CN106484728B - Generation method, analytic method, generating means and the resolver of daily record data - Google Patents
Generation method, analytic method, generating means and the resolver of daily record data Download PDFInfo
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- CN106484728B CN106484728B CN201510548931.XA CN201510548931A CN106484728B CN 106484728 B CN106484728 B CN 106484728B CN 201510548931 A CN201510548931 A CN 201510548931A CN 106484728 B CN106484728 B CN 106484728B
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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
- G06F16/13—File access structures, e.g. distributed indices
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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
- G06F16/18—File system types
- G06F16/1805—Append-only file systems, e.g. using logs or journals to store data
- G06F16/1815—Journaling file systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/069—Management of faults, events, alarms or notifications using logs of notifications; Post-processing of notifications
Abstract
The present invention relates to the communications fields, disclose generation method, analytic method, generation system and the resolution system of a kind of daily record data.In the present invention, first, it is determined that whether including static data in daily record data to be generated, if substituting the static data using the character string address for storing the static data comprising static data.Then, daily record data is generated by the character string address of static data.Original static data is replaced by using the character string address of storage static data, the amount for generating daily record data can be effectively reduced, the requirement to the speed of service needed for daily record data processing is reduced, the efficiency of daily record data information is effectively improved, promotes the overall performance of embedded system.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of generation method of daily record data, analytic method, generating means and
Resolver.
Background technique
With the continuous development of the communication technology, continuous improvement of people's living standards, (such as hand is mechanical, electrical for various terminal equipment
Brain) use have been obtained it is universal, each terminal device have become people life in indispensable tool.But with terminal
The increase of functions of the equipments, the module in terminal device is more and more, in terminal device operational process, sets for convenience in terminal
It is standby go wrong after trace debug, the log printed (log) data volume is also more and more.Therefore, in embedded systems,
More memory sources can be occupied, and speed (Million Instructions Per is averagely executed to single-length fixed point instruction
Second, MIPS) higher requirements are also raised.
In the prior art, the log amount that terminal device prints is very big, but the information content carried is limited, and
The inefficiency of log processing, needs to consume higher MIPS.In addition, if the method for directlying adopt data compression, it can be serious
Waste MIPS.It can be seen that how to reduce log amount, the efficiency for improving log has become technology urgently to be resolved in the prior art and asks
One of topic.
Summary of the invention
The purpose of the present invention is to provide a kind of generation method of daily record data, analytic method, generating means and parsing dresses
It sets, to realize the compression of log data, reduces log data volume, reduce the MIPS of log processing, effectively improve the effect of log information
Rate promotes the overall performance of embedded system.
In order to solve the above technical problems, the present invention provides a kind of generation methods of daily record data comprising the steps of: sentence
Whether break in daily record data to be generated comprising static data；If the word of the static data will be stored comprising static data
It accords with location of ploughing and substitutes the static data, generate daily record data.
The present invention also provides a kind of analytic methods of daily record data comprising the steps of: judges log number to be resolved
It whether include address information in；If obtaining character string indicated by the address information comprising the address information；It will obtain
The character string taken substitutes the address information in the daily record data, the daily record data after being parsed.
The present invention also provides a kind of generating means of daily record data, include: static data judgment module, for judge to
It whether include static data in the daily record data of generation；Generation module, for determining in static data judgment module comprising static state
When data, the character string address for storing the static data is substituted into the static data, generates daily record data.
The present invention also provides a kind of resolvers of daily record data, include: address information judgment module, for judge to
It whether include address information in the daily record data of parsing；Character string obtains module, for determining to wrap in address information judgment module
When containing address information, obtains character string indicated by the address information；Parsing module, the character string for will acquire substitute log
Address information in data, the daily record data after being parsed.
Embodiment of the present invention in terms of existing technologies, provides a kind of generation method of daily record data.Firstly, sentencing
Break whether comprising static data in daily record data to be generated, if comprising static data, using storing the static data
Character string address substitutes the static data itself.Then daily record data is generated by the character string address of static data.It is logical
It crosses using the character string address of storage static data and replaces static data itself, log data volume, reduction pair can be effectively reduced
The requirement of the speed of service needed for log data processing effectively improves the efficiency of log data information, promotes the entirety of embedded system
Performance.
