[HDDS-10597] Use MutableGauge for threshold based SafeModeMetrics

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.5.0
• Component/s: SCM
• Labels: pull-request-available
• Assignee: Sadanand Shenoy
• Reporter: Sadanand Shenoy
• Created: 27/Mar/24 07:24
• Updated: 02/Apr/24 08:06
• Resolved: 02/Apr/24 08:06

Description

Right now, we use MutableCounterLong for threshold metrics like 
numContainerWithOneReplicaReportedThreshold and when it is updated in setNumContainerWithOneReplicaReportedThreshold(long val) it incremented instead of setting the accurate value. This makes no sense as this field is a threshold and shouldn't be used as a counter.
The metrics show cumulative addition of these threshold values which makes no sense 

Issue Links

• links to: GitHub Pull Request #6446