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Running jar on Databricks cluster from Airflow

ayush19
New Contributor III

Hello,

I have a jar file which is installed on a cluster. I need to run this jar from Airflow using DatabricksSubmitRunOperator. I followed the standard instructions as available on Airflow docs

https://airflow.apache.org/docs/apache-airflow-providers-databricks/1.0.0/operators.html

There is a parameter which is passed to the Operator, "libraries" which is supposed to contain the path to jar file. Since the jar file is already installed on the cluster, I don't wish to provide any specific path to jar. I tried few things but everything seems to be failing

1. Did not include libraries parameter - Failed with an error that it is required

ayush19_0-1722491889219.png

 

2. Added libraries parameter but kept it empty - Failed with an error that it needs some value

ayush19_1-1722491926724.png

 

3. Added path to jar file where it is stored - Failed with an error because it tried to install the jar to cluster and the user does not have 'manage' permission to do so

ayush19_2-1722491964523.png

4. Passed 'jar' key but value as empty - Got error "Library installation failed for library due to user error. Error messages:\nJava JARs must be stored in UC Volumes, dbfs, s3, adls, gs or as a workspace file/local file. Make sure the URI begins with 'dbfs:', 'file:', 's3:', 'abfss:', 'gs:', 'wasbs:', '/Volumes', or '/Workspace'but the URI is ''

ayush19_3-1722492023707.png

What should I do so that I can run the jar which is already installed on the cluster? Is there any dummy value I can use instead of mentioning jar file path? 

Again, the actual jar which I want to use is already installed on the cluster and do not actually want to install anything else. I have ran the main class of this jar file from notebook and it ran fine

1 REPLY 1

ayush19
New Contributor III

Thank you for the reply. Is there any other way to run the main class of jar file from Airflow? using any particular APIs?

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