CN105930234A - Traceability information-based data reconstruction system and method - Google Patents
Traceability information-based data reconstruction system and method Download PDFInfo
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- CN105930234A CN105930234A CN201610351831.2A CN201610351831A CN105930234A CN 105930234 A CN105930234 A CN 105930234A CN 201610351831 A CN201610351831 A CN 201610351831A CN 105930234 A CN105930234 A CN 105930234A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
- G06F11/1446—Point-in-time backing up or restoration of persistent data
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/10—File systems; File servers
- G06F16/11—File system administration, e.g. details of archiving or snapshots
- G06F16/122—File system administration, e.g. details of archiving or snapshots using management policies
- G06F16/125—File system administration, e.g. details of archiving or snapshots using management policies characterised by the use of retention policies
Abstract
The invention discloses a traceability information-based data reconstruction system and method. The method comprises the following steps: traceability collection, traceability query, factor analysis, reconstruction execution and recovery process, wherein the step of traceability collection is carrying out calling through a monitoring system, converting the obtained system calling information into traceability information and storing the traceability information in a traceability database; the step of traceability query is querying necessary traceability information from the traceability database and carrying out preparation on data reconstruction; the step of factor analysis is carrying out factor analysis on files to be reconstructed, judging whether the files to be reconstructed comprise redundant files or not, and carrying out deletion, covering or renaming on the redundant files; the step of reconstruction execution is obtaining a reconstruction sequence according to the traceability information and carrying out data reconstruction according to the reconstruction sequence; and the step of recovery process is deleting the unnecessary files after the reconstruction and recovering the files with relatively high version. According to the system and method provided by the invention, the damaged or lost files can be correctly reconstructed by using traceability data, and the reliability of the system can be strengthened.
Description
Technical field
The invention belongs to technical field of computer data storage, more particularly, to one based on tracing to the source
The data reconstruction system and method for information.
Background technology
In Computer Storage field, memory reliability is always an important problem.Deposit at present
In a series of solution, such as journaling techniques, snapshot, backup and correcting and eleting codes；These technology are true
Protect the safety of whole system or memory reliability, movable by recording disc, replicating original data or
Calculation of integrity check number prevents it from collapsing according to this.
On the other hand, people become more concerned with the reconstruction of individual data object；With recovery whole system phase
Ratio, the content rebuilding a file or one vital document of recovery is one very common requirement.Existing
A kind of data re-establishing method, based on correcting and eleting codes, has an advantage in that the high efficiency of reconstruction performance, the most independent
In any software being arranged on disk；Another kind of widely used technology is log-structured file system,
Usage log file record disk activity, can rebuild it in the case of a system crash；Snapshot is then
By " i.e. write and i.e. copy " technology, it is ensured that the safety of system；Said method is more focused on whole system
The safety of system, from a more fine-grained angle, it is considered to the safety of single file.
The information of tracing to the source can accurately describe the origin of a data object, and display creates data pair
The details of elephant, and disclose the dependency between different object, can be used to debugging routine, disclose system
Basic reason under fire, and accelerate WDS, it is also possible to it is used as restoring the weight of experimental data
Want clue, and playback generation process rebuilds personal document.Prior art utilizes at scientific workflow
The intermediate data of middle generation, reduces the expense of storage and improves the time recalculated, and also has some to lead to
Cross and use the balance traced to the source between information searching storage and calculating, but this kind of research is absorbed in use and is traced to the source
With recalculate improve the efficiency of whole system rather than lay particular emphasis on reconstruction of tracing to the source.
Summary of the invention
For disadvantages described above or the Improvement requirement of prior art, the invention provides a kind of based on letter of tracing to the source
The data reconstruction system and method for breath, its object is to the utilization information of tracing to the source and carries out data reconstruction, fill up
The technological gap that single file process is rebuild.
For achieving the above object, according to one aspect of the present invention, it is provided that a kind of based on the information of tracing to the source
Data reconstruction system, this system include tracing to the source information collection module, data transmission blocks, data connect
Receive module, trace to the source information storage module and data reconstruction module；
Wherein, information collection module of tracing to the source is for hooking system service call, and produces information of tracing to the source, and traces to the source
Information includes the dependence between file object, process object and file and process；Data send
Module is for being sent to data reception module by the above-mentioned information of tracing to the source；Data reception module is for receiving
State the information of tracing to the source and be forwarded to information storage module of tracing to the source；Trace to the source information storage module for letter of tracing to the source
Breath is stored in data base；Data reconstruction module is for rebuilding file according to information of tracing to the source.
