CN108319541A - A kind of log file analysis method and device - Google Patents
A kind of log file analysis method and device Download PDFInfo
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- CN108319541A CN108319541A CN201710030050.8A CN201710030050A CN108319541A CN 108319541 A CN108319541 A CN 108319541A CN 201710030050 A CN201710030050 A CN 201710030050A CN 108319541 A CN108319541 A CN 108319541A
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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
- G06F11/3466—Performance evaluation by tracing or monitoring
- G06F11/3476—Data logging
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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
- G06F11/3065—Monitoring arrangements determined by the means or processing involved in reporting the monitored 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
- G06F16/18—File system types
- G06F16/1805—Append-only file systems, e.g. using logs or journals to store data
- G06F16/1815—Journaling file systems
Abstract
The embodiment of the invention discloses a kind of log file analysis method and device, method includes：The file head pointer pre-established to journal file to be analyzed is obtained, the preset length of the first address of textual data and textual data in journal file to be analyzed is obtained according to file head pointer；According to the first address of the textual data, the textual data for the preset length for reaching the textual data and analysis are obtained.Textual data to be analyzed is quickly found using the first address of the textual data stored in file head pointer, the first address of the textual data to be analyzed only is navigated to, the textual data of acquisition can just be cached, is analyzed, the memory of consumption is few, to realize the fast resolving of file content.
Description
Technical field
The present embodiments relate to fields of communication technology, and in particular to a kind of log file analysis method and device.
Background technology
Journal file is typically the record of system or certain softwares to certain completed processing, so that future is as ginseng
It examines, some technical staff can check whether there is some records that report an error, then reported an error, looked for according to it by checking journal file
To the root of problem.
ADT equipment in the process of running, can generate the journal file very as large as 1T.Original log file analysis method
There are mainly two types of, the first is with third party's tool open and to analyze journal file, such as using third party's tool manual analysis
Using the data in some pin function analysis journal file of third party's tool, which owns journal file
Content is stored in memory, if journal file is generally big, opening can consume memory very much, then greatly a bit, open file and just fail,
Analysis is not known where to begin more, even if opening successfully, the workload of manual analysis is well imagined, and is easy error, and it is accurate to lose.It is another
Kind of method be provided using operating system /O function operations file (reading data line by line), due to the length of journal file text
Indefinite, I/O functions at the time of reading, can not determine reading byte length, if long, meeting wasting space, if too short, in journal file
Appearance can be read not entirely, data analysis to be caused to have deviation.I/O functions are related to deep copy problem, additional space are needed to store number
According to, and having a big chunk file that need not analyze in journal file, analyze speed can be slow and be easy in this way for institute
Error in the case that with high performance requirements, can influence the overall performance of program in addition, I/O functions are choke functions.
Invention content
Since existing log file analysis method excessively consumes memory, causes file not open or analyze speed is slow asks
Topic, a kind of log file analysis method of proposition of the embodiment of the present invention and device.
In a first aspect, the embodiment of the present invention proposes a kind of log file analysis method, including：
Obtain the file head pointer pre-established to journal file to be analyzed；
The first address and text number of textual data in the journal file to be analyzed are obtained according to the file head pointer
According to preset length；
According to the first address of the textual data, obtains the textual data for the preset length for reaching the textual data and divide
Analysis.
Optionally, the preset length of the first address of the textual data and textual data is one-to-one relationship, each
The preset length of the first address of textual data and corresponding textual data is as a unit, and Unit at least two are in the file header
Layout rules in pointer are：According in the file head pointer by the sequence of first character section to a last byte just
The mode that the first address of literary data is sequentially increased arranges Unit at least two；
Correspondingly, the first address that textual data in the journal file to be analyzed is obtained according to the file head pointer
And the preset length of textual data, including：
According in the file head pointer by the sequence of first character section to a last byte obtain successively described in wait for point
Analyse the preset length of the first address of textual data and corresponding textual data in journal file.
Optionally, before the file head pointer that the acquisition pre-establishes journal file to be analyzed, the method is also
Including：
The journal file textual data to be analyzed is divided into the textual data of preset quantity and preset length；
Obtain the first address of each textual data, and by the pre- of the first address of each textual data and each textual data
If length is stored in the file head pointer obtained in advance.
