Bug: enable_table_replication adding unnecessary entries for super user to ACL table
Status: Open | Priority: Minor | Resolution: 
Created: 15/Jul/20 05:25
Affects Version/s: 2.1.0

While enabling the table replication for the user table as an hbase user using the "enable_table_replication" command, permission has been granted automatically for the hbase user and getting listed in hbase:acl. The same behaviour is applicable to other users too.
Issue Replication Steps:
========================

hbase(main):001:0> whoami
dhana (auth:SIMPLE)
    groups: dhana
Took 0.0214 seconds                                                                                  
hbase(main):002:0> list
TABLE                                                                                                
0 row(s)
Took 0.4268 seconds                                                                                  
=> []
hbase(main):003:0> create 'mytab','f1'
Created table mytab
Took 0.7834 seconds                                                                                  
=> Hbase::Table - mytab
hbase(main):004:0> describe 'mytab'
Table mytab is ENABLED                                                                               
mytab                                                                                                
COLUMN FAMILIES DESCRIPTION                                                                          
\{NAME => 'f1', VERSIONS => '1', EVICT_BLOCKS_ON_CLOSE => 'false', NEW_VERSION_BEHAVIOR => 'false', KE
EP_DELETED_CELLS => 'FALSE', CACHE_DATA_ON_WRITE => 'false', DATA_BLOCK_ENCODING => 'NONE', TTL => 'F
OREVER', MIN_VERSIONS => '0', REPLICATION_SCOPE => '0', BLOOMFILTER => 'ROW', CACHE_INDEX_ON_WRITE =>
 'false', IN_MEMORY => 'false', CACHE_BLOOMS_ON_WRITE => 'false', PREFETCH_BLOCKS_ON_OPEN => 'false',
 COMPRESSION => 'NONE', BLOCKCACHE => 'true', BLOCKSIZE => '65536'}                                  
1 row(s)
Took 0.1319 seconds                                                                                  
hbase(main):005:0> scan 'hbase:acl'
ROW                        COLUMN+CELL                                                               
 hbase:acl                 column=l:dhana, timestamp=1593669605273, value=RWXCA                      
 mytab                     column=l:dhana, timestamp=1593673200269, value=RWXCA                      
2 row(s)
Took 0.0969 seconds                                                                                  
hbase(main):006:0> exit

hbase(main):001:0> whoami
hbase (auth:SIMPLE)
    groups: hbase
Took 0.0271 seconds                                                                                                                                                                                           
hbase(main):002:0> scan 'hbase:acl'
ROW                        COLUMN+CELL                                                               
 hbase:acl                 column=l:dhana, timestamp=1593669605273, value=RWXCA                      
 mytab                     column=l:dhana, timestamp=1593673200269, value=RWXCA                      
2 row(s)
Took 0.5223 seconds                                                                                  
hbase(main):003:0> enable_table_replication 'mytab'
The replication of table 'mytab' successfully enabled
Took 16.0711 seconds                                                                                 
hbase(main):004:0> scan 'hbase:acl'
ROW                        COLUMN+CELL                                                               
 hbase:acl                 column=l:dhana, timestamp=1593669605273, value=RWXCA                      
 mytab                     column=l:dhana, timestamp=1593673200269, value=RWXCA                      
 mytab                     column=l:hbase, timestamp=1593673390976, value=RWXCA         <========             
2 row(s)
Took 0.0089 seconds