WO2021189283A1

WO2021189283A1 - Method and device for data processing, electronic device, and storage medium

Info

Publication number: WO2021189283A1
Application number: PCT/CN2020/081046
Authority: WO
Inventors: 汤见乐; 郭祥
Original assignee: 深圳市欢太科技有限公司; Oppo广东移动通信有限公司
Priority date: 2020-03-25
Filing date: 2020-03-25
Publication date: 2021-09-30
Also published as: CN115104295A

Abstract

Provided in the present application are a method and device for data processing, an electronic device, and a storage medium. The method comprises: when first data transmitted by a level-two server room is received, acquiring a first content and a first timestamp that the first data comprises; if second data of which the content is identical to the first content is present in a storage device of a level-one server room, acquiring a second timestamp of the second data; if the first timestamp is greater than the second timestamp, deleting the second data in the storage device of the level-one server room, and storing the first data in the storage device of the level-one server room. The method divides multiple redundant server rooms into the level-one server room and the level-two server room, the level-two server room transmits data to the level-one server room, and the level-one server room determines, on the basis of the timestamps, which data is to be retained. The method effectively avoids a concurrent write conflict for multiple redundant server rooms, and ensures data consistency for the multiple redundant server rooms.

Description

Data processing method, device, electronic device and storage medium

Technical field

This application relates to the field of distributed data management technology, and in particular to a data processing method, device, electronic device, and storage medium.

Background technique

Now that society has entered the era of the Internet and big data, Internet-oriented companies will inevitably need to consider avoiding the problem of single computer room failures after reaching a certain scale. Living more in a remote computer room is an effective way to solve this problem. In addition, more activity in the computer room can also improve user access speed and reduce deployment costs.

At present, the management mode of a multi-active computer room manages a part of data for each computer room or region. The data is written in one computer room first, and then synchronized to other computer rooms. When this method writes the same data in multiple computer rooms at the same time, it is impossible to determine which data will prevail, that is, there is a simultaneous write conflict, which affects the stability of the multiple-active computer room.

technical problem

Technical solutions

The first aspect of the embodiments of the present application provides a data processing method, which is applied to a first-level computer room, where the first-level computer room is in a distributed data management system, and the distributed data management system includes a first-level computer room and one or Multiple secondary computer rooms, the method includes:

When receiving the first data sent by the secondary computer room, extract the first content and the first time stamp included in the first data;

If there is second data with the same content as the first content in the memory of the first-level computer room, extract the second time stamp of the second data;

If the first time stamp is greater than the second time stamp, delete the second data in the memory of the first-level computer room and store the first data in the memory of the first-level computer room.

The second aspect of the embodiments of the present application provides a data processing method, which is applied to a second-level computer room, where the second-level computer room is in a distributed data management system, and the distributed data management system includes a first-level computer room and one or more In a secondary computer room, the method includes:

When data writing is detected, obtain the source of the first data to be written;

If the first data comes from a first-level computer room, extract the first content and the first time stamp contained in the first data;

If there is second data with the same content as the first content in the memory of the secondary computer room, extract the second time stamp included in the second data;

If the first time stamp is greater than the second time stamp, delete the second data in the memory of the secondary computer room and store the first data in the memory of the secondary computer room.

The third aspect of the embodiments of the present application provides a data processing device, which is applied to a first-level computer room, where the first-level computer room is in a distributed data management system, and the distributed data management system includes a first-level computer room and one or Multiple secondary computer rooms, the device includes:

The first extraction module is configured to extract the first content and the first time stamp contained in the first data when the first data sent by the secondary computer room is received;

The second extraction module is configured to extract the second time stamp of the second data if the second data that is the same as the first content exists in the memory of the first-level computer room;

The processing module is configured to delete the second data in the memory of the first-level computer room and store the first data in the memory of the first-level computer room if the first time stamp is greater than the second time stamp middle.

The fourth aspect of the embodiments of the present application provides a data processing device, which is applied to a second-level computer room, where the second-level computer room is in a distributed data management system, and the distributed data management system includes a first-level computer room and one or Multiple secondary computer rooms, the device includes:

The obtaining module is used to obtain the source of the first data to be written when the data is detected to be written;

The first extraction module is configured to extract the second time stamp included in the second data if there is second data with the same content as the first content in the memory of the secondary computer room;

A second extraction module, configured to extract a second time stamp included in the second data if there is second data with the same content as the first content in the memory of the secondary computer room;

A processing module, configured to delete the second data in the secondary computer room memory and store the first data in the secondary computer room memory if the first time stamp is greater than the second time stamp middle.

