Troubleshooting and Execution

Disabling Automated Updates

By default, LogScale tries to provide the latest the LogScale collector installers, if you have connection issues or the server is not connected to the internet, you may need to disable automatic updates.

  • Set the server setting to disabled In this case, updates are disabled. This is useful in airgapped environments.

  • Not set. In this case, LogScale uses our update server via a URL defined in the code.

Enable HTTP

We strongly encourage all users to use https:// and the LogScale Collector enforces using https:// for URLs, however it is possible to send to http:// addresses by supplying the command line flag.



This is only for testing purposes and not supported in production.


By default, the configuration file points to the directory var/lib/humio-log-collector as the storage for checkpoints.

  1. Stop the LogScale Collector service --humio-log-collector.service.

  2. Delete the database.db file to reset the state of the installation.

  3. Restart the LogScale LogScale Collector service.


You can troubleshoot the Falcon LogScale Collector using Using Console Stderr or the Debug Log.

Using Console Stderr

The LogScale Collector sends information to stderr if run from the CLI, the information is sent using JSON format and the detail level is controlled by the log-level. The log-level can be specified using two different approaches (highest priority first):

  • Using a command line argument: --log-level debug

  • Configuring a log-level in the config file (yaml):logLevel: debug

The following log-levels are supported:

  • trace (highest verbosity)

  • debug

  • info

  • warn

  • error (default)

  • fatal

The --log-pretty command line argument enables pretty-printing of console output for all logs, it has no effect on logs sent to LogScale, they use JSON format.

Debug Log

The Falcon LogScale Collector debug log can be sent to a LogScale instance by setting the HUMIO_DEBUG_LOG_ADDRESS and HUMIO_DEBUG_LOG_TOKEN environment variables:


The default log-level for info sent to the LogScale instance is trace, it is possible to change this with an environment variable:


To stop sending the debug log the environment variables need to be undefined.