Optionally, the method further includes：
Analysis result is obtained, and will be in analysis result storage to storage device.
Optionally, the journal file to be analyzed is the journal file that the operation of ADT equipment generates.
Second aspect, the present invention also provides a kind of log file analysis devices, including：
First acquisition unit, for obtaining the file head pointer pre-established to journal file to be analyzed；
Second acquisition unit, for obtaining textual data in the journal file to be analyzed according to the file head pointer
The preset length of first address and textual data；
Analytic unit obtains the preset length for reaching the textual data for the first address according to the textual data
Textual data and analysis.
Optionally, the preset length of the first address of the textual data and textual data is one-to-one relationship, each
The preset length of the first address of textual data and corresponding textual data is as a unit, and Unit at least two are in the file header
Layout rules in pointer are：According in the file head pointer by the sequence of first character section to a last byte just
The mode that the first address of literary data is sequentially increased arranges Unit at least two；
Correspondingly, the second acquisition unit, is additionally operable to：
According in the file head pointer by the sequence of first character section to a last byte obtain successively described in wait for point
Analyse the preset length of the first address of textual data and corresponding textual data in journal file.
Optionally, described device further includes：
Cutting unit, for it is described obtain the file head pointer that is pre-established to journal file to be analyzed before, by institute
State the textual data that journal file textual data to be analyzed is divided into preset quantity and preset length；
First storage unit, the first address for obtaining each textual data, and by the first address of each textual data with
And the preset length of each textual data is stored in the file head pointer obtained in advance.
Optionally, described device further includes：
Second storage unit, for obtaining analysis result, and will be in analysis result storage to storage device.
Optionally, the journal file to be analyzed is the journal file that the operation of ADT equipment generates.By above-mentioned technical proposal
It is found that
The embodiment of the present invention is quickly found to be analyzed using the first address of the textual data stored in file head pointer
Textual data only navigates to the first address (finding textual data) of the textual data to be analyzed, just can be to acquisition just
Literary data buffer storage, analysis, to realize that the fast resolving of file content, the method for the embodiment of the present invention belong to shallow copy, consumption
Memory it is few, fit saving computer, stack, the heap space of benefit.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other attached drawings are obtained according to these figures.
Fig. 1 is a kind of flow diagram for log file analysis method that one embodiment of the invention provides；
Fig. 2 is a kind of flow diagram for log file analysis method that another embodiment of the present invention provides；
Fig. 3 is a kind of structural schematic diagram for log file analysis device that one embodiment of the invention provides.
Specific implementation mode
Below in conjunction with the accompanying drawings, the specific implementation mode of the present invention is further described.Following embodiment is only used for more
Technical scheme of the present invention is clearly demonstrated, and not intended to limit the protection scope of the present invention.
Fig. 1 shows a kind of flow diagram of log file analysis method provided in this embodiment.
A kind of log file analysis method as shown in Figure 1, including：
The file head pointer that S101, acquisition pre-establish journal file to be analyzed；
It is worth noting that can apply an address as file head pointer in memory in advance.
S102, the first address of textual data and just is obtained in the journal file to be analyzed according to the file head pointer
The preset length of literary data；
It is worth noting that the length can be byte number.
It is worth noting that the journal file to be analyzed in the present invention can be the daily record that the operation of ADT equipment generates
File.This kind of journal file is generally bigger.
S103, according to the first address of the textual data, obtain the text number for the preset length for reaching the textual data
According to and analyze.
In embodiments of the present invention, it is to start to obtain using the first address of the textual data as initial address to reach described
The textual data of the preset length of textual data and analysis.Due to raw log files content, recorded with behavior unit
, after File Mapping, capable separator is resolvable to ' n ', so, the present invention in obtain textual data method use
Gluttonous algorithm, up to encountering character since base address (first address of textual data) ' n ' when as data unit (i.e. with
Behavior unit) it is obtained, until the length of the textual data of acquisition reaches the preset length of current textual data and divide
Analysis.
In the present embodiment, when obtaining textual data, function fread can be used, can return and actually get
Byte number can know the length of the textual data of acquisition.
