My log parsed by logstash with some fields are null string, message is like this:
USR: NA, SID: null ....
So SID is null, how to not write to ELK if field is "null" ?
SID null
My log parsed by logstash with some fields are null string, message is like this:
USR: NA, SID: null ....
So SID is null, how to not write to ELK if field is "null" ?
SID null
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