CN106446097A - File reading method and system - Google Patents
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- CN106446097A CN106446097A CN201610820869.XA CN201610820869A CN106446097A CN 106446097 A CN106446097 A CN 106446097A CN 201610820869 A CN201610820869 A CN 201610820869A CN 106446097 A CN106446097 A CN 106446097A
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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
- G06F16/17—Details of further file system functions
- G06F16/172—Caching, prefetching or hoarding of files
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
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Abstract
The invention discloses a file reading method and system. The method is applied to a client and includes the following steps that a reading request for a target file is received from a user; whether cache data corresponding to the target file is saved locally or not is determined; if yes, the cache data corresponding to the locally saved target file is directly output; if no, the reading request is sent to a server so that the server can feed back cache data corresponding to the target file according to the reading request; the cache data corresponding to the target file and fed back by the server is received; the cache data corresponding to the target file is locally saved and output. By means of the technical scheme, the problem that time for the client to respond to the reading request of the user is long due to delayed interaction of the client and the server can be avoided, and response speed is increased.
Description
Technical field
The present invention relates to Computer Applied Technology field, more particularly to a kind of file reading and system.
Background technology
With the fast development of Computer Applied Technology, distributed memory system gradually increases.In distributed memory system
In, user can send read requests by user end to server, reads the corresponding document in distributed memory system.Each
Each read operation of client is required for notifying server so that the interaction data amount between client and server is larger,
Frequency of interaction is higher, and easily occurring because interaction postpones increases asking of the response time length of the read requests to user for the client
Topic.
Content of the invention
It is an object of the invention to provide a kind of file reading and system, to avoid the occurrence of because of client and server
Interaction postpones and leads to the problem of the read requests response time length to user for the client, improves response speed.
A kind of file reading, is applied to client, including：
Receive user is directed to the read requests of file destination；
It is corresponding data cached whether determination locally preserves described file destination；
If it is, it is corresponding data cached directly to export the local described file destination preserving；
If it is not, then described read requests are sent to server, so that described server, according to described read requests, returns
Return described file destination corresponding data cached；The described file destination receiving described server return is corresponding data cached；
Locally preserving and to export described file destination corresponding data cached.
In a kind of specific embodiment of the present invention, also include：
When receiving described user and being directed to the corresponding data cached write request of described file destination, by said write
Request be sent to described server so that described server according to described file destination corresponding data cached in each client
Read-write state, it is determined whether accept said write request, if it is, return the first confirmation；
If receiving described first confirmation, described first confirmation is returned to described user, so that institute
State user and be directed to the corresponding data cached execution write operation of described file destination；
According to the write information of described user, the described file destination updating local preservation is corresponding data cached, and will
First fresh information Real-time Feedback gives described server, so that described server is according to described first fresh information, updates described
File destination, and described first fresh information is sent to preserves corresponding other the data cached clients of described file destination
End.
In a kind of specific embodiment of the present invention, also include：
Receive the second confirmation that described server returns, described second confirmation is that described server is determining not
Accept during said write request, to return to the information of described client；
Described second confirmation is returned to described user, to point out the described user currently can not be to described file destination
Corresponding data cached carry out write operation.
In a kind of specific embodiment of the present invention, also include：
Receive the second fresh information for described file destination that described server sends；
According to described second fresh information, update the local described file destination preserving corresponding data cached.
In a kind of specific embodiment of the present invention, also include：
Export to described user and update information.
A kind of file reads system, including client and server, wherein,
Described client, is directed to the read requests of file destination for receive user；Determine described in locally whether preserving
File destination is corresponding data cached；If it is, it is corresponding data cached directly to export the local described file destination preserving；
If it is not, then described read requests are sent to server；The described file destination receiving described server return is corresponding slow
Deposit data；Locally preserving and to export described file destination corresponding data cached；
Described server, for receiving the read requests that described client sends, according to described read requests, returns described
File destination is corresponding data cached.
