CN108509293A - A kind of user journal timestamp fault-tolerance approach and system - Google Patents
A kind of user journal timestamp fault-tolerance approach and system Download PDFInfo
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- CN108509293A CN108509293A CN201810237129.2A CN201810237129A CN108509293A CN 108509293 A CN108509293 A CN 108509293A CN 201810237129 A CN201810237129 A CN 201810237129A CN 108509293 A CN108509293 A CN 108509293A
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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
- G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
- G06F11/0766—Error or fault reporting or storing
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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
- G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
- G06F11/079—Root cause analysis, i.e. error or fault diagnosis
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/34—Recording or statistical evaluation of computer activity, e.g. of down time, of input/output operation ; Recording or statistical evaluation of user activity, e.g. usability assessment
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Abstract
The invention discloses a kind of user journal timestamp fault-tolerance approaches, including：Collect user log files；User log files are decompressed, are parsed, the timestamp of user log files is obtained；Store path based on user log files carries out error detection and error correction to the timestamp of user log files.In addition, the invention also discloses a kind of user journal timestamp tolerant systems, including：Collection module, for collecting user log files；Decompression parsing module obtains the timestamp of user log files for being decompressed, being parsed to the user log files that collection module is collected；Error-detection error-correction module is used for the store path based on user log files, timestamp progress error detection and error correction to the user log files that decompression parsing module obtains.The present invention is based on the store paths of user log files, the problem of carrying out error-detection error-correction to the timestamp of user log files, avoid due to data analysis mistake caused by timestamp mistake or lose.
Description
Technical field
The present invention relates to terminal user's journal file field more particularly to a kind of user journal timestamp fault-tolerance approach and it is
System.
Background technology
When analyzing user journal information, the timestamp of daily record is important analysis axis.However, due to terminal
Equipment often because restart with the reasons such as the system failure, cause timestamp mistake occur, for example the date of timestamp occurs
19700101 equal error messages, can cause later data to handle and analyze mistake and data Loss in this way.
Invention content
The present invention provides a kind of user journal timestamp fault-tolerance approach, and error-detection error-correction has been carried out to the user journal time, solves
It has determined in the prior art since user journal timestamp appearance mistake causes later data processing analysis mistake and loss of data
Problem.Specific technical solution is as follows：
A kind of user journal timestamp fault-tolerance approach, including：S100 collects user log files；S200 is to the user day
Will file is decompressed, is parsed, and the timestamp of the user log files is obtained；S300 is deposited based on the user log files
Path is stored up, error detection and error correction are carried out to the timestamp of the user log files.
Preferably, the step S200 includes：S210 decompresses the user log files, obtains the user day
The title of will file；S220 parses the temporal information of the user log files from the title of the user log files,
Obtain the timestamp of the user log files.
Preferably, the step S300 includes：S310 obtains the store path of the user log files, intercepts the use
Temporal information in the store path of family journal file, which is used as, refers to temporal information；S320 judge the user log files when
Between the temporal information stabbed it is whether consistent with the reference time information, if it is not, entering step S330；S330 judges the user day
The timestamp of will file is wrong, according to the reference time information, changes the timestamp of the user log files.
Preferably, the step S320 includes：S321 obtains the year information in the timestamp of the user log files；
S322 judges whether the year information in the timestamp of the user log files is consistent with the year information of current time；If
It is to enter step S323；Otherwise, S330 is entered step；S323 is obtained in the timestamps of the user log files except year especially
Remaining time information, judge in the timestamp of the user log files except year especially remaining time information whether with the reference
Corresponding temporal information is consistent in temporal information；If it is not, entering step S330.
Preferably, the file name information of the user log files includes three parts：Temporal information, hardware id information and soft
Part version number information；Wherein, the temporal information includes：Year information, month information, date information and hour information.