Preferably, above-mentioned data reconstruction system based on the information of tracing to the source, deposit the data base of the information of tracing to the source
Including identity database, ancestral data storehouse；
Wherein, identity database is used for conservation object name；Ancestral data storehouse is between conservation object
Dependence.
Preferably, above-mentioned data reconstruction system based on the information of tracing to the source, its information collection module bag of tracing to the source
Include interception unit, information generating unit of tracing to the source and detector unit；
Interception unit is used for hooking system service call information, and transmits this information to information generation list of tracing to the source
Unit；Information generating unit of tracing to the source is for being converted to, by system call information, the information of tracing to the source；Detector unit is sentenced
Whether disconnected information of tracing to the source repeats or constitutes ring, if repeating just to abandon, if constituting ring, uses circulation
Algorithm is avoided to avoid information cyclization of tracing to the source.
For realizing the object of the invention, according to another aspect of the present invention, it is provided that a kind of based on tracing to the source
The data re-establishing method of information, comprises the steps:
(1) hooking system service call, calls generation according to system and traces to the source information；Wherein, trace back source packet
Include the dependence between file object, process object and file and process；Process object include into
The input parameter of journey, environmental variable, process title or identifier；File object includes filename, joint
Period, side-play amount and the detailed byte in write file；
(2) information of tracing to the source is stored the data base that traces to the source；And divide for each process object or file object
Join numbering；This numbering is used for unique identification process object or file object
(3) when receiving the request of tracing to the source, tracing to the source corresponding to query request object from the data base that traces to the source
Information, including the dependency relationships between this object and process and the attribute information of object；
(4) inquire about the data base that traces to the source, the file intending rebuilding is carried out factorial analysis, it is judged that intend reconstruction
No in file there is unnecessary file, if it is not, then enter step (5)；The most then according to unnecessary file
Type, unnecessary file is covered, delete or renaming process；
Wherein, unnecessary file refer to intend rebuilding file relevant, except loss file or impaired literary composition
File outside part；
(5) according to the ancestral data of lane database of tracing to the source, backtracking is lost or the generation process of damaged files,
The information reconstruction loss obtained according to backtracking or impaired file.
Preferably, above-mentioned data re-establishing method based on the information of tracing to the source, after its step (5), also wraps
Including recovering step, the file unrelated with loss or impaired file process of reconstruction generated is deleted；With
And by rebuild generate lowest version file access pattern be highest version file；Wherein, recover to refer to delete low version
Presents, by the operation of highest version file RNTO this document.
Preferably, above-mentioned data re-establishing method based on the information of tracing to the source, the data base that traces to the source includes identity number
According to storehouse and ancestral data storehouse；
In step (2), process object and file object are stored identity database；Process will be described
And the information of dependence stores ancestral data storehouse between file.
Preferably, above-mentioned data re-establishing method based on the information of tracing to the source, in step (4), to unnecessary literary composition
The processing method of part, specific as follows:
File identical before and after unnecessary file is to rebuild, then use unnecessary file Overwrite existing files；
Non-existent file before unnecessary file is to rebuild, then delete unnecessary file；
There is before unnecessary file is to rebuild the file of more highest version, then unnecessary file is heavily ordered
Name processes.
Preferably, above-mentioned data re-establishing method based on the information of tracing to the source, the data reconstruction of its step (5)
Process includes following sub-step:
(5.1) on disk, the ancestral data in chain of tracing to the source is found, it is judged that on disk, whether stored this
Ancestral data, the most then enter step (5.2)；
If it is not, then regenerate ancestral data according to the information of tracing to the source, and enter step (5.2)；
(5.2) according to above-mentioned ancestral data, backtracking is lost or the generation process of damaged files, according to returning
The reconstruction sequence obtained of tracing back rebuilds loss or impaired file.
In general, by the contemplated above technical scheme of the present invention compared with prior art, it is possible to
Obtain following beneficial effect:
The data re-establishing method based on the information of tracing to the source that the present invention provides, is stored in data by the information of tracing to the source
In storehouse, improve information inquiry speed of tracing to the source；Compared with existing journaling techniques, journaling techniques exists
When scanning the journal file deleted or lose, the longest；And the method that the present invention provides, from data
Ku Li inquiry is traced to the source, and in hgher efficiency, speed is faster；Compared with existing snapping technique, due to snapshot
The time point that uses of technology depends on using the user of snapping technique, thus uses snapping technique to lose
File access pattern uncontrollable to latest edition；And due to the fact that the information of tracing to the source is stored in data base,
The search efficiency of information of tracing to the source is higher, and speed faster, thus has more preferable reconstruction performance.