In a kind of specific embodiment of the present invention,
Described client, is additionally operable to receiving described user for the corresponding data cached write of described file destination
During request, said write request is sent to described server；If receiving the first confirmation that described server returns,
Then described first confirmation is returned to described user, so that described user is corresponding data cached for described file destination
Execution write operation；According to the write information of described user, the described file destination updating local preservation is corresponding data cached,
And the first fresh information Real-time Feedback is given described server；
Described server, is additionally operable to receiving the write request for described file destination that described client sends
When, according to the corresponding data cached read-write state in each client of described file destination, it is determined whether accept said write
Request, if it is, return described first confirmation；Receiving described first fresh information that described client sends
When, according to described first fresh information, update described file destination, and described first fresh information is sent to preserve described
Corresponding other the data cached clients of file destination.
In a kind of specific embodiment of the present invention,
Described server, is additionally operable to, when determining that not accepting said write asks, return the second confirmation to described client
Information；
Described client, is additionally operable to, when receiving described second confirmation, described second confirmation is sent to
Described user, to point out described user currently corresponding to described file destination data cached can not carry out write operation.
In a kind of specific embodiment of the present invention,
Described client, is additionally operable to receiving the second renewal letter for described file destination that described server sends
During breath, according to described second fresh information, update the local described file destination preserving corresponding data cached.
In a kind of specific embodiment of the present invention,
Described client, is additionally operable to export renewal information to described user.
The technical scheme that the application embodiment of the present invention is provided, client is directed to the reading of file destination receiving user
During request, can first determine that locally whether to preserve this file destination corresponding data cached, if it is, can directly export
Local this file destination preserving is corresponding data cached, if it is not, then read requests can be sent to server, so that clothes
, according to this read requests, return file destination is corresponding data cached for business device, and client receives the target literary composition of server return
Part corresponding data cached after, can locally preserve and to export this file destination corresponding data cached.So, when user has
During to the reading demand of file destination, user can directly corresponding to the file destination of the local preservation of client data cached hold
Row read operation, the operation such as such as browses, checks it is not necessary to will send read requests by user end to server every time, subtracting
The interaction times of client and server are lacked, it is to avoid occur postponing and leading to client pair because of interacting of client and server
The problem of the read requests response time length of user, improves response speed.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, acceptable
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of implementing procedure figure of file reading in the embodiment of the present invention；
Fig. 2 is another kind of implementing procedure figure of file reading in the embodiment of the present invention；
Fig. 3 is the structural representation that in the embodiment of the present invention, a kind of file reads system.
Specific embodiment
In order that those skilled in the art more fully understand the present invention program, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.Obviously, described embodiment is only a part of embodiment of the present invention, rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, broadly falls into the scope of protection of the invention.
Embodiments provide a kind of file reading, the method can apply to client.This client is
Any one client in the multiple client being connected with the server communication of distributed memory system.
Shown in Figure 1, a kind of implementing procedure figure of the file reading being provided by the embodiment of the present invention, the method
May comprise steps of：
S110：Receive user is directed to the read requests of file destination；
S120：It is corresponding data cached whether determination locally preserves file destination.
In embodiments of the present invention, when user has the reading to file destination or write demand, can be first to client
Send the read requests for this file destination, after reading file destination, could continue this file destination is read out or
Person's write operation etc..
Client, when receiving the read requests that user is directed to file destination, can first determine locally whether preserve mesh
Mark file is corresponding data cached.
In embodiments of the present invention, be stored with server some files, and file destination is also stored in server, but
It is that, if reading file destination before user, the data cached of file destination locally can preserve in client.Target
The content of file data cached content corresponding with file destination is consistent.
If client determination is locally preserved, and file destination is corresponding data cached, can be with the behaviour of execution step S130
Make, if client determination is not locally preserved, and file destination is corresponding data cached, can be with the operation of execution step S140.