In addition, the present invention also provides a kind of user journal timestamp tolerant systems, including：Collection module, for collecting
User log files；Parsing module is decompressed, the user log files for being collected to the collection module are decompressed, solved
Analysis, obtains the timestamp of the user log files；Error-detection error-correction module is used for the storage road based on the user log files
Diameter, timestamp progress error detection and error correction to the user log files that the decompression parsing module obtains.
Preferably, the decompression parsing module includes：Filename acquisition submodule, for the user log files into
Row decompression, obtains the title of the user log files；Timestamp acquisition submodule, for the name from the user log files
The temporal information that the user log files are parsed in title obtains the timestamp of the user log files.
Preferably, the error-detection error-correction module includes：Reference time acquisition submodule, for obtaining the user journal text
The store path of part, the temporal information intercepted in the store path of the user log files are used as with reference to temporal information；Judge
Submodule, for judge it is described decompression parsing module obtain the user log files timestamp temporal information whether with
The reference time information that the reference time acquisition submodule obtains is consistent；If it is not, judging the time of the user log files
It stabs wrong；Submodule is changed, for when the judging submodule judges that the timestamp of the user log files is wrong, according to
The reference time information, changes the timestamp of the user log files.
Preferably, the judging submodule includes：First acquisition unit, the time for obtaining the user log files
Year information in stamp；First judging unit, for judging user log files that the first acquisition unit obtains
Whether the year information in timestamp is consistent with the year information of current time；When the timestamp for judging the user log files
In year information it is consistent with the year information of current time when, follow-up time information is continued by second judgment unit and is sentenced
It is disconnected；When the year information of year information and current time in the timestamp for judging the user log files is inconsistent, lead to
Cross the timestamp that the modification submodule changes the user log files；Second acquisition unit, for obtaining the user day
Except year especially remaining time information in the timestamp of will file；The second judgment unit, for when the judgement user journal
When year information in the timestamp of file is consistent with the year information of current time, judge what the second acquisition unit obtained
Except year, especially whether remaining time information was corresponding with the reference time information in the timestamp of the user log files
Temporal information is consistent；When in the timestamp for judging the user log files in addition to year information remaining time information and the ginseng
Examine corresponding temporal information in temporal information it is inconsistent when, by the modification submodule change the user log files when
Between stab.
Preferably, the file name information of the user log files includes three parts：Temporal information, hardware id information and soft
Part version number information；Wherein, the temporal information includes：Year information, month information, date information and hour information.
The present invention at least has with the next item down technique effect：
(1) present invention has carried out error detection according to the store path of user log files to the timestamp of user log files
Error correction avoids the problem for causing that later data is handled and analysis is wrong since timestamp is wrong, can also avoid loss of data
The phenomenon that occur, realize the fault-tolerant purpose of user journal timestamp.
(2) whether the present invention is identical as the time of current time by the year information for monitoring timestamp in user journal,
If differing, the temporal information when date in timestamp is directly replaced with to the days in the store path of the user journal
Temporal information when day is realized the fault-tolerant purpose of user journal timestamp, is promoted to obtain revised user journal timestamp
The treatment effeciency of detection.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly introduced, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill in field, without having to pay creative labor, it can also be obtained according to these attached drawings
His attached drawing.
Fig. 1 is a kind of flow chart of the embodiment of user journal timestamp fault-tolerance approach of the present invention；
Fig. 2 is a kind of flow chart of another embodiment of user journal timestamp fault-tolerance approach of the present invention；
Fig. 3 is a kind of flow chart of another embodiment of user journal timestamp fault-tolerance approach of the present invention；
Fig. 4 is a kind of flow chart of another embodiment of user journal timestamp fault-tolerance approach of the present invention；
Fig. 5 is a kind of block diagram of the embodiment of user journal timestamp tolerant system of the present invention；
Fig. 6 is a kind of block diagram of another embodiment of user journal timestamp tolerant system of the present invention.
Specific implementation mode
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention make into
It is described in detail to one step, it is clear that the described embodiments are only some of the embodiments of the present invention, rather than whole implementation
Example.Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
All other embodiment, shall fall within the protection scope of the present invention.
