Yu Li created FLINK-12697:
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Summary: Support on-disk state storage for HeapKeyedStateBackend
Key: FLINK-12697
URL: https://issues.apache.org/jira/browse/FLINK-12697
Project: Flink
Issue Type: Sub-task
Components: Runtime / State Backends
Reporter: Yu Li
Assignee: Yu Li
We need to store state on disk after spilling, and to support this, we need:
1. A data structure to efficiently support copy-on-write for asynchronous
snapshot
2. An allocator to allocate and manage chunks from the memory mapped file(s)
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