CN107918568A - A kind of method for preventing linux system from restarting failure - Google Patents
A kind of method for preventing linux system from restarting failure Download PDFInfo
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- CN107918568A CN107918568A CN201711112988.0A CN201711112988A CN107918568A CN 107918568 A CN107918568 A CN 107918568A CN 201711112988 A CN201711112988 A CN 201711112988A CN 107918568 A CN107918568 A CN 107918568A
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- storage medium
- file system
- root file
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- daily record
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
- G06F11/1415—Saving, restoring, recovering or retrying at system level
- G06F11/1438—Restarting or rejuvenating
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- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Abstract
This disclosure relates to a kind of method for preventing linux system from restarting failure, the method is replicated the root file system on CFast cards, with the root file system activation system of duplication in system start-up phase.The method can also be on the basis of the existing storage medium of system, in addition be used for record log using non-volatile memory medium, so that the root file system and journal file of system are recorded in different storage mediums.By using above-mentioned one or two kinds of methods, system writing machine meeting can be reduced by virtual hard disk technology, reduces disk write bad probability, and solve the problems, such as that system power failure file system crash influences system and starts automatic repair.By increasing individually storage medium recorded journal file, the logging ca of system is expanded, and without changing any original program.Even if SSD hard disk corruptions, business will not interrupt；The simply daily record nonvolatile storage function of loss；Daily record also has in memory to be preserved.
Description
Technical field
This disclosure relates to operating system, specifically, is related to a kind of method for preventing linux system from restarting failure.
Background technology
In the prior art, directly using the Linux system of ssd hard disks installation release, the Linux systems through so installing
System, system log caused by system operation can only local record daily record.And local record daily record needs to incite somebody to action by file system
Log recording, when daily record is not synchronized on disk also by the write operation of file system in time, can cause file system on disk
Unite inconsistent.If power off at this time, it is possible to fail in system start-up phase to file system check, so as to cause linux systems
System cannot normally start influence service operation.Simultaneously as there are a large amount of daily record write operations, disk write bad probability can be increased,
The system of also resulting in is not normally functioning.
The content of the invention
Based on this, the present disclosure proposes a kind of method for preventing linux system from restarting failure, for solving the above problems or
Subproblem.
A kind of method for preventing linux system from restarting failure, the method is in system start-up phase, by CFast cards
Root file system is replicated, with the root file system activation system of duplication.
In the method, wherein：The root file system of the duplication is stored in virtual disk, and the virtual disk exists
Built in memory.
In the method, wherein：The method before system closedown, to CFast cards on synchrodata.
In the method, wherein：Before the duplication, whether the root file system detected on CFast cards has damage,
If damaging automatic reparation root file system.
In the method, wherein：After root file system is repaired automatically, write-in CFast before last shutdown is prompted
The data of card are successfully written.
Compared with prior art, the above method that the disclosure provides has following advantageous effects：
(1) system writing machine meeting is reduced by virtual hard disk technology, reduces disk write bad probability.
(2) solve the problems, such as that system power failure file system crash influences system and starts automatic repair.
A kind of method for preventing linux system from restarting failure, the method is on the basis of the existing storage medium of system, separately
It is outer that record log is used for using non-volatile memory medium, so that the root file system and journal file of system are recorded in difference
Storage medium in.
In the method, wherein：Using the non-volatile memory medium in addition used as the second storage medium, described
Its subregion is mounted to daily record output directory by two storage mediums by being identified in script is started.
In the method, wherein：Using the existing storage medium of the system as the first storage medium；It is situated between in the second storage
When matter mounting is normal, periodically by the Log backup being recorded in the first storage medium into the second storage medium.
In the method, wherein：The second storage medium mounting judges normal through daily record application program.
In the method, wherein：The backup is write the log rollback in the first storage medium by daily record application program
Enter into the second storage medium and realize.
Compared with prior art, the above method that the disclosure provides has following advantageous effects：
(1) by increasing individually storage medium recorded journal file, the logging ca of system is expanded, and do not have to
Change any original program.
(2) even if SSD hard disk corruptions, business will not interrupt；The simply daily record nonvolatile storage function of loss；Daily record
Also have in memory and preserve.
Brief description of the drawings
On preventing linux system from restarting the method flow schematic diagram of failure in Fig. 1 disclosure one embodiment；
On preventing linux system from restarting the method flow schematic diagram of failure in another embodiment of Fig. 2 disclosure.
Embodiment
In one embodiment, there is provided a kind of method for preventing linux system from restarting failure, the method are opened in system
In the dynamic stage, the root file system on CFast cards is replicated, with the root file system activation system of duplication.
Preferably, a virtual disk (ramdisk) is built in memory, in system start-up phase, will be located at cfast cards
In root file system copy in the ramdisk disks in memory, it is root file system then to switch the ramdisk disks, is opened
Dynamic Linux system.Because root file system ramdisk is located in memory in itself, and the file system in cfast cards is not
Carry is needed, so any write operation will not be produced to cfast.
In this embodiment, system writing machine meeting is reduced by virtual hard disk technology, reduces disk write bad probability.
Therefore system starts failure problem caused by this programme can solve system cut-off file system crash at all.
In another embodiment, based on above-described embodiment, in the method, wherein：The method is in system closedown
Before, to synchrodata on CFast cards.Then, in system start-up phase, we first check that the basic system on cfast cards is
It is no to have damage, if damaging automatic reparation file system, then root file system is copied in ram disk again, and with file
Whether system repaired, and provided different prompt messages, reminded the data success for being used for confirming the preceding write-in CFast cards of last shutdown
Write-in.
