CN103414582A - Method and device for synchronizing main process and standby process and network device - Google Patents
Method and device for synchronizing main process and standby process and network device Download PDFInfo
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Abstract
The invention provides a method and device for synchronizing a main process and a standby process and a network device. The method comprises the steps that the main process receives a user request; N steps in the response process are carried out according to the user request, wherein i of the N steps are carried out for generating error correction messages, N is a natural number, and i is a natural number smaller than or equal to N; the synchronizing information is sent to the standby process and comprises the user request and j error correction messages generated from the i steps to enable the standby process to respond the user request, and error correction is carried out on the response process of the standby process according to the j error correction messages, wherein j is a natural number smaller than or equal to i.
Description
Technical field
The present invention relates to mechanics of communication, relate in particular to synchronous method, device and the network equipment between a kind of standby usage process.
Background technology
In data communication field, support in the network equipment of multi-process, often can receive certain service request, deal with data and return to response message by starting service processes.When the process that a certain service is provided in the network equipment only has one, in case this process breaks down, will cause the interruption of serving.Therefore, usually can be by the backup of standby process as active process.Between active process and standby process, need to carry out synchronizeing of data, namely active process backups to standby process by state and data, and active process breaks down in case so just can accomplish, standby process replaces active process that service is provided.
In prior art, can synchronize by batch backup, the mode such as back up in realtime between active process and standby process.But batch backup, because the data volume of disposable transmission is very large, can easily affect service performance, therefore unsuitable high-frequency use, certain interval of time carries out once.If but the backup interval during this period of time in active process break down, may cause Backup Data loss.So perfect standby system also needs to support to back up in realtime, namely active process state, configuration and the data that will at every turn change all send to backup process.
Between current standby usage process, synchronously usually there will be error in data; in case mistake occurs; just need active process that whole states, configuration and data are resend to standby process, can increase in this case interaction times and data volume between the standby usage process.
Summary of the invention
The invention provides synchronous method, device and the network equipment between a kind of standby usage process, effectively reduce interaction times between the standby usage process and mutual data volume.
First aspect, the embodiment of the present invention provide the synchronous method between a kind of standby usage process, comprising:
Active process receives user's request;
According to described user, ask to carry out N step of response process, be i step generation error correction information wherein, N is natural number, and i is the natural number that is less than or equal to N;
To standby process, send synchronizing information, described synchronizing information comprises described user's request, and j error correction information in the error correction information of described i step generation, so that described standby process responds described user's request, and according to a described j error correction information, response process to described standby process carries out error correction, and j is the natural number that is less than or equal to i.
Second aspect, the embodiment of the present invention provide the synchronous method between a kind of standby usage process, comprising:
Standby process receives the synchronizing information that active process sends, and described synchronizing information comprises that the user asks and j error correction information, and j is natural number;
According to described user, ask to carry out N step of response process, be i step generation error correction information wherein, N is the natural number that is more than or equal to j, and i, for being less than or equal to N, is more than or equal to the natural number of j;
In the error correction information of a described j error correction information and described i step generation, the error correction information that obtains respectively same steps as is compared, and the steps that comparative result is different are as the step of makeing mistakes, and step is carried out error correction to makeing mistakes;
After the error correction success, described standby process is carried out the synchronizing process with described active process.
The third aspect, the embodiment of the present invention provide the synchronizer between a kind of standby usage process, comprising:
Receiver module, be used to receiving user's request;
Processing module, for according to described user, asking to carry out N step of response process, be i step generation error correction information wherein, and N is natural number, and i is the natural number that is less than or equal to N;
Sending module, for to standby process, sending synchronizing information, described synchronizing information comprises described user's request, and j error correction information in the error correction information of described i step generation, so that described standby process responds described user's request, and according to a described j error correction information, the response process of described standby process being carried out to error correction, j is the natural number that is less than or equal to i.
