[jira] [Created] (FLINK-31765) Disable changelog backend for the StatefulJobSavepointMigrationITCase and StatefulJobWBroadcastStateMigrationITCase with RocksDB and checkpoints

["Matthias Pohl (Jira)" <ji...@apache.org>]

Matthias Pohl created FLINK-31765:
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             Summary: Disable changelog backend for the StatefulJobSavepointMigrationITCase and StatefulJobWBroadcastStateMigrationITCase with RocksDB and checkpoints
                 Key: FLINK-31765
                 URL: https://issues.apache.org/jira/browse/FLINK-31765
             Project: Flink
          Issue Type: Bug
          Components: Runtime / Coordination, Tests
    Affects Versions: 1.17.0, 1.18.0
            Reporter: Matthias Pohl


In FLINK-31593 we discovered an instability when generating the migration test data for 1.17 for {{StatefulJobSavepointMigrationITCase}} and {{StatefulJobWBroadcastStateMigrationITCase}}. According to the discussion in FLINK-31593, we concluded that it's caused by a non-determinism that's happening in the changelog backend code. As a workaround, we're going to disable the changelog backend in these tests for now.

We're not touching 1.16 because it didn't appear in that branch. The non-determinism seems to kick in only when generating the checkpoint files. 

For 1.17, we're gonna create a backport for consistency reasons because we have to enable it for the data generation.



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