[HBASE-7237] system metadata for tables/cfs needs to be validated on the master

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Not A Problem
• Affects Version/s: 0.95.2
• Assignee: Unassigned
• Reporter: Sergey Shelukhin
• Created: 29/Nov/12 19:34
• Updated: 15/Jun/22 17:29
• Resolved: 15/Jun/22 17:29

Description

shell currently validates whatever metadata user provides as argument to alter, however while looking at some other issue I noticed that user and system metadata is stored in the same dictionary in the descriptor, so shell validation is easy to bypass by setting a "user" metadata parameter with the same name as the system parameter.
E.g. I just set MAX_FILESIZE to "moo" via CONFIG.
This can be fixed in the shell, however the general problem I think is that system configuration should be validated server-side (e.g. on the master), not just on the client.