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https://issues.apache.org/jira/browse/KUDU-2254?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16319358#comment-16319358
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Will Berkeley commented on KUDU-2254:
-------------------------------------
We might be able to use
[TaskContext|https://spark.apache.org/docs/2.2.0/api/java/org/apache/spark/TaskContext.html]
to detect this situation and warn users.
> Detect and warn about misusage of KuduContext in spark applications
> -------------------------------------------------------------------
>
> Key: KUDU-2254
> URL: https://issues.apache.org/jira/browse/KUDU-2254
> Project: Kudu
> Issue Type: Improvement
> Components: spark
> Affects Versions: 1.5.0
> Reporter: Hao Hao
>
> Since KuduContext carries a bunch of information for client connection, such
> as authentication token, KuduContext should be created in the driver and
> shared with executors.
> Even if we have put comments for KuduContext class
> (https://github.com/apache/kudu/blob/master/java/kudu-spark/src/main/scala/org/apache/kudu/spark/kudu/KuduContext.scala#L43),
> it would be great to provide a way to warn users (e.g Logging) about such
> behavior since this kind of issues are very subtle to detect.
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