CN103530420A - Data file dynamic update method and device - Google Patents
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Abstract
The invention relates to a data file dynamic update method and device. The method comprises storing updated data files into a second storage space when data file update is required and storing before-update data files into a first storage space; changing the storage address of preset latest data files from an address of the first storage space to an address of the second storage space; when certain process accesses the data files, searching and accessing the updated data files stored in the second storage space according to the latest storage address of the data files. The data file dynamic update method and device achieves the technical effects of dynamically loading data files during the normal operation process of databases.
Description
Technical field
The present invention relates to network communications technology field, be specifically related to a kind of dynamic updating method and device of data file.
Background technology
At present, the range of application of database is more and more extensive, by database, can effectively manage real-life data message.Along with the variation of actual conditions, the data file for storing data information in database also will be upgraded often, with practical requirement.
For example, IPQuery storehouse is a kind of conventional PHP extending database, has stored the information of the aspects such as relevant address, weather, thereby the inquiry of relevant information can be provided for user in data file wherein.In order to ensure correctness and the promptness of Query Information, need to there be special O&M personnel that the data file in IPQuery storehouse is safeguarded and upgraded.
At present, IPQuery storehouse is loaded into the data in data file in internal memory by certain form when initial start-up, and is externally provided for the IPQuery interface of inquiry, for example, for other processes (PHP process), calls.When data file need to be upgraded, can only first close IPQuery storehouse, and cover original data file by the data file after upgrading, restart afterwards IPQuery storehouse, in the process of restarting, first to delete original data file in internal memory, then the data file after upgrading is loaded in internal memory, thereby realize the renewal of the data file in IPQuery storehouse.Yet, between the time point that the time point of closing from IPQuery storehouse to the data file upgrading has loaded during this period of time in, will cause the request of access that IPQuery storehouse cannot normal process user, thereby make troubles to user.
In addition, in said process, also may restart because accidental cause causes IPQuery storehouse to fail, thereby this storehouse cannot normally be used.For this reason, also need to be by the loading result of O&M personnel real-time follow-up data file, once occur that failed situation also will process separately, thus a large amount of O&M costs increased.
Summary of the invention
In view of the above problems, the present invention has been proposed to a kind of dynamic updating method and device of the data file that overcomes the problems referred to above or address the above problem are at least in part provided.
According to one aspect of the present invention, the dynamic updating method that a kind of data file is provided, comprising: when data file need to be upgraded, store the data file after upgrading into second storage space, wherein, the data file before renewal is stored in the first storage space; By the memory address of default latest data file, from the address change of the first storage space, be the address of the second storage space; When having process visit data file, according to the memory address of default latest data file, search and access the data file after the renewal of storing in the second storage space.
Alternatively, the memory address of default latest data file represents by the first variable, and the step that is the address of the second storage space by the memory address of default latest data file from the address change of the first storage space comprises: by the value of the first variable, from the address change of the first storage space, be the address of the second storage space.
Alternatively, according to the memory address of latest data file, the step of searching and accessing the data file after the renewal of storing in the second storage space comprises: the value of obtaining the first variable, the value of the first variable and the bivariate value of local storage are compared, wherein, the second variable is for representing the memory address of the data file of current use; If comparative result is different, first the value of the first variable is assigned to the second variable, then searches and access the data file in the memory address that the second variable is corresponding.
Alternatively, the second variable is global variable.
Alternatively, data file is IPQuery data file, and process is PHP process.
According to another aspect of the present invention, a kind of device that dynamically updates of data file is provided, comprising: storage unit, data file is suitable for when need to be upgraded, store the data file after upgrading into second storage space, wherein, the data file before renewal is stored in the first storage space; Changing unit, being suitable for the memory address of default latest data file is the address of the second storage space from the address change of the first storage space; Search unit, be suitable for, when having process visit data file, according to the memory address of default latest data file, searching and access the data file after the renewal of storing in the second storage space.
