Aleksandr Savonin created FLINK-39964:
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Summary: Incremental checkpoint taken after a CLAIM-mode restore
from a native savepoint is not restorable
Key: FLINK-39964
URL: https://issues.apache.org/jira/browse/FLINK-39964
Project: Flink
Issue Type: Bug
Components: Runtime / Checkpointing, Runtime / State Backends
Reporter: Aleksandr Savonin
The first incremental checkpoint a job takes after restoring from a *native
savepoint* in RestoreMode.CLAIM can be completed successfully but be
*unrestorable*: it references reused RocksDB SST files at paths inside the new
checkpoint directory, while the bytes physically live in the savepoint
directory. Restoring a fresh job from such a checkpoint fails with a
file-not-found error. The problem is silent until a cold restore actually reads
the checkpoint back.
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