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https://issues.apache.org/jira/browse/FLINK-21352?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17457864#comment-17457864
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Yuan Mei commented on FLINK-21352:
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Hey, [~roman] let's finalize things in this umbrella ticket that complete the 
MVP (and get into 1.15), and maybe close/move out tickets as follow-ups for the 
1.15?

1. We can remove/close all the "state ownership" tickets, and I think the 
design should be related to FLIP 193 snapshot ownership as well. So we can 
recreate/reopen them when needed.
2. We can keep all the test tickets.
3. Benchmarks can be kept but as a best effort.

Codewise needs to get in
https://issues.apache.org/jira/browse/FLINK-24611 
Prevent JM discarding states when checkpoint abort is the only PR

Things are needed:
1. Support recovery (from checkpoints) after disabling the changelog backend 
(if we do not have this, this feature is not safe to use in production).

Things I am not sure to include or not:
1. State migration
If we can make sure Savepoint does not use changelog, I think we should be fine 
to leave it as it is. (I remember we have a randomization test that covered 
this right?)

2. Consider disallowing in-memory state handles for materialized state
3. Support more than one retained checkpoints



> FLIP-158: Generalized incremental checkpoints
> ---------------------------------------------
>
>                 Key: FLINK-21352
>                 URL: https://issues.apache.org/jira/browse/FLINK-21352
>             Project: Flink
>          Issue Type: New Feature
>          Components: Runtime / Checkpointing, Runtime / State Backends
>            Reporter: Roman Khachatryan
>            Assignee: Roman Khachatryan
>            Priority: Major
>             Fix For: 1.15.0
>
>
> Umbrella ticket for [FLIP-158: Generalized incremental 
> checkpoints|https://cwiki.apache.org/confluence/display/FLINK/FLIP-158%3A+Generalized+incremental+checkpoints]
>  



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