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https://issues.apache.org/jira/browse/LIVY-636?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17066309#comment-17066309
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Glenn Thomas commented on LIVY-636:
-----------------------------------
We faced this issue as well, and can confirm that removing scala dependencies
from our jar solved the issue.
One interesting thing is that this jar works:
{code:java}
package foo.bar.baz
class MyClass {
def mytest(x:String) {
println("I am " + x)
}
}
{code}
While this jar does not work:
{code:java}
package scala.foo.bar.baz
class MyClass {
def mytest(x:String) {
println("I am " + x)
}
}
{code}
So perhaps the issue is something to do with "scala" being in package names
within the jar, rather than an issue with scala itself?
> Unable to create interactive session with additional JAR in
> spark.driver.extraClassPath
> ---------------------------------------------------------------------------------------
>
> Key: LIVY-636
> URL: https://issues.apache.org/jira/browse/LIVY-636
> Project: Livy
> Issue Type: Bug
> Affects Versions: 0.6.0
> Reporter: Ishita Virmani
> Priority: Major
> Attachments: applicationmaster.log, container.log, stacktrace.txt,
> test.png
>
>
> Command Run: c{{url -H "Content-Type: application/json" -X POST -d
> '\{"kind":"pyspark","conf":{"spark.driver.extraClassPath":"/data/XXX-0.0.1-SNAPSHOT.jar"}}'
> -i http://<LIVY_SERVER_IP:PORT>/session}}
> {{The above command fails to create a Spark Session on YARN with Null pointer
> exception. Stack trace for the same has been attached along-with.}}
> The JAR file here is present on local driver Path. Also tried using HDFS path
> in the following manner
> {{hdfs://<NM_IP>:<NM_Port>/data/XXX-0.0.1-SNAPSHOT.jar}}
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