[IGNITE-12111] Cluster ID and tag: properties to identify the cluster

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.9
• Release Note: Added Cluster ID and tag properties to identify the cluster
• Ignite Flags: Docs Required
• Assignee: Sergey Chugunov
• Reporter: Sergey Chugunov
• Created: 27/Aug/19 14:56
• Updated: 25/Jun/20 12:28
• Resolved: 22/Jun/20 16:44

Description

To improve cluster management capabilities two new properties of the cluster are introduced:

1. A unique cluster ID (may be either a random UUID or random IgniteUUID). Generated upon cluster start and saved to the distributed metastorage. Immutable. Persistent clusters must persist the value. In-memory clusters should keep the generated ID in memory and regenerate it upon restart.
2. Human-readable cluster tag. Generated by default to some random (but still meaningful) string, may be changed by user. Again survives restart in persistent clusters and is regenerated in in-memory clusters on every restart.

Issue Links

• is related to: IGNITE-13185 API to change Cluster Tag and notify about change of Cluster Tag
• is related to: IGNITE-13182 Document Cluster ID and Tag feature
• links to: GitHub Pull Request #7922