[FLINK-21650] On heap state restore, skip key groups from other state backends

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.13.0
• Component/s: Runtime / State Backends
• Labels: pull-request-available
• Assignee: Roman Khachatryan
• Reporter: Roman Khachatryan
• Created: 07/Mar/21 19:28
• Updated: 21/Mar/21 19:56
• Resolved: 21/Mar/21 19:56

Description

In new incremental mode, heap backend wraps KeyGroupsStateHandle
into IncrementalRemoteKeyedStateHandle. The latter don't compute
intersection because it is not directly aware of the offsets. So it just
returns a full keyrange if there is SOME intersection.
On recovery, unused keyGroups are filtered out by RocksDB state backend.
With this change, Heap state backend does the same.

Issue Links

• links to: GitHub Pull Request #15207