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Directory structure

The directory layout of a Karaf installation is as follows:

  • /bin: startup scripts
  • /etc: configuration files
  • /data: working directory
    • /cache: OSGi framework bundle cache
    • /generated-bundles: temporary folder used by the deployer
    • /log: log files
  • /deploy: hot deploy directory
  • /instances: directory containing child instances
  • /lib: contains the bootstrap libraries
    • /lib/ext: directory for JRE extensions
    • /lib/endorsed: directory for endorsed libraries
  • /system: OSGi bundles repository, laid out as a Maven 2 repository

The data folder contains all the working and temporary files for Karaf. If you want to restart from a clean state, you can wipe out this directory, which has the same effect as using the clean option.