Nachiket Patil created CASSANDRA-12030:
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Summary: Range tombstones that are masked by row tombstones should
not be written out
Key: CASSANDRA-12030
URL: https://issues.apache.org/jira/browse/CASSANDRA-12030
Project: Cassandra
Issue Type: Improvement
Reporter: Nachiket Patil
Assignee: Nachiket Patil
Priority: Minor
During compaction, if a table has range tombstone and a row delete with higher
timestamp than range tombstone, both are written out to disk. Some problems
seen because of this behavior:
1. The Range tombstone is expensive to maintain.
2. Range queries see timeouts when there are too many range tombstones present
which may be masked by row tombstones.
This can be avoided with simple optimization to not write out range tombstone
if it is masked by row delete.
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