Alternatively, the memory address of default latest data file represents by the first variable, and changing unit is for being the address of the second storage space by the value of the first variable from the address change of the first storage space.
Alternatively, search unit for: obtain the value of the first variable, the value of the first variable and the bivariate value of local storage are compared, wherein, the second variable is for representing the memory address of the data file of current use; If comparative result is different, first the value of the first variable is assigned to the second variable, then searches and access the data file in the memory address that the second variable is corresponding.
Alternatively, the second variable is global variable.
Alternatively, data file is IPQuery data file, and process is PHP process.
In the dynamic updating method and device of data file provided by the invention, data file before and after upgrading is stored into respectively in different storage spaces, and by the memory address of default latest data file, come the position of the data file after identification renewal, thereby process can have access in this position the data file after renewal.Because the storage space of the data file before and after upgrading is different, thereby avoided must first deleting the data file before the renewal of storing in internal memory in prior art, could in same internal memory, load afterwards the defect of the data file after upgrading, and cause thus restart database and relevant O&M problem.By dynamic updating method and the device of data file provided by the invention, realized the technique effect of dynamic load data file in the process of the normal operation of database.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of instructions, and for above and other objects of the present invention, feature and advantage can be become apparent, below especially exemplified by the specific embodiment of the present invention.
Accompanying drawing explanation
By reading below detailed description of the preferred embodiment, various other advantage and benefits will become cheer and bright for those of ordinary skills.Accompanying drawing is only for the object of preferred implementation is shown, and do not think limitation of the present invention.And in whole accompanying drawing, by identical reference symbol, represent identical parts.In the accompanying drawings:
The method flow diagram of the dynamic updating method of the data file providing according to the embodiment of the present invention is provided Fig. 1;
Fig. 2 shows the process flow diagram of the dynamic updating method of the IPQuery data file that the preferred embodiment of the present invention provides;
Fig. 3 shows the method flow diagram of the IPQuery data file after access renewal in the preferred embodiment of the present invention; And
The structural representation that dynamically updates device of the data file providing according to the embodiment of the present invention is provided Fig. 4.
Embodiment
Exemplary embodiment of the present disclosure is described below with reference to accompanying drawings in more detail.Although shown exemplary embodiment of the present disclosure in accompanying drawing, yet should be appreciated that and can realize the disclosure and the embodiment that should do not set forth limits here with various forms.On the contrary, it is in order more thoroughly to understand the disclosure that these embodiment are provided, and can by the scope of the present disclosure complete convey to those skilled in the art.
The embodiment of the present invention provides a kind of dynamic updating method and device of data file, must restart database, and in restarting process, cannot process the problem of user's request of access while upgrading data file in order to solve in prior art.
Fig. 1 shows the process flow diagram of the dynamic updating method of the data file that the embodiment of the present invention provides.As shown in Figure 1, the method originates in step S110, in step S110, when data file need to be upgraded, stores the data file after upgrading into second storage space, and wherein, the data file before renewal is stored in the first storage space.
Next, in step S120, by the memory address of default latest data file, from the address change of above-mentioned the first storage space, be the address of above-mentioned the second storage space.
Wherein, the memory address of default latest data file can represent by the first variable, now, the operation that is the address of above-mentioned the second storage space by the memory address of default latest data file from the address change of above-mentioned the first storage space in step S120 is to realize by the address that is above-mentioned the second storage space from the address change of above-mentioned the first storage space by the value of above-mentioned the first variable.
Finally, in step S130, when having process to access this data file, according to the memory address of latest data file default in step S120, search and access the data file after the renewal of storing in above-mentioned the second storage space.
Particularly, the implementation of step S130 comprises: obtain the value of above-mentioned the first variable, the value of above-mentioned the first variable and the bivariate value of local storage are compared, wherein, the second variable is for representing the memory address of the data file of current use; If comparative result is different, first the value of above-mentioned the first variable is assigned to above-mentioned the second variable, make bivariate value identical with the value of the first variable, and then search and access the data file in the memory address that the second variable is corresponding, thereby guarantee that the data file of current use is up-to-date data file.
