody's turn to do in storage
Location information in the corresponding session information of conversation type, and the session information of change are sent to the stand-by equipment, so that
The stand-by equipment according to the location information and session information received in the session information for the session being locally stored more
The session information newly changed.
2. the method according to claim 1, wherein the method further includes:
When the corresponding session of the conversation type is offline, the host apparatus is by the corresponding charge information of the session in session information
Location information and the charge information be sent to the stand-by equipment so that the stand-by equipment is according to the position received
Confidence breath and charge information update charge information in the session information for the session being locally stored.
3. method according to claim 1 or 2, which is characterized in that the method further includes: host apparatus is for each
Conversation type establishes transmission control protocol TCP data channel with stand-by equipment respectively；
When the storage organization of each conversation type or session information are sent to stand-by equipment by host apparatus, carry in TCP message,
It is sent by the TCP data channel that the corresponding conversation type is established, is deposited so that the stand-by equipment is known in the TCP message respectively
Storage structure or the corresponding conversation type of session information.
4. method according to claim 1 or 2, which is characterized in that
The location information of any session information of the corresponding session of any conversation type, it is corresponding to the session for the session information
The position offset of first session information.
5. method according to claim 1 or 2, which is characterized in that
When for the corresponding session of any conversation type there are it is multiple when, according to the corresponding session information of the session be the session divide
With session call number, and when sending the corresponding session information of the session to the stand-by equipment, carry as session distribution
Session call number, so that the stand-by equipment knows the corresponding session of session information that the host apparatus is sent.
6. according to the method described in claim 5, it is characterized in that,
Session call number is distributed if session, then the location information of any session information of the session arrives this for the session information
The position offset of the corresponding session call number of session.
7. a kind of data synchronization unit, which is characterized in that the device includes: configuration unit and processing transmission unit；
The configuration unit, for configuring storage organization for each conversation type；For the storage knot of any conversation type configuration
Structure is by the corresponding each session information of the conversation type by preset order arrangement, and long for each session information distribution particular memory
Degree, the particular memory length for any session information are to store the maximum length of the session information；
The processing transmission unit, it is spare for the configuration unit to be sent to for the storage organization of each conversation type configuration
Equipment makes the stand-by equipment store corresponding storage organization for each conversation type；When the corresponding session of any conversation type is online
When, the corresponding session information of the conversation type is stored according to the storage organization being locally configured, and according to the storage organization by institute
It states session information and is sent to the stand-by equipment, so that the stand-by equipment is deposited according to the conversation type being locally stored is corresponding
Storage structure stores the session information；When the corresponding session information change of the conversation type, session information to be changed will be needed
Location information in the corresponding session information of the conversation type of storage, and change session information be sent to it is described spare
Equipment so that the stand-by equipment according to the location information and session information received the session being locally stored session
The session information of change is updated in information.
8. device according to claim 7, which is characterized in that
The processing transmission unit is further used for when the corresponding session of the conversation type is offline, by the corresponding meter of the session
Location information and the charge information of the charge information in session information are sent to the stand-by equipment, so that described spare
Equipment updates charging letter according to the location information and charge information received in the session information for the session being locally stored
Breath.
9. device according to claim 7 or 8, which is characterized in that
The configuration unit is further used for establishing transmission control protocol TCP number with stand-by equipment respectively for each conversation type
According to channel；
The processing transmission unit is further used for the storage organization of each conversation type or session information being sent to stand-by equipment
When, it carries in TCP message, is sent respectively by the TCP data channel that the configuration unit corresponds to conversation type foundation, with
The stand-by equipment is set to know storage organization or the corresponding conversation type of session information in the TCP message.
10. device according to claim 7 or 8, which is characterized in that
The location information of any session information of the corresponding session of any conversation type, it is corresponding to the session for the session information
The position offset of first session information.
11. device according to claim 7 or 8, which is characterized in that
The processing transmission unit, be further used for when for the corresponding session of any conversation type there are it is multiple when, according to this
The corresponding session information of session is that the session distributes session call number, and is sending the corresponding meeting of the session to the stand-by equipment
When talking about information, the session call number for session distribution is carried, so that the stand-by equipment knows what the host apparatus was sent
The corresponding session of session information.
12. device according to claim 11, which is characterized in that
Session call number is distributed if session, then the location information of any session information of the session arrives this for the session information
The position offset of the corresponding session call number of session.
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| CN105591810B (en) * | 2015-10-22 | 2019-04-12 | 新华三技术有限公司 | Backup messages sending method and equipment |
| CN106169999A (en) * | 2016-07-27 | 2016-11-30 | 杭州迪普科技有限公司 | The method and device of session backup |
| 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 |
| CN111107166B (en) * | 2019-12-31 | 2022-05-17 | 奇安信科技集团股份有限公司 | Session synchronization method, device, electronic equipment and medium |
| CN113992475B (en) * | 2021-09-23 | 2023-12-26 | 新华三信息安全技术有限公司 | Tunnel establishment method and device |
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