The invention discloses a kind of user journal timestamp fault-tolerance approaches, and embodiment is as shown in Figure 1, include：
S100 collects user log files；
S200 decompresses the user log files, is parsed, and the timestamp of the user log files is obtained；
Store paths of the S300 based on the user log files carries out error detection to the timestamp of the user log files
And error correction.
We are in data processing, usually processing in real time, in store path when collecting the journal file of user
Including the mode of temporal information stores user log files.The present invention is based on such a memory mechanism to carry out
The error-detection error-correction of user log files timestamp.Such as be 20 minutes 16 points of on March 2nd, 2018 now, then at 2018 3
On the moon 2 16: 00 separately began to 2 days 17: 00 March in 2018/preceding, storage of the user network journal file of this period
Aft section in path is " 2018/03/02/16/20/log_file.data ".Here store path is by machine time
What setting generated, the standard that can be detected as timestamp.
Another embodiment of fault-tolerance approach of the present invention, as shown in Fig. 2, including：
S100 collects user log files；
S210 decompresses the user log files, obtains the title of the user log files；
S220 parses the temporal information of the user log files from the title of the user log files, obtains institute
State the timestamp of user log files；
Store paths of the S300 based on the user log files carries out error detection to the timestamp of the user log files
And error correction.
Our user log files in name are named according to certain name format, in file name
The timestamp of user network journal file is contained, specifically, the magnanimity uplink file (user log files) collected
It is " YYYYMMDDHHMinMinSS_X***X (hardware ID) _ Va.b (software version number) .data " to name format.Therefore, we
The temporal information that user log files can be chosen from filename, obtains the timestamp of user log files.And due to terminal
There are restarting the either reasons such as system failure and is likely to result in the initialization of time at that time or restores covering in equipment, then just
It is likely to occur the temporal information of mistake, for example occurs for 19700101 wrong time, in this way, the user log files that terminal generates
When name will time of occurrence information mistake, subsequent data processing and analysis are impacted.Therefore, for this feelings
Condition, it would be desirable to which EDC error detection and correction is carried out to the timestamp of user log files.
Another embodiment of fault-tolerance approach of the present invention, as shown in figure 3, including：
S100 collects user log files；
S200 decompresses the user log files, is parsed, and the timestamp of the user log files is obtained；
S310 obtains the store path of the user log files, in the store path for intercepting the user log files
Temporal information, which is used as, refers to temporal information；
S320 judges whether the temporal information of the timestamp of the user log files is consistent with the reference time information,
If it is not, entering step S330；
S330 judges that the timestamp of the user log files is wrong, according to the reference time information, changes the use
The timestamp of family journal file.
In the present embodiment, after getting the timestamp information of user log files, compare the timestamp whether with storage road
Temporal information in diameter is consistent, specifically, such as getting the timestamp information of user log files：Timestamp=
" 20171225210915 " (temporal information represented as 09 divide 15 seconds when 25 days 21 December in 2017)；The user log files
Store path is：(temporal information represented is on December 28th, 2017 to * * * * */2017/12/28/21/log_file.data
When 21), when carrying out Time transfer receiver, time and time compare, month and compare in month, date and date compare, hour
It compares, is found after so comparing, the time in temporal information and store path in the timestamp of user log files with hour
Information is inconsistent, therefore, judge it is wrong in the timestamp of the user log files, to the temporal information in store path be
Reference time is modified the temporal information in timestamp.Specifically, timestamp is revised as：Timestamp=
“20171228210915”.Namely time point inconsistent with reference time information in the temporal information of timestamp is replaced with
Reference time information point since the time point information on days is consistent, occurs in this present embodiment from date sart point in time information
It is inconsistent, therefore, as long as by timestamp date and subsequent hour be modified, by original in December, 2017
When being revised as 28 days 21 December in 2017 at 25 days 21.For the minute in timestamp, second equi-time point information, due to ginseng
Examining does not have the information at this time point in the time, just have no way of referring to yet, then this part-time point information is then not necessarily to check modification.