In this embodiment, system caused by not only can solving system cut-off file system crash, which starts, unsuccessfully asks
Topic, and can also overcoming toward updating the data in CFast, not the situation abnormal power-down of synchronization, in this case it is still possible to cause in cfast
The problem of file system crash system can not normally start.
In one embodiment, there is provided a kind of method for preventing linux system from restarting failure, the method show in system
On the basis of having storage medium, record log is in addition used for using non-volatile memory medium, so that the root file system of system
System and journal file are recorded in different storage mediums.By increasing individually storage medium recorded journal file, expand
The logging ca of system, and without changing any original program.
Existing storage medium is usually cfast cards as system disk, on this basis, increase non-volatile memory medium use
In record log, so that the root file system and journal file of system are recorded in different storage mediums, can prevent from remembering
The storage medium damage of record daily record causes root file system normally to start.Preferably, non-volatile memory medium great Rong
The SSD hard disks of amount.
Preferably, in the method, it is described using the non-volatile memory medium in addition used as the second storage medium
Its subregion is mounted to daily record output directory "/mnt/log " by the second storage medium by being identified in script is started.
Preferably, in the method, using the existing storage medium of the system as the first storage medium；In the second storage
When medium mounting is normal, periodically by the Log backup being recorded in the first storage medium into the second storage medium.
Preferably, in the method, the second storage medium mounting judges normal through daily record application program.It is described
The daily record being recorded in ram disk is periodically synchronously write the by daily record program after judging that the mounting of current second storage medium is correct
In two storage mediums, otherwise log information is not write into the second storage medium.In this case, even if the second storage medium damages
Bad, business will not interrupt；The simply daily record nonvolatile storage function of loss；Daily record also has in memory to be preserved.
Preferably, in the method, the backup by daily record application program by the log rollback in the first storage medium
It is written in the second storage medium and realizes, so as to ensures completely log recording will not be caused to fail because of disk write.
In one embodiment, the method is using the flow chart activation system shown in Fig. 1.
In one embodiment, the method carries out daily record storage using the flow chart shown in Fig. 2.If daily record application program
Judge that current ssd hard disks mounting is incorrect or abnormal, then log information is not write into SSD hard disks, or timing is rejudged and worked as
Whether preceding ssd hard disks correctly mount, or terminate to exit the program.
In one embodiment, both use in system start-up phase, the root file system on CFast cards replicated,
With the root file system activation system of duplication, and increase non-volatile memory medium at the same time, make root file system and the day of system
Will file record prevents the storage medium of record log damages from causing root file system normal in different storage mediums
Start.
Although embodiment of the present invention is described above in association with attached drawing, the invention is not limited in above-mentioned
Specific embodiments and applications field, above-mentioned specific embodiment are only schematical, directiveness, rather than restricted
's.Those of ordinary skill in the art are under the enlightenment of this specification and in the scope for not departing from the claims in the present invention and being protected
In the case of, the form of many kinds can also be made, these belong to the row of protection of the invention.
Claims (10)
- A kind of 1. method for preventing linux system from restarting failure, it is characterised in that：The method is replicated the root file system on CFast cards, with the root file system of duplication in system start-up phase Activation system.
- 2. according to the method described in claim 1, it is characterized in that：The root file system of the duplication is stored in virtual disk, and the virtual disk is built in memory.
- 3. according to the method described in claim 1, it is characterized in that：The method before system closedown, to CFast cards on synchrodata.
- 4. according to the method described in claim 1, it is characterized in that：Before the duplication, whether the root file system detected on CFast cards has damage, if damaging automatic reparation root text Part system.
- 5. according to the method described in claim 4, it is characterized in that：After root file system is repaired automatically, the data of write-in CFast cards are successfully written before the last shutdown of prompting.
- A kind of 6. method for preventing linux system from restarting failure, it is characterised in that：In addition the method is used for record log on the basis of the existing storage medium of system using non-volatile memory medium, So that the root file system and journal file of system are recorded in different storage mediums.
- 7. according to the method described in claim 6, it is characterized in that：Using the non-volatile memory medium in addition used as the second storage medium, second storage medium is by starting foot Identified in this, and its subregion is mounted to daily record output directory.
- 8. according to the method described in claim 7, it is characterized in that：Using the existing storage medium of the system as the first storage medium；When the mounting of the second storage medium is normal, periodically the Log backup being recorded in the first storage medium is situated between to the second storage In matter.
- 9. according to the method described in claim 8, it is characterized in that：The second storage medium mounting judges normal through daily record application program.
- 10. according to the method described in claim 8, it is characterized in that：Log rollback in first storage medium is written in the second storage medium by the backup by daily record application program to be realized.
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| CN201711112988.0A CN107918568B (en) | 2017-11-13 | 2017-11-13 | Method for preventing Linux system from failing to restart |
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| CN201711112988.0A CN107918568B (en) | 2017-11-13 | 2017-11-13 | Method for preventing Linux system from failing to restart |
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| CN109491837A (en) * | 2018-11-01 | 2019-03-19 | 郑州云海信息技术有限公司 | A kind of the log fault-tolerance processing method and device of Nonvolatile memory reservoir |
| CN109710317A (en) * | 2018-11-16 | 2019-05-03 | 华为技术有限公司 | System start method, device, electronic equipment and storage medium |
| CN110502460A (en) * | 2018-05-16 | 2019-11-26 | 华为技术有限公司 | The method and node of data processing |
| CN110990187A (en) * | 2019-10-23 | 2020-04-10 | 北京全路通信信号研究设计院集团有限公司 | Memory inspection method and system |
| CN114253820A (en) * | 2022-02-25 | 2022-03-29 | 苏州浪潮智能科技有限公司 | Log recording method and related device |
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| CN107918568B (en) | 2021-03-30 |
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