[HBASE-16256] Purpose of EnvironmentEdge, EnvironmentEdgeManager

• Type: Improvement
• Status: Resolved
• Priority: Trivial
• Resolution: Fixed
• Fix Version/s: 1.3.0, 1.1.6, 1.2.3, 2.0.0
• Component/s: documentation, regionserver
• Labels: beginner clarification
• Hadoop Flags: Reviewed
• Assignee: Sai Teja Ranuva
• Reporter: Sai Teja Ranuva
• Created: 20/Jul/16 02:59
• Updated: 04/Aug/16 04:26
• Resolved: 29/Jul/16 23:37

Description

I am trying to figure out the purpose of EnvironmentEdge in the HBase code.
The java doc says it has something to do with environment, I feel it is vague. It looks like there is a bigger picture for such a design. Currently only concrete method that is available in it is currentTime().

Can anyone summarize the rationale behind having EnvironmentEdge/EnvironmentEdgeManager ?