That is temporal information when need to only compare the date in the timestamps of user log files whether with the year in store path
Temporal information is identical when the day moon, if identical, illustrates that timestamp is errorless, it is not necessary to modify if it is different, then illustrate that timestamp has
Accidentally, then can directly by the date in timestamp when time letter of temporal information when replacing with the date in store path
Breath (reference time information) realizes the fault-tolerant purpose of user journal timestamp to have modified the temporal information of timestamp.
Preferably, as shown in figure 4, on the basis of the above embodiments, the step S320 includes：
S321 obtains the year information in the timestamp of the user log files；
S322 judge the year information in the timestamp of the user log files whether the year information with current time
Unanimously；If so, entering step S323；Otherwise, S330 is entered step；
S323 is obtained in the timestamps of the user log files except year especially remaining time information, judges the user day
In the timestamp of will file except year especially remaining time information whether with corresponding temporal information one in the reference time information
It causes；If it is not, entering step S330.
In the present embodiment, in order to optimize error detection efficiency, accelerates the inspection treatment effeciency to timestamp, preferentially the time is carried out
Detection, if the time is inconsistent, without subsequently being checked, directly by the timestamp of user log files according to the reference time
Change accordingly, if the time is consistent, rechecks the temporal informations such as subsequent month, date, hour.
Preferably, in any of the above-described embodiment, the file name information of the user log files includes three parts：Time believes
Breath, hardware id information and software version number information；Wherein, the temporal information includes：Year information, month information, date letter
Breath and hour information.
Another embodiment of fault-tolerance approach of the present invention, the store path according to journal file are set by machine time,
Such as~/year/month/day/hour/log_file.data, the user journal timestamp in journal file path is obtained, into
Row log timestamp error correction.Implementation steps specifically include：
Step 1: the magnanimity uplink file collected, name format are：“YYYYMMDDHHMinMinSS_X***X
(hardware ID) _ Va.b (software version number) .data ".
Step 2: carrying out decompressing secret parsing to collected magnanimity uplink file.
Step 3: in resolving, by user journal timestamp fault tolerant mechanism carry out the error detection of log recording time and
Error correction is as follows：
(1) title for obtaining uplink file, is labeled as FileName.
(2) it is three parts by FileName points and remains, i.e. timestamp=" YYYYMMDDHHMinMinSS ",
HardID=" X***X " (hardware ID) and SoftwareVersion=" Va.b " (software version number).
(3) the time Year=" YYYY " of timestamp is intercepted.Due to here in order to promote the treatment effeciency of program, machine
The variation of time device time is relatively slow and data processing is to handle in real time, therefore setting current year is fixed value, that is, Year_Now here
=" 2018 ", every adjacent 2 year transitional period can update once.Source log store path format is "~/year/month/ simultaneously
day/hour/log_file.data”。
(4) judge whether Year is equal to Year_Now, if equal, timestamp is correct, continues subsequent processing；Otherwise, from
Year/month/day/hour is intercepted on Source log store path, and carries out log timestamp error correction, i.e. timestamp=
“year”+“month”+“day”+“hour”+“MinMinSS”。
Step 4: continuing follow-up parsing operation.
In the present embodiment, by first four of timestamp in detection terminal user's row daily record whether the time with current time
It is identical, if differing, the time intercepted in file store path is replaced with when by its date, to be combined into new user
Log timestamp realizes the fault-tolerant purpose of user journal timestamp.
Based on the same technical idea, the present invention also provides a kind of user journal timestamp tolerant system, the fault-tolerant systems
System may be used the present invention user journal timestamp fault-tolerance approach, specifically, as shown in figure 5, the present invention user journal when
Between stamp tolerant system include：Collection module 100, for collecting user log files；Parsing module 200 is decompressed, for described
The user log files that collection module 100 is collected are decompressed, are parsed, and the timestamp of the user log files is obtained；
Error-detection error-correction module 300 is used for the store path based on the user log files, is obtained to the decompression parsing module 200
The timestamps of the user log files carry out error detection and error correction.
