@timestamp with [13-Apr-2017 16:36:22 America/New_York]

Elastic Stack Logstash
1

I have a PHP log I'm trying to get times from. Logstash is just setting @timestamp as the current time the log is parsed.

The log starts off with this:
[13-Apr-2017 16:36:22 America/New_York]

The relevant part of my filter looks like this: (grok matches, I just abbreviated)

    grok {
      match => [
        "message", "\[%{MONTHDAY}-%{MONTH}-%{YEAR} %{TIME} %{DATA:tz}\] ..."
      ]
    }
    date {
      timezone => "%{tz}"
      locale => "en"
      match => [ "timestamp", "dd-MMM-yyyy HH:mm:ss ZZZ" ]
    }

The value of @timestamp when I run this is always the current date/time.

What changes do I need to make for this to work?

2

You're not capturing the timestamp components into a timestamp field. Your grok expression should look like this

\[(?<timestamp>%{MONTHDAY}-%{MONTH}-%{YEAR} %{TIME}) %{DATA:tz}\] ...

and you should remove " ZZZ" from your date pattern.

3

Finally, I understand how the timestamp is assigned. Thank you!

4

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