OBJECT DATA UPDATING METHOD AND APPARATUS IN AN OBJECT STORAGE SYSTEM

• US 20170193034A1
• Filed: 08/24/2016
• Published: 07/06/2017
• Est. Priority Date: 01/04/2016
• Status: Active Grant

• Current Assignee: Beijing Baidu Netcom Science and Technology Company Limited (Baidu Incorporated)
• Original Assignee: Beijing Baidu Netcom Science and Technology Company Limited (Baidu Incorporated)
• Inventors: Zhang, Chen, Yang, Fenqiang
• Granted Patent: US 10,380,103 B2
• Time in Patent Office: Days
• CPC Class Codes: G06F 16/22 Indexing; Data structures therefor; Storage structures
• CPC Class Codes: G06F 16/2379 Updates performed during online database operations; commit processing
• CPC Class Codes: G06F 16/289 Object oriented databases

Abstract

The present application discloses an object data updating method and apparatus in an object storage system. The method according to an embodiment includes: receiving an object data updating request of a user, the object data updating request comprising a type of the updating request and identity information of the object data to be updated; obtaining the metadata of the object data to be updated based on the identity information of the object data to be updated; executing a first predefined operation on the metadata of the object data to be updated based on the type of the updating request; obtaining the actual data of the object data to be updated based on the identity information of the object data to be updated; and executing a second predefined operation on the actual data of the object data to be updated based on the type of the updating request. The embodiment achieves efficient deletion/copying of the object data in the object storage system.

Claims

1. An object data updating method in an object storage system, the object storage system storing multiple object data, and each piece of the object data comprising metadata and actual data stored in slices;

the method comprising;

receiving an object data updating request of a user, the object data updating request comprising a type of the updating request and identity information of the object data to be updated;

obtaining the metadata of the object data to be updated based on the identity information of the object data to be updated;

executing a first predefined operation on the metadata of the object data to be updated based on the type of the updating request;

obtaining the actual data of the object data to be updated based on the identity information of the object data to be updated; and

executing a second predefined operation on the actual data of the object data to be updated based on the type of the updating request.

2. The method of claim 1, wherein the type of the updating request comprises a copying request, and the object data to be updated comprises object data to be copied;

the identity information of object data to be updated comprises source storage address information and target storage address information of the object data to be copied;

the executing a first predefined operation on the metadata of the object data to be updated based on the type of the updating request comprises;

storing the metadata of the object data to be copied in a target storage address as the metadata of target object data; and

the executing a second predefined operation on the actual data of the object data to be updated based on the type of the updating request comprises;

storing the actual data of the object data to be copied in a target storage address as the actual data of the target object data.

3. The method of claim 2, wherein the storing the metadata of the object data to be copied in a target storage address as the metadata of the target object data comprises:

adding a copying task identifier in the metadata of the object data to be copied.

4. The method of claim 3, wherein the metadata of the object data to be copied comprises current slicing information of the actual data of the object data to be updated;

after copying the actual data of the object data to be copied to the target storage address to generate the actual data of the target object data, the method further comprises;

deleting the copying task identifier; and

updating the metadata of the target object data, resulting in the metadata of the target object data including the current slicing information of the actual data of the target object data.

5. The method of claim 1, wherein the type of the updating request comprises a deletion request, and the object data to be updated comprises object data to be deleted;

the metadata of the object data to be deleted comprises current slicing information of the actual data of the object data to be deleted and historical slicing information of the actual data of the object data to be deleted;

the executing a first predefined operation on the metadata of the object data to be updated based on the type of the updating request comprises;

deleting the current slicing information of the actual data of the object data to be deleted; and

the executing a second predefined operation on the actual data of the object data to be updated based on the type of the updating request comprises;

deleting the actual data of the object data to be deleted.

6. The method of claim 5, wherein after deleting the actual data of the object data to be deleted, the method further comprises:

deleting the historical slicing information in the metadata of the object data to be deleted.

