[HADOOP-12683] Add number of samples in last interval in snapshot of MutableStat

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.7.1
• Fix Version/s: 2.9.0, 3.0.0-alpha1
• Component/s: metrics
• Target Version/s: 2.9.0
• Hadoop Flags: Reviewed
• Assignee: Vikram Srivastava
• Reporter: Vikram Srivastava
• Created: 29/Dec/15 06:15
• Updated: 30/Aug/16 01:20
• Resolved: 13/Jan/16 23:46

Description

Besides the total number of samples, it is also useful to know the number of samples in the last snapshot of MutableStat.