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https://issues.apache.org/jira/browse/FLINK-6830?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16036119#comment-16036119
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ASF GitHub Bot commented on FLINK-6830:
---------------------------------------

Github user tzulitai commented on the issue:

    https://github.com/apache/flink/pull/4059
  
    f228081 is for porting the topology change on restore migration tests.
    
    The rest 233c617 to e619b98 is for ports of each individual migration test 
with the pattern `*From12MigrationTest`. They're also refactored to deduplicate 
code across 1.1, 1.2, 1.3 migration tests.
    
    Note that for the CEP migration tests in 233c617, some tests for migration 
from 1.3 is currently ignored because they do not pass. May have bumped into a 
bug for the CEP library that does not allow it to restore from 1.3.x to 1.3.x 😅


> Add ITTests for savepoint migration from 1.3
> --------------------------------------------
>
>                 Key: FLINK-6830
>                 URL: https://issues.apache.org/jira/browse/FLINK-6830
>             Project: Flink
>          Issue Type: Test
>          Components: State Backends, Checkpointing
>    Affects Versions: 1.3.0
>            Reporter: Tzu-Li (Gordon) Tai
>            Assignee: Tzu-Li (Gordon) Tai
>             Fix For: 1.3.1
>
>
> Already with FLINK-6763 and FLINK-6764 we'll need to change the serialization 
> formats between 1.3.0 and 1.3.x.
> We probably should add the stateful job migration ITCases for restoring from 
> Flink 1.3.x now.



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