CN106301844A - A kind of method and device realizing log transmission - Google Patents
A kind of method and device realizing log transmission Download PDFInfo
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- CN106301844A CN106301844A CN201510284692.1A CN201510284692A CN106301844A CN 106301844 A CN106301844 A CN 106301844A CN 201510284692 A CN201510284692 A CN 201510284692A CN 106301844 A CN106301844 A CN 106301844A
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- daily record
- information
- log server
- forwarding
- interface
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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 invention discloses a kind of method and device realizing log transmission, including: the forwarding information of the daily record of query generation from caching；According to the forwarding information of inquiry, by the daily record of fast-forwarding passage transmission generation to one or more log servers being pre-configured with.The inventive method is by inquiring about forwarding information from caching, utilize fast-forwarding passage that the daily record of generation is sent to one or more log servers pre-set, solve the performance issue that employing socket (SOCKET) mode cannot meet the log transmission of high-performance router.Simultaneously, it is to avoid use SOCKET mode owing to using individual equipment as the log server of multiple devices storage performance problem to occur.
Description
Technical field
The present invention relates to communication technology, a kind of method and device realizing log transmission.
Background technology
Along with the development of the Internet, network size expanding day, apply increasingly sophisticated.In order in time
The load of awareness network bandwidth and the situation that takies of business, find and detect abnormal flow, audit user
Internet behavior, and provide the forwarding facial canal of analytical data to manage for the network optimization in the future, dilatation, network
The collection analysis of event information imperative.The system day of the equipment such as router, switch, server
Will file (syslog, system log) (hereinafter referred to as daily record) records all events in system, logical
Cross the system record of checking and can grasp system status.Syslog system is able to receive that the daily record note of remote system
Record, processes the log recording of multiple system in a daily record in chronological order, and with journal file form
Deposit.Simultaneously in the case of without connecting multiple system, the multiple of reception can be checked a position
The journal file of system.
At present, the log server of major part storage syslog, use socket (SOCKET) mode,
Using UDP (UDP) as host-host protocol, by destination interface 514, (or other is fixed
The port numbers of justice) the log management configuration of equipment is sent to be provided with the log server of syslog system
In, log server automatically accepts daily record data and writes in journal file.
High-performance router generally uses distributed structure/architecture, needs by special network processing unit with corresponding
Hardware be used for E-Packet, the speed of individual interface reaches 40Gbps even 100Gbps, and integrated
Feature richness, substantial amounts of system journal produces in router work process.Use SOCKET mode without
Method meets the log transmission of high-performance router.And due to SOCKET mode many employings individual equipment conduct
The log server of multiple devices, it is impossible to meet the storage performance of storage high-performance router.It addition, adopt
The problem being also easy to when across a network carries out log transmission packet loss by SOCKET mode.
Summary of the invention
In order to solve above-mentioned technical problem, the present invention provides a kind of method and device realizing log transmission,
Disclosure satisfy that the requirement in speed and storage performance of the log transmission of high-performance router.
In order to reach the object of the invention, the invention provides a kind of method realizing log transmission, its feature
It is, including:
The forwarding information of the daily record of query generation from caching；
According to the forwarding information of inquiry, sent the daily record generated by fast-forwarding passage to being pre-configured with
On one or more log servers.
Further, before the daily record that transmission generates to the log server being pre-configured with, the method is also wrapped
Include:
The daily record of described generation carries out mating with the alarm level pre-set filtration, only sends described life
The part of the alarm level pre-set described in reaching in the daily record become.
Further, the log server being pre-configured with is:
The network address being received the described log server being pre-configured with by the user interface pre-set is believed
Breath；The service of the daily record receiving described generation of the network address information configuration according to described log server
Device.
Further, the network address information of log server at least includes:
The network address of described log server is Internet protocol fourth edition IPV4 address or internet protocol
View sixth version IPV6 address；With,
Described log server and router are direct-connected, or described log server and the indirectly connected company of router
Connect information.