As shown in fig. 6, on the basis of above system embodiment, the decompression parses the another system embodiment of the present invention
Module 200 includes：Filename acquisition submodule 210 obtains the user day for being decompressed to the user log files
The title of will file；Timestamp acquisition submodule 220, for parsing the user from the title of the user log files
The temporal information of journal file obtains the timestamp of the user log files.
Another embodiment of the present invention, shown in Fig. 6, based on any of the above embodiments, the error detection
Correction module 300 includes：Reference time acquisition submodule 310, the store path for obtaining the user log files, interception
Temporal information in the store path of the user log files, which is used as, refers to temporal information；Judging submodule 320, for judging
It is described decompression parsing module 200 obtain the user log files timestamp temporal information whether with the reference time
The reference time information that acquisition submodule obtains is consistent；If it is not, judging that the timestamp of the user log files is wrong；Modification
Module 330, for when the judging submodule 320 judges that the timestamp of the user log files is wrong, according to the ginseng
Temporal information is examined, the timestamp of the user log files is changed.
Preferably, on the basis of the above embodiments, the judging submodule 320 includes：First acquisition unit 321 is used
Year information in the timestamp for obtaining the user log files；First judging unit 322, for judging that described first obtains
Take unit 321 obtain the user log files timestamp in year information whether the year information one with current time
It causes；When the year information in the timestamp for judging the user log files is consistent with the year information of current time, pass through
Second judgment unit 324 continues the judgement of follow-up time information；Year in the timestamp for judging the user log files
When the year information of part information and current time is inconsistent, the user log files are changed by the modification submodule 330
Timestamp；Second acquisition unit 323, except year, especially remaining time believed in the timestamp for obtaining the user log files
Breath；The second judgment unit 324, for when in the timestamp for judging the user log files year information with it is current when
Between year information it is consistent when, judge the second acquisition unit 323 obtain the user log files timestamp in remove
Year, especially whether remaining time information was consistent with corresponding temporal information in the reference time information；As the judgement user day
Remaining time information and corresponding temporal information in the reference time information be not in addition to year information in the timestamp of will file
When consistent, the timestamp of the user log files is changed by the modification submodule 330.
In the present embodiment, by first four of timestamp in detection terminal user log files whether with current machine time
Time it is identical, if differing, the time intercepted in file store path is replaced with when by its date, it is new to be combined into
User journal timestamp, realize the fault-tolerant purpose of user journal timestamp, promote treatment effeciency.
In any of the above-described tolerant system embodiment, the file name information of the user log files includes three parts：Time
Information, hardware id information and software version number information；Wherein, the temporal information includes：Year information, month information, date
Information and hour information.
The user journal timestamp fault-tolerance approach of the user journal timestamp tolerant system embodiment of the present invention and the present invention
Embodiment corresponds to, and the technical detail of fault-tolerance approach embodiment of the invention can equally be well applied to the tolerant system implementation of the present invention
Example is repeated to reduce, is repeated no more.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of user journal timestamp fault-tolerance approach, which is characterized in that including：
S100 collects user log files；
S200 decompresses the user log files, is parsed, and the timestamp of the user log files is obtained；
Store paths of the S300 based on the user log files carries out error detection to the timestamp of the user log files and entangles
It is wrong.
2. a kind of user journal timestamp fault-tolerance approach according to claim 1, which is characterized in that the step S200 packets
It includes：
S210 decompresses the user log files, obtains the title of the user log files；
S220 parses the temporal information of the user log files from the title of the user log files, obtains the use
The timestamp of family journal file.
3. wanting a kind of user journal timestamp fault-tolerance approach described in 1 according to right, which is characterized in that the step S300 packets
It includes：
S310 obtains the store path of the user log files, intercepts the time in the store path of the user log files
Information, which is used as, refers to temporal information；
S320 judges whether the temporal information of the timestamp of the user log files is consistent with the reference time information, if
It is no, enter step S330；
S330 judges that the timestamp of the user log files is wrong, according to the reference time information, changes the user day
The timestamp of will file.
