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https://issues.apache.org/jira/browse/FLINK-27104?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17518633#comment-17518633
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Sitan Pang commented on FLINK-27104:
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Maybe we could add a new option 'pipeline.external-resorces' to set external
jars for job.
For session job, 'pipeline.external-resorces' will be added into
'pipeline.jars', so it will be uploaded by clusterClient and loaded by
userClassLoader.
> ClassNotFound when submit jobs to session cluster with external jars
> --------------------------------------------------------------------
>
> Key: FLINK-27104
> URL: https://issues.apache.org/jira/browse/FLINK-27104
> Project: Flink
> Issue Type: Improvement
> Components: Client / Job Submission
> Affects Versions: 1.11.0
> Reporter: Sitan Pang
> Priority: Minor
>
> I'm trying to submit SQL jobs to session cluster on k8s, which need external
> local udfs jars.
> I meet ClassNotFound Exception because of the reasons below:
> * 'pipeline.jars' will be overwritten by '-j' option which only accepts one
> jar.
> * 'pipeline.classpaths' will not be uploaded, so local files could not be
> found in TM.
> * 'pipelines.cached-files' will not be added to classpaths. In
> Task#createUserCodeClassloader and ClientUtils#buildUserCodeClassLoader, only
> 'pipeline.jars' and 'pipeline.classpaths' are added to user class loader.
> Only combining external jars into one could solve this, which means we need
> to re-create a new jar every time.
> Is there a better way to submit with external jars?
> Or could we make 'pipeline.jars' directly used by users?
>
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