[FLINK-5043] Converting keyed state from Flink 1.1 backend implementations to their new counterparts in 1.2

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Implemented
• Affects Version/s: 1.2.0
• Fix Version/s: 1.2.0
• Component/s: Runtime / State Backends
• Assignee: Stefan Richter
• Reporter: Stefan Richter
• Created: 09/Nov/16 20:04
• Updated: 07/Dec/16 13:07
• Resolved: 07/Dec/16 13:07

Description

Keyed state backends became keygroup aware in Flink 1.2 and their hierarchy as a whole changed significantly. We need to implement a conversion so that old snapshots can be restored into new backends.