The embodiment of the present invention is quickly found to be analyzed using the first address of the textual data stored in file head pointer
Textual data only navigates to the first address (finding textual data) of the textual data to be analyzed, just can be to acquisition just
Literary data buffer storage, analysis, the memory of consumption is few, to realize the fast resolving of file content, the side of the embodiment of the present invention
It is owned by France to fit saving computer, stack, the heap space of benefit in shallow copy, parsing 1T files may be implemented.
It is worth noting that when storing above- mentioned information into file head pointer, it is suitable generally according to the text of journal file
The relevant information of each textual data correspondence is stored in n-th of byte to m-th of byte of file head pointer by sequence successively, m>
N, if second byte stores the first address of first textual data in file head pointer, third byte stores first text
The preset length of data, the 4th byte store the first address of second textual data, and the 5th byte stores second text
Preset length ... the of data, a to the last textual data, and the reading order of file head pointer is also from first character section
To a last byte, that is, the first address of the textual data and the preset length of textual data are one-to-one relationship, often
The preset length of the first address of a textual data and corresponding textual data is as a unit, and Unit at least two are in the file
Layout rules in head pointer are：According in the file head pointer by the sequence of first character section to a last byte
The mode that the first address of textual data is sequentially increased arranges Unit at least two；
Correspondingly, the step S102, including：
According in the file head pointer by the sequence of first character section to a last byte obtain successively described in wait for point
Analyse the preset length of the first address of textual data and corresponding textual data in journal file.
The textual data of the textual data and the journal file to be analyzed that are obtained in the way of the embodiment of the present invention
Sequence consensus, therefore can ensure that the textual data obtained is coherent, convenient for the content of preferably analysis journal file, to look for
The problem of being run to equipment.
Fig. 2 is a kind of flow diagram for log file analysis method that another embodiment of the present invention provides.
A kind of log file analysis method as shown in Figure 2, including：
S201, the text number that the journal file textual data to be analyzed is divided into preset quantity and preset length
According to；
Such as：The journal file textual data being analysed to is divided into 10 textual datas, and sets each text
Length, length can be equal, can not also wait.
Also the journal file textual data to be analyzed can not be divided, i.e., only there are one textual datas.
S202, the first address for obtaining each textual data, and by the first address of each textual data and each text number
According to preset length be stored in the file head pointer obtained in advance.
It is worth noting that can apply an address as file head pointer in memory in advance.
Used in the embodiment of the present invention is the file mapping technology that class unix system provides.
The file head pointer that S203, acquisition pre-establish journal file to be analyzed；
S204, the first address of textual data and just is obtained in the journal file to be analyzed according to the file head pointer
The preset length of literary data；
It is worth noting that the length can be byte number.
It is worth noting that the journal file to be analyzed in the present invention can be the daily record that the operation of ADT equipment generates
File.This kind of journal file is generally bigger.
S205, according to the first address of the textual data, obtain the text number for the preset length for reaching the textual data
According to and analyze.
In embodiments of the present invention, it is to start to obtain using the first address of the textual data as initial address to reach described
The textual data of the preset length of textual data and analysis.Due to raw log files content, recorded with behavior unit
, after File Mapping, capable separator is resolvable to ' n ', so, the present invention in obtain textual data method use
Gluttonous algorithm, up to encountering character since base address (first address of textual data) ' n ' when as data unit (i.e. with
Behavior unit) it is obtained, until the length of the textual data of acquisition reaches the preset length of current textual data and divide
Analysis.
In the present embodiment, when obtaining textual data, function fread can be used, can return and actually get
Byte number can know the length of the textual data of acquisition.
The embodiment of the present invention is quickly found to be analyzed using the first address of the textual data stored in file head pointer
Textual data only navigates to the first address (finding textual data) of the textual data to be analyzed, just can be to acquisition just
Literary data buffer storage, analysis, the memory of consumption is few, so as to realize the fast resolving of file content, the embodiment of the present invention
Method belongs to shallow copy, fits saving computer, stack, the heap space of benefit, and parsing 1T files may be implemented.
