Tommy Becker created KAFKA-5256:
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Summary: Non-checkpointed state stores should be deleted before
restore
Key: KAFKA-5256
URL: https://issues.apache.org/jira/browse/KAFKA-5256
Project: Kafka
Issue Type: Bug
Components: streams
Affects Versions: 0.10.2.1
Reporter: Tommy Becker
Currently, Kafka Streams will re-use an existing state store even if there is
no checkpoint for it. This seems both inefficient (because duplicate inserts
can be made on restore) and incorrect (records which have been deleted from the
backing topic may still exist in the store). Since the contents of a store with
no checkpoint are unknown, the best way to proceed would be to delete the store
and recreate before restoring.
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