Further, from caching, the forwarding information of the daily record of query generation specifically includes:
Postpone the forwarding information of the daily record depositing middle query generation according to inquiry key assignments；
Described inquiry key assignments generates according to following steps:
The network address of described log server is obtained from the face of forwarding；
When described log server and router are direct-connected, obtain the destination address of daily record transmission as under route
One jumps；When described log server and router are indirectly connected, table of query and routing obtains route next jump；
Obtain the five-tuple information of the outgoing interface of router；
By the outgoing interface of the network address of log server, route next jump and the router of acquisition five yuan
Group information is as described inquiry key assignments；
Described outgoing interface is real interface or virtual interface.
Further, virtual interface is at least one following interface: link aggregation group Smartgroup interface,
Super VLAN SuperVlan interface, Multi-Link Point-to-Point Protocol MPPP, PosGroup interface；
When outgoing interface is virtual interface, the five-tuple information of described router outgoing interface is:
Query interface port status information is to choose a physical interface activated, the thing of activation that will choose
The information of reason interface and described virtual interface is as the five-tuple information of router outgoing interface.
Further, forwarding information at least includes: mail to log server Ethernet header ESH,
The header NPH that exchange header and network processing unit process；
Described exchange header is SAIH and ITMH.
Further, from caching before the forwarding information of the daily record of query generation, the method also includes:
Described forwarding information is obtained, by forwarding information transmission to described caching from the face of forwarding.
Further, when inquiring about less than described forwarding information in caching, the method also includes:
The daily record of described generation is sent to log server address pair by socket SOCKET mode
On the log server answered.
On the other hand, the application also provides for a kind of device realizing log transmission, including: query unit and
Transmitting element；Wherein,
Query unit, for the forwarding information of the daily record of query generation from caching；
Transmitting element, for the forwarding information according to inquiry, sends the day generated by fast-forwarding passage
Will is on one or more log servers being pre-configured with.
Further, this device also includes filter element, for sending the daily record of described generation to joining in advance
Before the log server put, carry out mating with the alarm level pre-set by the daily record of described generation
Filter, only sends the part of the alarm level pre-set described in reaching in the daily record of described generation.
Further, this device also includes forwarding cache unit, before being used for inquiring about forwarding information,
Obtain described forwarding information from forwarding face and transmit to caching.
Further, this device also includes socket unit, for query unit from caching inquire about less than
During described forwarding information,
By the daily record of described generation by socket SOCKET mode be sent to described in day of being pre-configured with
On will server.
Further, query unit specifically for,
The network address of described log server is obtained from the face of forwarding；
When described log server and router are direct-connected, obtain the destination address of daily record transmission as under route
One jumps；When described log server and router are indirectly connected, table of query and routing obtains route next jump；
Obtain the five-tuple information of the outgoing interface of router；
By the outgoing interface of the network address of log server, route next jump and the router of acquisition five yuan
Group information is as described inquiry key assignments；
Postpone the described forwarding information of the daily record depositing middle query generation according to inquiry key assignments.
Compared with prior art, technical scheme includes: from caching, the daily record of query generation turns
Photos and sending messages；According to the forwarding information of inquiry, send the daily record generated to joining in advance by fast-forwarding passage
On one or more log servers put.The inventive method passes through to inquire about forwarding information from caching,
Utilize fast-forwarding passage that the daily record of generation is sent to one or more log services pre-set
Device, the performance solving the log transmission using SOCKET mode cannot meet high-performance router is asked
Topic.Simultaneously, it is to avoid use SOCKET mode owing to using individual equipment as the daily record of multiple devices
There is storage performance problem in server.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes of the application
Point, the schematic description and description of the present invention is used for explaining the present invention, is not intended that the present invention's
Improper restriction.In the accompanying drawings:
Fig. 1 is the flow chart that the present invention realizes the method for log transmission；
Fig. 2 is the structured flowchart that the present invention realizes the device of log transmission；
Fig. 3 is the method flow diagram of first embodiment of the invention.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing
Embodiments of the invention are described in detail.It should be noted that in the case of not conflicting, this Shen
Embodiment in please and the feature in embodiment can mutual combination in any.
