[IOTDB-2638] [Metric] Add Some feature into metric module.

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Component/s: Core/Server
• Labels: pull-request-available
• Sprint: 2022-2-Tan
• Assignee: Hongyin Zhang
• Reporter: Hongyin Zhang
• Created: 01/Mar/22 07:21
• Updated: 05/Mar/22 04:35
• Resolved: 04/Mar/22 01:14

Description

1. Add metric level into metric framework: core, important, normal, all.
2. Remove the usage of pushgateway of dropwizard framework.
3. Fix docs of metric module.

Issue Links

• links to: GitHub Pull Request #5147