=============== Feb 25, 2021 (KST) ===============
16:39:37.437169 log@legend F·NumFile S·FileSize N·Entry C·BadEntry B·BadBlock Ke·KeyError D·DroppedEntry L·Level Q·SeqNum T·TimeElapsed
16:39:37.486242 db@open opening
16:39:37.487289 version@stat F·[] S·0B[] Sc·[]
16:39:37.534198 db@janitor F·2 G·0
16:39:37.534232 db@open done T·47.886709ms
16:39:47.606163 db@close closing
16:39:47.606626 db@close done T·459.059µs