S130：Directly export the local file destination preserving corresponding data cached.
If it is corresponding data cached that client locally preserves file destination, can directly export this file destination pair
That answers is data cached, to respond the read requests to file destination for the user.User can directly browse on the client, check this
File destination is corresponding data cached, because the corresponding data cached content of file destination is consistent with the content of file destination, institute
So that the file destination that user reads storage in client is corresponding data cached, is also equivalent to read in server
The file destination of storage.
S140：Read requests are sent to server, so that server is according to read requests, return file destination corresponding
Data cached；The file destination that the reception server returns is corresponding data cached；Correspond to locally preserving and exporting file destination
Data cached.
If it is corresponding data cached that client does not locally preserve file destination, may not read before showing user
Cross this file destination, or client did removing process etc. to the file that user read, in this case, client can
So that this read requests to be sent to server.
After server receives this read requests, this file destination pair can be returned according to this read requests to client
That answers is data cached.Preserve file destination in the server, server, can when receiving the read requests of client transmission
With the content according to current goal file, generation file destination is corresponding data cached, so that the content of file destination and target
The corresponding data cached content of file is consistent.
The file destination that client the reception server returns is corresponding data cached, can export this file destination corresponding
Data cached, to respond this read requests to file destination of user.
Meanwhile, client can also preserve the corresponding data file of this file destination local, to receive use again
When family is to the read requests of file destination, the file destination that can directly export local preservation is corresponding data cached.
The method that the application embodiment of the present invention is provided, client is directed to the read requests of file destination receiving user
When, can first determine that local this file destination of whether preserving is corresponding data cached, if it is, can directly export local
This file destination preserving is corresponding data cached, if it is not, then read requests can be sent to server, so that server
According to this read requests, return file destination is corresponding data cached, and client receives the file destination pair of server return
Answer data cached after, can locally preserve and to export this file destination corresponding data cached.So, when user has to mesh
During the reading demand of mark file, user directly corresponding to the file destination of the local preservation of client data cached can execute reading
Extract operation, the operation such as such as browses, checks it is not necessary to will send read requests by user end to server every time, decreasing
The interaction times of client and server, it is to avoid occur postponing and leading to client to user because of interacting of client and server
Read requests response time length problem, improve response speed.
Shown in Figure 2, in one embodiment of the invention, the method can also comprise the following steps：
S150：When receiving user and being directed to the corresponding data cached write request of file destination, write request is sent out
Give server, so that server is according to the corresponding data cached read-write state in each client of file destination, determination is
No accept write request, if it is, return the first confirmation.
In embodiments of the present invention, when user has the reading to file destination or write demand, can be first to client
Send the read requests for this file destination, after reading file destination, could continue this file destination is read out or
Person's write operation etc..
When client receives the read requests that user is directed to file destination, can be with execution step S120 to step S140
Operation, so, locally save file destination in client corresponding data cached.In this case, client receives
To user be directed to file destination corresponding data cached write request when, client needs for this write request to be sent to service
Device.
It is understood that in synchronization, it is understood that there may be it is corresponding slow that multiple client has this file destination simultaneously
Deposit data, that is, it is corresponding data cached to preserve this file destination in multiple client respectively.When certain client pair
During the user answering data cached execution write operation corresponding to file destination, it will make file destination corresponding data cached
Content changes.For ensureing the corresponding data cached uniformity of file destination that each client preserves, each client needs
Write request is sent to server.
After server receives this write request, can inquire about current goal file corresponding data cached in each client
In read-write state.If being reading state in other clients, server can accept this write request, and returns
First confirmation, if being write state in any one other client, server can determine that not accepting this writes
Enter request, this write request can not be processed, or return the second confirmation.
S160：If receiving the first confirmation, the first confirmation is returned to user, so that user is directed to mesh
The mark corresponding data cached execution write operation of file.
