[HBASE-20506] Add doc and test for unused RetryCounter, useful-looking utility

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 3.0.0-alpha-1, 2.1.0, 2.0.3
• Assignee: Michael Stack
• Reporter: Michael Stack
• Created: 28/Apr/18 23:14
• Updated: 05/Oct/18 05:20
• Resolved: 01/May/18 14:02

Description

I thought I could use RetryCounter, old facility added years ago, for doing backoff calculations. In the end, it didn't work for me because it is lacking pb serialization. While trying to use it, I added a bit of doc and a test. Might help the next dev that trips along this way.

Issue Links

• links to: Review Board (master)