7. The method of claim 1, wherein the object data updating request comprises user identity information;

the receiving an object data updating request of a user comprises;

determining operation privilege of the user based on the user identity information;

the obtaining the metadata of the object data to be updated based on the identity information of the object data to be updated comprises;

obtaining the metadata of the object data to be updated based on predefined operation privilege of the user;

the obtaining the actual data of the object data to be updated based on the identity information of the object data to be updated comprises;

obtaining the actual data of the object data to be updated based on the predefined operation privilege of the user.

8. An object data updating apparatus in an object storage system, the object storage system storing multiple object data, and each piece of the object data comprising metadata and actual data stored in slices;

the apparatus comprising;

a receiving module configured to receive an object data updating request of a user, the object data updating request comprising a type of the updating request and identity information of the object data to be updated;

a first obtaining module configured to obtain the metadata of the object data to be updated based on the identity information of the object data to be updated;

a first execution module configured to execute a first predefined operation on the metadata of the object data to be updated based on the type of the updating request;

a second obtaining module configured to obtain the actual data of the object data to be updated based on the identity information of the object data to be updated; and

a second execution module configured to execute a second predefined operation on the actual data of the object data to be updated based on the type of the updating request.

9. The apparatus of claim 8, wherein the type of the updating request comprises a copying request, the object data to be updated comprises object data to be copied, and the identity information of object data to be updated comprises source storage address information and target storage address information of the object data to be copied;

the first execution module comprises a first copying unit configured to store the metadata of the object data to be copied in a target storage address as the metadata of the target object data; and

the second execution module comprises a second copying unit configured to store the actual data of the object data to be copied in a target storage address as the actual data of the target object data.

10. The apparatus of claim 9, wherein the first copying unit is further configured to:

add a copying task identifier in the metadata of the object data to be copied.

11. The apparatus of claim 10, wherein the metadata of the object data to be copied comprise current slicing information of the actual data of the object data to be updated;

the apparatus further comprises a metadata updating module configured to;

after the second copying unit stores the actual data of the object data to be copied in the target storage address as the actual data of the target object data, delete the copying task identifier, and update the metadata of the target object data, resulting in the metadata of the target object data including the current slicing information of the actual data of the target object data.

12. The apparatus of claim 8, wherein the type of the updating request comprises a deletion request, and the object data to be updated comprises object data to be deleted;

the metadata of the object data to be deleted comprises current slicing information of the actual data of the object data to be deleted and historical slicing information of the actual data of the object data to be deleted;

the first execution module comprises a first deletion unit configured to delete the current slicing information in the metadata of the object data to be deleted; and

the second execution module comprises a second deletion unit configured to delete the actual data of the object data to be deleted.

13. The apparatus of claim 12, wherein the second deletion unit is further configured to:

delete the historical slicing information in the metadata of the object data to be deleted after deleting the actual data of the object data to be deleted.

14. The apparatus of claim 8, wherein the object data updating request comprises user identity information;

the receiving module further comprises a privilege determining unit configured to determine operation privilege of the user based on the user identity information;

the first execution module is further configured to;

obtain the metadata of the object data to be updated based on predefined operation privilege of the user determined by the privilege determining unit; and

the second execution module is further configured to;

obtain the actual data of the object data to be updated based on the predefined operation privilege of the user determined by the privilege determining unit.

15. A non-transitory computer storage medium storing a computer program, which when executed by one or more computers, cause the one or more computers to perform an object data updating method in an object storage system, the object storage system storing multiple object data, and each piece of the object data comprising metadata and actual data stored in slices;

the method comprising;

receiving an object data updating request of a user, the object data updating request comprising a type of the updating request and identity information of the object data to be updated;

obtaining the metadata of the object data to be updated based on the identity information of the object data to be updated;

executing a first predefined operation on the metadata of the object data to be updated based on the type of the updating request;

obtaining the actual data of the object data to be updated based on the identity information of the object data to be updated; and

executing a second predefined operation on the actual data of the object data to be updated based on the type of the updating request.