Robert Stupp created CASSANDRA-12062:
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Summary: Prevent key invalidation if there's no key to invalidate
Key: CASSANDRA-12062
URL: https://issues.apache.org/jira/browse/CASSANDRA-12062
Project: Cassandra
Issue Type: Improvement
Reporter: Robert Stupp
Assignee: Robert Stupp
Priority: Minor
In {{SSTableRewriter}} we currently assume that there are keys to be
invalidated in the key cache. That's not always true - especially if a bunch of
tiny sstables have been generated.
Patch saves one {{synchronized}} and a few objects if that's the case.
Just a small optimisation, but maybe worth to include.
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