Sam Tunnicliffe created CASSANDRA-15461:
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Summary: Legacy counter shards can cause false positives in
repaired data tracking
Key: CASSANDRA-15461
URL: https://issues.apache.org/jira/browse/CASSANDRA-15461
Project: Cassandra
Issue Type: Bug
Components: Observability/Metrics
Reporter: Sam Tunnicliffe
Assignee: Sam Tunnicliffe
It is expected that the serialization of legacy (pre-2.1) counter cells may
differ across replicas due to the remote vs local designation of the shards.
This will cause the repaired data digests calculated at read time to differ
where certain legacy shards are encountered. This does not, however, indicate
corruption of the repaired dataset and there isn't any action that operators
can take in this scenario. Excluding counter cells which contain legacy shards
from the digest calculation will avoid false positives.
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