CN105549985A - Method and system for enhancing reliability of Linux application system - Google Patents
Method and system for enhancing reliability of Linux application system Download PDFInfo
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- CN105549985A CN105549985A CN201410596956.2A CN201410596956A CN105549985A CN 105549985 A CN105549985 A CN 105549985A CN 201410596956 A CN201410596956 A CN 201410596956A CN 105549985 A CN105549985 A CN 105549985A
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Abstract
The invention discloses a method and a system for enhancing the reliability of a Linux application system. The method comprises the steps of performing backup storage on a Linux system file in a first partition of a storage device, and performing backup storage on an application system and configuration information of the application system in a second partition of the storage device, wherein the storage device is independent of a general disk; and during a Linux system starting stage, detecting the correctness of the Linux system file, an application and configuration information of the application through a program set in the storage device, and if the Linux system file, the application and the configuration information are incorrect, performing recovery by utilizing backup files in the first partition and the second partition. The method and the system have the beneficial effect that the reliability of the Linux application system is enhanced.
Description
Technical field
The present invention relates to and the invention belongs to LINUX system field, more particularly, relate to a kind of method and system strengthening Linux application system reliability.
Background technology
Linux is the class Unix operating system of a set of free use and Free propagation, is the operating system of a multi-user based on POSIX and UNIX, multitask, support multithreading and multi-CPU.It can run main unix tool software, application program and procotol.It supports 32 and 64 hardware.Linux inherits the design philosophy that Unix take network as core, is the multiple-user network operating system of a stable performance.(SuSE) Linux OS is born on October 5th, 1991 (this is the first time formal outwards announcement time).Linux also exists many different linux versions, but they all employ linux kernel.Linux can be arranged in various computer hardware equipment, such as mobile phone, panel computer, router, video game console, desk-top computer, large scale computer and supercomputer.User freely can be obtained by network or other approach, and can revise arbitrarily its source code.This is that other operating system is not accomplished.Just because of this point, from global countless programmer take part in Linux amendment, write work, programmer can change it according to the interest of oneself and inspiration, and this allows Linux absorb the elite of countless programmer, and its user also gets more and more.
But the system crash because the situations such as Linux system self problem or application system file corruption cause, the unreliable phenomenons such as machine of delaying all can be there is in the application system of overwhelming majority operating system based on linux.Current processing mode has two classes, and the first kind is ensured system crash by means such as application system backup, load balancing or can not be caused damage after machine of delaying.Equations of The Second Kind is that the security by strengthening application system self occurs system crash with reliably preventing it and delays machine.
Summary of the invention
The technical problem to be solved in the present invention is, all can there is the system crash because the situations such as Linux system self problem or application system file corruption cause, the unreliable phenomenon defects such as machine of delaying in the application system for above-mentioned overwhelming majority operating system based on linux of prior art, provide a kind of method strengthening Linux application system reliability.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of method strengthening Linux application system reliability, comprise the following steps: linux system file backup is stored in described memory device first subregion, by application system and its configuration information back-up storage in memory device second subregion, described memory device is independent of ordinary magnetic disc; Linux system unloading phase, by arranging program on a storage device, whether correctly detecting linux system file, if incorrect, utilize the linux system file backed up in memory device first subregion to recover, and restart linux system; Linux system unloading phase, in the correct situation of linux system file, by arranging program on a storage device, detecting application system and whether its configuration information is correct, if incorrect, utilizing the application system that backs up in memory device second subregion and its configuration information to recover.
In method of the present invention, after being also included in linux system startup, by arranging program on a storage device, whether correctly detect linux system file, if incorrect, restart linux system, this program logical, also detects application system and whether its configuration information content is correct, if incorrect, utilizes the application system that backs up in memory device second subregion and its configuration information to recover.
In method of the present invention, whether above-mentioned detection linux system file correctly comprises: obtain the information about linux system file health condition that linux kernel provides, judge that whether linux system file is correct according to the information of file health condition.
In method of the present invention, whether above-mentioned detection application system and its configuration information content correctly comprise: set up application system documents, in described application system documents record application system and application system configuration information, the path of critical file and hashed value, contrast the hashed value of the respective file in the hashed value in application system documents and the second subregion.
In method of the present invention, above-mentioned hashed value is md5 code.
In method of the present invention, above-mentioned memory device first subregion is set to read-only.
In method of the present invention, above-mentioned memory device comprises: cf card, solid state hard disc, USB flash disk, SD card.
