Method, apparatus, and management node for managing data in partition table, and storage medium

1. A method comprising:

obtaining a creation duration range of data of a target partition in a partition table, wherein the creation duration range is a combination of a minimum duration and a maximum duration, wherein the minimum duration is a first distance between a maximum time in a creation time range and a current time point, and wherein the maximum duration is a second distance between a minimum time in the creation time range and the current time point;

obtaining a geographical area to which the target partition belongs, historical access information of the target partition, or a service type of the target partition; and

altering, when the creation duration range meets a predetermined time range of a first storage stage and when a preset condition is met, the data that have been stored based on a second storage policy corresponding to a second storage stage,

wherein the second storage stage is to be stored based on a first storage policy corresponding to the first storage stage,

wherein a first storage performance of the first storage stage is lower than a second storage performance of the second storage stage, and

wherein the preset condition is that the geographical area is a target area, the historical access information meets a target condition, or the service type is a target service type.

2. The method of claim 1 , wherein the historical access information comprises a last access time of the target partition.

3. The method of claim 1 , wherein the historical access information comprises an access frequency of the target partition within a duration closest to the current time point.

4. The method of claim 3 , wherein the target condition is that the access frequency is less than a first value.

5. The method of claim 1 , wherein the target condition is that a duration is greater than a second value, and wherein the duration is from a last access time of the target partition to the current time point.

6. The method of claim 1 , further comprising storing, when the second storage stage is a hot data storage stage, when the first storage stage is a warm data storage stage, and based on a storage replica number corresponding to the warm data storage stage, the data in a storage area corresponding to the warm data storage stage.

7. The method of claim 1 , further comprising storing, when the second storage stage is a warm data storage stage and the first storage stage is a cold data storage stage, the data in a storage area corresponding to the cold data storage stage and in an erasure coding (EC) format.

8. The method according to claim 1 , further comprising establishing a mapping relationship between a Hadoop distributed file system (HDFS) directory of the target partition and a data block that is of the target partition and that is stored in a storage area corresponding to the first storage stage.

9. A method comprising:

obtaining a creation duration range of data of a target partition in a partition table, wherein the creation duration range is a combination of a minimum duration and a maximum duration, wherein the minimum duration is a first distance between a maximum time in a creation time range and a current time point, and wherein the maximum duration is a second distance between a minimum time in the creation time range and the current time point; and

altering, when the creation duration range meets a predetermined time range of a first storage stage, the data that have been stored based on a second storage policy corresponding to a second storage stage,

wherein the second storage stage is to be stored based on a first storage policy corresponding to the first storage stage,

wherein a first storage performance of the first storage stage is lower than a second storage performance of the second storage stage,

wherein the first storage stage is a warm data storage stage when the second storage stage is a hot data storage stage, and

wherein the first storage stage is a cold data storage stage when the second storage stage is the warm data storage stage.

10. The method of claim 9 , wherein when the minimum duration is less than a first threshold in the hot data storage stage, the minimum duration is greater than or equal to the first threshold in the warm data storage stage and less than a second threshold in the warm data storage stage.

11. The method of claim 9 , wherein when the minimum duration is greater than or equal to a first threshold in the hot data storage stage and when the minimum duration is less than a second threshold in the warm data storage stage, the minimum duration is greater than or equal to the second threshold in the cold data storage stage.

12. A management node comprising:

a memory configured to store instructions; and

a processor coupled to the memory and configured to execute the instructions to cause the management node to:

obtain a creation duration range of data of a target partition in a partition table, wherein the creation duration range is a combination of a minimum duration and a maximum duration, wherein the minimum duration is a first distance between a maximum time in a creation time range and a current time point, and wherein the maximum duration is a second distance between a minimum time in the creation time range and the current time point;

obtain a geographical area to which the target partition belongs, historical access information of the target partition, or a service type of the target partition; and

alter, when the creation duration range meets a predetermined time range of a first storage stage and when a preset condition is met, the data that have been stored based on a second storage policy corresponding to a second storage stage,

wherein the second storage stage is to be stored based on a first storage policy corresponding to the first storage stage,

wherein a first storage performance of the first storage stage is lower than a second storage performance of the second storage stage, and

wherein the preset condition is that the geographical area is a target area, the historical access information meets a target condition, or the service type is a target service type.

13. The management node of claim 12 , wherein the historical access information comprises a last access time of the target partition or comprises an access frequency of the target partition within a first duration closest to the current time point.

14. The management node of claim 13 , wherein the target condition is that the access frequency is less than a first value or is that a duration is greater than a second value, and wherein the duration is from the last access time to the current time point.

15. The management node of claim 12 , wherein the processor is further configured to execute the instructions to cause the management node to store when the second storage stage is a hot data storage stage, when the first storage stage is a warm data storage stage, and based on a storage replica number corresponding to the warm data storage stage, the data in a storage area corresponding to the warm data storage stage.

16. The management node of claim 12 , wherein the processor is further configured to execute the instructions to cause the management node to store, when the second storage stage is a warm data storage stage and the first storage stage is a cold data storage stage, the data in a storage area corresponding to the cold data storage stage and in an erasure coding (EC) format.

17. The management node according to claim 12 , wherein the processor is further configured to execute the instructions to cause the management node to establish a mapping relationship between a Hadoop distributed file system (HDFS) directory of the target partition and a data block that is of the target partition and that is stored in a storage area corresponding to the first storage stage.

18. A management node comprising:

a memory configured to store instructions; and

a processor coupled to the memory and configured to execute the instructions to cause the management node to:

obtain a creation duration range of data of a target partition in a partition table, wherein the creation duration range is a combination of a minimum duration and a maximum duration, wherein the minimum duration is a first distance between a maximum time in a creation time range and a current time point, and wherein the maximum duration is a second distance between a minimum time in the creation time range and the current time point; and

alter, when the creation duration range meets a predetermined time range of a first storage stage, the data that have been stored based on a second storage policy corresponding to a second storage stage,

wherein the second storage stage is to be stored based on a first storage policy corresponding to the first storage stage,

wherein a first storage performance of the first storage stage is lower than a second storage performance of the second storage stage,

wherein the first storage stage is a warm data storage stage when the second storage stage is a hot data storage stage, and

wherein the first storage stage is a cold data storage stage when the second storage stage is the warm data storage stage.

19. The management node of claim 18 , wherein when the minimum duration is less than a first threshold in the hot data storage stage, the minimum duration is greater than or equal to the first threshold in the warm data storage stage and less than a second threshold in the warm data storage stage.

20. The management node of claim 18 , wherein when the minimum duration is greater than or equal to a first threshold in the hot data storage stage and when the minimum duration is less than a second threshold in the warm data storage stage, the minimum duration is greater than or equal to the second threshold in the cold data storage stage.