[HBASE-24950] Another solution for Splittable Meta - ASF JIRA

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For implementing splittable meta with a master local region to store the 'root table'.

is related to

HBASE-11288 Splittable Meta

relates to

HBASE-24753 HA masters based on raft

HBASE-24943 Cleanup unnecessary usages of MetaTableAccessor

links to

Design Doc

1.	Make sure we can rollingupgrade from a non-splittable meta to splittable meta	Open	Unassigned
2.	Remove RegionInfoBuilder.FIRST_META_REGIONINFO	Resolved	Duo Zhang
3.	Implement meta merge	Resolved	Duo Zhang
4.	Introduce a CatalogAccessor	Resolved	Unassigned
5.	Store the locations of meta regions in master local store	Resolved	Duo Zhang
6.	Implement meta split	Resolved	Duo Zhang
7.	Implement CatalogJanitor for 'root table'	Resolved	Duo Zhang
8.	Move the locateMeta logic from AsyncMetaRegionTableLocator to ConnectionRegistry	Resolved	Duo Zhang
9.	Introduce new master rpc methods to locate meta region through root region	Resolved	Duo Zhang
10.	Introduce a special CellComparator for master local region	Resolved	Duo Zhang
11.	Make HBCK2 work for 'root table'	In Progress	Duo Zhang
12.	Avoid reset the backup master root cache every time when syncing	Resolved	Duo Zhang
13.	Attach a design doc to code base	Open	Unassigned
14.	Fan out the edits to root to backup masters	In Progress	Duo Zhang
15.	Mark all meta znode related methods as deprecated	Open	Duo Zhang