HBASE-30160: Prevent region creation if the encoded region names are …

[hingu-8103]

…the same

AI Usage

Used github copilot to implement the changes and then hand reviewed all the changes.

Testing

1. Reproduced the error for CreateTableProcedure and SplitTableRegionProcedure as mentioned in the ticket.
2. Applied the fix.
3. Tested the same scenario manually for CreateTableProcedure and SplitTableRegionProcedure.
4. Got the DoNotRetryException instead of hanging procedure for long time.
   ex.

key1 = [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,94,66,185,153,219,183,152,87,250,161,224,241,188,9,104,93,49,83,91,38,117,42,147,161,38,82,122,70,135,158,151,48,132,229,185,227,108,110,42,108,7,12,239,3,150,81,189,67,33,177,222,99,45,251,43,17,131,104,193,190,36,31,174,149,175,211,87,7,138,1,250,241,186,131,140,125,165,65,49,131,174,174,248,230,249,229,70,167,201,26,254,77,236,7,222,109,14,109,158,151,244,22,8,148,168,138,56,55,7,181,118,172,231,7,16,34,252,185,31,109,189,19,86,169,237,88,240,177].pack("C*")
key2 = [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,94,66,185,153,219,183,152,87,250,161,224,241,188,9,104,93,49,83,91,166,117,42,147,161,38,82,122,70,135,158,151,48,132,229,185,227,108,110,42,108,7,12,239,3,150,209,188,67,33,177,222,99,45,251,43,17,131,104,193,62,36,31,174,149,175,211,87,7,138,1,250,241,186,131,140,125,165,65,49,131,174,174,248,102,249,229,70,167,201,26,254,77,236,7,222,109,14,109,158,151,244,22,8,148,168,138,56,55,7,53,119,172,231,7,16,34,252,185,31,109,189,19,86,41,237,88,240,177].pack("C*")

hbase:037:0> create 'table1','f',SPLITS => [key1, key2]

ERROR: org.apache.hadoop.hbase.DoNotRetryIOException: Encoded region name collision detected: '495efdcd24c0fa172bef0c39ec4c9ab4' for table table1. Refusing to proceed.
	at org.apache.hadoop.hbase.util.ModifyRegionUtils.checkForEncodedNameCollisions(ModifyRegionUtils.java:110)
	at org.apache.hadoop.hbase.master.procedure.CreateTableProcedure.prepareCreate(CreateTableProcedure.java:297)
	at org.apache.hadoop.hbase.master.procedure.CreateTableProcedure.executeFromState(CreateTableProcedure.java:95)
	at org.apache.hadoop.hbase.master.procedure.CreateTableProcedure.executeFromState(CreateTableProcedure.java:60)
	at org.apache.hadoop.hbase.procedure2.StateMachineProcedure.execute(StateMachineProcedure.java:188)
	at org.apache.hadoop.hbase.procedure2.Procedure.doExecute(Procedure.java:963)
	at org.apache.hadoop.hbase.procedure2.ProcedureExecutor.execProcedure(ProcedureExecutor.java:1785)
	at org.apache.hadoop.hbase.procedure2.ProcedureExecutor.executeProcedure(ProcedureExecutor.java:1462)
	at org.apache.hadoop.hbase.procedure2.ProcedureExecutor$WorkerThread.runProcedure(ProcedureExecutor.java:2110)
	at org.apache.hadoop.hbase.trace.TraceUtil.trace(TraceUtil.java:216)
	at org.apache.hadoop.hbase.procedure2.ProcedureExecutor$WorkerThread.run(ProcedureExecutor.java:2137)

For usage try 'help "create"'

Took 0.5583 seconds