[HBASE-25761] POC: hbase:meta,,1 as ROOT

• Type: Sub-task
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Assignee: Francis Christopher Liu
• Reporter: Michael Stack
• Created: 10/Apr/21 16:19
• Updated: 07/Jul/21 17:03

Description

One of the proposals up in the split-meta design doc suggests a sleight-of-hand where the current hard-coded hbase:meta,,1 Region is leveraged to serve as first Region of a split hbase:meta but also does double-duty as 'ROOT'. This suggestion was put aside as a complicating recursion in chat but then Francis noticed on a re-read of the BigTable paper, that this is how they describe they do 'ROOT': "The root tablet is just the first tablet in the METADATA table, but is treated specially – it is never split..."

This issue is for playing around with this notion to see what the problems are so can do a better description of this approach here, in the design:

https://docs.google.com/document/d/11ChsSb2LGrSzrSJz8pDCAw5IewmaMV0ZDN1LrMkAj4s/edit?ts=606c120f#heading=h.ikbhxlcthjle

Issue Links

• links to: First Meta Region Design