Default lib jars folder for Apache Toree kernel

Question

Say I want a default relative lib folder in jupyter notebook project directory where I can download custom jars so that I can import later without %addjar magic.

I was under impression I can do something like:

"__TOREE_OPTS__": "--jar-dir=./lib/"

in ~/.local/share/jupyter/kernels/apache_toree_scala/kernel.json, but this doesn't work.

What am I missing?

Answer 1

The following kernel.json "just works":

# ~/.local/share/jupyter/kernels/apache_toree_scala/kernel.json
{
  "argv": [
    "/home/sergey/.local/share/jupyter/kernels/apache_toree_scala/bin/run.sh",
    "--profile",
    "{connection_file}"
  ],
  "env": {
    "DEFAULT_INTERPRETER": "Scala",
    "__TOREE_SPARK_OPTS__": "--jars=./lib/*.jar",
    "__TOREE_OPTS__": "",
    "SPARK_HOME": "/home/sergey/spark-3.3.2-bin-hadoop3"  
  },
  "display_name": "Apache Toree - Scala",
  "language": "scala",
  "interrupt_mode": "signal",
  "metadata": {}
}

Answer 2

Try modifying the kernel.json file by adding the --jars ./lib/*.jar option under env section, pointing to the JAR files relative to the project directory