Question 83809 in Docker Question posted in
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How to split OpenTelemetry file exporter output file – Docker

I am exporting traces and logs to a json file as below using Open Telemetry. The problem here is, the file is increasing day by day on the container. Is there a way we can limit the file size to 10 MB in the below configuration?

exporters:
# Data sources: traces, metrics, logs
  file:
    path: ./filename.json

In docker, we have the option to do this like below. Is there a similar option to do it in the opentelemetry exporter?

logging:
  driver: "json-file"
  options:
    max-size: "2m"
    max-file: "10"
    labels: "collector"
    env: "test"
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2

Answers


  1. 0

    That’s not possible https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/exporter/fileexporter
    File exporter is intended for primarily for debugging Collector without setting up backends, not for prod running. So your requested feature does not make sense for intented use case.

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  2. 0

    File-rotation support is now available in fileexporter:

    https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/exporter/fileexporter#file-rotation

    For your settings, I think this would look something like:

    exporters:
  file:
    path: ./log_basename
    rotation:
      max_megabytes: 2
      max_backups: 10
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