EM
Size: a a a
EM
EM
MR
multiline.type: pattern
multiline.pattern: '^\[[0-9]{4}-[0-9]{2}-[0-9]{2}'
multiline.negate: true
multiline.match: after
This configuration uses the negate: true and match: after settings to specify that any line that does not match the specified pattern belongs to the previous line.
но теперь весь лог как одинEM
MR
MR
EM
EM
MR
MR
^[0-9]{4}-[0-9]{2}-[0-9]{2}
EM
MR
RK
Ю
Ю
RK
MR