In addition, it is described judge in daily record data to be generated whether include static data the step of before, also include:
When linking executable file destination, static data is linked in a particular piece of data in the executable file destination；?
In the step of character string address for storing the static data is substituted static data, by static data in the particular piece of data
First address, substitute static data.Storage mode since data segment in file destination can be performed is sequential storage, so passing through
The first address of storage static data can represent static data.Static data itself is replaced by the first address of storage static data,
Complexity is effectively reduced, is conducive to realize.
It include following sub-step in addition, judging in daily record data to be generated in the step of whether including static data: inspection
It surveys in daily record data to be generated, if include specific storage address；Wherein, the specific storage address is in institute
State the address between the initial address of particular piece of data and end address；If including specific in daily record data to be generated
Storage address then determines in the daily record data to be generated comprising static data.Due to the storage address of the static data
It can be between the initial address and end address of the particular piece of data, so by detection in daily record data to be generated
In, if include the specific storage address between the initial address and end address of the particular piece of data, can judge
It whether include out static data in daily record data to be generated.Embodiments of the present invention, which give, a kind of judges day to be generated
In will data whether include static data method, this method is easy to operate, easy to accomplish.
In addition, in the step of substituting the static data by the character string address for storing static data, generate daily record data,
Include following sub-step: detecting in daily record data to be generated, if also includes Formatting Output pointing character；If including lattice
Formulaization exports pointing character, then by the Formatting Output pointing character and specific output parameter group composite characters string, together with institute
State the character string address of substitution static data, the daily record data as generation.Since daily record data generated may have phase
The call format of pass, so by detecting whether that there are Formatting Output pointing characters, so that being protected in the daily record data of generation
Stay its format and parameter, the further perfect generation method of daily record data.
In addition, the particular piece of data is read-only data section；In 32 systems, the first address of the read-only data section is
The data of 4 bytes；The first address of the read-only data section described in 64 systems is the data of 8 bytes.Due to only reading
According in section, any operation modification will all be considered as illegal operation, so static data is linked in executable file destination
Read-only data section in, the safety of static data has been effectively ensured, while also ensuring the correctness of routine access memory.
Also, in 32 systems, character string address can indicate the part of a character string or a character string using 4 bytes,
Therefore the expense that log memory in heap can be effectively reduced, can usually reduce 40% or more, in addition can also reduce log and account for
The space flash.
Detailed description of the invention
Fig. 1 is the flow chart of the generation method of daily record data in first embodiment according to the present invention；
Fig. 2 is the flow chart of the analytic method of daily record data in second embodiment according to the present invention；
Fig. 3 is the schematic diagram of second embodiment output printing log according to the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to each reality of the invention
The mode of applying is explained in detail.However, it will be understood by those skilled in the art that in each embodiment of the present invention,
In order to make the reader understand this application better, many technical details are proposed.But even if without these technical details and base
In the various changes and modifications of following embodiment, each claim of the application technical side claimed also may be implemented
Case.
The first embodiment of the present invention is related to a kind of generation methods of daily record data.Detailed process is as shown in Figure 1.
In advance when linking executable file destination, static data is linked into a spy in the executable file destination
(an i.e. preset data segment) is determined in data segment.For example static data can be linked to only reading in executable file
According in section.With it is executable with can link format (Executable and Linkable Format, ELF) file for, in life
When at ELF file, static data is connected in a read-only data section, and when connection, generates the starting point of this section
Location (base_addr) and end address (end_addr).
Then, in a step 101, whether judge in daily record data to be generated comprising static data.Specifically, to examine
It surveys in daily record data to be generated, if it include specific storage address, and the specific storage address is in above-mentioned
Address between the initial address and end address of read-only data section.Since the storage address of the static data can be above-mentioned
Between initial address and end address, so through detection in daily record data to be generated, if include in the starting
Whether the specific storage address between address and end address can be judged in daily record data to be generated comprising static number
According to.
