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Collect logs from a self-hosted RabbitMQ broker — connections, channel activity, node events, and errors — with the OpenTelemetry Collector. The same Collector can also forward traces and metrics from your apps — see Connect OpenTelemetry Collector to Bronto.

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Prerequisites

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Configure the Collector

RabbitMQ entries begin with a timestamp, and some span multiple lines (crash reports). Use multiline keyed on the leading timestamp:
/etc/otel/config.yaml
receivers:
  filelog/rabbitmq:
    include:
      - /var/log/rabbitmq/*.log
    multiline:
      line_start_pattern: '^\d{4}-\d{2}-\d{2}'
    resource:
      service.name: rabbitmq
      service.namespace: <YOUR_COLLECTION_NAME>

processors:
  batch:

exporters:
  otlphttp/brontologs:
    logs_endpoint: "https://ingestion.<REGION>.bronto.io/v1/logs"
    compression: gzip
    headers:
      x-bronto-api-key: <YOUR_API_KEY>

service:
  pipelines:
    logs:
      receivers: [filelog/rabbitmq]
      processors: [batch]
      exporters: [otlphttp/brontologs]
Set <REGION> to eu or us.

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What you will see in Bronto

Open Search and filter by service.name = rabbitmq. Each line carries a timestamp, log level ([info], [warning], [error]), the Erlang process id, and the message — connection open/close, channel errors, queue declarations, and node lifecycle events. Bronto’s Custom Parser extracts these fields server-side.

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Troubleshooting

  • Want structured fields at the source? RabbitMQ’s default format is plain text. For JSON logs (RabbitMQ 3.9+), set log.file.formatter = json in rabbitmq.conf, then add a json_parser operator to the receiver.
  • For general issues, see OTel Collector troubleshooting.

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Alternative: Fluent Bit

If you already run Fluent Bit, tail the RabbitMQ log file and forward it over HTTP:
fluent-bit.conf
[INPUT]
    name  tail
    path  /var/log/rabbitmq/*.log
    tag   rabbitmq

[OUTPUT]
    name        http
    match       rabbitmq
    host        ingestion.<REGION>.bronto.io
    port        443
    tls         on
    format      json_lines
    compress    gzip
    header      x-bronto-api-key    <YOUR_API_KEY>
    header      x-bronto-dataset    rabbitmq
    header      x-bronto-collection <YOUR_COLLECTION_NAME>
Set Format to json_lines, not json. See Connect Fluent Bit to Bronto for installation.