It is worth noting that when storing above- mentioned information into file head pointer, it is suitable generally according to the text of journal file
The relevant information of each textual data correspondence is stored in n-th of byte to m-th of byte of file head pointer by sequence successively, m>
N, if second byte stores the first address of first textual data in file head pointer, third byte stores first text
The preset length of data, the 4th byte store the first address of second textual data, and the 5th byte stores second text
Preset length ... the of data, a to the last textual data, and the reading order of file head pointer is also from first character section
To a last byte, that is, the first address of the textual data and the preset length of textual data are one-to-one relationship, often
The preset length of the first address of a textual data and corresponding textual data is as a unit, and Unit at least two are in the file
Layout rules in head pointer are：According in the file head pointer by the sequence of first character section to a last byte
The mode that the first address of textual data is sequentially increased arranges Unit at least two；
Correspondingly, the step S204, including：
According in the file head pointer by the sequence of first character section to a last byte obtain successively described in wait for point
Analyse the preset length of the first address of textual data and corresponding textual data in journal file.
The textual data of the textual data and the journal file to be analyzed that are obtained in the way of the embodiment of the present invention
Sequence consensus, therefore can ensure that the textual data obtained is coherent, convenient for the content of preferably analysis journal file, to look for
The problem of being run to equipment.
On the basis of above method embodiment, in order to preserve analysis result to check and to handle, as a kind of preferred
Embodiment, the method further include：
Analysis result is obtained, and will be in analysis result storage to storage device.
Fig. 3 shows a kind of structural schematic diagram of log file analysis device provided in this embodiment.
A kind of log file analysis device as shown in Figure 3, including：
First acquisition unit 301, for obtaining the file head pointer pre-established to journal file to be analyzed；
Second acquisition unit 302, for obtaining text number in the journal file to be analyzed according to the file head pointer
According to first address and textual data preset length；
Analytic unit 303 obtains the default length for reaching the textual data for the first address according to the textual data
The textual data of degree and analysis.
Specifically, the first acquisition unit 301 obtains the file head pointer pre-established to journal file to be analyzed；
The second acquisition unit 302 obtains the first address of textual data in the journal file to be analyzed according to the file head pointer
And the preset length of textual data；The analytic unit 303 according to the first address of the textual data, acquisition reach it is described just
The textual data of the preset length of literary data and analysis.
The embodiment of the present invention is quickly found to be analyzed using the first address of the textual data stored in file head pointer
Textual data only navigates to the first address (finding textual data) of the textual data to be analyzed, just can be to acquisition just
Literary data buffer storage, analysis, the memory of consumption is few, so as to realize the fast resolving of file content, the embodiment of the present invention
Method belongs to shallow copy, fits saving computer, stack, the heap space of benefit, and parsing 1T files may be implemented.
The first address of the textual data and the preset length of textual data are one-to-one relationship, each textual data
First address and corresponding textual data preset length as a unit, Unit at least two are in the file head pointer
Layout rules are：According in the file head pointer by the textual data of first character section to the sequence of a last byte
The mode that first address is sequentially increased arranges Unit at least two；
On the basis of above-mentioned apparatus embodiment, as a kind of preferred embodiment, correspondingly, the second acquisition unit
302, it is additionally operable to：
According in the file head pointer by the sequence of first character section to a last byte obtain successively described in wait for point
Analyse the preset length of the first address of textual data and corresponding textual data in journal file.
On the basis of above-mentioned apparatus embodiment, as a kind of preferred embodiment, described device further includes：
Cutting unit, for it is described obtain the file head pointer that is pre-established to journal file to be analyzed before, by institute
State the textual data that journal file textual data to be analyzed is divided into preset quantity and preset length；
First storage unit, the first address for obtaining each textual data, and by the first address of each textual data with
And the preset length of each textual data is stored in the file head pointer obtained in advance.
On the basis of above-mentioned apparatus embodiment, as a kind of preferred embodiment, described device further includes：
Second storage unit, for obtaining analysis result, and will be in analysis result storage to storage device.
On the basis of above-mentioned apparatus embodiment, as a kind of preferred embodiment, the journal file to be analyzed is ADT
The journal file that equipment operation generates.
Log file analysis device described in the present embodiment can be used for executing above method embodiment, principle and technology
Effect is similar, and details are not described herein again.