Accompanying drawing explanation
Fig. 1 is the flow chart of the data re-establishing method based on the information of tracing to the source that the embodiment of the present invention provides；
Fig. 2 is the most affected exemplary plot of relevant document；
Fig. 3 be rebuild during process interact exemplary plot.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing
And embodiment, the present invention is further elaborated.Should be appreciated that described herein specifically
Embodiment only in order to explain the present invention, is not intended to limit the present invention.Additionally, it is disclosed below
Just may be used as long as technical characteristic involved in each embodiment of the present invention does not constitutes conflict each other
To be mutually combined.
A kind of based on the information of tracing to the source the data reconstruction system that embodiment provides, including information of tracing to the source
Module, data transmission blocks, data reception module, trace to the source information storage module and data reconstruction module；
Wherein, information collection module of tracing to the source is for hooking system service call, and produces information of tracing to the source, and traces to the source
Information includes the dependence between file object, process object and file and process；Data send
Module is for being sent to data reception module by the above-mentioned information of tracing to the source；Data reception module is for receiving
State the information of tracing to the source and be forwarded to information storage module of tracing to the source；Trace to the source information storage module for letter of tracing to the source
Breath is stored in data base；Data reconstruction module is for rebuilding file according to information of tracing to the source.
As it is shown in figure 1, above-mentioned based on the information of tracing to the source data reconstruction system based on embodiment offer is entered
The method of row data reconstruction, including collection of tracing to the source, inquiry of tracing to the source, factorial analysis, reconstruction perform, extensive
Multiple process, specific as follows:
(1) hooking system service call, calls generation according to system and traces to the source information；Wherein, trace back source packet
Include the dependence between file object, process object and file and process；Process object include into
The input parameter of journey, environmental variable, process title or identifier；File object includes filename, joint
Period, side-play amount and the detailed byte in write file；
(2) information of tracing to the source is stored the data base that traces to the source；And divide for each process object or file object
Join unique number；This numbering is mainly used to uniquely identify object, including process object and file object；
Process object and file object are stored identityDB；To rely between description process and file
The information of relation stores ancestorDB；
(3) when receiving the request of tracing to the source, information of tracing to the source corresponding to query request object from data base,
Including the dependency relationships between this object and process, the attribute information of object, such as object name, right
As identifier；
(4) inquire about the data base that traces to the source, the file intending rebuilding is carried out factorial analysis, it is judged that intend reconstruction
No in file there is unnecessary file, if it is not, then enter step (5)；The most then according to unnecessary file
Type, unnecessary file is covered, delete or renaming process；
Wherein, unnecessary file refer to intend rebuilding file relevant, except loss file or impaired literary composition
File outside part；
(5) according to the ancestral data of lane database of tracing to the source, backtracking is lost or the generation process of damaged files,
The information reconstruction loss obtained according to backtracking or impaired file；
(6) file unrelated with loss or impaired file process of reconstruction generated is deleted；And will
Rebuilding the lowest version file access pattern generated is highest version file；Recovery process is to delete the file of lowest version,
And by the process of file RNTO this document of highest version.
Shown in Fig. 2, it it is the exemplary plot of affected file in the process of reconstruction of embodiment；Process P is raw
Become file A, B, C；File B, C are modified and are converted to the B1 of use process P1 and P2 (i.e.,
File B, version 1) and C1 (that is, file C, version 1)；
When file A loses, when needing use process P to rebuild, while generating file A, also give birth to
Become file B and C；Owing to file B and C and file B1 and C1 has identical title, literary composition
Part B and C covers existing B1 and C1 automatically；If the version number of B1 and C1 is not before Chong Jianing
It is zero, then needs to record its version number, and it is renamed.
Fig. 3 be rebuild during process interact schematic diagram；Tmp file is as P's (GCC)
Ancestors；Owing to tmp file does not exist on disk, therefore calling process P1 (CCL) generates and is somebody's turn to do
Ancestors' file；
Owing to this document is temporary file, do not exist under stable Disk State, therefore at disk
On still can not find this regeneration tmp file；And P1 relies on P (i.e. GCC)；In this case,
It is not used alone P1 and rebuilds tmp file, run process P (i.e. GCC), will automatically replicate this process,
Generate subprocess P1；Subprocess P1 reads input file hello.c and generates tmp file；By this tmp
File is used as the input file of process P, generates hello.o file.
As it will be easily appreciated by one skilled in the art that and the foregoing is only presently preferred embodiments of the present invention,
Not in order to limit the present invention, all made within the spirit and principles in the present invention any amendment, etc.