Fourth aspect, the embodiment of the present invention provide the synchronizer between a kind of standby usage process, comprising:
Receiver module, the synchronizing information sent be used to receiving active process, described synchronizing information comprises that the user asks and j error correction information, j is natural number;
Respond module, for according to described user, asking to carry out N step of response process, be i step generation error correction information wherein, and N is the natural number that is more than or equal to j, and i, for being less than or equal to N, is more than or equal to the natural number of j;
Correction module, for the error correction information in a described j error correction information and described i step generation, the error correction information that obtains respectively same steps as is compared, and the steps that comparative result is different are as the step of makeing mistakes, and step is carried out error correction to makeing mistakes;
Synchronization module, after the error correction success, described standby process is carried out the synchronizing process with described active process.
The 5th aspect, the embodiment of the present invention provides a kind of network equipment, comprising: two kinds of synchronizers as above.
Scheme provided by the invention, in N step process of active process response user request, generate error correction information, and user's request and error correction information are sent to standby process, make standby process to respond user's request, and according to error correction information, the response process that standby process generates is carried out to error correction.The scheme that the embodiment of the present invention provides has effectively prevented the diffusion of mistake in the standby process, makes between active and standby process and can reduce interaction times and quantity, and reach the standby effect of available heat.
The accompanying drawing explanation
Synchronous method flow chart between the standby usage process that Fig. 1 provides for the embodiment of the present invention one;
Synchronous method flow chart between the standby usage process that Fig. 2 provides for the embodiment of the present invention two;
Synchronous method flow chart between the standby usage process that Fig. 3 provides for the embodiment of the present invention three;
Synchronous method flow chart between the standby usage process that Fig. 4 provides for the embodiment of the present invention four;
Synchronizer structural representation between the standby usage process that Fig. 5 provides for the embodiment of the present invention five;
Synchronizer structural representation between the standby usage process that Fig. 6 provides for the embodiment of the present invention six;
The another structural representation of the synchronizer between the standby usage process that Fig. 7 provides for the embodiment of the present invention six;
The structural representation of a kind of network equipment that Fig. 8 provides for the embodiment of the present invention.
Embodiment
Synchronous method flow chart between the standby usage process that Fig. 1 provides for the embodiment of the present invention one, as shown in Figure 1, the method comprises:
101, active process receives user's request.
Process is the basis of operating system configuration, can be understood as a program example of carrying out.And program is for realizing specific objective or solving the set that particular problem is used the command sequence of computer language compilation.A program can comprise description and the description to operating to data.Description to data refers to type and the organizational form of data, the i.e. data structure (Data structure) of wanting specific data in program.Description to operation is operating procedure, namely algorithm (Algorithm).Therefore, for user's difference request, response process also has identical or different operating procedures.The division of step is also that multiple possibility is arranged, for example will main logic branch path as a step.
102, active process is asked according to the user, carries out N step of response process, and is i step generation error correction information wherein, and wherein, N is natural number, and i is the natural number that is less than or equal to N.
The generating mode of error correction information can be, but not limited to comprise: check code (or check digit), verification and (Checksum, cyclic redundancy check (CRC) (Cyclic Redundancy Check for example, referred to as: CRC) algorithm), the hashed value of raw information (Message Digest Algorithm 5 (Message-Digest Algorithm5 for example, referred to as: the MD5/ SHA (Secure Hash Algorithm, referred to as: SHA) etc.
Active process can generate the error correction information of Overall Steps, i.e. the situation of i=N; Error correction information that also can the generating portion step, i.e. the situation of i<N, this i step can be the step of making an appointment, and can be also the random step of selecting of active process.
103, active process sends synchronizing information to standby process, this synchronizing information comprises that the user asks, and j error correction information in the error correction information (follow-up referred to as i error correction information) of i step generation, so that standby process responds user's request, and according to j error correction information, the response process of standby process being carried out to error correction, j is the natural number that is less than or equal to i.