Such as when application call printing interface, printf (const void*format ...), such as:
" printf (" This is a printf-demo:%d, %c ", a, b)；", at this point, passing through base_addr < format&&
Format < end_addr sentence detects whether format has specific storage address.
If detected in daily record data to be generated not containing the specific storage address, should determine to be generated
Static data is not included in daily record data, therefore, Ying Zhihang step 102 generates daily record data according to the prior art.If detection
Include the specific storage address into daily record data to be generated, then should determine in daily record data to be generated comprising quiet
State data, therefore, Ying Zhihang step 103 replaces static data with the character string address of storage static data.
In a step 102, daily record data is generated according to the prior art.The character string for needing to export is combined first, and code is such as
Under:
va_start(sa,format)；
vsnprintf(temp_buf,N,format,sa)；(note: temp_buf is temporal cache, and N is temporal cache
Size)
va_end(sa)；
Then the character string temp_buf of said combination is exported, this step is same as the prior art, and details are not described herein.
In step 103, static data is replaced with the character string address of storage static data.Specifically, will use quiet
First address of the state data in particular piece of data, to replace the static data.As above-mentioned link to static data can hold
In the read-only data section composed a piece of writing in part, first address of the static data in read-only data section may be used to replace static data sheet
Body.Since the storage mode of read-only data section is sequential storage, so can be represented by the first address of storage static data quiet
State data.Described in example as above, by the address fomat (such as 0x00008020), as the static number in the daily record data that will be generated
According to.
Then, at step 104, daily record data is generated.Specifically, when generating daily record data, should also inquire to
It whether there is Formatting Output pointing character in the daily record data of generation.If detected in static data, not comprising described
Formatting Output pointing character then illustrates in static data only comprising general character string, can be directly by the head of storage static data
Address replaces static data itself, generates daily record data.If detected in static data, refer to comprising the Formatting Output
Show character, then illustrate comprising the part formatted in static data, at this point, should be by the Formatting Output pointing character and specific
Output parameter group composite characters string, together with the character string address of the substitution static data, together as the daily record data of generation.
For example, the printing for printf (format ...) type, the part format can be divided into two parts, one
It is divided into common string portions, another part is Formatting Output indicating section.At this point, being indicated with first Formatting Output
Character " % " is boundary, if detecting that there is no " % " in sentence, determine that the sentence is entirely general character string.If detection
There is " % " into sentence, then determines that there are formatting portions in the sentence.Specific detection sentence are as follows: " char*ptr=
Strstr (format, " % ")；".
Assuming that the data to be printed are as follows: printf (" This is a printf-demo "), wherein only including general character
Formatting Output indicating section is not present in string.Therefore when exporting log, only the first address for storing above-mentioned static data can be made
For the daily record data of generation.
Assuming that the data to be printed are as follows: printf (" %d, %c ", a, b), wherein only being indicated comprising Formatting Output.Cause
This, can be by the Formatting Output pointing character and specific output parameter group composite characters string, as generation when exporting log
Daily record data.
Assuming that the data to be printed are as follows: printf (" This is a printf-demo:%d, %c ", a, b), wherein
" This is a printf-demo: " is general character string part, and " %d, %c " are Formatting Output indicating section.Therefore exist
When exporting log, by the Formatting Output pointing character and specific output parameter group composite characters string, together with substitution static data
Character string address, together as the daily record data of generation.It combines Formatting Output pointing character and specific output parameter
The sentence of character string is as follows:
va_start(sa,format)；
vsnprintf(temp_buf,N,ptr,sa)；(note: temp_buf is temporal cache, and N is temporal cache size,
Ptr is the character string in format character since first format indicator " % ")
va_end(sa)；
Wherein, vchar part is exported are as follows: temp_buf.
