CONFIGURATION SHARING AND VALIDATION FOR NODES IN A GRID NETWORK

• US 20200136900A1
• Filed: 10/30/2018
• Published: 04/30/2020
• Est. Priority Date: 10/30/2018
• Status: Active Grant

• Current Assignee: Red Hat, Inc. (International Business Machines Corporation)
• Original Assignee: Red Hat, Inc. (International Business Machines Corporation)
• Inventors: Tarrant, Tristan
• Granted Patent: US 11,509,531 B2
• Time in Patent Office: Days
• CPC Class Codes: G06F 16/215 Improving data quality; Data cleansing, e.g. de-duplication, removing invalid entries or correcting typographical errors
• CPC Class Codes: G06F 9/44505 Configuring for program initiating, e.g. using registry, configuration files
• CPC Class Codes: H04L 41/0813 characterised by the conditions triggering a change of settings
• CPC Class Codes: H04L 41/084 Configuration by using pre-existing information, e.g. using templates or copying from other elements
• CPC Class Codes: H04L 41/0893 Assignment of logical groups to network elements

Abstract

A command and response messaging mechanism for use between nodes of a homogeneous data grid can allow a configuration state to be quickly provisioned to the nodes of a cluster at run time for an application running on the data grid. For example, a processing device of a node can receive a global configuration state from a peer node in the grid network. The processing device can apply common values for symmetrical attributes from the global configuration state to a local configuration. The processing device can also apply individual node values for asymmetrical attributes from the global configuration state to the local configuration. The processing device can then run the application on the local node using the local configuration.

Claims

1. A node usable in a grid network, the node comprising:

a processing device; and

a memory device including instructions that are executable by the processing device for causing the processing device to perform operations comprising;

receiving a global configuration state from a peer node in the grid network, the global configuration state defining a collective state in which a cluster of nodes are to be provisioned in the grid network for running an application;

applying common values for symmetrical attributes of the global configuration state to a local configuration, a common value being a value that is common among the cluster of nodes in the grid network;

applying individual node values for asymmetrical attributes of the global configuration state to the local configuration, an individual node value being a value that is specific to the node in the grid network; and

running the application using the local configuration.

2. The node of claim 1 wherein the operations further comprises:

leaving the cluster of nodes;

comparing a persistent copy of the local configuration to the global configuration state; and

rejoining the cluster of nodes when values for the symmetrical attributes in the local configuration and the global configuration state are equal.

3. The node of claim 2 wherein the operations further comprises entering fail-fast mode when any of the values for the symmetrical attributes in the local configuration and the global configuration state are different.

4. The node of claim 1 wherein applying common values for symmetrical attributes comprises copying the common values into a local configuration file and wherein applying individual node values for asymmetrical attributes comprises copying the individual node values into the local configuration file.

5. The node of claim 4 wherein the global configuration state is requested from the peer node via a join request and wherein the global configuration state is received in a join command sent in response to the join request.

6. The node of claim 1 wherein the operations further include maintaining, in the memory device, the symmetrical attributes within at least a portion of a clustered cache, the symmetrical attributes including at least one of persistence, eviction, or expiration.

7. The node of claim 1 wherein the operations further comprise forwarding the global configuration state to at least one other node in the cluster of nodes.

8. The node of claim 7 further comprising:

an input/output (I/O) module connected to the processing device;

the peer node in communication with the node via the I/O module; and

the at least one other node in communication with the node via the I/O module.

9. A method comprising:

receiving, by a processing device, a global configuration state from a peer node in the grid network, the global configuration state defining a collective state in which a cluster of nodes are to be provisioned in the grid network for running an application;

applying, by the processing device, common values for symmetrical attributes of the global configuration state to a local configuration, a common value being a value that is common among the cluster of nodes in the grid network;

applying, by the processing device, individual node values for asymmetrical attributes of the global configuration state to the local configuration, an individual node value being a value that is specific to the node in the grid network; and

running the application using the processing device using the local configuration.

10. The method of claim 9 further comprising forwarding the global configuration state to at least one other node in the cluster of nodes.

11. The method of claim 9 further comprising:

leaving the cluster of nodes;

comparing a persistent copy of the local configuration to the global configuration state; and

rejoining the cluster of nodes when values for the symmetrical attributes in the local configuration and the global configuration state are equal.

12. The method of claim 9 wherein applying common values for symmetrical attributes comprises copying the common values into a local configuration file and wherein applying individual node values for asymmetrical attributes comprises copying the individual node values into the local configuration file.

13. The method of claim 12 wherein the global configuration state is requested from the peer node via a join request and wherein the global configuration state is received in a join command sent in response to the join request.

14. The method of claim 9 further comprising maintaining, in the memory device, the symmetrical attributes within at least a portion of a clustered cache, the symmetrical attributes including at least one of persistence, eviction, or expiration.

15. A non-transitory computer-readable medium comprising program code that is executable by a processing device for causing the processing device to:

receive a global configuration state from a peer node in the grid network, the global configuration state defining a collective state in which a cluster of nodes are to be provisioned in the grid network for running an application;

apply common values for symmetrical attributes of the global configuration state to a local configuration, a common value being a value that is common among the cluster of nodes in the grid network;

apply individual node values for asymmetrical attributes of the global configuration state to the local configuration, an individual node value being a value that is specific to the node in the grid network; and

run the application using the local configuration.

16. The non-transitory computer-readable medium of claim 15 wherein the computer program code causes the processing device to:

leave the cluster of nodes;

compare a persistent copy of the local configuration to the global configuration state;

rejoin the cluster of nodes when values for the symmetrical attributes in the local configuration and the global configuration state are equal; and

enter fail-fast mode when any of the values for the symmetrical attributes in the local configuration and the global configuration state are different.

17. The non-transitory computer-readable medium of claim 15 wherein applying common values for symmetrical attributes comprises copying the common values into a local configuration file and wherein applying individual node values for asymmetrical attributes comprises copying the individual node values into the local configuration file.

18. The non-transitory computer-readable medium of claim 17 wherein the global configuration state is requested from the peer node via a join request and wherein the global configuration state is received in a join command sent in response to the join request.

19. The non-transitory computer-readable medium of claim 15 wherein the computer program code causes the processing device to maintain, in the memory device, the symmetrical attributes within at least a portion of a clustered cache, the symmetrical attributes including at least one of persistence, eviction, or expiration.

20. The non-transitory computer-readable medium of claim 15 wherein the computer program code causes the processing device to forward the global configuration state to at least one other node in the cluster of nodes.