ajkh88 opened a new pull request, #7611:
URL: https://github.com/apache/hbase/pull/7611

   **This code was already merged to master - this PR is to merge the 
functionality into branch-2.**
   Original PR: https://github.com/apache/hbase/pull/7563
   
   Adds Admin APIs to modify tables without immediately reopening all regions 
and to selectively reopen regions in-place. This enables gradual rollout of 
table descriptor changes without triggering RIT storms on large tables.
   
   Useful for safely deploying configuration changes - modify with 
reopenRegions=false, canary test on a few regions with 
reopenTableRegions(tableName, regions), then roll out to the entire table with 
reopenTableRegions(tableName).
   
   


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