The apparatus embodiments described above are merely exemplary, wherein the unit illustrated as separating component can
It is physically separated with being or may not be, the component shown as unit may or may not be physics list
Member, you can be located at a place, or may be distributed over multiple network units.It can be selected according to the actual needs
In some or all of module achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying creativeness
Labour in the case of, you can to understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It is realized by the mode of software plus required general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on
Stating technical solution, substantially the part that contributes to existing technology can be expressed in the form of software products in other words, should
Computer software product can store in a computer-readable storage medium, such as ROM/RAM, magnetic disc, CD, including several fingers
It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation
Method described in certain parts of example or embodiment.
It should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although reference
Invention is explained in detail for previous embodiment, it will be understood by those of ordinary skill in the art that：It still can be right
Technical solution recorded in foregoing embodiments is modified or equivalent replacement of some of the technical features；And this
A little modification or replacements, the spirit and model of various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (10)
1. a kind of log file analysis method, which is characterized in that including：
Obtain the file head pointer pre-established to journal file to be analyzed；
The first address of textual data in the journal file to be analyzed and textual data are obtained according to the file head pointer
Preset length；
According to the first address of the textual data, the textual data for the preset length for reaching the textual data and analysis are obtained.
2. according to the method described in claim 1, it is characterized in that, the textual data first address and textual data it is pre-
If length is one-to-one relationship, the preset length of the first address of each textual data and corresponding textual data is as a list
Member, layout rules of the Unit at least two in the file head pointer are：According in the file head pointer by first
The mode that the first address of byte to the textual data of the sequence of a last byte is sequentially increased arranges Unit at least two；
Correspondingly, it is described according to the file head pointer obtain in the journal file to be analyzed the first address of textual data and
The preset length of textual data, including：
The day to be analyzed is obtained by the sequence of first character section to a last byte successively according in the file head pointer
The preset length of the first address of textual data and corresponding textual data in will file.
3. according to the method described in claim 1, it is characterized in that, what the acquisition pre-established journal file to be analyzed
Before file head pointer, the method further includes：
The journal file textual data to be analyzed is divided into the textual data of preset quantity and preset length；
Obtain the first address of each textual data, and by the default length of the first address of each textual data and each textual data
Degree is stored in the file head pointer obtained in advance.
4. according to the method described in claim 1, it is characterized in that, the method further includes：
Analysis result is obtained, and will be in analysis result storage to storage device.
5. according to the described method of any one of claim 1-4, which is characterized in that the journal file to be analyzed is ADT
The journal file that equipment operation generates.
6. a kind of log file analysis device, which is characterized in that including：
First acquisition unit, for obtaining the file head pointer pre-established to journal file to be analyzed；
Second acquisition unit, the first ground for obtaining textual data in the journal file to be analyzed according to the file head pointer
The preset length of location and textual data；
Analytic unit, for the first address according to the textual data, acquisition is reaching the preset length of the textual data just
Literary data are simultaneously analyzed.
7. device according to claim 6, which is characterized in that the first address of the textual data and textual data it is pre-
If length is one-to-one relationship, the preset length of the first address of each textual data and corresponding textual data is as a list
Member, layout rules of the Unit at least two in the file head pointer are：According in the file head pointer by first
The mode that the first address of byte to the textual data of the sequence of a last byte is sequentially increased arranges Unit at least two；
Correspondingly, the second acquisition unit, is additionally operable to：
The day to be analyzed is obtained by the sequence of first character section to a last byte successively according in the file head pointer
The preset length of the first address of textual data and corresponding textual data in will file.
8. device according to claim 6, which is characterized in that described device further includes：
Cutting unit, for it is described obtain the file head pointer that is pre-established to journal file to be analyzed before, waited for described
The journal file textual data of analysis is divided into the textual data of preset quantity and preset length；
First storage unit, the first address for obtaining each textual data, and by the first address of each textual data and often
The preset length of a textual data is stored in the file head pointer obtained in advance.
9. device according to claim 6, which is characterized in that described device further includes：
Second storage unit, for obtaining analysis result, and will be in analysis result storage to storage device.
10. according to the device described in any one of claim 6-9, which is characterized in that the journal file to be analyzed is ADT
The journal file that equipment operation generates.
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| CN201710030050.8A CN108319541A (en) | 2017-01-16 | 2017-01-16 | A kind of log file analysis method and device |
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