processor-timestamp.asciidoc

Timestamp

timestamp

beta[]

The timestamp processor parses a timestamp from a field. By default the timestamp processor writes the parsed result to the @timestamp field. You can specify a different field by setting the target_field parameter. The timestamp value is parsed according to the layouts parameter. Multiple layouts can be specified and they will be used sequentially to attempt parsing the timestamp field.

Note	The timestamp layouts used by this processor are different than the formats supported by date processors in Logstash and Elasticsearch Ingest Node.

The layouts are described using a reference time that is based on this specific time:

Mon Jan 2 15:04:05 MST 2006

Since MST is GMT-0700, the reference time is:

01/02 03:04:05PM '06 -0700

To define your own layout, rewrite the reference time in a format that matches the timestamps you expect to parse. For more layout examples and details see the Go time package documentation.

If a layout does not contain a year then the current year in the specified timezone is added to the time value.

Example

Here is an example that parses the start_time field and writes the result to the @timestamp field then deletes the start_time field. When the processor is loaded, it will immediately validate that the two test timestamps parse with this configuration.

  - timestamp:
      field: start_time
      layouts:
        - '2006-01-02T15:04:05Z'
        - '2006-01-02T15:04:05.999Z'
        - '2006-01-02T15:04:05.999-07:00'
      test:
        - '2019-06-22T16:33:51Z'
        - '2019-11-18T04:59:51.123Z'
        - '2020-08-03T07:10:20.123456+02:00'
  - drop_fields:
      fields: [start_time]

Configuration settings

processors.asciidoc :works-with-fields!:

Name	Required	Default	Description
field	Yes		Source field containing the time to be parsed.
target_field	No	@timestamp	Target field for the parsed time value. The target value is always written as UTC.
layouts	Yes		Timestamp layouts that define the expected time value format. In addition layouts, UNIX and UNIX_MS are accepted.
timezone	No	UTC	IANA time zone name (for example, America/New_York) or fixed time offset (for example, +0200) to use when parsing times that do not contain a time zone. Specify Local to use the machine’s local time zone.
ignore_missing	No	false	Whether to ignore errors when the source field is missing.
ignore_failure	No	false	Whether to gnore all errors produced by the processor.
test	No		List of timestamps that must parse successfully when loading the processor.
id	No		Identifier for this processor instance. Useful for debugging.