Alternatively, the second above-mentioned variable is a global variable, to guarantee, within the whole service cycle of process, can use.
As can be seen here, in the dynamic updating method of the data file providing in the embodiment of the present invention, data file before and after upgrading is stored into respectively in different storage spaces, and by the memory address of default latest data file, come the position of the data file after identification renewal, thereby process can have access in this position the data file after renewal.Avoided thus must first deleting the data file before the renewal of storing in internal memory in prior art, could in same internal memory, load afterwards the defect of the data file after upgrading, and cause thus restart database and relevant O&M problem.
The dynamic updating method of the data file that the embodiment of the present invention provides can be widely used in the data file in types of databases.In the preferred embodiments of the present invention described below, by take the dynamic updating process of IPQuery data file, be introduced as example.But those skilled in the art can understand, the dynamic updating method of data file provided by the invention can also be applied to other kinds data file.
Fig. 2 shows the process flow diagram of the dynamic updating method of the IPQuery data file that the preferred embodiment of the present invention provides.As shown in Figure 2, the method originates in step S210, in step S210, is pre-created variable F_KEY.
Wherein, the effect of variable F_KEY is: the memory address of indication latest data file.During specific implementation, can by the value value of variable F_KEY, be directly the memory address of latest data file.Or, can be also a default memory address of acting on behalf of shared drive by the value value of variable F_KEY, then, at this, act on behalf of the memory address of storing latest data file in shared drive.After adopting in the present embodiment, a kind of mode realizes.
Wherein, acting on behalf of shared drive refers to: for shared drive provides the memory headroom of agency service.Particularly, in embodiments of the present invention, data file before and after upgrading is stored in respectively in different shared drives, and the use by shared drive can make a plurality of PHP processes access same memory headroom simultaneously, take and realizes the object of simultaneously serving for a plurality of PHP processes.But, because the data file before and after upgrading is stored in respectively in different shared drives, therefore in the present invention, for what the PHP process of visit data file can clearly be known store in which shared drive, be, up-to-date data file and introduced the concept of acting on behalf of shared drive.That is to say, act on behalf of shared drive each shared drive in the present invention is managed, the PHP process of visit data file needs first by acting on behalf of shared drive, to get the address of the shared drive of current storage latest data file.And, adopt the advantage of acting on behalf of shared drive to be also: can in acting on behalf of shared drive, store other relevant informations (for example length information) of latest data file, thereby can bring for user's access more facility.
Next, when needs upgrade data file, perform step S220, in step S220, search indicated the acting on behalf of shared drive and whether exist of variable F_KEY, if exist, illustrate that IPQuery database starts, continue execution step S230; If do not exist, illustrate that IPQuery database is not activated, thereby do not need to adopt the method in the present invention to dynamically update data file, directly quit a program.
In step S230, by acting on behalf of shared drive, be loaded in the process space of current process (carrying out the process that dynamically updates this operation of data file), make current process have authority to modify to the storage content of acting on behalf of in shared drive.
Then, in step S240, apply for the second shared drive, and the data file after upgrading is loaded in the second shared drive.As can be seen here, the second shared drive is used for the data file after storage update, and its address is different from the address of corresponding the first shared drive of data file before renewal.During specific implementation, can first by function f tok, create at random variable B_KEY(is B_KEY=ftok()), then by variable B_KEY, indicated the address of the second shared drive.
Finally, in step S250, the size of the address of the second shared drive (being the value of variable B_KEY) and the second shared drive is write and is acted on behalf of in shared drive, and in current process unmounter agent shared drive, to exit current process to acting on behalf of the retouching operation of shared drive.
By step above, just completed the dynamic updating process of IPQuery data file.In addition, when need the data file in the second shared drive to upgrade next time again, can apply for again the 3rd shared drive ... or, also can first delete the data file in the first shared drive, then the data file after again upgrading is stored in the first shared drive, and by the address of acting on behalf of the address of storing in shared drive and being revised as the first shared drive, like this, by being used alternatingly of the first shared drive and the second shared drive, only need two shared drives can realize the object repeatedly dynamically updating, thereby realize the effect of saving storage space.