J can equal i, also is about to i the error correction information generated and all sends to standby process; J also can be less than i, namely in i error correction information, selects the part error correction information to send to standby carrying out.This j error correction information error correction information corresponding to step that can be active process make an appointment with standby process can be also from random j the error correction information that step is corresponding of selecting i step.Therefore, also it should be noted that for synchronizing information, in synchronizing information, can also comprise j the step sign that error correction information is corresponding, sent error correction information corresponding to which step so that standby process can be recognized active process.The effect of step sign can be the error correction information that the indication standby process generates corresponding steps, or the indication standby process is from obtaining the error correction information of corresponding steps the error correction information generated.
Between active process and standby process, can adopt interprocess communication mode (as Unix domain socket) to carry out alternately.Standby process through initialization, has guaranteed that effectively standby process plays dotted state consistent with active process when creating.
The scheme that the embodiment of the present invention provides, in N step process of active process response user request, generate error correction information, and user's request and error correction information are sent to standby process, make standby process to respond user's request, and according to error correction information, the response process that standby process generates is carried out to error correction.The scheme that the embodiment of the present invention provides has effectively prevented the diffusion of mistake in the standby process, makes between active and standby process and can reduce interaction times and quantity, and reach the standby effect of available heat.
On the basis of above-mentioned execution mode, embodiment bis-as shown in Figure 2, on the basis of embodiment shown in Figure 1, the method can also comprise:
104, active process receives the synchronization request that standby process sends, and in this synchronization request, the carrying about standby process asks to carry out the sign of the unsuccessful step of error correction in response process according to the user.
If standby process can't be carried out successfully error correction to some steps, will be to the relevant correct Step Information of the unsuccessful step of this error correction of active process request, at this moment, standby process will send synchronization request to active process, and the sign of the unsuccessful step of error correction is carried in synchronization request.
105, according to the sign of the unsuccessful step of error correction, the step data of the unsuccessful step of this error correction of preserving in active process are sent to standby process, make standby process to the unsuccessful step of error correction, to carry out error correction according to the above-mentioned steps data.
Owing to only having carried the relevant Step Information of the unsuccessful step of error correction, rather than full detail, the exchanges data amount between the standby usage process effectively reduced.And, can also guarantee effectively that the mistake occurred in standby process is effectively corrected.
Synchronous method flow chart between the standby usage process that Fig. 3 provides for the embodiment of the present invention three, Fig. 1 and Fig. 2 all are described the scheme that this method provides from active process one side, and the method provided in the present embodiment three is the description of carrying out from standby process one side, as shown in Figure 3, the method comprises:
301, standby process receives the synchronizing information that active process sends, and this synchronizing information comprises that the user asks, and j error correction information, and j is natural number.
302, standby process asks to carry out N step of response process according to the user, is i step generation error correction information wherein, and N is the natural number that is more than or equal to j, and i, for being less than or equal to N, is more than or equal to the natural number of j.
303, in the error correction information of an above-mentioned j error correction information and above-mentioned i step generation, the error correction information that obtains respectively same steps as is compared, and the steps that comparative result is different are as the step of makeing mistakes, and step is carried out error correction to makeing mistakes.
The method of the step of makeing mistakes being carried out to error correction has a lot, for example in synchronizing information with the symbol data of redundancy, after specific rule and formula calculate, can correct a small amount of mistake, commonly used have error correcting code etc.
304, after the error correction success, standby process is carried out the synchronizing process with active process.
Under a kind of above-mentioned execution mode, j the error correction information that active process sends can be the error correction information that active process and standby process are arranged step, and i the step of mentioning in 302 so can comprise one or more in above-mentioned agreement step at least.
Under another execution mode, in the synchronizing information of mentioning in 301, can also comprise j the step sign that error correction information is corresponding, i the step of mentioning in 302 so comprises that at least step identifies one or more in corresponding step.
