topic Re: Databricks Apps based on Streamlit could not find a valid JAVA_HOME installation in Warehousing & Analytics

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

Bakkie — Thu, 13 Feb 2025 14:25:09 GMT

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!

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

alan-nousot — Fri, 04 Apr 2025 15:21:51 GMT

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

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

Bakkie — Fri, 24 Oct 2025 11:56:54 GMT

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

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

NandiniN — Fri, 24 Oct 2025 13:49:46 GMT

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.