[HBASE-15583] Any HTableDescriptor we give out should be immutable

• Type: Sub-task
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.0.0
• Fix Version/s: 2.0.0

Release Note

# The HTD got from Admin, AsyncAdmin, and Table is immutable.
# DEFERRED_LOG_FLUSH is removed.
# cleanup the deprecated construction of HTD

• Assignee: Chia-Ping Tsai
• Reporter: Gabor Liptak
• Created: 01/Apr/16 21:53
• Updated: 06/Jun/20 08:08
• Resolved: 26/Apr/17 19:31

Description

From enis in https://issues.apache.org/jira/browse/HBASE-15505:

PS Should UnmodifyableHTableDescriptor be renamed to UnmodifiableHTableDescriptor?

It should be named ImmutableHTableDescriptor to be consistent with collections naming. Let's do this as a subtask of the parent jira, not here. Thinking about it though, why would we return an Immutable HTD in HTable.getTableDescriptor() versus a mutable HTD in Admin.getTableDescriptor(). It does not make sense. Should we just get rid of the Immutable ones?
We also have UnmodifyableHRegionInfo which is not used at the moment it seems.

Issue Links

• relates to: HBASE-24507 Remove HTableDescriptor and HColumnDescriptor
• links to: RB