Evicts objects from caches which reflect sstable content, like the row
cache. In the future, it will also drop the page cache
and sstable index caches.
Unlike lsa/compact, doesn't cause reactor stalls.
The old lsa/compact call invokes memory reclamation, which is
non-preemptible. It also compacts LSA segments, so does more
work. Some use cases don't need to compact LSA segments, just want the
row cache to be wiped.
Message-Id: <20210301120211.36195-1-tgrabiec@scylladb.com>
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