Matthias Pohl created FLINK-31766:
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Summary: Restoring from a retained checkpoint that was generated
with changelog backend enabled might fail due to missing files
Key: FLINK-31766
URL: https://issues.apache.org/jira/browse/FLINK-31766
Project: Flink
Issue Type: Bug
Components: Runtime / Coordination
Affects Versions: 1.16.1, 1.17.0, 1.18.0
Reporter: Matthias Pohl
in FLINK-31593 we discovered a instability when generating the test data for
{{StatefulJobSavepointMigrationITCase}} and
{{StatefulJobWBroadcastStateMigrationITCase}}. It appears that files are
deleted that shouldn't be deleted (see [~Yanfei Lei]'s [comment in
FLINK-31593|https://issues.apache.org/jira/browse/FLINK-31593?focusedCommentId=17706679&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-17706679]).
It's quite reproducible when generating the 1.17 test data for
{{StatefulJobWBroadcastStateMigrationITCase}} and doing a test run to verify it.
I'm attaching the debug logs of such two runs that I generated for FLINK-31593
in this issue as well.
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