Troubleshoot Telegraf

This page documents an earlier version of Telegraf. Telegraf v1.24 is the latest stable version. View this page in the v1.24 documentation.

Validate your Telegraf configuration with --test

Run a single telegraf collection, outputting metrics to stdout: telegraf --config telegraf.conf --test

Use the --once option to single-shot execute

Once tested, run telegraf --config telegraf.conf --once to perform a single-shot execution of all configured plugins. This sends output to partner systems specified in the telegraf.conf rather than writing to stdout.

Add outputs.file to read to a file or STDOUT

The following step might be helpful if:

  • You’re encountering issues in your output and trying to determine if it’s an issue with your configuration or connection.
  • -test outputs metrics to stdout as expected and your input, parsers, processors, and aggregators are configured correctly. Note that if it’s a listener plugin, -test wouldn’t output any metrics right away.

Add the file output plugin with the metrics reporting to STDOUT or to a file.

  files = ["stdout"]

Set debug = true in your settings

When you set debug = true in global settings, Telegraf runs with debug log messages.

2021-06-28T19:18:00Z I! Starting Telegraf 1.19.0
2021-06-28T19:18:00Z I! Loaded inputs: cpu disk diskio mem net processes swap system
2021-06-28T19:18:00Z I! Loaded aggregators:
2021-06-28T19:18:00Z I! Loaded processors:
2021-06-28T19:18:00Z I! Loaded outputs: influxdb_v2
2021-06-28T19:18:00Z I! Tags enabled: host=MBP15-INFLUX.local
2021-06-28T19:18:00Z I! [agent] Config: Interval:10s, Quiet:false, Hostname:"MBP15-INFLUX.local", Flush Interval:30s
2021-06-28T19:18:00Z D! [agent] Initializing plugins
2021-06-28T19:18:00Z D! [agent] Connecting outputs
2021-06-28T19:18:00Z D! [agent] Attempting connection to [outputs.influxdb_v2]
2021-06-28T19:18:00Z D! [agent] Successfully connected to outputs.influxdb_v2
-06-28T19:18:00Z D! [agent] Starting service inputs

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Linux Package Signing Key Rotation

All signed InfluxData Linux packages have been resigned with an updated key. If using Linux, you may need to update your package configuration to continue to download and verify InfluxData software packages.

For more information, see the Linux Package Signing Key Rotation blog post.