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Collect logs from a self-hosted Redis server 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

redis.conf
logfile  /var/log/redis/redis-server.log
loglevel notice

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Configure the Collector

Redis writes one entry per line, so no multiline handling is needed:
/etc/otel/config.yaml
receivers:
  filelog/redis:
    include:
      - /var/log/redis/redis-server.log
    resource:
      service.name: redis
      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/redis]
      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 = redis. Each line carries the process role indicator (e.g. M master, S replica, C child), a timestamp, a level symbol, and the message — startup, configuration warnings, RDB/AOF persistence, replication, and client events. Bronto’s Custom Parser extracts these fields server-side.
Redis’s slow-command log (SLOWLOG) is held in memory and read with the SLOWLOG GET command — it is not written to the log file, so file tailing does not collect it.

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Troubleshooting

  • No logs? If logfile is empty, Redis logs to stdout (or journald under systemd). Set a file path in redis.conf and restart, or collect from journald with the journald receiver.
  • For general issues, see OTel Collector troubleshooting.

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Alternative: Fluent Bit

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

[OUTPUT]
    name        http
    match       redis
    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    redis
    header      x-bronto-collection <YOUR_COLLECTION_NAME>
Set Format to json_lines, not json. See Connect Fluent Bit to Bronto for installation and the full output reference.