[
https://issues.apache.org/jira/browse/SPARK-31312?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Wenchen Fan updated SPARK-31312:
--------------------------------
Fix Version/s: 2.4.6
> Transforming Hive simple UDF (using JAR) expression may incur CNFE in later
> evaluation
> --------------------------------------------------------------------------------------
>
> Key: SPARK-31312
> URL: https://issues.apache.org/jira/browse/SPARK-31312
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.4.5, 3.0.0, 3.1.0
> Reporter: Jungtaek Lim
> Assignee: Jungtaek Lim
> Priority: Major
> Fix For: 3.0.0, 2.4.6
>
>
> In SPARK-26560, we ensured that Hive UDF using JAR is executed regardless of
> current thread context classloader.
> [~cloud_fan] pointed out another potential issue in post-review of
> SPARK-26560 - quoting the comment:
> {quote}
> Found a potential problem: here we call HiveSimpleUDF.dateType (which is a
> lazy val), to force to load the class with the corrected class loader.
> However, if the expression gets transformed later, which copies
> HiveSimpleUDF, then calling HiveSimpleUDF.dataType will re-trigger the class
> loading, and at that time there is no guarantee that the corrected
> classloader is used.
> I think we should materialize the loaded class in HiveSimpleUDF.
> {quote}
> This JIRA issue is to track the effort of verifying the potential issue and
> fixing the issue.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org
For additional commands, e-mail: issues-h...@spark.apache.org