4. a kind of user journal timestamp fault-tolerance approach according to claim 3, which is characterized in that the step S320 packets
It includes：
S321 obtains the year information in the timestamp of the user log files；
S322 judges whether the year information in the timestamp of the user log files is consistent with the year information of current time；
If so, entering step S323；Otherwise, S330 is entered step；
S323 is obtained in the timestamps of the user log files except year especially remaining time information, judges the user journal text
Except year, especially whether remaining time information was consistent with corresponding temporal information in the reference time information in the timestamp of part；If
It is no, enter step S330.
5. according to a kind of user journal timestamp fault-tolerance approach of claim 1-4 any one of them, which is characterized in that
The file name information of the user log files includes three parts：Temporal information, hardware id information and software version number letter
Breath；Wherein, the temporal information includes：Year information, month information, date information and hour information.
6. a kind of user journal timestamp tolerant system, which is characterized in that including：
Collection module, for collecting user log files；
Parsing module is decompressed, the user log files for being collected to the collection module are decompressed, parsed, and institute is obtained
State the timestamp of user log files；
Error-detection error-correction module is used for the store path based on the user log files, is obtained to the decompression parsing module
The timestamp of the user log files carries out error detection and error correction.
7. a kind of user journal timestamp tolerant system according to claim 6, which is characterized in that the decompression parses mould
Block includes：
Filename acquisition submodule obtains the name of the user log files for being decompressed to the user log files
Claim；
Timestamp acquisition submodule, for parsed from the title of the user log files user log files when
Between information, obtain the timestamp of the user log files.
8. a kind of user journal timestamp tolerant system according to claim 6, which is characterized in that the error-detection error-correction mould
Block includes：
Reference time acquisition submodule, the store path for obtaining the user log files intercept the user journal text
Temporal information in the store path of part, which is used as, refers to temporal information；
Judging submodule, the time letter of the timestamp of the user log files for judging the decompression parsing module acquisition
Whether breath is consistent with the reference time information that the reference time acquisition submodule obtains；If it is not, judging the user journal text
The timestamp of part is wrong；
Submodule is changed, for when the judging submodule judges that the timestamp of the user log files is wrong, according to institute
Reference time information is stated, the timestamp of the user log files is changed.
9. a kind of user journal timestamp tolerant system according to claim 8, which is characterized in that the judging submodule
Including：
First acquisition unit, the year information in timestamp for obtaining the user log files；
First judging unit, the year in timestamp for judging user log files that the first acquisition unit obtains
Whether part information is consistent with the year information of current time；Year information in the timestamp for judging the user log files
When consistent with the year information of current time, follow-up time information is continued by second judgment unit and is judged；When judgement institute
State the year information and current time in the timestamp of user log files year information it is inconsistent when, pass through the modification son
Module changes the timestamp of the user log files；
Second acquisition unit, except year especially remaining time information in the timestamp for obtaining the user log files；
The second judgment unit, for when the year information and current time in the timestamp for judging the user log files
Year information it is consistent when, judge in the timestamp for the user log files that the second acquisition unit obtains except year especially
Whether remaining time information is consistent with corresponding temporal information in the reference time information；When the judgement user log files
Timestamp in when remaining time information temporal information corresponding with the reference time information is inconsistent in addition to year information,
The timestamp of the user log files is changed by the modification submodule.
10. according to a kind of user journal timestamp tolerant system of claim 6-9 any one of them, which is characterized in that
The file name information of the user log files includes three parts：Temporal information, hardware id information and software version number letter
Breath；Wherein, the temporal information includes：Year information, month information, date information and hour information.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109947411A (en) * | 2019-03-29 | 2019-06-28 | 成都章鱼侠科技股份有限公司 | The method that distributed software generates unique ID major key |
| CN113420751A (en) * | 2021-06-15 | 2021-09-21 | 读书郎教育科技有限公司 | System and method for offline time calibration of smart watch |
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