If client receives the first confirmation, can determine currently can be to file destination corresponding caching number
According to carrying out write operation, this first confirmation can be returned to user, so that user is directed to the corresponding caching of file destination
Data executes write operation.
If client does not receive any confirmation for this write request of server return, or receives
Second confirmation, then can determine and currently corresponding to file destination data cached can not carry out write operation, in this feelings
Under condition, any information can not be returned and return to user to user, or by the second confirmation, to point out user currently can not
Write operation is carried out to the data cached of file destination.
S170：According to the write information of user, it is corresponding data cached to update the local file destination preserving, and by first
Fresh information Real-time Feedback is to server, so that server is according to the first fresh information, updates file destination, and first is updated
Information is sent to preserves corresponding other the data cached clients of file destination.
After user receives the first confirmation, can data cached execution write operation corresponding to file destination, such as
The operations such as fruit modification, deletion.Client, according to the write information of user, updates the local file destination corresponding caching number preserving
According to, and by the first fresh information Real-time Feedback to server.
Server according to the first fresh information, updates file destination, and the first fresh information is sent to preserves target
Corresponding other the data cached clients of file.So, other clients can also be according to this first fresh information, immediately more
The file destination that new own local preserves corresponding data cached so that the corresponding data cached content of file destination and target
The content of file is consistent.
In one embodiment of the invention, the method can also comprise the following steps：
Step one：The second fresh information for file destination that the reception server sends；
Step 2：According to the second fresh information, update the local file destination preserving corresponding data cached.
For ease of description, above-mentioned two step is combined and illustrates.
Client is in course of normal operation, if receiving the second renewal letter for file destination of server transmission
Breath, then show currently to have that other clients are corresponding to the file destination of its local preservation data cached has carried out write operation.
In this case, client can update the local file destination corresponding caching number preserving according to this second fresh information
According to.So, no matter when user has the read-write demand to file destination, can read file destination in the client and correspond to
Data cached, the corresponding data cached content of this file destination is consistent with the content of the file destination in server.
Further, client can also export to user and update information, and this renewal information can comprise tool
The more new content of body, so that user understands the content change situation of file destination in time.
Corresponding to above method embodiment, the embodiment of the present invention additionally provides a kind of file and reads system, is described below
A kind of file read system and a kind of above-described file reading can be mutually to should refer to.
Shown in Figure 3, this system can include client 310 server 320, and client 310 is to lead to server
Any one client in the multiple client that letter connects, wherein：
Client 310, is directed to the read requests of file destination for receive user；Determine locally whether preserve target literary composition
Part is corresponding data cached；If it is, it is corresponding data cached directly to export the local file destination preserving；If it is not, then
Read requests are sent to server 320；The file destination that the reception server 320 returns is corresponding data cached；Protect local
Deposit and export file destination corresponding data cached；
Server 320, for receiving the read requests of client 310 transmission, according to read requests, returns file destination pair
That answers is data cached.
The system that the application embodiment of the present invention is provided, client is directed to the read requests of file destination receiving user
When, can first determine that local this file destination of whether preserving is corresponding data cached, if it is, can directly export local
This file destination preserving is corresponding data cached, if it is not, then read requests can be sent to server, so that server
According to this read requests, return file destination is corresponding data cached, and client receives the file destination pair of server return
Answer data cached after, can locally preserve and to export this file destination corresponding data cached.So, when user has to mesh
During the reading demand of mark file, user directly corresponding to the file destination of the local preservation of client data cached can execute reading
Extract operation, the operation such as such as browses, checks it is not necessary to will send read requests by user end to server every time, decreasing
The interaction times of client and server, it is to avoid occur postponing and leading to client to user because of interacting of client and server
Read requests response time length problem, improve response speed.
