SYNCHRONOUS DATA REPLICATION IN A CONTENT MANAGEMENT SYSTEM

• US 20150213102A1
• Filed: 01/27/2014
• Published: 07/30/2015
• Est. Priority Date: 01/27/2014
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Chen, Ning, Ho, Mang-Rong, Kozina, Gerald E., Li, Yong L., Shah, Mayank V., Yaung, Alan T., Madani, Masoud, Silva, George F., Zientara, John T.
• Granted Patent: US 10,169,440 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 16/275 Synchronous replication

Abstract

Methods and apparatus, including computer program products, implementing and using techniques for data replication in a cluster. In response to identifying data to replicate in a multi-node system by a first node in a cluster, the data is written concurrently to other nodes in the cluster based on a rule set in a repository. In response to detecting a criterion described in the rule set, an action is performed.

Claims

1-8. -8. (canceled)

9. A computer program product for data replication in a cluster, the computer program product comprising a computer readable storage medium having program code embodied therewith, the program code being executable by a processor to:

in response to identifying data to replicate in a multi-node system by a first node in a cluster, write, by the processor, the data concurrently to other nodes in the cluster based on a rule set in a repository; and

in response to detecting a criterion described in the rule set, perform an action by the processor.

10. The computer program product of claim 9, wherein the rule set identifies handling options selected from a group consisting of persistence, tolerance and failover.

11. The computer program product of claim 9, wherein the criterion is selected from a group consisting of:

identified nodes, success, ratio of successful persistent confirmation to fails, all nodes, and failover acknowledgement.

12. The computer program product of claim 9, wherein the action is selected from a group consisting of:

success, failure, and roll back.

13. The computer program product of claim 9, wherein the multi-node system is a content management system.

14. The computer program product of claim 9, further comprising program code executable by the processor to:

provide an application programming interface for replicating data.

15. The computer program product of claim 9, wherein the criterion is a failure to replicate data to one or more nodes and the action is replicating the data to the failed nodes asynchronously at a later point in time.

16. The computer program product of claim 10, wherein the rule set includes a tolerant mode and a strict mode for data replication, wherein the tolerant mode recognizes data replication as success by the data node or one of its replica nodes in response to meeting a user-assigned quorum, and wherein the strict mode requires that the data be persisted to the data node and all replica nodes before recognizing data replication as success.

17. A system for data replication in a cluster, comprising:

a processor; and

a memory storing instructions that when executed by the processor, cause the processor to perform the following operations;

in response to identifying data to replicate in a multi-node system by a first node in a cluster, writing the data concurrently to other nodes in the cluster based on a rule set in a repository; and

in response to detecting a criterion described in the rule set, performing an action.

18. The system of claim 17, wherein the multi-node system is a content management system.

19. The system of claim 17, further comprising:

an application programming interface for replicating data.

20. The system of claim 17, wherein the criterion is a failure to replicate data to one or more nodes and the action is replicating the data to the failed nodes asynchronously at a later point in time.