DLLog: An Online Log Parsing Approach for Large-Scale System

Table 2

HDFS log data format.

Timestamp	081109 203521 146
Log level	INFO
Component name	dfs. DataNode$PacketResponder
Log event	Received block blk_7503483334202473044 of size 233217 from10.251.71.16
Log template words	“Received,” “block,” “of,” “size,” “from”
Parameter words	“blk_7503483334202473044,” “233217,” “10.251.71.16”
Log template	Received block of size from