Log Format
Dgraph’s log format comes from the glog library and is formatted as follows:
`Lmmdd hh:mm:ss.uuuuuu threadid file:line] msg...`
Where the fields are defined as follows:
L A single character, representing the log level (eg 'I' for INFO)
mm The month (zero padded; ie May is '05')
dd The day (zero padded)
hh:mm:ss.uuuuuu Time in hours, minutes and fractional seconds
threadid The space-padded thread ID as returned by GetTID()
file The file name
line The line number
msg The user-supplied message
Query Logging
To enable query logging, you must set -v=3
which will enable verbose logging for everything. Alternatively, you can set --vmodule=server=3
for only the dgraph/server.go file which would only enable query/mutation logging.