Benjamin Lerer created CASSANDRA-16944:
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Summary: Single partition reads can read more SSTables than
required
Key: CASSANDRA-16944
URL: https://issues.apache.org/jira/browse/CASSANDRA-16944
Project: Cassandra
Issue Type: Bug
Components: Legacy/Local Write-Read Paths
Reporter: Benjamin Lerer
Assignee: Benjamin Lerer
For some scenarios involving row deletions, range deletions or static columns,
the logic of
{{SinglePartitionReadCommand.queryMemtableAndSSTablesInTimestampOrder}} might
trigger more SSTables reads that expected.
For row deletions and range deletions the reasons is that the logic do not take
them into account. Once we hit a deleted row (caused by a row deletion or a
range deletion) with a timestamp higher than the one of the next SStable we
know that we can stop reading more SSTables.
For static columns the problems seems to have been introduced by the changes in
CASSANDRA-16671.
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