The present invention solves its technical matters, present invention also offers a kind of system strengthening Linux application system reliability, comprises: the first zoning unit: for storing the backup of linux system file; Second zoning unit: for the backup of application system and its configuration information; First detecting unit: for the linux system unloading phase, detects institute and whether correctly to run linux system file, if incorrect, utilize the linux system file backed up in memory device first zoning unit to carry out recovering and restarting linux system; Second detecting unit: linux system unloading phase, in the correct situation of linux system file, whether detection application system and its configuration information content correctly, if incorrect, utilize the back-up application system of memory device second zoning unit and its configuration information to recover; The first described zoning unit, the second zoning unit, the first detecting unit, the second detecting unit are positioned on memory device, and described memory device is independent of common hard disc.
In the systems described in the present invention, also comprise: Linux guards unit: be positioned on memory device, for obtaining the information about linux system file health condition that linux kernel provides, judge that whether linux system file is correct according to the information of file health condition, if incorrect, restart linux system.
In the systems described in the present invention, also comprise application and guard unit: be positioned on memory device, for setting up application system documents, described application system documents is for recording path and the md5 code of critical file in application system and application system configuration information, the md5 code of the md5 code in application system documents and the respective file in the second subregion is contrasted, judge application system and application system configuration information whether correct, utilize the application system that backs up in memory device second zoning unit if incorrect and answer the configuration information of system to recover.
In the systems described in the present invention, described memory device comprises: cf card, solid state hard disc, USB flash disk, SD card.
Implement the method and system of enhancing Linux application system reliability of the present invention, there is following beneficial effect: by linux system unloading phase, whether correctly detect the linux system file run, if incorrect, backup file in the first subregion is utilized to recover, improve the reliability of linux system, indirectly for Linux application system provides the reliability that a good running environment directly enhances Linux application system itself; By the linux system unloading phase, detect application system and whether its configuration information content is correct, if incorrect, utilize backup file in the second subregion to recover, directly enhance the reliability of Linux application system itself.
After linux system starts, detect linux system file, application system and its configuration information, if content is incorrect, then utilizes respective well-behaved file to repair, further increase the reliability of Linux application system.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the process flow diagram that the present invention strengthens method first embodiment of Linux application system reliability;
Fig. 2 is the structural drawing that the present invention strengthens system second embodiment of Linux application system reliability.
Embodiment
In order to there be understanding clearly to technical characteristic of the present invention, object and effect, now contrast accompanying drawing and describe the specific embodiment of the present invention in detail.
The present invention of the present invention shown in Fig. 1 strengthens the process flow diagram of method first embodiment of Linux application system reliability, and its specific works flow process is as follows:
Embodiment one:
General computing machine is equipped with common disk, and linux system is arranged on ordinary magnetic disc, also application system is housed simultaneously.Following steps flow process is all complete under the condition be communicated with computing machine at memory device.
Cf card arranges two subregions; linux system file (ensureing all system files that linux system normally runs) is carried out first subregion of back-up storage to cf card; in order to form better protection to the system file of the first Area-Specific Archive; first subregion can be set to a reading mode; avoid at undertension, in the situations such as abnormal power-down, the memory device such as cf dish holds flimsy problem.By application system and answer the configuration information back-up storage of system in cf card second subregion, here can compress in back-up storage process, reduce the space that it takies, therefore when the file in this Liang Ge district of later use recovers, also decompression procedure must be comprised, if application system itself does not comprise configuration information, then without the need to backing up configuration information.If the first subregion is not set to a reading mode here, the first above-mentioned subregion and the second subregion are without substantive difference, only representative stores two positions of different file, if this memory device itself does not comprise two at least two subregions, then should set up at least two subregions in advance.Subregion essence two different partition holdings (C, D, E disk-form of computing machine) on cf card and above-mentioned ordinary magnetic disc.Carrying out backup to these files is receive on computing machine by being linked by cf, and completed by artificial operation, following operating process also completes under memory device is connected to computing machine prerequisite.In other embodiments, cf card also can use the memory devices such as solid state hard disc, USB flash disk, SD card instead, as long as these memory devices are not the ordinary magnetic discs that computing machine itself is installed, but memory device here can comprise the ordinary magnetic disc additionally increased again on computers.
The unloading phase of computer program, by the program arranged on cf card, whether detecting institute, to run linux system file correct, and the mode that whether detection linux system file is correct is here completed by the information of reception kernel about file system health status.As when read-write error appears in disk, the type information (dmesg file can obtain) of kernel can obtain: printed words such as " EXT4-fserror ".If undetected result is correct, then proceed to next step, if incorrect, backup file then by calling cf card first subregion linux system is repaired, and restarts, again detect after having repaired, if incorrect, again repair, until system file is correct.
