[YARN-2765] Add leveldb-based implementation for RMStateStore

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.7.0
• Component/s: resourcemanager
• Target Version/s: 2.7.0
• Hadoop Flags: Reviewed
• Assignee: Jason Darrell Lowe
• Reporter: Jason Darrell Lowe
• Created: 29/Oct/14 01:42
• Updated: 10/Apr/15 20:09
• Resolved: 02/Dec/14 00:46

Description

It would be nice to have a leveldb option to the resourcemanager recovery store. Leveldb would provide some benefits over the existing filesystem store such as better support for atomic operations, fewer I/O ops per state update, and far fewer total files on the filesystem.