[HDDS-5923] Add DBHandle abstraction over ReferenceCountedDB.

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.3.0
• Labels: pull-request-available
• Assignee: Mark Gui
• Reporter: Mark Gui
• Created: 03/Nov/21 07:45
• Updated: 02/Mar/22 10:31
• Resolved: 02/Mar/22 10:31

Description

For now the dbhandle for rocksdb instance is referenced counted, after merge rocksdb instances, the dbhandles will be pinned in memory until datanode stops.

So we introduce an abstract class DBHandle and it will have 2 sub classes:

• ReferenceCountedDB
• RawDB

Issue Links

• links to: GitHub Pull Request #2794