Topbeat was replaced by Metricbeat in 5.0. To learn more about Metricbeat, see the Metricbeat documentation.
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Elastic Docs ›Topbeat Reference [1.1] ›Troubleshooting ›Frequently Asked Questions

Why is @metadata missing in Logstash?

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Why is @metadata missing in Logstash?

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Logstash outputs remove @metadata fields automatically. Therefore, if Logstash instances are chained directly or via some message queue (for example, Redis or Kafka), the @metadata field will not be available in the final Logstash instance.

To preserve @metadata fields, use the Logstash mutate filter with the rename setting to rename the fields to non-internal fields.

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