[KUDU-77] Add utility code for throttled logging

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: M4
• Fix Version/s: 0.7.0
• Component/s: supportability, util
• Target Version/s: Backlog
• Assignee: Unassigned
• Reporter: Todd Lipcon
• Created: 02/Jan/14 14:01
• Updated: 06/Mar/17 20:47
• Resolved: 06/Mar/17 20:47

Description

We have a few places where we'd probably want to log, but are afraid of potential log spew situations. For example, when RPC queues overflow, adding a log message on every RPC may be too expensive. We should add a throttled logger utility that will consolidate repeated messages and be constrained to actually outputting once every second.