Ethan Rose created HDDS-13083:
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Summary: Handle cases where block deletion generates tree file
before scanner
Key: HDDS-13083
URL: https://issues.apache.org/jira/browse/HDDS-13083
Project: Apache Ozone
Issue Type: Sub-task
Reporter: Ethan Rose
In a cluster upgraded to the first version supporting reconciliation, it is
likely that block deletion will reach many closed containers before the scanner
does, which will generate the checksum file with a block delete list but no
merkle tree. We need to make sure our file parsing code does not raise errors
if it encounters a checksum file with no merkle tree. We also cannot use file
existence to indicate the presence of checksum info like
[here|https://github.com/apache/ozone/blob/56e7ed4824f18f8d681b3570904ac8253d9d375f/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/keyvalue/KeyValueHandler.java#L1394].
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