Logstash - Dateformat yyyyMMdd HHmmss

Elastic Stack Logstash
1

Hi,

I have still problem to get right timestamp in elastic.

One Row of log looks like:

20210611 111146 SOME Date Field ...

I tried:

 grok {
            match => [ "message" , "%{DATA:timestamp}" ]
    }
  date {
   match => [ "timestamp","yyyyMMdd HHmmss" ]
   timezone => [ "Europe/Berlin" ]
   target => "@timestamp"
  }

}

Still no chance to get right date format into timestamp

any ideas?

Regards

Axel

2

Try custom date format, similar to DATESTAMP_EVENTLOG

    grok {
     match => { "message" => [ "%{DATELOG:timestamp} %{GREEDYDATA}"] }
     pattern_definitions => { "DATELOG" => "%{YEAR}%{MONTHNUM2}%{MONTHDAY} %{HOUR}%{MINUTE}%{SECOND}}" } 
    }
2 Likes
3

thank you .. unfortunately doesn't working.

filter {
if "fb-uc4" in [tags] {
grok {
match => { "message" => [ "%{DATELOG:timestamp} %{GREEDYDATA}"] }
pattern_definitions => { "DATELOG" => "%{YEAR}%{MONTHNUM2}%{MONTHDAY} %{HOUR}%{MINUTE}%{SECOND}}" }
}
}
}

I receive grok parse failure

REgards

Axel

4

True, my appology, extra } after SECOND. You don't need %{GREEDYDATA}, it's optional.

    grok {
     match => { "message" => [ "%{DATELOG:timestamp} "] }
     pattern_definitions => { "DATELOG" => "%{YEAR}%{MONTHNUM2}%{MONTHDAY} %{HOUR}%{MINUTE}%{SECOND}" } 
    }

      date {
	    match => ["timestamp", "YYYYMMdd HHmmss"]
        timezone => "Europe/Berlin"
	    target => "timestamp"
     }

Result:

{
    "@timestamp" => 2023-02-03T14:07:38.710260900Z,
     "message" => "20210611 111146 SOME Date Field",
     "timestamp" => 2021-06-11T09:11:46.000Z
}
5

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