The fifth aspect of the present application provides an electronic device, including: a memory, a processor, and a computer program that is stored in the memory and can run on the processor. When the processor executes the computer program, The steps in the data processing method provided by the first aspect and the second aspect.

The sixth aspect of the present application provides a storage medium on which a computer program is stored, and when the computer program is executed by a processor, the steps in the data processing method provided in the first aspect and the second aspect are implemented.

Beneficial effect

The data processing method, device, storage medium, and electronic device provided by the present application include: when receiving first data sent by a secondary computer room, acquiring first content and a first time stamp included in the first data;

If there is second data with the same content as the first content in the memory of the first-level computer room, obtain the second time stamp of the second data; if the first time stamp is greater than the second time stamp, delete the second data in the memory of the first-level computer room Data and store the first data in the memory of the first-level computer room. This method divides the multi-active computer room into a first-level computer room and a second-level computer room. The second-level computer room sends data to the first-level computer room, and the first-level computer room determines which data to save according to the timestamp. When multiple computer rooms are written at the same time, these written data are all sent to the first-level computer room. If there is no data with the same content as the received data in the first-level computer room, the received data is saved. If the data with the same content as the received data already exists in the first-level computer room, the time stamp of the data is compared, and the data with a larger time stamp is saved. In this way, the problem of simultaneous write conflicts in multiple computer rooms can be avoided, and the stability of data processing in multiple computer rooms can be improved.

Description of the drawings

Figure 1 is a schematic diagram of the structure of a distributed data management system;

FIG. 2 is a schematic flowchart of a data processing method provided by an embodiment of the application;

FIG. 3 is a schematic diagram of another flow of the data processing method provided by an embodiment of the application;

FIG. 4 is a schematic structural diagram of a data processing device provided by an embodiment of this application;

FIG. 5 is another schematic diagram of the structure of the data processing device provided by an embodiment of the application;

FIG. 6 is a schematic diagram of the structure of an electronic device.

Embodiments of the present invention

In order to make the purposes, features, and advantages of the present application more obvious and understandable, the technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the description The embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative work shall fall within the protection scope of this application.

FIG. 1 shows a schematic structural diagram of a distributed data management system. The data processing method provided in the embodiment of the present application can be applied to the distributed data management system 10 shown in FIG. 1.

As shown in FIG. 1, the distributed data management system 10 includes a first-level computer room 101 and one or more second-level computer rooms 102 (only three are shown in the figure). The first-level computer room 101 is used to receive the synchronized data information of the second-level computer room 102, and synchronize the information to other second-level computer rooms, so as to maintain data consistency. The secondary computer room 102 can receive written data from a local user, and synchronize the written data to the primary computer room 101. The secondary computer room 102 can also receive data synchronized by the primary computer room 101.

Based on the above-mentioned distributed data management system 10, in order to solve the problem of simultaneous writing conflicts when multiple secondary computer rooms write the same data at the same time in such a distributed data management system, which affects the stability of the computer room, this application provides a A data processing method, as shown in FIG. 2 is a schematic flow diagram of a data processing method provided in an embodiment of the application. The data processing method is applied to a first-level computer room, and the method includes the following steps:

Step 201: When receiving the first data sent by the secondary computer room, extract the first content and the first time stamp included in the first data.

In this embodiment of the application, after a local user in a secondary computer room writes data in the secondary computer room, the secondary computer room synchronizes the data written by the local user to the primary computer room so that the first-level computer room synchronizes the data Give it to other secondary computer rooms to ensure the consistency of data in the multi-active computer room. When the first-level computer room receives the first data sent by the second-level computer room, the first-level computer room performs information extraction on the first data before synchronously writing the first data into the memory of the first-level computer room, and extracts the first data. The first content and the first time stamp contained in the primary data. The so-called time stamp refers to a complete, verifiable data that can indicate that a piece of data has existed before a certain time. A timestamp is a piece of data, and the size of the timestamp can reflect the time when a piece of data is generated. Specifically, the larger the timestamp, the later the time when the data is generated. The first data contains the first time stamp information, which indicates that when the data in the secondary computer room is written, the secondary computer room will give the written data a time stamp.

Step 202: If there is second data with the same content as the first content in the memory of the first-level computer room, extract the time stamp of the second data.

