Databricks Apps based on Streamlit could not find a valid JAVA_HOME installation

[Bakkie]

We are launching our first Databricks Apps based on Streamlit.

The App works when simply running the notebook in our workspace, but fails after deployment due to "could not find a valid JAVA_HOME installation" when running in the system environment.

We tried setting the below environment variables via the app.yaml file (as suggested by the Assistant):

env:
- name: "JNAME"
value: "zulu17-ca-amd64"
- name: "JAVA_HOME"
value: "/usr/lib/jvm/zulu-17-ca-amd64"

Any help is much appreciated!

[alan-nousot]

any update on this? Currently running into the issue of java_home not being set for pyspark

[Bakkie · Accepted solution]

We solved this by not using pyspark and spark.sql(query) and instead using the databricks package

[NandiniN]

Databricks Apps (which use a lightweight, container-based runtime) do not automatically include JVM, best is to use the databricks package to not have dependency issues.