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Files are not fully ingested when using autodiscover

Stack

By default Filebeat closes files as soon as they are removed. This can cause Filebeat not to ingest the last log lines if files are removed shortly after the last entries were written. This is a common cause of data loss when using Kubernetes autodiscover.

To prevent this from happening, set:

  • close.on_state_change.removed: false for the Filestream input
  • close_removed: false for the Log or Container input.

Stack 9.0.8 Stack 9.1.5 The hints based autodiscover configuration includes the close.on_state_change.removed setting, set to false by default.

Note

In Filebeat versions 8.x and between versions 9.0.0 - 9.0.7 and 9.1.0 - 9.1.4, this setting isn't specified by default, so you must add it to the configuration manually.

Here is an example of setting close.on_state_change.removed: false when using hints on Kubernetes:

filebeat.autodiscover:
  providers:
    - type: kubernetes
      hints.enabled: true
      hints.default_config:
        type: filestream
        id: container-logs-${data.container.id}
        prospector.scanner.symlinks: true
        close.on_state_change.removed: false
        parsers:
          - container: ~
        paths:
          - /var/log/containers/*-${data.container.id}.log