Sylvain Lebresne created CASSANDRA-4478:
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Summary: Make index_interval be measured in kb (instead of number
of keys)
Key: CASSANDRA-4478
URL: https://issues.apache.org/jira/browse/CASSANDRA-4478
Project: Cassandra
Issue Type: Improvement
Reporter: Sylvain Lebresne
Priority: Minor
Fix For: 1.2
Currently, index_interval is measured in number of keys: how may keys before
adding an entry to the index summary. After CASSANDRA-2319, each index entry
also contains the columns index for the row, so index entry can be a bit bigger
and of differing sizes. Measuring in number of keys is thus sub-optimal and
difficult to tune, since you might want a different setting depending of
whether your rows are big or small, but the setting is global.
So we should move to measuring the interval in bytes.
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