Fig. 3 shows the method flow diagram of the IPQuery data file after access renewal in the preferred embodiment of the present invention.As shown in Figure 3, when PHP process will be accessed IPQuery data file, first, execution step S310, in step S310, checks the validity of SDK parameter, to filter out Invalid parameter wherein, and the efficiency of raising program operation.Wherein, the Main Function of execution step S310 is the operational efficiency of program to be optimized, and therefore, step S310 is not an essential step, just a preferred step.
In step S320, when PHP process transfer IPQuery interface, can get the address of acting on behalf of shared drive by above-mentioned F_KEY variable, and conduct interviews to acting on behalf of the content of storing in shared drive.In this step, PHP process will be acted on behalf of the content of storing in shared drive (memory address of the data file after upgrading) assignment to default T_KEY variable.
In addition, in each PHP process, also pre-stored have a global variable G_KEY, is used for representing the memory address of the data file of the current use of PHP process.Therefore,, in step S320, whether PHP advance ratio equates with the value of G_KEY variable compared with T_KEY variable.If equated, illustrate that the data file in the corresponding shared drive of G_KEY variable has been up-to-date data file, thereby execution step S340, directly access the data file in the corresponding shared drive of G_KEY variable.If unequal, illustrate that the data file in the corresponding shared drive of G_KEY variable is not up-to-date data file, thereby execution step S330, in step S330, first unload the corresponding shared drive of G_KEY variable, then the value of T_KEY variable is assigned to G_KEY variable, reloads the corresponding shared drive of G_KEY variable, to have access to up-to-date data file.
In this preferred embodiment, the implementation of the PHP process of take access IPQuery data file is introduced as example, those skilled in the art can understand, and when other non-PHP process is accessed IPQuery data file, also can adopt method provided by the invention.
The IPQuery data file dynamic updating method providing by this preferred embodiment, the heat that can realize IPQuery data file loads, because loading, heat needn't restart IPQuery database, so the problem of successfully having avoided user cannot access, thereby improved user's experience satisfaction within the time period of restarting.In addition, from the angle of O&M, due to the operation of having avoided restarting, thereby also stopped the O&M problem that unsuccessfully caused by restarting.
Fig. 4 shows the structural drawing that dynamically updates device of the data file that the embodiment of the present invention provides.As shown in Figure 4, this device comprises: storage unit 41, changing unit 42 and search unit 43.
Wherein, when storage unit 41 need to be upgraded when data file, store the data file after upgrading into second storage space, wherein, the data file before renewal is stored in the first storage space.
Changing unit 42 is the address of the second storage space by the memory address of default latest data file from the address change of the first storage space.
Wherein, the memory address of default latest data file represents by the first variable, and changing unit 42 is for being the address of the second storage space by the value of the first variable from the address change of the first storage space.
Search unit 43 when having process visit data file, according to the memory address of default latest data file, search and access the data file after the renewal of storing in the second storage space.
Describedly search the value that unit 43 obtains the first variable, the value of the first variable and the bivariate value of local storage are compared, wherein, the second variable is for representing the memory address of the data file of current use; If comparative result is different, first the value of the first variable is assigned to the second variable, then searches and access the data file in the memory address that the second variable is corresponding.Alternatively, the second variable is wherein global variable.
Alternatively, above-mentioned data file is IPQuery data file, and above-mentioned process is PHP process.
About above-mentioned storage unit 41, changing unit 42 and the specific works process of searching unit 43, can distinguish the description of appropriate section in step S110, step S120 in reference method embodiment and step S130, repeat no more herein.
