TTL histogram for sstable metadata
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Key: CASSANDRA-3442
URL: https://issues.apache.org/jira/browse/CASSANDRA-3442
Project: Cassandra
Issue Type: Improvement
Components: Core
Reporter: Jonathan Ellis
Priority: Minor
Under size-tiered compaction, you can generate large sstables that compact
infrequently. With expiring columns mixed in, we could waste a lot of space in
this situation.
If we kept a TTL EstimatedHistogram in the sstable metadata, we could do a
single-sstable compaction aginst sstables with over 20% (?) expired data.
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