In the embodiment of the present application, after extracting the first content of the received first data, it is retrieved in the memory of the first-level computer room whether there is data with the same content as the first content. The second time stamp of the second data is extracted. It is understandable that since the secondary computer room will give time stamps to the written data when writing data, and the data in the primary computer room is synchronized from the secondary computer room, the primary computer room itself does not have data writing Therefore, the data stored in the memory of the first-level computer room is also data with a time stamp. That is, the second time stamp contained in the second data can be extracted from the second data.

Step 203: If the first time stamp is greater than the second time stamp, delete the second data in the memory of the first-level computer room and store the first data in the memory of the first-level computer room.

In this embodiment of the application, the extracted first time stamp is compared with the second time stamp. When the first time stamp is greater than the second time stamp, it means that the generation time of the first data is at the time when the second data is generated. Later. The data generated earlier is deleted from the memory of the first-level computer room, and the data generated later is stored in the memory of the first-level computer room, that is, the first data is stored in the memory. If the first timestamp is less than the second timestamp, it means that the generation time of the first data is before the generation time of the second data. Therefore, the second data stored in the first-level computer room is still needed to be saved, so the first-level computer room refuses Writing of the first data.

According to the above description, the data processing method provided by the embodiment of the present application includes: when receiving the first data sent by the second-level computer room, extracting the first content and the first time stamp contained in the first data; There is second data with the same content as the first content in the memory, extract the time stamp of the second data; if the first time stamp is greater than the second time stamp, delete the second data in the memory of the first-level computer room and store the first data In the memory of the first-level computer room. This method is based on a hierarchical distributed data storage system. When the second-level computer room synchronizes data to the first-level computer room, the first-level computer room judges the data to be written synchronously according to the content of the data and the time stamp of the data. For data with the same content, It only accepts synchronous writing of data with larger timestamps, thus avoiding data writing conflicts and improving the stability of the multi-active computer room.

Further, if the first time stamp is greater than the second time stamp, after deleting the second data in the memory of the first-level computer room and storing the first data in the memory of the first-level computer room, the method further includes:

Send the first data to all secondary computer rooms.

In the embodiment of the present application, after determining that the first data meets the writing condition and storing the first data in the memory of the first-level computer room, the first-level computer room resynchronizes and sends the first data to all the second-level computer rooms, so as to achieve The consistency of the latest data in all computer rooms. It is understandable that the foregoing first data is also synchronized from one of the second-level computer rooms to the first-level computer room. Here, the second-level computer room that sends the first data to the first-level computer room may be referred to as the initial computer room. After the first data is stored in the memory of the first-level computer room, the first data may no longer be synchronously sent to the original computer room by the first-level computer room. Just send it to other secondary computer rooms.

Further, the above-mentioned data processing method further includes:

If the second data with the same content as the first content does not exist in the memory of the first-level computer room, store the first data in the memory of the first-level computer room;

Send first-level data to all second-level computer rooms.

In the embodiment of the present application, if it is determined that there is no second data with the same content as the first data after searching in the memory of the first-level computer room, the first data is stored in the memory of the first-level computer room to realize data synchronization. After storing the first data in the memory of the first-level computer room, the first-level computer room sends the first data to all the second-level computer rooms to realize the consistency of the data in all the computer rooms.

As shown in FIG. 3, another schematic flow chart of the data processing method provided by this embodiment of the application. The data processing method is applied to a secondary computer room, and the method includes the following steps:

Step 301: Obtain the source of the first data to be written when the first data write request is detected;

In the embodiment of the present application, when the secondary computer room detects that data is written, the source of the first data to be written is acquired. The first data to be written into the second-level computer room can be sent from the first-level computer room to the second-level computer room during data synchronization, or it can be written by a local user in the second-level computer room.

Step 302: If the first data comes from a first-level computer room, extract the first content and the first time stamp included in the first data.

In the embodiment of the present application, when it is determined that the first data source is from the first-level computer room, that is, when the first data is sent to the second-level computer room for data synchronization, the first content and the second data contained in the first data A timestamp for extraction.

Step 303: If there is second data with the same content as the first content in the memory of the secondary computer room, extract the second time stamp included in the second data.

In the embodiment of the present application, after the first content of the first data is extracted, the memory of the secondary computer room is searched for whether there is second data with the same content as the first content based on the first content. When it is retrieved that there is second data with the same content as the first content in the memory of the secondary computer room, the second time stamp included in the second data is extracted.