Linux system unloading phase, when linux system file detect by after, by arranging program on a storage device, also detect application system and its configuration information content whether correct, here the detection of application system and its configuration information is by arranging a special documents, record path and the md5 code of the critical file (specifically which file is determined by concrete application) of application system in ordinary magnetic disc.Here md5 code (hashed value) carries out md5 hashing to above-mentioned critical file to obtain, hashed value refers to the data of one section of random length by a kind of data processing an acquisition fixed length, this process is called hash function, the value obtained is hashed value, this is existing technology, and md5 is a kind of hashing function.Such as the title of daily record, source address, content etc., are placed in a continuous print internal memory, then add up mutually to the value of each byte of this section of internal memory, are exactly a kind of hashing, and the value of addition is exactly hashed value.Carry out hashing and also have a lot of processing mode, must not specify here is in other embodiments md5 value, other can be adopted to process and obtain its hashed value, and in embodiments of the invention, md5 only represents a kind of processing mode of the present invention, but is not limited to this.
Follow the value recorded in the special file in backup subregion whether consistent by the md5 code of the respective file in contrast application partition, if consistent, this time start, if inconsistent, utilize the application system that backs up in memory device second subregion and answer the configuration information of system to recover, after recovery completes, without the need to restarting application system, because Linux just just runs, application system is not really run.Correct after ensureing application system and its configuration information reparation.In other embodiments, after can repairing, again detect, if incorrect, again repair, until content is consistent, if application program itself requires to restart after repairing, then restart system.In invention, recording path and the md5 code of the critical file of application system in documents, is preset in the program on a storage device of setting.
In another embodiment, method belonging to it is substantially identical with embodiment one, its difference is only that the program be arranged on cf card can also increase finger daemon, this is guarded and carries out realizing following function: whether (1) makes regular check on linux system file correct, if incorrect, restart linux system reparation, until file content is correct, (2) application system is made regular check on and whether application system configuration information is correct, utilize the application system that backs up in memory device second subregion if incorrect and answer the configuration information of system to recover, reparation can restart application system.Function (1) and basic step in (2) are with similar at system start-up phase, but this checks that every 5s carries out once, carries out in system whole service process always.In other embodiments, check that every 5s carries out once can using other times interval instead or monitoring in real time, these two functions also only can occur one separately in other embodiments, namely only detect for linux system or application system, just the reliability of application system is not as the present embodiment.
Embodiment two:
As shown in Figure 2, it strengthens the structural drawing of system the 3rd embodiment of Linux application system reliability for the present invention, wherein 21 is the common hard disc of computing machine, and application system 211 and Linux212 are installed on common hard disc, 22 is memory device, and this memory device is independent of common hard disc.
System of the present invention comprises the first zoning unit 221, second zoning unit 223, first detecting unit 222, second detecting unit 224.First zoning unit and the second zoning unit are one section of physical memory, and its form is identical with the form of C, D, E dish of computing machine.Wherein the first zoning unit is for storing linux system file (comprising is all system files that Linux normally runs) backup, in order to linux system file suffers malice change, this subregion is set to a reading mode; Second zoning unit is used for the backup of storage application system and its configuration information, if application system itself does not comprise configuration information, then stores without the need to backup.First detecting unit and the second detecting unit are the program codes be positioned in storage unit.Wherein the first detecting unit is used for linux system unloading phase, detection linux system file authentication is detected, its detection method is consistent with method in embodiment one, if incorrect, the linux system file backed up in memory device first zoning unit is utilized to carry out recovering and restarting linux system, after restarting, the first detecting unit can carry out work again, if again detect incorrect, continue to repair, until Linux repairs correct.Second detecting unit is used for linux system unloading phase, in the correct situation of linux system file, detect application system and its configuration information content whether correct, if incorrect, utilize the back-up application system of memory device second zoning unit and its configuration information to recover, this element only just carries out above-mentioned steps after the first detecting unit is correct by linux system reparation.
In another embodiment, in order to strengthen the reliability of the application program based on linux system further, system is also provided with Linux and guards unit.It is also be positioned at program code on memory device that Linux guards unit, for obtaining the information about linux system file health condition that linux kernel provides, judge that whether linux system file is correct according to the information of file health condition, if incorrect, restart linux system.
In another embodiment, in order to strengthen the reliability of the application program based on linux system further, system is also provided with application and guards unit.It is also be positioned at program code on memory device that Linux guards unit, for setting up application system documents, described application system documents is for recording path and the md5 code of critical file in application system and application system configuration information, the md5 code of the md5 code in application system documents and the respective file in the second zoning unit is contrasted, judge application system and application system configuration information whether correct, utilize the application system that backs up in memory device second zoning unit if incorrect and answer the configuration information of system to recover, application system is restarted after recovery.Application programs again inspection and repair can be carried out, until application system is correct after restarting.
