Roman Khachatryan created FLINK-23344:
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Summary: State ownership: track and discard private state (rocks,
heap)
Key: FLINK-23344
URL: https://issues.apache.org/jira/browse/FLINK-23344
Project: Flink
Issue Type: Sub-task
Components: Runtime / State Backends
Reporter: Roman Khachatryan
Fix For: 1.14.0
(materialized and non-materialized, only changelog backend)
TM should own changelog backend state to prevent re-uploading state on
checkpoint abortion (or missing confirmation). A simpler solution to only own
aborted state is less maintanable in the long run.
For that, on TM state should be tracked and discarded (on
subsumption+materialization; on shutdown). Both materialized and
non-materialized.
See [state ownership design
doc|https://docs.google.com/document/d/1NJJQ30P27BmUvD7oa4FChvkYxMEgjRPTVdO1dHLl_9I/edit?usp=sharing],
in particular [Tracking private
state|https://docs.google.com/document/d/1NJJQ30P27BmUvD7oa4FChvkYxMEgjRPTVdO1dHLl_9I/edit#heading=h.osle3oyzw0bx].
Rescaling not supported until shared state management implemented.
Externalized checkpoints and savepoints should be supported (or please create a
separate ticket).
Retained checkpoints is a separated ticket: FLINK-23251
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