Step 304: If the first time stamp is greater than the second time stamp, delete the second data in the memory of the secondary computer room and store the first data in the memory of the secondary computer room.

In the embodiment of the present application, the first time stamp of the extracted first data is compared with the second time stamp of the second data. When the first time stamp is greater than the second time stamp, it indicates that the first data is generated When the time is later than the generation time of the second data, delete the second data stored in the memory of the secondary computer room and store the first data in the memory of the secondary computer room, that is, update the data stored in the memory of the secondary computer room to the first Data, that is, the first data in the first-level computer room is synchronized to the second-level computer room. It is understandable that if the first time error is not greater than the second time stamp, it appears that the generation time of the first data is earlier than the generation time of the second data. In this case, the secondary computer room does not accept the writing of the first data and still retains the first data. Two data. Further, since the second data stored in the second-level computer room will also be synchronized to the first-level computer room, the first-level computer room will update the first data stored in the memory of the first-level computer room to the second data and synchronize the second data to Other secondary computer rooms, so as to achieve data consistency in multi-active computer rooms.

Further, the above method also includes:

If the second data with the same content as the first content does not exist in the memory of the secondary computer room, the first data is stored in the memory of the secondary computer room.

In the embodiment of the present application, when it is detected that there is no second data in the storage of the secondary computer room with the same content as the first data sent by the primary computer room, it indicates that the first data is new data, so the first data is stored In the memory of the secondary computer room.

Further, the above method also includes:

If the first data source is locally input from the secondary computer room, obtain the third content contained in the first data and generate a third time stamp for the first data;

If there is fourth data with the same content as the third content in the memory of the secondary computer room, obtain the fourth time stamp included in the fourth data;

If the third time stamp is greater than the fourth time stamp, delete the fourth data in the secondary computer room memory and store the first data in the secondary computer room memory, and send the first data to the primary computer room;

If the third time stamp is not greater than the fourth time stamp, the fifth data is generated. The fifth data includes the third content and the fifth time stamp. The value of the fifth time stamp is equal to the fourth time stamp plus one, and the fifth data is stored in The fifth data is sent to the first-level computer room in the memory of the second-level computer room.

In this embodiment of the application, if it is identified that the first data source is locally input from the secondary computer room, the content of the data is obtained, the first data content is determined to be the third content, and the secondary computer room automatically generates the corresponding data according to the time of data input The third timestamp. Retrieve whether there is fourth data with the same content as the third content in the memory of the secondary computer room, and if it exists, obtain the fourth time stamp of the fourth data. Compare the third time error with the fourth time stamp, if the third time stamp is greater than the fourth time stamp, delete the fourth data in the memory of the secondary computer room and store the first data in the memory of the secondary computer room, The first data is sent to the first-level computer room so that the first-level computer room can synchronize the data to other second-level computer rooms. If the third time stamp is not greater than the fourth time stamp, then fifth data is generated, the fifth data includes the third content and the fifth time stamp, and the value of the fifth time stamp is equal to the fourth time stamp plus 1. For example, the third time stamp of the input first data is 123456, and the fourth time stamp of the fourth data stored in the storage of the secondary computer room is 123459, indicating that the fourth data is not input locally but synchronized from the primary computer room Because of the certain differences in the local stamps of different secondary computer rooms, the time stamp of the data stored in the secondary computer room may be greater than the time stamp of the same data input locally. At this time, it is determined that a fifth time stamp is 123459+1=123460, and it is determined that the fifth data includes the third content and the fifth time stamp. The fifth data is stored in the memory of the second-level computer room, and the fifth data is sent to the first-level computer room so that the first-level computer room can synchronize the data to other second-level computer rooms.

The data processing method provided by the method ensures that the locally input data can be input, and the time stamp of the data can be kept increasing, avoiding data writing conflicts, and can effectively ensure the consistency of the data stored in the multi-active computer room.

Further, the above method also includes:

If the fourth data with the same content as the third content does not exist in the memory of the secondary computer room, store the first data in the memory of the secondary computer room;

Send the first data to the first-level computer room.

In the embodiment of the present application, when the data input locally in the secondary computer room cannot be retrieved in its memory with the same content, the locally input data is stored in the memory of the computer room, and the data is synchronized to the primary computer room. Computer room, so that the first-level computer room can synchronize the data to other second-level computer rooms.

