Data processing method and apparatus
A data processing technology is provided, and is applied to a partition management device. The partition management device stores a partition view, the partition view records a correspondence between an ID of a current partition and an address of a storage disk, and a total quantity of current partitions may be less than a total quantity of final partitions.
1. A method, comprising:
managing, by a partition management controller, a plurality of current partitions for a first plurality of storage disks in a cluster of storage disks;
determining, by the partition management controller, that an additional one or more storage disks have been added to the cluster of storage disks;
when the addition of the one or more storage disks causes an average quantity of current partitions per storage disk of the cluster of storage disks to meet a first condition, and causes the average quantity of current partitions per storage disk of the cluster of storage disks to not meet a second condition, splitting, by the partition management controller, at least one of the current partitions to obtain at least one additional partition, which results in a new total quantity of current partitions; and
allocating, by the partition management controller, the at least one additional partition to a second plurality of storage disks in the cluster of storage disks.
2. The method according to claim 1 , wherein:
each partition of the plurality of current partitions after splitting corresponds to at least one final partition.
3. The method according to claim 2 , wherein after allocating the at least one additional partition, the method further comprises:
receiving a first visiting to the final partition; and
transforming the first visiting to a second visiting to a current partition, the current partition corresponding to the final partition of the first visiting.
4. The method according to claim 1 , wherein:
the first condition is a first value; and
the second condition is a second value.
5. The method according to claim 1 , wherein:
the new total quantity of current partitions for the first plurality of storage disks in the cluster of storage disks after the splitting is no more than a preset quantity of final partitions.
6. The method according to claim 1 , wherein:
IDs of the plurality of current partitions for the first plurality of storage disks in the cluster of storage disks after the splitting are continuous natural numbers.
7. A device, comprising:
a processor; and
a computer-readable storage medium storing a program to be executed by the processor, the program including instructions for:
managing a plurality of current partitions for a first plurality of storage disks in a cluster of storage disks;
determining that an additional one or more storage disks have been added to the cluster of storage disks;
when the addition of the one or more storage disks causes an average quantity of current partitions per storage disk of the cluster of storage disks to meet a first condition, and causes the average quantity of current partitions per storage disk of the cluster of storage disks to not meet a second condition, splitting at least one of the current partitions to obtain at least one additional partition, which results in a new total quantity of current partitions; and
allocating the at least one additional partition to a second plurality of storage disks in the cluster of storage disks.
8. The device according to claim 7 , wherein:
each partition of the plurality of current partitions after splitting corresponds to at least one final partition.
9. The device according to claim 8 , wherein the program further includes instructions for:
receiving a first visiting to the final partition; and
transforming the first visiting to a second visiting to a current partition, the current partition corresponding to the final partition of the first visiting.
10. The device according to claim 7 , wherein:
the first condition is a first value; and
the second condition is a second value.
11. The device according to claim 7 , wherein:
the new total quantity of current partitions for the first plurality of storage disks in the cluster of storage disks after splitting is no more than a preset quantity of final partitions.
12. The device according to claim 7 , wherein:
IDs of the plurality of current partitions for the first plurality of storage disks in the cluster of storage disks after the splitting are continuous natural numbers.
13. A non-transitory computer readable medium storing instructions that, when executed by one or more processors, causes a device to:
manage a plurality of current partitions for a first plurality of storage disks in a cluster of storage disks;
determine that an additional one or more storage disks have been added to the cluster of storage disks;
when the addition of the one or more storage disks causes an average quantity of current partitions per storage disk of the cluster of storage disks to meet a first condition, and causes the average quantity of current partitions per storage disk of the cluster of storage disks to not meet a second condition, split at least one of the current partitions to obtain at least one additional partition, which results in a new total quantity of current partitions; and
allocate the at least one additional partition to a second plurality of storage disks in the cluster of storage disks.
14. The medium according to claim 13 , wherein:
each partition of the plurality of current partitions after the splitting corresponds to at least one final partition.
15. The medium according to claim 14 , wherein the instructions, when executed by the one or more processors, further causes the device to:
receive a first visiting to the final partition; and
transform the first visiting to a second visiting to a current partition, the current partition corresponding to the final partition of the first visiting.
16. The medium according to claim 13 , wherein:
the first condition is a first value; and
the second condition is a second value.
17. The medium according to claim 13 , wherein:
the new total quantity of current partitions for the first plurality of storage disks in the cluster of storage disks after splitting is no more than a preset quantity of final partitions.
18. The medium according to claim 13 , wherein:
IDs of the plurality of current partitions for the first plurality of storage disks in the cluster of storage disks after splitting are continuous natural numbers.