[CASSANDRA-13234] Add histogram for delay to deliver hints

• Type: Improvement
• Status: Resolved
• Priority: Low
• Resolution: Fixed
• Fix Version/s: 4.0, 4.0-alpha1
• Component/s: Legacy/Observability
• Assignee: Jeff Jirsa
• Reporter: Jeff Jirsa

Authors

Jeff Jirsa

Reviewers

Stefan Podkowinski

• Created: 17/Feb/17 01:11
• Updated: 15/May/20 08:06
• Resolved: 29/Mar/17 00:38

Description

There is very little visibility into hint delivery in general - having histograms available to understand how long it takes to deliver hints is useful for operators to better identify problems.

Issue Links

• incorporates: CASSANDRA-15015 Cassandra metrics documentation is not correct for Hint_delays metric
• is duplicated by: CASSANDRA-13638 Add the JMX metrics about the total number of hints we have delivered per host