Tomasz Grabiec 78274276f5 row_cache: Use the memtable cleaner to create memtable snapshot during update ...

Memtable entries should be cleaned using memtable cleaner, which
unlike the cache' cleaner is not associated with the cache
tracker. It's an error to clean a snapshot using tracker which doesn't
own the entries. This will corrupt cache tracker's row counter.

Fixes failure of test_exception_safety_of_update_from_memtable from
row_cache.cc in debug mode and with allocation failure injection
enabled.

Introduce in "cache: Defer during partition merging"
(70c72773be).
Message-Id: <1528988256-20578-1-git-send-email-tgrabiec@scylladb.com>

2018-06-14 18:03:02 +03:00

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