In the dynamic updating method and device of data file provided by the invention, data file before and after upgrading is stored into respectively in different storage spaces, and by the memory address of default latest data file, come the position of the data file after identification renewal, thereby process can have access in this position the data file after renewal.Because the storage space of the data file before and after upgrading is different, thereby avoided must first deleting the data file before the renewal of storing in internal memory in prior art, could in same internal memory, load afterwards the defect of the data file after upgrading, and cause thus restart database and relevant O&M problem.By dynamic updating method and the device of data file provided by the invention, realized the technique effect of dynamic load data file in the process of the normal operation of database.
The algorithm providing at this is intrinsic not relevant to any certain computer, virtual system or miscellaneous equipment with demonstration.Various general-purpose systems also can with based on using together with this teaching.According to description above, it is apparent constructing the desired structure of this type systematic.In addition, the present invention is not also for any certain programmed language.It should be understood that and can utilize various programming languages to realize content of the present invention described here, and the description of above language-specific being done is in order to disclose preferred forms of the present invention.
In the instructions that provided herein, a large amount of details have been described.Yet, can understand, embodiments of the invention can not put into practice in the situation that there is no these details.In some instances, be not shown specifically known method, structure and technology, so that not fuzzy understanding of this description.
Similarly, be to be understood that, in order to simplify the disclosure and to help to understand one or more in each inventive aspect, in the above in the description of exemplary embodiment of the present invention, each feature of the present invention is grouped together into single embodiment, figure or sometimes in its description.Yet, the method for the disclosure should be construed to the following intention of reflection: the present invention for required protection requires than the more feature of feature of clearly recording in each claim.Or rather, as reflected in claims below, inventive aspect is to be less than all features of disclosed single embodiment above.Therefore, claims of following embodiment are incorporated to this embodiment thus clearly, and wherein each claim itself is as independent embodiment of the present invention.
Those skilled in the art are appreciated that and can the module in the equipment in embodiment are adaptively changed and they are arranged in one or more equipment different from this embodiment.Module in embodiment or unit or assembly can be combined into a module or unit or assembly, and can put them into a plurality of submodules or subelement or sub-component in addition.At least some in such feature and/or process or unit are mutually repelling, and can adopt any combination to combine all processes or the unit of disclosed all features in this instructions (comprising claim, summary and the accompanying drawing followed) and disclosed any method like this or equipment.Unless clearly statement in addition, in this instructions (comprising claim, summary and the accompanying drawing followed) disclosed each feature can be by providing identical, be equal to or the alternative features of similar object replaces.
In addition, those skilled in the art can understand, although embodiment more described herein comprise some feature rather than further feature included in other embodiment, the combination of the feature of different embodiment means within scope of the present invention and forms different embodiment.For example, in the following claims, the one of any of embodiment required for protection can be used with array mode arbitrarily.
All parts embodiment of the present invention can realize with hardware, or realizes with the software module moved on one or more processor, or realizes with their combination.It will be understood by those of skill in the art that and can use in practice microprocessor or digital signal processor (DSP) to realize the some or all functions according to the some or all parts in the device of the embodiment of the present invention.The present invention for example can also be embodied as, for carrying out part or all equipment or device program (, computer program and computer program) of method as described herein.Realizing program of the present invention and can be stored on computer-readable medium like this, or can there is the form of one or more signal.Such signal can be downloaded and obtain from internet website, or provides on carrier signal, or provides with any other form.
It should be noted above-described embodiment the present invention will be described rather than limit the invention, and those skilled in the art can design alternative embodiment in the situation that do not depart from the scope of claims.In the claims, any reference symbol between bracket should be configured to limitations on claims.Word " comprises " not to be got rid of existence and is not listed as element or step in the claims.Being positioned at word " " before element or " one " does not get rid of and has a plurality of such elements.The present invention can be by means of including the hardware of some different elements and realizing by means of the computing machine of suitably programming.In having enumerated the unit claim of some devices, several in these devices can be to carry out imbody by same hardware branch.The use of word first, second and C grade does not represent any order.Can be title by these word explanations.