Fig. 1 is the flow chart that the present invention realizes the method for log transmission, as it is shown in figure 1, include:
Step 100, from caching the forwarding information of daily record of query generation；
In this step, the forwarding information of the daily record depositing middle query generation of postponing according to inquiry key assignments；
Inquiry key assignments generates according to following steps:
The network address of log server is obtained from the face of forwarding；
When log server and router are direct-connected, obtain the destination address of daily record transmission as route next jump；
When log server and router are indirectly connected, table of query and routing obtains route next jump；
Obtain the five-tuple information of the outgoing interface of router；
By the outgoing interface of the network address of log server, route next jump and the router of acquisition five yuan
Group information is as described inquiry key assignments；
Outgoing interface can be real interface or virtual interface.
Here, the usual skill of five-tuple information data those skilled in the art of the outgoing interface of router is obtained
Art means.
Virtual interface is at least one following interface: link aggregation group (Smartgroup) interface, super void
Intend LAN (SuperVlan) interface, Multi-Link Point-to-Point Protocol (MPPP), Pos mouth polymerization PosGroup
Interface.Pos mouth is existing noun, refers to the port of passive fiber shunt.
When outgoing interface is virtual interface, the five-tuple information of router outgoing interface is:
Query interface port status information is to choose a physical interface activated, the thing of activation that will choose
The information of reason interface and virtual interface is as the five-tuple information of router outgoing interface.
It should be noted that when outgoing interface is virtual interface, choose activation by existing Routing Algorithm
Physical interface.Five-tuple information is existing definition, including shelf number, slot number, port numbers, subport
Number, port type, can uniquely be determined the outlet of message by five-tuple information.
From caching before the forwarding information of the daily record of query generation, the inventive method also includes:
Forwarding information is obtained, by forwarding information transmission to caching from the face of forwarding.
It should be noted that by forwarding information transmission to caching, the transmission of the daily record of generation can be improved
Efficiency, reaches to improve the purpose of the transmission performance of the daily record generated.
Step 101, according to inquiry forwarding information, by fast-forwarding passage send generate daily record extremely
On one or more log servers being pre-configured with.
Here, the log server being pre-configured with is: is received by the user interface pre-set and joins in advance
The network address information of the log server put；Connecing of network address information configuration according to log server
The server of the daily record that midwifery becomes.
It should be noted that the day generated by being pre-configured with one or more log servers to carry out
The reception of will, it is to avoid owing to SOCKET mode many employings individual equipment takes as the daily record of multiple devices
The storage performance problem that business device occurs.It is sent on more than one log server to realize daily record redundancy；
It addition, technical staff can carry out the inquiry of the daily record generated on an arbitrary log server, for
It is convenient that inquiry log information provides.
Preferably, the network address information of log server at least includes:
The network address of log server is Internet protocol fourth edition (IPV4) address or Internet protocol
Sixth version (IPV6) address；With,
Log server and router are direct-connected, or log server and the indirectly connected link information of router.
Forwarding information at least includes: mail to the Ethernet header (ESH) of log server, exchange head
The header NPH head that (SAIH and ITMH) and network processing unit process.
It should be noted that SAIH is the exchange head that interchange channel (SA) 200 exchange chips are corresponding；ITMH
It it is the exchange head of delivery manager (TM) correspondence.Carry out data transmission belonging to this area according to forwarding information
The common knowledge of technical staff, does not repeats them here.
When inquiring about less than forwarding information in caching, the inventive method also includes:
The daily record generated is sent to log server address by socket (SOCKET) mode corresponding
Log server on.
It should be noted that quickly sent the daily record of generation by fast-forwarding passage, meet high-performance
The performance requirement of router；When occurring inquiring about forwarding information failure from caching, by SOCKET side
Formula can ensure that the complete of the log information of generation.
Sending the daily record generated to before the log server being pre-configured with, the inventive method also includes:
The daily record of generation carries out mating with the alarm level pre-set filtration, only sends the daily record of generation
In reach the part of alarm level that pre-sets.
It should be noted that the alarm level pre-set here refers to that those skilled in the art are to generation
Daily record carries out technical need analysis, the filtration rank arranged according to the significance level of log information, such as, set
Put power supply, conversion address, relate to safe some key message etc. and alert, be the most only provided with
Alarm just carries out the forwarding of daily record.
