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Upgrade Hermod from 4.x to 4.0.7
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Upgrade Hermod from 4.x to 4.0.7

Owned by Ylva Andersson
Jan 29, 2025
1 min read

Hermod 4.0.7 is based on Spring Boot 3.4.1, where several configuration properties have been renamed or changed. Because of this, Logback dependencies for logging are included. There is the option to get json output, or getting the logs output to a file. The functionality and API of Hermod have not been changed and are fully backward compatible.

For better performance, the recommendation is to increase the java heap size up to 2Gigabit.

Step-by-step instruction

  1. Edit Logback configuration for Json output:
    logging:
    structured:
    format:
    console: ecs

  2. Increase the Java heap size to -Xmx2g in the deployment file.

  3. Save the configuration file and restart Hermod. 

  4. Test your new configuration on a non-production server, to make sure it works as expected. 

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