As shown in FIG. 4, this is a schematic structural diagram of a data processing device provided by an embodiment of this application. The data processing device is used in a first-level computer room, and the data processing device includes the following modules:

The first extraction module 401 is configured to extract the first content and the first time stamp contained in the first data when the first data sent by the secondary computer room is received;

The second extraction module 402 is configured to extract the second time stamp of the second data when the second data that is the same as the first content exists in the memory of the first-level computer room;

The processing module 403 is configured to delete the second data in the memory of the first-level computer room and store the first data in the memory of the first-level computer room if the first time stamp is greater than the second time stamp.

It can be understood that the functions of the modules of the data processing apparatus provided in the embodiment of the present application are consistent with the content of the steps recorded in the embodiment of FIG. 2, and will not be repeated here.

Further, as shown in FIG. 5, another schematic diagram of the structure of the data processing device provided in this embodiment of the application. The data processing device is used in a secondary computer room, and the data processing device includes the following modules:

The obtaining module 501 is configured to obtain the source of the first data to be written when the first data writing request is detected;

The first extraction module 502 is configured to extract the second time stamp contained in the second data if there is second data with the same content as the first content in the memory of the secondary computer room;

The second extraction module 503 is configured to extract the second time stamp contained in the second data if there is second data with the same content as the first content in the memory of the secondary computer room;

The processing module 504 is configured to delete the second data in the memory of the secondary computer room and store the first data in the memory of the secondary computer room if the first time stamp is greater than the second time stamp.

It is understandable that the functions of the modules of the data processing apparatus provided in the embodiment of the present application are the same as the content of the steps of the data processing method provided in the embodiment of FIG. 3, and will not be repeated here.

Further, an embodiment of the present application also provides an electronic device. The electronic device can be used to implement the data processing method in the foregoing embodiment. As shown in Figure 6, the electronic device mainly includes:

A memory 601, a processor 602, a bus 603, and a computer program stored on the memory 601 and capable of running on the processor 602, and the memory 601 and the processor 602 are connected through the bus 603. When the processor 602 executes the computer program, it implements the data processing method in the foregoing embodiment. Among them, the number of processors can be one or more.

The memory 601 may be a high-speed random access memory (RAM, Random Access Memory) memory, or a non-volatile memory (non-volatile memory). memory), such as disk storage. The memory 601 is used to store executable program codes, and the processor 602 is coupled with the memory 601.

Further, an embodiment of the present application also provides a storage medium, the storage medium may be the electronic device provided in the foregoing embodiments, and the computer-readable storage medium may be the memory in the foregoing embodiment shown in FIG. 6 .

A computer program is stored on the storage medium, and when the program is executed by the processor, the data processing method in the foregoing embodiment is implemented. Further, the computer storage medium may also be a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), RAM, magnetic disks or optical disks and other media that can store program codes.

In the several embodiments provided in this application, it should be understood that the disclosed device and method may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of modules is only a logical function division, and there may be other divisions in actual implementation, for example, multiple modules or components can be combined or integrated. To another system, or some features can be ignored, or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or modules, and may be in electrical, mechanical or other forms.

The modules described as separate components may or may not be physically separate, and the components displayed as modules may or may not be physical modules, that is, they may be located in one place, or they may be distributed on multiple network modules. Some or all of the modules can be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

In addition, each functional module in each embodiment of the present application may be integrated into one processing module, or each module may exist alone physically, or two or more modules may be integrated into one module. The above-mentioned integrated modules can be implemented in the form of hardware or software function modules.

If the integrated module is implemented in the form of a software function module and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solution of this application essentially or the part that contributes to the existing technology or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a readable storage. The medium includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods in the various embodiments of the present application. The aforementioned readable storage medium includes: U disk, mobile hard disk, ROM, RAM, magnetic disk or optical disk and other media that can store program codes.

It should be noted that for the foregoing method embodiments, for simplicity of description, they are all expressed as a series of action combinations, but those skilled in the art should know that this application is not limited by the described sequence of actions. Because according to this application, some steps can be performed in other order or at the same time. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the involved actions and modules are not necessarily all required by this application.

In the above-mentioned embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in an embodiment, reference may be made to related descriptions of other embodiments.

The above is a description of the data processing method, device, electronic device, and readable storage medium provided by this application. For those skilled in the art, according to the ideas of the embodiments of this application, there will be changes in the specific implementation and the scope of application. In summary, the content of this specification should not be construed as a limitation to this application.