The inventive method, by inquiring about forwarding information from caching, utilizes the day that fast-forwarding passage will generate
Will is sent to one or more log servers pre-set, and solves employing SOCKET mode
The performance issue of the log transmission of high-performance router cannot be met.Simultaneously, it is to avoid employing SOCKET
Mode occurs storage performance problem owing to using individual equipment as the log server of multiple devices.
Fig. 2 is the structured flowchart that the present invention realizes the device of log transmission, as in figure 2 it is shown, include: look into
Ask unit and transmitting element；Wherein,
Query unit, for the forwarding information of the daily record of query generation from caching；
Query unit specifically for,
The network address of log server is obtained from the face of forwarding；
When log server and router are direct-connected, obtain the destination address of daily record transmission as route next jump；
When log server and router are indirectly connected, table of query and routing obtains route next jump；
Obtain the five-tuple information of the outgoing interface of router；
By the outgoing interface of the network address of log server, route next jump and the router of acquisition five yuan
Group information is as described inquiry key assignments；
Postpone the forwarding information of the daily record depositing middle query generation according to inquiry key assignments.
Transmitting element, for the forwarding information according to inquiry, sends the day generated by fast-forwarding passage
Will is on one or more log servers being pre-configured with.
Apparatus of the present invention also include filter element, for sending the daily record of generation to the daily record clothes being pre-configured with
Before business device, the daily record of generation carries out mating with the alarm level pre-set filtration, only sends generation
Daily record in reach the part of alarm level that pre-sets.
Apparatus of the present invention also include forwarding cache unit, before being used for inquiring about forwarding information, obtain from forwarding face
Take forwarding information and transmit to caching.
Apparatus of the present invention also include socket unit, inquire about less than forwarding letter for query unit from caching
During breath, the daily record of generation is sent to by socket SOCKET mode the log server being pre-configured with
On.
Carry out understanding that detailed description, embodiment are only used for the inventive method below by way of specific embodiment
The statement present invention, is not limited to the protection domain of the inventive method.
Embodiment 1
Fig. 3 is the method flow diagram of first embodiment of the invention, as it is shown on figure 3, include:
Step 300, carry out mating filtration with the alarm level pre-set by the daily record of generation, it is thus achieved that raw
The daily record become reaches the part of the alarm level pre-set.
Step 301, using the network address of log server and route next jump as inquiry key assignments, postpone
Deposit middle inquiry forwarding information.During successful inquiring, perform step 302；When inquiring about unsuccessfully, perform step 303.
Specifically include and " obtain the network address of log server from the face of forwarding；
When log server and router are direct-connected, obtain the destination address of daily record transmission as route next jump；
When log server and router are indirectly connected, table of query and routing obtains route next jump；
Using the network address of log server obtained and route next jump as inquiry key assignments；By inquiry
Key assignments inquires about forwarding information from caching.
It should be noted that when the forwarding information in forwarding face update, add new forwarding information or
When forwarding information is deleted, it is necessary first to the forwarding information in caching is processed accordingly, with
Transmission to the daily record generated is adjusted correspondingly.Concrete adjustment process belongs to those skilled in the art's
Common knowledge.
Inquiry key assignments also includes the five-tuple information of the outgoing interface of router；
Outgoing interface is real interface or virtual interface:
Virtual interface is at least one following interface: link aggregation group (Smartgroup) interface, super void
Intend LAN (SuperVlan) interface, Multi-Link Point-to-Point Protocol (MPPP), PosGroup interface.
When outgoing interface is virtual interface, the five-tuple information of router outgoing interface is:
Query interface port status information is to choose a physical interface activated, the thing of activation that will choose
The information of reason interface and virtual interface is as the five-tuple information of router outgoing interface.
Step 302, according to inquiry forwarding information the daily record of generation will reach the alert level pre-set
Other part mails to one or more log servers being pre-configured with.
Forwarding information at least includes: ESH, exchange head (SAIH and ITMH) and NPH；Forward letter
Cease general combination producing cookie, wherein, carry out two layers of forwarding based on ESH, the daily record of generation is mail to
SA chip；SA chip will exchange to TM chip based on SAIH, peel off ESH and SAIH；TM
The daily record of generation is delivered to network processing unit (NP) based on ITMH by chip；NP chip will based on NPH
TM mails to physics panel mouth.