Finally, returning to caller, if above-mentioned a=1, b=' c ', the then binary data of reality output are as follows: 00 00 80
20 31 2c 63 00。
In addition, it is noted that if the first address in read-only data section is the number of 4 bytes in 32 systems
According to.If the first address in read-only data section is the data of 8 bytes in 64 systems.Due in 32 systems, character
Location of ploughing can indicate the part of a character string or a character string using 4 bytes, therefore can effectively reduce log and exist
The expense of memory in heap, can usually reduce 40% or more, in addition can also reduce the space flash of log occupancy.
Second embodiment of the present invention is related to a kind of analytic method of daily record data.Detailed process is as shown in Figure 2.
Firstly, obtaining the binary data of log, 00 00 80 20 31 2c 63 00 as escribed above.
Then, in step 201, whether judge in daily record data to be resolved comprising address information.If to be resolved
Do not include address information in daily record data, thens follow the steps 202, the daily record data after being parsed according to the prior art.If
Include address information in daily record data to be resolved, then should execute step 203, obtain character string indicated by the address information.
By taking above-mentioned ELF file as an example, according to the format of ELF file, address above mentioned information is converted to inclined in ELF file
Shifting amount, it is to be resolved to judge according to the offset information of the middle section header address information and this section in ELF in ELF file
It whether include address information in log.It similarly, can also be by setting flag bit or other modes to determine whether believing comprising address
Breath, present embodiment is it is not limited here.
In step 202, the daily record data after being parsed according to the prior art.This step is same as the prior art,
This is repeated no more.
In step 203, character string indicated by the address information is obtained.Firstly, the spy in executable file destination
Determine in data segment to find address pointed by address information (such as in read-only data section).Then since pointed address
Character is read, until reading end mark or reading first Formatting Output pointing character, and it is defeated not read the formatting
Pointing character out.Finally, using the character string read as character string indicated by the address information.
For example, reading common word since the offset after the offset that address above mentioned is converted into ELF file
Symbol string part, until first " % ", " This is a printf-demo: " such as is read, then, by remainder in the log
(31 2c 63 00) is spliced to behind the general character string part read.But if in log only including general character string portion
Point, then the offset will read character string until encountering end mark.No matter which kind of above-mentioned situation, the word that finally will all be read
Symbol string is as character string indicated by the address information.
Then, in step 204, the address information in character string substitution daily record data that will acquire, after being parsed
Daily record data.
The plaintext printing log specifically exported, as shown in Figure 3.31 be code sample, and 32 be the dis-assembling code after compiling,
33 be the ELF file that link generates, corresponding with 32.Specifically, letter shown in generating 32 after the code in 31 is compiled
Breath, then information shown in 32 is compared with the content of ELF file 33, thus the daily record data after being parsed.
In addition, it is noted that can be solved to the content of log only in the case where obtaining ELF file
Analysis, therefore embodiments of the present invention increase the security performance of log.
The step of various methods divide above, be intended merely to describe it is clear, when realization can be merged into a step or
Certain steps are split, multiple steps are decomposed into, as long as comprising identical logical relation, all in the protection scope of this patent
It is interior；To adding inessential modification in algorithm or in process or introducing inessential design, but its algorithm is not changed
Core design with process is all in the protection scope of the patent.
Third embodiment of the invention is related to a kind of generating means of daily record data, includes: static data judgment module, uses
In whether judging in daily record data to be generated comprising static data；Generation module, for determining in static data judgment module
When comprising the static data, the character string address for storing the static data is substituted into the static data, generates daily record data.
In addition, the generating means of the daily record data in present embodiment also include compiling link module, in compiling chain
When connecing executable file destination, static data compiling link can be performed in a particular piece of data in file destination to this；
First address of the generation module by the static data in the particular piece of data, substitutes the static data.
In present embodiment, the course of work of daily record data generating means is as follows:
Firstly, by compiling link module, static data compiling link can be performed to this to a spy in file destination
Determine in data segment, in read-only data section.