Claims (10)
1. a dynamic updating method for data file, comprising:
When data file need to be upgraded, store the data file after upgrading into second storage space, wherein, the data file before renewal is stored in the first storage space;
By the memory address of default latest data file, from the address change of described the first storage space, be the address of described the second storage space;
When having process to access described data file, according to the memory address of described default latest data file, search and access the data file after the renewal of storing in described the second storage space.
2. the method for claim 1, wherein, the memory address of described default latest data file represents by the first variable, and the described step that is the address of described the second storage space from the address change of described the first storage space by the memory address of default latest data file comprises: by the value of described the first variable, from the address change of described the first storage space, be the address of described the second storage space.
3. method as claimed in claim 2, wherein, described according to the memory address of latest data file, the step of searching and accessing the data file after the renewal of storing in described the second storage space comprises:
Obtain the value of described the first variable, the value of described the first variable and the bivariate value of local storage are compared, wherein, described the second variable is for representing the memory address of the data file of current use;
If comparative result is different, first the value of described the first variable is assigned to described the second variable, then searches and access the data file in the memory address that described the second variable is corresponding.
4. method as claimed in claim 3, wherein, described the second variable is global variable.
5. the method as described in as arbitrary in claim 1-4, wherein, described data file is IPQuery data file, described process is PHP process.
Data file dynamically update a device, comprising:
Storage unit, is suitable for when data file need to be upgraded, and stores the data file after upgrading into second storage space, and wherein, the data file before renewal is stored in the first storage space;
Changing unit, being suitable for the memory address of default latest data file is the address of described the second storage space from the address change of described the first storage space;
Search unit, be suitable for when having process to access described data file, according to the memory address of described default latest data file, search and access the data file after the renewal of storing in described the second storage space.
7. device as claimed in claim 6, wherein, the memory address of described default latest data file represents by the first variable, and described changing unit is for being the address of described the second storage space by the value of described the first variable from the address change of described the first storage space.
8. device as claimed in claim 7, wherein, described in search unit for:
Obtain the value of described the first variable, the value of described the first variable and the bivariate value of local storage are compared, wherein, described the second variable is for representing the memory address of the data file of current use;
If comparative result is different, first the value of described the first variable is assigned to described the second variable, then searches and access the data file in the memory address that described the second variable is corresponding.
9. device as claimed in claim 8, wherein, described the second variable is global variable.
10. the device as described in as arbitrary in claim 6-9, wherein, described data file is IPQuery data file, described process is PHP process.
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| CN106936907A (en) * | 2017-03-09 | 2017-07-07 | 腾讯科技（深圳）有限公司 | A kind of document handling method, logical server, access server and system |
| CN107066303A (en) * | 2017-05-04 | 2017-08-18 | 深圳市欧瑞博电子有限公司 | Firmware comparison method and device |
| CN108304201B (en) * | 2017-09-14 | 2022-02-22 | 腾讯科技（深圳）有限公司 | Object updating method, device and equipment |
| CN108304201A (en) * | 2017-09-14 | 2018-07-20 | 腾讯科技（深圳）有限公司 | Object updating method, device and equipment |
| CN107908798A (en) * | 2017-12-20 | 2018-04-13 | 浙江煮艺文化科技有限公司 | The processing method and system of a kind of data file |
| CN109710287A (en) * | 2018-12-07 | 2019-05-03 | 中国移动通信集团有限公司 | A kind of hot update method, device and computer storage medium |
| CN109710287B (en) * | 2018-12-07 | 2022-04-29 | 中国移动通信集团有限公司 | Hot updating method, device and computer storage medium |
| CN111290773A (en) * | 2020-03-12 | 2020-06-16 | 深圳Tcl新技术有限公司 | System upgrading method, device and readable storage medium |
| CN111290773B (en) * | 2020-03-12 | 2024-01-19 | 深圳Tcl新技术有限公司 | System upgrade method, device and readable storage medium |
| WO2023051504A1 (en) * | 2021-09-29 | 2023-04-06 | 华为技术有限公司 | Application upgrading method and apparatus, network card, and device |
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