[IOTDB-3433] [metric] add cluster info metrics

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Labels: pull-request-available
• Sprint: 2022-6-Cluster
• Assignee: Hongyin Zhang
• Reporter: Hongyin Zhang
• Due: 19/Jun/22
• Created: 09/Jun/22 01:16
• Updated: 20/Jun/22 15:28
• Resolved: 17/Jun/22 01:12

Description

Add cluster info metrics, mainly about region, slot in region and device in slot.

Issue Links

• links to: GitHub Pull Request #6291