Step 303, the part of alarm level reaching in the daily record of generation to pre-set is passed through socket
(SOCKET) mode is sent on the log server that log server address is corresponding.Here by
When SOCKET mode carries out log transmission, it is still necessary to obtain from the face of forwarding and forward message.Through once passing
After defeated, during forwarding information afterwards will be transferred to change；In the present embodiment, inquire about and unsuccessfully refer to slow
Corresponding cookie is can not find in depositing.
The present embodiment, when the daily record of generation only reaches the alarm level pre-set, just inquiry obtains slow
Forwarding message in depositing, carries out log transmission.Log transmission method flexibly, both can be by quickly having turned
Send out passage and quickly send daily record, it is also possible to sent the daily record of generation by SOCKET mode.Support IPV4,
IPV6 address, virtual interface, real interface, under direct-connected and indirectly connected situation, the transmission of the daily record of generation, logical
Cross forwarding information and carry out caching the efficiency of transmission of the daily record being effectively increased generation；By quick transmission channel
Ensure that transmission speed.
Although the embodiment that disclosed herein is as above, but described content only readily appreciates the present invention
And the embodiment used, it is not limited to the present invention.Technology people in any art of the present invention
Member, on the premise of without departing from the spirit and scope that disclosed herein, can be in the form implemented and thin
Any amendment and change is carried out on joint, but the scope of patent protection of the present invention, still must be with appended right
Claim is defined in the range of standard.
Claims (14)
1. the method realizing log transmission, it is characterised in that including:
The forwarding information of the daily record of query generation from caching；
According to the forwarding information of inquiry, sent the daily record generated by fast-forwarding passage to being pre-configured with
On one or more log servers.
Method the most according to claim 1, it is characterised in that the daily record that described transmission generates is to pre-
Before the log server first configured, the method also includes:
The daily record of described generation carries out mating with the alarm level pre-set filtration, only sends described life
The part of the alarm level pre-set described in reaching in the daily record become.
Method the most according to claim 1 and 2, it is characterised in that described in the daily record that is pre-configured with
Server is:
The network address being received the described log server being pre-configured with by the user interface pre-set is believed
Breath；The service of the daily record receiving described generation of the network address information configuration according to described log server
Device.
Method the most according to claim 3, it is characterised in that the network ground of described log server
Location information at least includes:
The network address of described log server is Internet protocol fourth edition IPV4 address or internet protocol
View sixth version IPV6 address；With,
Described log server and router are direct-connected, or described log server and the indirectly connected company of router
Connect information.
Method the most according to claim 3, it is characterised in that described query generation from caching
The forwarding information of daily record specifically includes:
Postpone the forwarding information of the daily record depositing middle query generation according to inquiry key assignments；
Described inquiry key assignments generates according to following steps:
The network address of described log server is obtained from the face of forwarding；
When described log server and router are direct-connected, obtain the destination address of daily record transmission as under route
One jumps；When described log server and router are indirectly connected, table of query and routing obtains route next jump；
Obtain the five-tuple information of the outgoing interface of router；
By the outgoing interface of the network address of log server, route next jump and the router of acquisition five yuan
Group information is as described inquiry key assignments；
Described outgoing interface is real interface or virtual interface.
Method the most according to claim 5, it is characterised in that described virtual interface is following being interfaced to
One of few: link aggregation group Smartgroup interface, super VLAN SuperVlan interface, many
Link point-to-point protocol MPPP, PosGroup interface；
When outgoing interface is virtual interface, the five-tuple information of described router outgoing interface is:
Query interface port status information is to choose a physical interface activated, the thing of activation that will choose
The information of reason interface and described virtual interface is as the five-tuple information of router outgoing interface.
Method the most according to claim 1 and 2, it is characterised in that described forwarding information at least wraps
Include: mail to what the Ethernet header ESH of log server, exchange header and network processing unit processed
Header NPH；
Described exchange header is SAIH and ITMH.
