huzheng created HBASE-17472:
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Summary: Correct the semantic of permission grant
Key: HBASE-17472
URL: https://issues.apache.org/jira/browse/HBASE-17472
Project: HBase
Issue Type: Improvement
Components: Admin
Reporter: huzheng
Assignee: huzheng
Currently, HBase grant operation has following semantic:
{code}
hbase(main):019:0> grant 'hbase_tst', 'RW', 'ycsb'
0 row(s) in 0.0960 seconds
hbase(main):020:0> user_permission 'ycsb'
User
Namespace,Table,Family,Qualifier:Permission
hbase_tst default,ycsb,,:
[Permission:actions=READ,WRITE]
4 row(s) in 0.0550 seconds
hbase(main):021:0> grant 'hbase_tst', 'CA', 'ycsb'
0 row(s) in 0.0820 seconds
hbase(main):022:0> user_permission 'ycsb'
User
Namespace,Table,Family,Qualifier:Permission
hbase_tst default,ycsb,,:
[Permission: actions=CREATE,ADMIN]
1 row(s) in 0.0490 seconds
{code}
Later permission will replace previous granted permissions seems confuse most
of HBase administrator.
It's seems more reasonable that HBase merge multiple granted permission.
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