=============== Feb 25, 2021 (KST) ===============
16:39:37.805395 log@legend F·NumFile S·FileSize N·Entry C·BadEntry B·BadBlock Ke·KeyError D·DroppedEntry L·Level Q·SeqNum T·TimeElapsed
16:39:37.854126 db@open opening
16:39:37.855182 version@stat F·[] S·0B[] Sc·[]
16:39:37.903390 db@janitor F·2 G·0
16:39:37.903519 db@open done T·49.264579ms
16:39:48.238980 db@close closing
16:39:48.239271 db@close done T·290.357µs