Above-mentioned two kinds of execution modes can be implemented simultaneously or implement respectively, and the application does not do restriction.
On the basis of above-mentioned execution mode, embodiment tetra-as shown in Figure 4, on the basis of embodiment shown in Figure 3, the method can also comprise:
If 305 error correction are unsuccessful, standby process sends active process to active process and sends synchronization request, in this synchronization request, carries the sign of the unsuccessful step of error correction.
306, standby process receives the step data of the unsuccessful step of error correction of active process transmission, according to the step data, the unsuccessful step of error correction is carried out to error correction, and after the error correction success, carries out the synchronizing process of standby process and active process.
Synchronizer structural representation between the standby usage process that Fig. 5 provides for the embodiment of the present invention five, as shown in Figure 5, this device comprises: receiver module 501, processing module 502 and sending module 503.Wherein, receiver module 501 is be used to receiving user's request; Processing module 502, for according to described user, asking to carry out N step of response process, is i step generation error correction information wherein, and N is natural number, and i is the natural number that is less than or equal to N; Sending module 503 is for sending synchronizing information to standby process, described synchronizing information comprises described user's request, and j error correction information in the error correction information of described i step generation, so that described standby process responds described user's request, and according to a described j error correction information, response process to described standby process carries out error correction, and j is the natural number that is less than or equal to i.
Under another execution mode, described receiver module 501 also for: receive the synchronization request that described standby process sends, in described synchronization request, carry described standby process and according to described user, ask to carry out the sign of the unsuccessful step of error correction in response process; Described sending module 503 also for: according to the sign of the unsuccessful step of described error correction, the step data of the unsuccessful step of described error correction of preserving in described active process are sent to described standby process, make described standby process to the unsuccessful step of described error correction, carry out error correction according to described step data.
On the basis of above-mentioned execution mode, in described synchronizing information, also comprise the step sign that a described j error correction information is corresponding, described step sign is used to indicate the error correction information that described standby process generates corresponding steps, perhaps, described step sign is used to indicate described standby process from the error correction information generated, obtaining the error correction information of corresponding steps.
The scheme that the embodiment of the present invention provides, in N step process of active process response user request, generate error correction information, and user's request and error correction information are sent to standby process, make standby process to respond user's request, and according to error correction information, the response process that standby process generates is carried out to error correction.The scheme that the embodiment of the present invention provides has effectively prevented the diffusion of mistake in the standby process, makes between active and standby process and can reduce interaction times and quantity, and reach the standby effect of available heat.
Synchronizer structural representation between the standby usage process that Fig. 6 provides for the embodiment of the present invention six, as shown in Figure 6, this device comprises: receiver module 601, respond module 602, correction module 603 and synchronization module 604.Wherein, the synchronizing information that receiver module 601 sends be used to receiving active process, described synchronizing information comprises that the user asks and j error correction information, j is natural number; Respond module 602, for according to described user, asking to carry out N step of response process, is i step generation error correction information wherein, and N is the natural number that is more than or equal to j, and i, for being less than or equal to N, is more than or equal to the natural number of j; Correction module 603 is for the error correction information in a described j error correction information and described i step generation, and the error correction information that obtains respectively same steps as is compared, and the steps that comparative result is different are as the step of makeing mistakes, and step is carried out error correction to makeing mistakes; After synchronization module 604 was successful for error correction, described standby process was carried out the synchronizing process with described active process.
Under a kind of execution mode, a described j error correction information is the error correction information of described active process and described standby process agreement step, and a described i step comprises one or more in described agreement step at least.
Under another execution mode, in described synchronizing information, also comprise step corresponding to described j error correction information sign, a described i step comprises that at least described step identifies one or more in corresponding step.
Above-mentioned two kinds of execution modes can be implemented also can implement respectively simultaneously, and the application does not do restriction.