In a kind of specific embodiment of the present invention：
Client 310, is additionally operable to when receiving user and being directed to the corresponding data cached write request of file destination, will
Write request is sent to server 320；If receiving the first confirmation of server 320 return, by the first confirmation letter
Breath returns to user, so that user is directed to the corresponding data cached execution write operation of file destination；Write letter according to user
Breath, the file destination updating local preservation is corresponding data cached, and by the first fresh information Real-time Feedback to server 320；
Server 320, is additionally operable to when receiving the write request for file destination of client 310 transmission, according to
The corresponding data cached read-write state in each client of file destination, it is determined whether accept write request, if it is, returning
Return the first confirmation；When receiving the first fresh information of client 310 transmission, according to the first fresh information, update mesh
Mark file, and the first fresh information is sent to preserves corresponding other the data cached clients of file destination.
In a kind of specific embodiment of the present invention：
Server 320, is additionally operable to, when determination does not accept write request, return the second confirmation to client 310；
Client 310, is additionally operable to, when receiving the second confirmation, the second confirmation is sent to user, to carry
Show that user currently corresponding to file destination data cached can not carry out write operation.
In a kind of specific embodiment of the present invention：
Client 310, is additionally operable to when receiving second fresh information for file destination of server 320 transmission,
According to the second fresh information, update the local file destination preserving corresponding data cached.
In a kind of specific embodiment of the present invention：
Client 310, is additionally operable to export renewal information to user.
In this specification, each embodiment is described by the way of going forward one by one, and what each embodiment stressed is and other
The difference of embodiment, between each embodiment same or similar partly mutually referring to.For disclosed in embodiment it is
For system, because it corresponds to the method disclosed in Example, so description is fairly simple, referring to method part in place of correlation
Illustrate.
Professional further appreciates that, in conjunction with the unit of each example of the embodiments described herein description
And algorithm steps, can with electronic hardware, computer software or the two be implemented in combination in, in order to clearly demonstrate hardware and
The interchangeability of software, generally describes composition and the step of each example in the above description according to function.These
Function to be executed with hardware or software mode actually, the application-specific depending on technical scheme and design constraint.Specialty
Technical staff can use different methods to each specific application realize described function, but this realization should
Think beyond the scope of this invention.
The step of the method in conjunction with the embodiments described herein description or algorithm can directly be held with hardware, processor
The software module of row, or the combination of the two is implementing.Software module can be placed in random access memory (RAM), internal memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In known any other form of storage medium in field.
Specific case used herein is set forth to the principle of the present invention and embodiment, the saying of above example
Bright it is only intended to help and understands technical scheme and its core concept.It should be pointed out that it is common for the art
For technical staff, under the premise without departing from the principles of the invention, the present invention can also be carried out with some improvement and modify, these
Improve and modify and also fall in the protection domain of the claims in the present invention.
Claims (10)
1. a kind of file reading is it is characterised in that be applied to client, including：
Receive user is directed to the read requests of file destination；
It is corresponding data cached whether determination locally preserves described file destination；
If it is, it is corresponding data cached directly to export the local described file destination preserving；
If it is not, then described read requests are sent to server, so that described server is according to described read requests, return institute
State file destination corresponding data cached；The described file destination receiving described server return is corresponding data cached；At this
Preserve and to export described file destination corresponding data cached.
2. file reading according to claim 1 is it is characterised in that also include：
When receiving described user and being directed to the corresponding data cached write request of described file destination, said write is asked
It is sent to described server, so that described server is according to the corresponding data cached reading in each client of described file destination
Write state, it is determined whether accept said write request, if it is, return the first confirmation；
If receiving described first confirmation, described first confirmation is returned to described user, so that described use
Family is directed to the corresponding data cached execution write operation of described file destination；
According to the write information of described user, it is corresponding data cached to update the local described file destination preserving, and by first
Fresh information Real-time Feedback gives described server, so that described server is according to described first fresh information, updates described target
File, and described first fresh information is sent to preserves corresponding other the data cached clients of described file destination.
