Consistent hashing configurations supporting multi-site replication

Patent metadata

Field	Value
Publication number	US-10831714-B2
Application number	US-201916269813-A
Country	US
Kind code	B2
Filing date	Feb 7, 2019
Priority date	Oct 4, 2016
Publication date	Nov 10, 2020
Grant date	Nov 10, 2020

Abstract

A computer-implemented method, according to one embodiment, includes: sending management data to a designated common cell in a namespace of a central storage location from one or more remote storage locations. The management data corresponds to object data stored at the one or more remote storage locations. the object data stored at each of the one or more remote storage locations is further transferred to a respective cell in the namespace of the central storage location. Moreover, a modified consistency hashing algorithm configuration is implemented. The modified consistency hashing algorithm configuration routes updates of existing object data in the one or more remote storage locations to the respective cells in the central storage location. Other systems, methods, and computer program products are described in additional embodiments.

First claim

What is claimed is:

1. A computer-implemented method, comprising:
sending management data to a designated common cell in a namespace of a central storage location from one or more remote storage locations, wherein the management data corresponds to object data stored at the one or more remote storage locations;
transferring the object data stored at each of the one or more remote storage locations to a respective cell in the namespace of the central storage location; and
implementing a modified consistency hashing algorithm configuration,
wherein the modified consistency hashing algorithm configuration routes updates of existing object data in the one or more remote storage locations to the respective cells in the central storage location.

2. The computer-implemented method of claim 1 , comprising:
sending on-demand pre-fetch requests for object data to the respective cells in the namespace of the central storage location.

3. The computer-implemented method of claim 1 , wherein the modified consistency hashing algorithm configuration routes requests to the management data sent from the remote storage locations to the common cell in the central storage location.

4. The computer-implemented method of claim 1 , wherein each of the central storage location and the remote storage locations include an equal number of Internet Protocol addresses.

5. The computer-implemented method of claim 1 , comprising:
using a common authentication server configured to communicate with the central storage location and the remote storage locations.

6. The computer-implemented method of claim 1 , wherein the central storage location and the remote storage locations are connected over a wide area network.

7. A computer program product comprising a computer readable storage medium having program instructions embodied therewith, the program instructions executable by a processor to cause the processor to:
send, by the processor, management data to a designated common cell in a namespace of a central storage location from one or more remote storage locations, wherein the management data corresponds to object data stored at the one or more remote storage locations;
transfer, by the processor, the object data stored at each of the one or more remote storage locations to a respective cell in the namespace of the central storage location; and
implement, by the processor, a modified consistency hashing algorithm configuration,
wherein the modified consistency hashing algorithm configuration routes updates of existing object data in the one or more remote storage locations to the respective cells in the central storage location.

8. The computer program product of claim 7 , wherein the program instructions are executable by the processor to cause the processor to:
send, by the processor, on-demand pre-fetch requests for object data to the respective cells in the namespace of the central storage location.

9. The computer program product of claim 7 , wherein the modified consistency hashing algorithm configuration routes requests to the management data sent from the remote storage locations to the common cell in the central storage location.

10. The computer program product of claim 7 , wherein each of the central storage location and the remote storage locations include an equal number of Internet Protocol addresses.

11. The computer program product of claim 7 , wherein the program instructions are executable by the processor to cause the processor to:
use, by the processor, a common authentication server configured to communicate with the central storage location and the remote storage locations.

12. The computer program product of claim 7 , wherein the central storage location and the remote storage locations are connected over a wide area network.

13. A system, comprising:
a processor; and
logic integrated with the processor, executable by the processor, or integrated with and executable by the processor, the logic being configured to:
send, by the processor, management data to a designated common cell in a namespace of a central storage location from one or more remote storage locations, wherein the management data corresponds to object data stored at the one or more remote storage locations;
transfer, by the processor, the object data stored at each of the one or more remote storage locations to a respective cell in the namespace of the central storage location;
implement, by the processor, a modified consistency hashing algorithm configuration; and
send, by the processor, on-demand pre-fetch requests for object data to the respective cells in the namespace of the central storage location,
wherein the modified consistency hashing algorithm configuration routes updates of existing object data in the one or more remote storage locations to the respective cells in the central storage location.

14. The system of claim 13 , wherein the modified consistency hashing algorithm configuration routes requests to the management data sent from the remote storage locations to the common cell in the central storage location.

15. The system of claim 13 , wherein each of the central storage location and the remote storage locations include an equal number of Internet Protocol addresses.

16. The system of claim 13 , the logic being configured to:
use, by the processor, a common authentication server configured to communicate with the central storage location and the remote storage locations.

17. The system of claim 13 , wherein the central storage location and the remote storage locations are connected over a wide area network.

Assignees

• IBM

Inventors

• Eda Sasikanth
• Gandhi Sanjay Vipin
• Hildebrand Dean
• Nayar Trishali Satish
• Nelson Brian
• Owen William W
• Patil Sandeep Ramesh
• Raut Smita J

Classifications

• G06F3/067

  Distributed or networked storage systems, e.g. storage area networks [SAN], network attached storage [NAS] · CPC title

• G06F3/0622

  in relation to access · CPC title

• G06F16/164

  File meta data generation · CPC title

• H04L67/1023

  based on a hash applied to IP addresses or costs · CPC title

• H04L67/1097

  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] · CPC title