Method the most according to claim 1 and 2, it is characterised in that described inquiry life from caching
Before the forwarding information of the daily record become, the method also includes:
Described forwarding information is obtained, by forwarding information transmission to described caching from the face of forwarding.
Method the most according to claim 1 and 2, it is characterised in that when inquiring about less than institute in caching
When stating forwarding information, the method also includes:
The daily record of described generation is sent to log server address pair by socket SOCKET mode
On the log server answered.
10. the device realizing log transmission, it is characterised in that including: query unit and transmission are single
Unit；Wherein,
Query unit, for the forwarding information of the daily record of query generation from caching；
Transmitting element, for the forwarding information according to inquiry, sends the day generated by fast-forwarding passage
Will is on one or more log servers being pre-configured with.
11. devices according to claim 10, it is characterised in that this device also includes filter element,
For sending the daily record of described generation to before the log server being pre-configured with, by the daily record of described generation
Carry out mating filtration with the alarm level pre-set, only send and the daily record of described generation reaches described pre-
The part of the alarm level first arranged.
12. according to the device described in claim 10 or 11, it is characterised in that this device also includes turning
Send out buffer unit, before being used for inquiring about forwarding information,
Obtain described forwarding information from forwarding face and transmit to caching.
13. according to the device described in claim 10 or 11, it is characterised in that this device also includes set
Connect word cell, when query unit is inquired about less than described forwarding information from caching,
By the daily record of described generation by socket SOCKET mode be sent to described in day of being pre-configured with
On will server.
14. according to the device described in claim 10 or 11, it is characterised in that described query unit has
Body is used for,
The network address of described log server is obtained from the face of forwarding；
When described log server and router are direct-connected, obtain the destination address of daily record transmission as under route
One jumps；When described log server and router are indirectly connected, table of query and routing obtains route next jump；
Obtain the five-tuple information of the outgoing interface of router；
By the outgoing interface of the network address of log server, route next jump and the router of acquisition five yuan
Group information is as described inquiry key assignments；
Postpone the described forwarding information of the daily record depositing middle query generation according to inquiry key assignments.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510284692.1A CN106301844B (en) | 2015-05-28 | 2015-05-28 | Method and device for realizing log transmission |
| PCT/CN2015/087242 WO2016187967A1 (en) | 2015-05-28 | 2015-08-17 | Method and apparatus for realizing log transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510284692.1A CN106301844B (en) | 2015-05-28 | 2015-05-28 | Method and device for realizing log transmission |
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| Publication Number | Publication Date |
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| CN106301844A true CN106301844A (en) | 2017-01-04 |
| CN106301844B CN106301844B (en) | 2020-03-24 |
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| CN201510284692.1A Active CN106301844B (en) | 2015-05-28 | 2015-05-28 | Method and device for realizing log transmission |
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| CN (1) | CN106301844B (en) |
| WO (1) | WO2016187967A1 (en) |
Cited By (1)
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| CN114780353A (en) * | 2022-06-15 | 2022-07-22 | 统信软件技术有限公司 | File log monitoring method and system and computing device |
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| CN108989314A (en) * | 2018-07-20 | 2018-12-11 | 北京木瓜移动科技股份有限公司 | A kind of Transmitting Data Stream, processing method and processing device |
| CN111190871A (en) * | 2019-12-18 | 2020-05-22 | 中移（杭州）信息技术有限公司 | Log generation method and device, computer equipment and storage medium |
| CN111177013B (en) * | 2020-01-06 | 2023-09-26 | 北京达佳互联信息技术有限公司 | Log data acquisition method, device, computer equipment and storage medium |
| CN115118583B (en) * | 2022-06-29 | 2024-03-26 | 北京奇艺世纪科技有限公司 | Log query method and device, electronic equipment and computer readable storage equipment |
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| CN104572351A (en) * | 2014-12-23 | 2015-04-29 | 中国工商银行股份有限公司 | Data recovery system and method based on host system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114780353A (en) * | 2022-06-15 | 2022-07-22 | 统信软件技术有限公司 | File log monitoring method and system and computing device |
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| CN106301844B (en) | 2020-03-24 |
| WO2016187967A1 (en) | 2016-12-01 |
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