[HBASE-12648] Document per cell TTLs

• Type: Sub-task
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 2.0.0
• Component/s: documentation
• Hadoop Flags: Reviewed
• Assignee: Andrew Kyle Purtell
• Reporter: Andrew Kyle Purtell
• Created: 06/Dec/14 02:25
• Updated: 17/Jun/22 17:02
• Resolved: 12/Dec/14 03:41

Description

Add documentation about the new per cell TTL feature. Works like CF level TTLs except:

• Unit is milliseconds instead of seconds. Rationale on JIRA.
• Cell TTLs can't extend the life of a cell beyond the CF level setting.