Sam Tunnicliffe created CASSANDRA-11104:
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Summary: KeysSearcher doesn't filter results by key range
Key: CASSANDRA-11104
URL: https://issues.apache.org/jira/browse/CASSANDRA-11104
Project: Cassandra
Issue Type: Bug
Components: Local Write-Read Paths
Reporter: Sam Tunnicliffe
Assignee: Sam Tunnicliffe
Fix For: 3.0.x, 3.x
In 3.0 the check in {{KeysSearcher}} to validate that a hit from the index is
falls within the key range of command being executed was ommitted. The effect
of this can be observed in a vnode cluster with > 1 node where nodes contain
non-contiguous ranges.
Because of the lack of range checking, each range command sent to a given
replica will return all matching rows, resulting in duplicates in the result
set (i.e. one duplicate per merged range).
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