Configuration update management

• US 10,698,607 B2
• Filed: 05/19/2015
• Issued: 06/30/2020
• Est. Priority Date: 05/19/2015
• Status: Active Grant

• Current Assignee: NetApp, Inc.
• Original Assignee: NetApp, Inc.
• Inventors: Dey, Chinmoy, Vijayan, Anoop Chakkalakkal, Srinivas, Prasad
• Primary Examiner(s): Rossiter, Sean D
• Assistant Examiner(s): Wu, Stephanie
• Application Number:
  US14/715,745
• Publication Number:
  US 20160342335A1
• Time in Patent Office: 1,869 Days
• Field of Search: None
• CPC Class Codes: G06F 3/0607 by facilitating the process of upgrading existing storage systems, e.g. for improving compatibility between host and storage device
• CPC Class Codes: G06F 3/0619 in relation to data integrity, e.g. data losses, bit errors
• CPC Class Codes: G06F 3/065 Replication mechanisms
• CPC Class Codes: G06F 3/0665 at area level, e.g. provisioning of virtual or logical volumes
• CPC Class Codes: G06F 3/067 Distributed or networked storage systems, e.g. storage area networks [SAN], network attached storage [NAS]
• CPC Class Codes: G06F 9/45558 Hypervisor-specific management and integration aspects

Abstract

One or more techniques and/or systems are provided for managing configuration updates used to replicate configuration of a primary storage virtual machine to a partner storage virtual machine. For example, the partner storage virtual machine may be configured to provide failover operation in place of the primary storage virtual machine in the event the primary storage virtual machine fails. Configuration updates are queued and replayed on the partner storage virtual machine to replicate objects of the primary storage virtual machine to the partner storage virtual machine (e.g., replay of create, modify, or delete object commands for synchronizing volumes, logical unit numbers, and/or other configuration objects of the primary storage virtual machine to the partner storage virtual machine). Configuration updates may be retained, modified, or discarded/removed based upon consolidation rules, which improves computing resource utilization by consolidating configuration updates and/or removing stale configuration updates while achieving a similar replication consistency result.

Claims

1. A method comprising:

evaluating, by a computing device, a plurality of queues to determine when one of the queues comprises a queued configuration update for an object to which a received configuration update is to be applied, wherein the queues are evaluated based on a queue evaluation order comprising a create queue, a modify queue, and then a delete queue;

determining, by the computing device, a first command type of the received configuration update and a second command type of the queued configuration update when the one of the queues comprises the queued configuration update for the object to which the received configuration update is to be applied; and

applying, by the computing device, a consolidation rule, corresponding to the first command type and the second command type, to the received configuration update and the queued configuration update.

2. The method of claim 1, wherein the first command type comprises a create object command, the second command type comprises a modify object command, and the consolidation rule specifies that the queued configuration update is to be modified based upon an attribute of the received configuration update to create a modified configuration update.

3. The method of claim 1, wherein the first command type comprises a create object command, the second command type comprises a delete object command, and the consolidation rule specifies that the queued configuration update is to be removed from the one of the queues and that the received configuration update is to be discarded.

4. The method of claim 1, wherein the first command type comprises a modify object command, the second command type comprises a delete object command, and the consolidation rule specifies that the queued configuration update is to be removed from the one of the queues and that the received configuration update is to be queued.

5. The method of claim 2, further comprising executing, by the computing device, the modified configuration update as a single command in order to implement the received configuration update and the queued configuration update.

6. The method of claim 1, comprising determining that a second object depends upon the object based dependencies between objects, applying, by the computing device, a first queued configuration update for the object before applying a second queued configuration update for the second object.

7. The method of claim 6, further comprising sorting, by the computing device, additional configuration updates within each of the queues based upon the dependency list.

8. A non-transitory machine readable medium comprising instructions for managing configuration updates comprising machine executable code which when executed by at least one machine causes the machine to:

evaluate a plurality of queues to determine when one of the queues comprises a queued configuration update for an object to which a received configuration update is to be applied, wherein the queues are evaluated based on a queue evaluation order comprising a create queue, a modify queue, and then a delete queue;

determine a first command type of the received configuration update and a second command type of the queued configuration update when the one of the queues comprises the queued configuration update for the object to which the received configuration update is to be applied; and

apply a consolidation rule, corresponding to the first command type and the second command type, to the received configuration update and the queued configuration update.

10. The medium as set forth in claim 8, wherein the first command type comprises a create object command, the second command type comprises a modify object command, and the consolidation rule specifies that the queued configuration update is to be modified based upon an attribute of the received configuration update to create a modified configuration update.

11. The medium as set forth in claim 10, wherein the machine executable code, when executed by the machine, further causes the machine to execute the modified configuration update as a single command in order to implement the received configuration update and the queued configuration update.

12. The medium as set forth in claim 8, wherein the machine executable code, when executed by the machine, further causes the machine to, responsive to determining that a second object depends upon the object based on dependencies between objects, apply a first queued configuration update for the object before applying a second queued configuration update for the second object.

13. The medium as set forth in claim 12, wherein the machine executable code, when executed by the machine, further causes the machine to sort additional configuration updates within each of the queues based upon the dependency list.

9. A computing device, comprising:

a memory containing machine readable medium comprising machine executable code having stored thereon instructions for managing configuration updates; and

a processor coupled to the memory and configured to execute the machine executable code to cause the processor to;

evaluate a plurality of queues to determine when one of the queues comprises a queued configuration update for an object to which a received configuration update is to be applied, wherein the queues are evaluated based on a queue evaluation order comprising a create queue, a modify queue, and then a delete queue;

determine a first command type of the received configuration update and a second command type of the queued configuration update when the one of the queues comprises the queued configuration update for the object to which the received configuration update is to be applied; and

apply a consolidation rule, corresponding to the first command type and the second command type, to the received configuration update and the queued configuration update.

14. The computing device as set forth in claim 9, wherein the first command type comprises a create object command, the second command type comprises a modify object command, and the consolidation rule specifies that the queued configuration update is to be modified based upon an attribute of the received configuration update to create a modified configuration update.

15. The computing device as set forth in claim 14, wherein the processor is further configured to execute the machine executable code to further cause the processor to execute the modified configuration update as a single command in order to implement the received configuration update and the queued configuration update.

16. The computing device as set forth in claim 9, wherein the processor is further configured to execute the machine executable code to further cause the processor to, responsive to determining that a second object depends upon the object based on dependencies between objects, apply a first queued configuration update for the object before applying a second queued configuration update for the second object.

17. The computing device as set forth in claim 16, wherein the processor is further configured to execute the machine executable code to further cause the processor to sort additional configuration updates within each of the queues based upon the dependency list.