Further, as shown in Figure 7, described device can also comprise: sending module 605, if unsuccessful for error correction, send synchronization request to described active process, and in described synchronization request, carry the sign of the unsuccessful step of described error correction; Described receiver module 601 is also for the step data that receive the unsuccessful step of described error correction that described active process sends; Described correction module 603 also for: according to described step data, the unsuccessful step of described error correction is carried out to error correction.
The scheme that the embodiment of the present invention provides, in N step process of active process response user request, generate error correction information, and user's request and error correction information are sent to standby process, make standby process to respond user's request, and according to error correction information, the response process that standby process generates is carried out to error correction.The scheme that the embodiment of the present invention provides has effectively prevented the diffusion of mistake in the standby process, makes between active and standby process and can reduce interaction times and quantity, and reach the standby effect of available heat.
The structural representation of a kind of network equipment that Fig. 8 provides for the embodiment of the present invention, as shown in Figure 8, this network equipment can comprise: at least one first synchronizer 801 if provided in embodiment five, and, at least one second synchronizer 802 if provided in embodiment six.
For above-mentioned whole embodiment, it should be noted that, in method provided by the invention, device and the network equipment, between active process and standby process, be not limited to man-to-man mode, can also be the form of one-to-many or many-one or multi-to-multi.Corresponding relation between active process and standby process can be as can be known in advance, can be also subsequent configuration.What in this aspect embodiment, provide is all active process and the standby process corresponded to each other, the therefore corresponding relation between certain illustrated not, but do not limit the scope of protection of present invention.
One of ordinary skill in the art will appreciate that: all or part of step that realizes above-mentioned each embodiment of the method can complete by the hardware that program command is correlated with.Aforesaid program can be stored in a computer read/write memory medium.This program, when carrying out, is carried out the step that comprises above-mentioned each embodiment of the method; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CDs.
Finally it should be noted that: above each embodiment, only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to aforementioned each embodiment, the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme that aforementioned each embodiment puts down in writing, or some or all of technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of various embodiments of the present invention technical scheme.
Claims (13)
1. the synchronous method between a standby usage process, is characterized in that, comprising:
Active process receives user's request;
According to described user, ask to carry out N step of response process, be i step generation error correction information wherein, N is natural number, and i is the natural number that is less than or equal to N;
To standby process, send synchronizing information, described synchronizing information comprises described user's request, and j error correction information in the error correction information of described i step generation, so that described standby process responds described user's request, and according to a described j error correction information, response process to described standby process carries out error correction, and j is the natural number that is less than or equal to i.
2. method according to claim 1, is characterized in that, described method also comprises:
Receive the synchronization request that described standby process sends, in described synchronization request, carry described standby process and according to described user, ask to carry out the sign of the unsuccessful step of error correction in response process;
According to the sign of the described step of makeing mistakes, the step data of the unsuccessful step of described error correction of preserving in described active process are sent to described standby process, make described standby process to the unsuccessful step of described error correction, carry out error correction according to described step data.
3. method according to claim 1 and 2, it is characterized in that, in described synchronizing information, also comprise the step sign that a described j error correction information is corresponding, described step sign is used to indicate the error correction information that described standby process generates corresponding steps, perhaps, described step sign is used to indicate described standby process from the error correction information generated, obtaining the error correction information of corresponding steps.
4. the synchronous method between a standby usage process, is characterized in that, comprising:
Standby process receives the synchronizing information that active process sends, and described synchronizing information comprises that the user asks and j error correction information, and j is natural number;
According to described user, ask to carry out N step of response process, be i step generation error correction information wherein, N is the natural number that is more than or equal to j, and i, for being less than or equal to N, is more than or equal to the natural number of j;
In the error correction information of a described j error correction information and described i step generation, the error correction information that obtains respectively same steps as is compared, and the steps that comparative result is different are as the step of makeing mistakes, and step is carried out error correction to makeing mistakes;
After the error correction success, described standby process is carried out the synchronizing process with described active process.