Claims

A data processing method is applied to a first-level computer room, the first-level computer room is in a distributed data management system, and the distributed data management system includes one first-level computer room and one or more second-level computer rooms, and is characterized in , The method includes:

When receiving the first data sent by the secondary computer room, extract the first content and the first time stamp included in the first data;

If there is second data with the same content as the first content in the memory of the first-level computer room, extract the second time stamp of the second data;

If the first time stamp is greater than the second time stamp, delete the second data in the memory of the first-level computer room and store the first data in the memory of the first-level computer room.
The data processing method according to claim 1, wherein if the first time stamp is greater than the second time stamp, the second data in the memory of the first-level computer room is deleted and the first time After a piece of data is stored in the memory of the first-level computer room, it further includes:

Send the first data to all secondary computer rooms.
The data processing method according to claim 2, wherein the method further comprises:

If there is no second data with the same content as the first content in the memory of the first-level computer room, storing the first data in the memory of the first-level computer room;

Send the first data to all secondary computer rooms.
A data processing method is applied to a secondary computer room, the secondary computer room is in a distributed data management system, and the distributed data management system includes a primary computer room and one or more secondary computer rooms, and is characterized in , The method includes:

When the first data write request is detected, obtain the source of the first data to be written;

If the first data comes from a first-level computer room, extract the first content and the first time stamp contained in the first data;

If there is second data with the same content as the first content in the memory of the secondary computer room, extract the second time stamp included in the second data;

If the first time stamp is greater than the second time stamp, delete the second data in the memory of the secondary computer room and store the first data in the memory of the secondary computer room.
The data processing method according to claim 4, wherein the method further comprises:

If the second data with the same content as the first content does not exist in the memory of the secondary computer room, the first data is stored in the memory of the secondary computer room.
The data processing method according to claim 5, wherein the method further comprises:

If the first data source is locally input from the secondary computer room, acquiring the third content included in the first data and generating a third time stamp for the first data;

If there is fourth data with the same content as the third content in the memory of the secondary computer room, acquiring the fourth time stamp included in the fourth data;

If the third time stamp is greater than the fourth time stamp, delete the fourth data in the memory of the secondary computer room and store the first data in the memory of the secondary computer room, and store the Sending the first data to the first computer room;

If the third time stamp is not greater than the fourth time stamp, fifth data is generated, the fifth data includes the third content and a fifth time stamp, and the value of the fifth time stamp is equal to the first time stamp. Four timestamps plus one, store the fifth data in the memory of the secondary computer room and send the fifth data to the primary computer room.
The data processing method according to claim 6, wherein the method further comprises:

If the fourth data with the same content as the third content does not exist in the memory of the secondary computer room, storing the first data in the memory of the secondary computer room;

Sending the first data to the first-level computer room.
A data processing device is applied to a first-level computer room, the first-level computer room is in a distributed data management system, and the distributed data management system includes a first-level computer room and one or more second-level computer rooms, and is characterized in , The device includes:

The first extraction module is configured to extract the first content and the first time stamp contained in the first data when the first data sent by the secondary computer room is received;

The second extraction module is configured to extract the second time stamp of the second data if the second data that is the same as the first content exists in the memory of the first-level computer room;

The processing module is configured to delete the second data in the memory of the first-level computer room and store the first data in the memory of the first-level computer room if the first time stamp is greater than the second time stamp middle.
A data processing device is applied to a secondary computer room, the secondary computer room is in a distributed data management system, and the distributed data management system includes a primary computer room and one or more secondary computer rooms, and is characterized in , The device includes:

The obtaining module is used to obtain the source of the first data to be written when the first data writing request is detected;

The first extraction module is configured to extract the second time stamp included in the second data if there is second data with the same content as the first content in the memory of the secondary computer room;

A second extraction module, configured to extract a second time stamp included in the second data if there is second data with the same content as the first content in the memory of the secondary computer room;

A processing module, configured to delete the second data in the secondary computer room memory and store the first data in the secondary computer room memory if the first time stamp is greater than the second time stamp middle.
An electronic device, comprising: a memory, a processor, and a computer program stored on the memory and running on the processor, wherein the processor implements claim 1 when the processor executes the computer program Steps in the data processing method described in any one of to 7.
A storage medium having a computer program stored thereon, wherein the computer program implements the steps in the data processing method of any one of claims 1 to 7 when the computer program is executed by a processor.