In other embodiments, Linux can be comprised simultaneously and guard unit and unit is guarded in application.In the system of enhancing Linux application system reliability of the present invention, the first above-mentioned detecting unit, the second detecting unit, guard unit and application and guard unit and can be respectively independently program, perform respective function respectively, also can be that a routine package contains each above-mentioned functional unit, unit carries out respective operation in order.
Whether the linux system file that described detection runs correctly comprises: obtain the information about linux system file health condition that linux kernel provides, judge that whether linux system file is correct according to the information of file health condition.
By reference to the accompanying drawings embodiments of the invention are described above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; instead of it is restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not departing under the ambit that present inventive concept and claim protect, also can make a lot of form, these all belong within protection of the present invention.
Claims (10)
1. strengthen a method for Linux application system reliability, it is characterized in that, comprise the following steps:
S1, be stored in memory device first subregion by linux system file backup, by application system and its configuration information back-up storage in memory device second subregion, described memory device is independent of ordinary magnetic disc;
S2, linux system unloading phase, by being arranged on the program on described memory device, whether correctly detect the linux system file run, if incorrect, utilize the linux system file backed up in memory device first subregion to recover, and restart linux system;
S3, linux system unloading phase, in the correct situation of linux system file, by being arranged on the program on described memory device, whether correctly detect application system and its configuration information, if incorrect, utilize the application system that backs up in described memory device second subregion and its configuration information to recover.
2. method according to claim 1, it is characterized in that, also comprise: after linux system starts, by being arranged on the program on described memory device, whether correctly detect the linux system file that runs, if incorrect, restart linux system, by described Programmable detection application system and its configuration information content whether correct, if incorrect, utilize the application system that backs up in described memory device second subregion and its configuration information to recover, after recovery, restart application system.
3. method according to claim 1 and 2, it is characterized in that, whether the linux system file that described detection runs correctly comprises: obtain the information about linux system file health condition that linux kernel provides, judge that whether linux system file is correct according to the information of file health condition.
4. method according to claim 1 and 2, it is characterized in that, whether described detection application system and its configuration information content correctly comprise: set up application system documents, in described application system documents record application system and application system configuration information, the path of critical file and hashed value, contrast the hashed value of the respective file in the hashed value in application system documents and the second subregion.
5. method as claimed in claim 4, described hashed value is md5 code.
6. method according to claim 1, is characterized in that, described memory device first subregion is set to read-only.
7. the method for claim 1, is characterized in that, described memory device comprises: cf card, solid state hard disc, USB flash disk, SD card.
8. strengthen a system for Linux application system reliability, it is characterized in that comprising:
First zoning unit: for storing the backup of linux system file;
Second zoning unit: for the backup of storage application system and its configuration information;
First detecting unit: for the linux system unloading phase, detects institute and whether correctly to run linux system file, if incorrect, utilize the linux system file backed up in memory device first zoning unit to carry out recovering and restarting linux system;
Second detecting unit: for the linux system unloading phase, in the correct situation of linux system file, whether detection application system and its configuration information content correctly, if incorrect, utilize the back-up application system of memory device second zoning unit and its configuration information to recover;
The first described zoning unit, the second zoning unit, the first detecting unit, the second detecting unit are positioned on memory device, and described memory device is independent of common hard disc.
9. system according to claim 8, characterized by further comprising:
Linux guards unit: be positioned on memory device, for obtaining the information about linux system file health condition that linux kernel provides, judge that whether run linux system file is correct according to the information of file health condition, if incorrect, restart linux system.
10. the system according to Claim 8, in 9 described in any one, characterized by further comprising:
Unit is guarded in application: be positioned on memory device, for setting up application system documents, described application system documents is for recording path and the hashed value of critical file in application system and application system configuration information, the hashed value of the respective file in the hash code in application system documents and the second zoning unit is contrasted, judge application system and application system configuration information whether correct, utilize the application system that backs up in memory device second zoning unit if incorrect and answer the configuration information of system to recover, application system is restarted after recovery.
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| CN111158952A (en) * | 2019-12-12 | 2020-05-15 | 浙江华云信息科技有限公司 | Method for automatically backing up configuration file by using external storage equipment |
| CN113094210A (en) * | 2021-04-21 | 2021-07-09 | 北京鼎普科技股份有限公司 | Windows platform process and file guarding method and system |
| CN114780289A (en) * | 2022-04-01 | 2022-07-22 | 深圳市爱为物联科技有限公司 | Security protection camera downtime recovery method |
| CN118426858A (en) * | 2024-04-12 | 2024-08-02 | 珠海瑞捷电气股份有限公司 | Shell-based embedded Linux system application program starting method and system |
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Application publication date: 20160504 |
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