Backport "HBASE-23561 Look up of Region in Master by encoded region name is O(n)" and addendum to branch-2#5049

Merged

ndimiduk merged 2 commits intoapache:branch-2from ndimiduk:23561-master-region-by-region-name-O-n-branch-2

Mar 1, 2023

+26-11

Commits on Feb 27, 2023

HBASE-23561 Look up of Region in Master by encoded region name is O(n) (apache#1193 )

mwkang
authored and
ndimiduk
committed
HBASE-23561 acquire lock before update regionsMap (apache#1263 )

mwkang
authored and
ndimiduk
committed