Then, whether judged by static data judgment module in daily record data to be generated comprising static data.It is static
Data judgment module can be by detecting in daily record data to be generated, if includes the mode of specific storage address, to sentence
It whether include static data in fixed daily record data to be generated.Wherein, the specific storage address is in above-mentioned certain number
According to the address between the initial address and end address of section, as between the initial address of read-only data section and end address
Location.If in daily record data to be generated including specific storage address, determine to wrap in the daily record data to be generated
Containing static data.If not containing specific storage address in daily record data to be generated, the log to be generated is determined
Do not include static data in data, the prior art can be used and generate log data.
Finally, by generation module, it is quiet by this is stored when static data judgment module determines comprising the static data
The character string address of state data substitutes the static data, generates daily record data.
It is not difficult to find that present embodiment is system embodiment corresponding with first embodiment, present embodiment can be with
First embodiment is worked in coordination implementation.The relevant technical details mentioned in first embodiment still have in the present embodiment
Effect, in order to reduce repetition, which is not described herein again.Correspondingly, the relevant technical details mentioned in present embodiment are also applicable in
In first embodiment.
It is noted that involved each module is logic module in the present embodiment, in practical applications,
One logic unit can be a physical unit, be also possible to a part of a physical unit, can also be with multiple physics
The combination of unit is realized.In addition, in order to protrude innovative part of the invention, it will not be with the solution present invention in present embodiment
The technical issues of proposed, the less close unit of relationship introduced, but this does not indicate that there is no other single in present embodiment
Member.
Four embodiment of the invention is related to a kind of resolver of daily record data.Include: address information judgment module is used
In whether judging in daily record data to be resolved comprising address information；Character string obtains module, for judging mould in address information
When block is determined comprising address information, character string indicated by the address information is obtained；Parsing module, the character string for will acquire
Substitute the address information in daily record data, the daily record data after being parsed.
In addition, character string acquisition module includes: submodule is searched, for the particular piece of data in executable file destination
In, find address pointed by address information；Reading submodule, for reading character since the address of direction, until reading
It gets end mark or reads first Formatting Output pointing character, and do not read the Formatting Output pointing character, will read
The character string got is as character string indicated by the address information.
In present embodiment, the course of work of daily record data resolver is as follows:
Firstly, whether being judged in daily record data to be resolved by address information judgment module comprising address information.
If not including address information, this log is parsed according to the prior art.If including the address
Information then obtains the lookup submodule in module by character string, such as read-only in the particular piece of data in executable file destination
In data segment, address pointed by address information is searched.Then, it by reading submodule, is read since pointed address
Character until reading end mark or reading first Formatting Output pointing character, and does not read the Formatting Output and refers to
Show character.Then, using the character string read as character string indicated by address information.
Finally, by parsing module, by the address information in acquired character string substitution daily record data, after obtaining parsing
Daily record data.
Since second embodiment is corresponded to each other with present embodiment, present embodiment can be mutual with second embodiment
Match implementation.The relevant technical details mentioned in second embodiment are still effective in the present embodiment, implement second
The attainable technical effect of institute similarly may be implemented in the present embodiment in mode, no longer superfluous here in order to reduce repetition
It states.Correspondingly, the relevant technical details mentioned in present embodiment are also applicable in second embodiment.
It will be understood by those skilled in the art that the respective embodiments described above are to realize specific embodiments of the present invention,
And in practical applications, can to it, various changes can be made in the form and details, without departing from the spirit and scope of the present invention.
Claims (8)
1. a kind of generation method of daily record data, which is characterized in that comprise the steps of:
When linking executable file destination, static data is linked to a specific data in the executable file destination
Duan Zhong；
Whether judge in daily record data to be generated comprising static data；
If the character string address for storing the static data is substituted the static data, is generated comprising the static data
Daily record data；
It is wherein, described whether to judge in daily record data to be generated comprising static data, comprising:
It detects in the daily record data to be generated, if include specific storage address；Wherein, the specific storage ground
Location is the initial address in the particular piece of data and the address between end address；
If including specific storage address in the daily record data to be generated, the daily record data to be generated is determined
In include static data.
2. the generation method of daily record data according to claim 1, which is characterized in that described to store the static data
Character string address substitutes the static data, comprising:
By first address of the static data in the particular piece of data, the static data is substituted.
