HI, I am aggragating events for each session from log I fetch the log time from event in aggregate filter, i want to have a field startdatetime and assign session open time to this, set timeout_timestamp_field => "StartDateTime", Then assign this "StartDateTime" to @timestamp first part works …

Assigning an aggregated event timestamp to @timestamp

Badger April 23, 2020, 10:15pm 4

If that is rubydebug output then both are already of type Logstash::Timestamp, which is what a date filter creates. A date filter cannot parse that.

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