3. file reading according to claim 2 is it is characterised in that also include：
Receive the second confirmation that described server returns, described second confirmation is that described server does not accept in determination
The information of described client is returned to during said write request；
Described second confirmation is returned to described user, to point out described user currently described file destination can not be corresponded to
Data cached carry out write operation.
4. the file reading according to any one of claims 1 to 3 is it is characterised in that also include：
Receive the second fresh information for described file destination that described server sends；
According to described second fresh information, update the local described file destination preserving corresponding data cached.
5. file reading according to claim 4 is it is characterised in that also include：
Export to described user and update information.
6. a kind of file reads system it is characterised in that including client and server, wherein,
Described client, is directed to the read requests of file destination for receive user；Determine and locally whether preserve described target
File is corresponding data cached；If it is, it is corresponding data cached directly to export the local described file destination preserving；If
No, then described read requests are sent to server；Receive the described file destination corresponding caching number that described server returns
According to；Locally preserving and to export described file destination corresponding data cached；
Described server, for receiving the read requests that described client sends, according to described read requests, returns described target
File is corresponding data cached.
7. file according to claim 6 read system it is characterised in that
Described client, is additionally operable to receiving described user for the corresponding data cached write request of described file destination
When, said write request is sent to described server；If receiving the first confirmation that described server returns, will
Described first confirmation returns to described user, so that described user is directed to the corresponding data cached execution of described file destination
Write operation；According to the write information of described user, the described file destination updating local preservation is corresponding data cached, and will
First fresh information Real-time Feedback gives described server；
Described server, is additionally operable in the write request receiving that described client sends for described file destination, root
According to the corresponding data cached read-write state in each client of described file destination, it is determined whether accept said write request,
If it is, returning described first confirmation；When receiving described first fresh information that described client sends, according to
Described first fresh information, updates described file destination, and described first fresh information is sent to preserves described target literary composition
Corresponding other the data cached clients of part.
8. file according to claim 7 read system it is characterised in that
Described server, is additionally operable to, when determining that not accepting said write asks, return the second confirmation to described client；
Described client, is additionally operable to, when receiving described second confirmation, described second confirmation is sent to described
User, to point out described user currently corresponding to described file destination data cached can not carry out write operation.
9. file according to any one of claim 6 to 8 read system it is characterised in that
Described client, is additionally operable to receiving the second fresh information for described file destination that described server sends
When, according to described second fresh information, update the local described file destination preserving corresponding data cached.
10. file according to claim 9 read system it is characterised in that
Described client, is additionally operable to export renewal information to described user.
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| CN201610820869.XA CN106446097B (en) | 2016-09-13 | 2016-09-13 | File reading method and system |
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| CN201610820869.XA CN106446097B (en) | 2016-09-13 | 2016-09-13 | File reading method and system |
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| CN107835227A (en) * | 2017-09-28 | 2018-03-23 | 成都路行通信息技术有限公司 | A kind of request of data method optimizing method |
| CN108011949A (en) * | 2017-11-30 | 2018-05-08 | 百度在线网络技术（北京）有限公司 | Method and apparatus for obtaining data |
| CN108712454A (en) * | 2018-02-13 | 2018-10-26 | 阿里巴巴集团控股有限公司 | A kind of document handling method, device and equipment |
| CN109413176A (en) * | 2018-10-19 | 2019-03-01 | 中国银行股份有限公司 | Report method for down loading and device |
| CN110196679A (en) * | 2018-03-21 | 2019-09-03 | 腾讯科技（深圳）有限公司 | Distributed deployment system, method for managing object, device, medium and electronic equipment |
| CN110598138A (en) * | 2018-06-12 | 2019-12-20 | 北京京东尚科信息技术有限公司 | Cache-based processing method and device |
| CN111339464A (en) * | 2020-02-19 | 2020-06-26 | 网易（杭州）网络有限公司 | Data processing method and device, electronic equipment and storage medium |
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