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https://issues.apache.org/jira/browse/SPARK-12265?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15117026#comment-15117026
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Apache Spark commented on SPARK-12265:
--------------------------------------

User 'dragos' has created a pull request for this issue:
https://github.com/apache/spark/pull/10921

> Spark calls System.exit inside driver instead of throwing exception
> -------------------------------------------------------------------
>
>                 Key: SPARK-12265
>                 URL: https://issues.apache.org/jira/browse/SPARK-12265
>             Project: Spark
>          Issue Type: Bug
>          Components: Mesos
>    Affects Versions: 1.6.0
>            Reporter: Iulian Dragos
>
> Spark may call {{System.exit}} if Mesos sends an error code back to the 
> MesosSchedulerDriver. This makes Spark very hard to test, since this 
> effectively kills the driver application under test. Such tests may run under 
> ScalaTest, that doesn't get a chance to collect a result and populate a 
> report.
> Relevant code is in MesosSchedulerUtils.scala:
> {code}
>             val ret = mesosDriver.run()
>             logInfo("driver.run() returned with code " + ret)
>             if (ret != null && ret.equals(Status.DRIVER_ABORTED)) {
>               System.exit(1)
>             }
> {code}
> Errors should be signaled with a {{SparkException}} in the correct thread.



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