3. the generation method of daily record data according to claim 2, which is characterized in that described to store the static data
Include following sub-step in the step of character string address substitutes the static data, generates daily record data:
It detects in the daily record data to be generated, if also include Formatting Output pointing character；
If comprising the Formatting Output pointing character, by the Formatting Output pointing character and specific output parameter group
Composite characters string, the daily record data together with the character string address of the substitution static data, as generation.
4. the generation method of daily record data according to claim 2, which is characterized in that
The particular piece of data is read-only data section；In 32 systems, the first address of the read-only data section is 4 bytes
Data；The first address of the read-only data section described in 64 systems is the data of 8 bytes.
5. a kind of analytic method of daily record data, which is characterized in that comprise the steps of:
Whether judge in daily record data to be resolved comprising address information；
If obtaining character string indicated by the address information comprising the address information；
The character string that will acquire substitutes the address information in the daily record data, the daily record data after being parsed；
It wherein, include following sub-step: in executable target in the step of character string indicated by described acquisition address information
In particular piece of data in file, address pointed by the address information is found；
Character is read since the address of the direction, until reading end mark or reading first Formatting Output instruction
Character, and the Formatting Output pointing character is not read；
Using the character string read as character string indicated by the address information.
6. a kind of generating means of daily record data, characterized by comprising:
Compiling link module static data compiling link can be performed to this for when file destination can be performed in compiling link
In a particular piece of data in file destination；
Static data judgment module, for whether judging in daily record data to be generated comprising static data；Generation module is used for
When the static data judgment module determines comprising the static data, the character string address for storing the static data is substituted
The static data generates daily record data；
Wherein, the static data judgment module is by detecting in daily record data to be generated, if includes specific storage
Whether address judges in the daily record data to be generated comprising static data；Wherein, the specific storage address be in
Address between the initial address and end address of the particular piece of data, if including in the daily record data to be generated
Specific storage address then determines in the daily record data to be generated comprising static data.
7. the generating means of daily record data according to claim 6, which is characterized in that the generation module is specifically used for
By first address of the static data in the particular piece of data, the static data is substituted.
8. a kind of resolver of daily record data, characterized by comprising:
Address information judgment module, for whether judging in daily record data to be resolved comprising address information；
Character string obtains module, for obtaining the ground when the address information judgment module determines comprising the address information
Character string indicated by the information of location；
Parsing module, the character string for will acquire substitutes the address information in the daily record data, after being parsed
Daily record data；
Wherein, the character string acquisition module includes:
Submodule is searched, for finding pointed by the address information in the particular piece of data in executable file destination
Address；
Reading submodule, for reading character since the address of the direction, until reading end mark or reading first
A Formatting Output pointing character, and the Formatting Output pointing character is not read, using the character string read as describedly
Character string indicated by the information of location.
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| CN107423204B (en) * | 2017-06-30 | 2020-12-25 | 北京五八信息技术有限公司 | Processing method and device for operation log of application program and terminal |
| CN114116367B (en) * | 2020-08-25 | 2022-11-01 | 荣耀终端有限公司 | Method for generating log and electronic equipment |
| CN114257643B (en) * | 2022-01-28 | 2023-03-24 | 北京安帝科技有限公司 | Log transmission method and system |
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| CN102158349B (en) * | 2011-02-09 | 2016-03-30 | 中兴通讯股份有限公司 | A kind of log management apparatus and method |
| CN102768636B (en) * | 2011-05-05 | 2016-02-10 | 阿里巴巴集团控股有限公司 | A kind of daily record analytic method and device |
| CN102457401B (en) * | 2012-01-06 | 2014-07-30 | 北京星网锐捷网络技术有限公司 | Method, device and server for log simulation generation |
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Application publication date: 20170308 Assignee: Shanghai Li Ke Semiconductor Technology Co., Ltd. Assignor: Leadcore Technology Co., Ltd. Contract record no.: 2018990000159 Denomination of invention: Generation method and generation device of log data, and analysis method and analysis device of log data License type: Common License Record date: 20180615 |
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