With replacement and improvement etc., should be included within the scope of the present invention.
Claims (7)
1. a data reconstruction system based on the information of tracing to the source, it is characterised in that include that information of tracing to the source is received
Collection module, data transmission blocks, data reception module, trace to the source information storage module and data reconstruction mould
Block；
Described information collection module of tracing to the source is for hooking system service call, and produces information of tracing to the source；Described number
According to sending module for the described information of tracing to the source of stating is sent to data reception module；Described data reception
Block is for being forwarded to, by the described information of tracing to the source, information storage module of tracing to the source；Described information storage module of tracing to the source
For the information of tracing to the source is stored in the data base that traces to the source；Described data reconstruction module is for according to tracing to the source information pair
File is rebuild；The described information of tracing to the source include file object, process object and file and process it
Between dependence.
2. data reconstruction system as claimed in claim 1, it is characterised in that described in trace to the source data base
Including identity database, ancestral data storehouse；
Described identity database is used for conservation object name, ancestral data storehouse depending on between conservation object
The relation of relying.
3. data reconstruction system as claimed in claim 1 or 2, it is characterised in that described in trace to the source letter
Breath collection module includes interception unit, information generating unit of tracing to the source and detector unit；
Described interception unit be used for hooking system service call information, described in trace to the source information generating unit for will
Described system call information is converted to the information of tracing to the source；Whether described detector unit traces to the source information for judgement
Repeat or cyclization, if repeating, being abandoned, if cyclization, eliminating ring.
4. a data reconstruction side based on the data reconstruction system described in any one of claims 1 to 3
Method, it is characterised in that comprise the steps:
(1) hooking system service call, calls generation according to system and traces to the source information；The described information of tracing to the source includes
Dependence between file object, process object and file and process；Described process object includes
The input parameter of process, environmental variable, process title or identifier；Described file object includes file
Name, node number, side-play amount and the byte in write file；
(2) the described information of tracing to the source is stored the data base that traces to the source, and be each process object and file object
Distribution numbering；Described numbering is used for unique identification process object or file object；
(3) when receiving the request of tracing to the source, from the described data base that traces to the source corresponding to query request object
Trace to the source information, including the dependency relationships between described request object and process and the genus of request object
Property information；
(4) according to the data base that traces to the source, the file intending rebuilding is carried out factorial analysis, it is judged that intend the literary composition rebuild
No in part there is unnecessary file, if it is not, then enter step (5)；The most then according to unnecessary file
Unnecessary file is covered, deletes or renaming process by type；
Described unnecessary file refer to intend rebuilding file relevant, except loss file or damaged files
Outside file；
(5) according to the ancestral data of lane database of tracing to the source, backtracking is lost or the generation process of damaged files,
The information reconstruction loss obtained according to backtracking or impaired file.
5. data re-establishing method as claimed in claim 4, it is characterised in that described step (5)
Afterwards, the process deleting the file unrelated with loss or damaged files that process of reconstruction generates also is included；
And the process that lowest version file access pattern is highest version file generated will be rebuild；Described recovery refers to delete
Except lowest version file, by the process of highest version file renaming.
6. data re-establishing method as claimed in claim 4, it is characterised in that described in trace to the source data base
Including identity database and ancestral data storehouse；
In step (2), described process object and file object store identity database, describe process
And the information of dependence stores ancestral data storehouse between file.
7. data re-establishing method as claimed in claim 4, it is characterised in that described step (5)
Data reconstruction processes include following sub-step:
(5.1) on disk, the ancestral data in chain of tracing to the source is found, it is judged that on disk, whether stored this
Ancestral data, the most then enter step (5.2)；
If it is not, then regenerate ancestral data according to the information of tracing to the source, and enter step (5.2)；
(5.2) according to described ancestral data, backtracking is lost or the generation process of damaged files, according to returning
The reconstruction sequence obtained of tracing back rebuilds loss or impaired file.
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| CN110297728B (en) * | 2019-06-20 | 2021-07-23 | 暨南大学 | Selective data reconstruction method in file reconstruction process based on origin data |
| CN111462872A (en) * | 2020-02-27 | 2020-07-28 | 山东公链信息科技有限公司 | Vaccination reservation system based on block chain traceability technology |
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| CN113434359A (en) * | 2021-06-22 | 2021-09-24 | 平安国际智慧城市科技股份有限公司 | Data traceability system construction method and device, electronic device and readable storage medium |
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| C06 | Publication | ||
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Application publication date: 20160907 |