5. method according to claim 4, is characterized in that, a described j error correction information is the error correction information of described active process and described standby process agreement step, and a described i step comprises one or more in described agreement step at least; And/or, in described synchronizing information, also comprise step corresponding to described j error correction information sign, a described i step comprises that at least described step identifies one or more in corresponding step.
6. according to the described method of claim 4 or 5, it is characterized in that, described method also comprises:
If error correction is unsuccessful, described standby process sends synchronization request to described active process, in described synchronization request, carries the sign of the unsuccessful step of error correction;
Receive the step data of the unsuccessful step of described error correction of described active process transmission, according to described step data, the unsuccessful step of described error correction is carried out to error correction.
7. the synchronizer between a standby usage process, is characterized in that, comprising:
Receiver module, be used to receiving user's request;
Processing module, for according to described user, asking to carry out N step of response process, be i step generation error correction information wherein, and N is natural number, and i is the natural number that is less than or equal to N;
Sending module, for to standby process, sending synchronizing information, described synchronizing information comprises described user's request, and j error correction information in the error correction information of described i step generation, so that described standby process responds described user's request, and according to a described j error correction information, the response process of described standby process being carried out to error correction, j is the natural number that is less than or equal to i.
8. device according to claim 7, it is characterized in that, described receiver module also for: receive the synchronization request that described standby process sends, in described synchronization request, carry described standby process and according to described user, ask to carry out the sign of the unsuccessful step of error correction in response process;
Described sending module also for: according to the sign of the unsuccessful step of described error correction, the step data of the unsuccessful step of described error correction of preserving in described active process are sent to described standby process, make described standby process to the unsuccessful step of described error correction, carry out error correction according to described step data.
9. according to the described device of claim 7 or 8, it is characterized in that, in described synchronizing information, also comprise the step sign that a described j error correction information is corresponding, described step sign is used to indicate the error correction information that described standby process generates corresponding steps, perhaps, described step sign is used to indicate described standby process from the error correction information generated, obtaining the error correction information of corresponding steps.
10. the synchronizer between a standby usage process, is characterized in that, comprising:
Receiver module, the synchronizing information sent be used to receiving active process, described synchronizing information comprises that the user asks and j error correction information, j is natural number;
Respond module, for according to described user, asking to carry out N step of response process, be i step generation error correction information wherein, and N is the natural number that is more than or equal to j, and i, for being less than or equal to N, is more than or equal to the natural number of j;
Correction module, for the error correction information in a described j error correction information and described i step generation, the error correction information that obtains respectively same steps as is compared, and the steps that comparative result is different are as the step of makeing mistakes, and step is carried out error correction to makeing mistakes;
Synchronization module, after the error correction success, described standby process is carried out the synchronizing process with described active process.
11. device according to claim 10, is characterized in that, a described j error correction information is the error correction information of described active process and described standby process agreement step, and a described i step comprises one or more in described agreement step at least;
And/or, in described synchronizing information, also comprise step corresponding to described j error correction information sign, a described i step comprises that at least described step identifies one or more in corresponding step.
12. according to the described device of claim 10 or 11, it is characterized in that,
Described device also comprises:
Sending module, if unsuccessful for described correction module error correction, send synchronization request to described active process, in described synchronization request, carries the sign of the unsuccessful step of described error correction;
Described receiver module is also for the step data that receive the unsuccessful step of described error correction that described active process sends;
Described correction module also for: unsuccessful to described error correction according to described step data is that step is carried out error correction.
13. a network equipment, is characterized in that, comprising:
At least one is as arbitrary described synchronizer in claim 7 to 9, and at least one is as arbitrary described synchronizer in claim 10 to 12.
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| CN107992368A (en) * | 2017-11-15 | 2018-05-04 | 国家计算机网络与信息安全管理中心 | Method for interchanging data and system between a kind of multi-process |
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