I have created a HBase Coprocessor which listens to a table (say TableA). Both Coprocessor setting with HBase and actual TableA creation was done by same user (say UserA). I have a spark job (again run by UserA) which adds data into the TableA. When HBase Coprocessor registers this added data, it starts and fails with the error:
Insufficient permissions for user 'UserA' (global, action=ADMIN)
Also, this causes the HBase Region Servers to go down. We have to manually restart these servers again to resume operations on HBase.
Adding the UserA as a HBase ADMIN fixed the issue for now, but its not exactly a good practice.
Functionally, am I missing something with respect to the access controls on the coprocessors or HBase?