[HBASE-7807] Introduce HRegionFileSystem and move region fs related code

• Type: Sub-task
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.95.2
• Fix Version/s: 0.98.0, 0.95.0
• Component/s: regionserver
• Assignee: Matteo Bertozzi
• Reporter: Matteo Bertozzi
• Created: 10/Feb/13 15:43
• Updated: 23/Sep/13 18:31
• Resolved: 28/Feb/13 09:08

Description

Add a new HRegionFileSystem class that allows to create an on-disk region without needs to instantiate an HRegion.
This is the first refactor step, the next step is moving file creation and retrival inside this class.

Issue Links

• is depended upon by: HBASE-7808 Refactor Store to use HRegionFileSystem
• is depended upon by: HBASE-7809 Refactor Split/Merge to use HRegionFileSystem
• is depended upon by: HBASE-7811 Cleanup code to use HRegionFileSystem, remove getDir and fs operations
• is related to: HBASE-8215 Removing existing .regioninfo in writeRegioninfoOnFilesystem