Wrong timestamp in Kibana

I have the following configuration:

Filebeat -> Kafka -> Logstash -> ES

In logstash.conf I assign value of variable logTimestamp to @timestamp:

grok {
  match => {"message" => "(?<logTime>[0-9]{2}:[0-9]{2}:[0-9]{2},[0-9]{3})"}
ruby {
  code => 'event.set("currentDate", Time.now.getlocal("-05:00").strftime("%Y.%m.%d"))'
ruby {
  code => 'event.set("logTimestamp", event.get("currentDate") + " " + event.get("logTime"))'
date {
  match => ["logTimestamp", "YYYY.MM.dd HH:mm:ss,SS"]

So the field values of logTimestamp and @timestamp should be the same. But in Kibana I can see they are different:

This is what Logstash logs show:

"logTimestamp" => "2017.07.12 00:59:24,578",
  "@timestamp" => 2017-07-12T22:06:22.463Z,

It's also unclear what timestamp value is assigned to @timestamp.
Could anybody explain why that happened?

Found the typo: extra S should be added to match => ["logTimestamp", "YYYY.MM.dd HH:mm:ss,SS"]

@timestamp -> time when log write to ES ( localtime)
logTimestamp -> time of log, it's generated by program .... Sometime, logTimestamp is time in GMT.

i think that :). i hope it'll useful with you :slight_smile:

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