[Rule "normal-rule"]
suggestions=inc-bg-flush
conditions=missing-source
[Condition "normal-condition"]
source=LOG
regex=Stopping writes because we have \d+ immutable memtables \(waiting for flush\), max_write_buffer_number is set to \d+
[Suggestion "inc-bg-flush"]
option=DBOptions.max_background_flushes
action=increase
[Suggestion] # missing section name
option=CFOptions.max_write_buffer_number
action=increase