[jira] [Resolved] (SPARK-50281) pyspark local session `spark.jars` configuration does not work

["Hyukjin Kwon (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-50281?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hyukjin Kwon resolved SPARK-50281.
----------------------------------
    Fix Version/s: 4.0.0
         Assignee: Hyukjin Kwon
       Resolution: Fixed

should be fixed by https://github.com/apache/spark/commit/d96c623c76015cc20bc19d693d96275dcf39ecf7

> pyspark local session `spark.jars` configuration does not work 
> ---------------------------------------------------------------
>
>                 Key: SPARK-50281
>                 URL: https://issues.apache.org/jira/browse/SPARK-50281
>             Project: Spark
>          Issue Type: Bug
>          Components: PySpark
>    Affects Versions: 4.0.0
>            Reporter: Weichen Xu
>            Assignee: Hyukjin Kwon
>            Priority: Major
>             Fix For: 4.0.0
>
>
> pyspark local session `spark.jars` configuration does not work 
>  
> Reproducing code:
>  
> if I do the following in a python shell:
> {code:java}
> from pyspark.sql import SparkSession
> spark=SparkSession.builder.config("spark.jars", <my_jar_file_path>).master("local[*]").getOrCreate() {code}
> then do:
> {code:java}
> spark.sparkContext._jvm.aaa.bbb.ccc  # aaa.bbb.ccc is the class in the jar file
> {code}
> it can't access the Java class correctly.
>  
> but if I do:
> {code:java}
> bin/pyspark --jars=<my_jar_file_path>{code}
> then in the pyspark shell, the issue vanished.
>  
> this issue only happens in spark master, and it causes our CI failure:
> [https://github.com/mlflow-automation/mlflow/actions/runs/11765501211/job/32775243482#step:12:291]
>  



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