[RATIS-1408] Add metrics of statemachine read/write timeout count

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.3.0
• Component/s: metrics
• Assignee: Sammi Chen
• Reporter: Sammi Chen
• Created: 26/Sep/21 07:08
• Updated: 02/Nov/23 17:13
• Resolved: 10/Dec/21 09:50

Description

Statemachine read timeout is the key contributor to the slow follwer.

This task aims to add timeout count for both read/write statemachine, as one of read/write performance indicators.

Issue Links

• is duplicated by: RATIS-1096 Add a metric for writeStateMachine and readStateMachine timeouts
• links to: GitHub Pull Request #506