[jira] [Assigned] (SPARK-14454) Better exception handling while marking tasks as failed

["Apache Spark (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-14454?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Apache Spark reassigned SPARK-14454:
------------------------------------

    Assignee: Apache Spark

> Better exception handling while marking tasks as failed
> -------------------------------------------------------
>
>                 Key: SPARK-14454
>                 URL: https://issues.apache.org/jira/browse/SPARK-14454
>             Project: Spark
>          Issue Type: Bug
>          Components: Spark Core
>            Reporter: Sameer Agarwal
>            Assignee: Apache Spark
>
> Add support for better handling of exceptions inside catch blocks if the code within the block throws an exception. For instance here is the code in a catch block before this change in WriterContainer.scala:
> {code}
> logError("Aborting task.", cause)
> // call failure callbacks first, so we could have a chance to cleanup the writer.
> TaskContext.get().asInstanceOf[TaskContextImpl].markTaskFailed(cause)
> if (currentWriter != null) {
>   currentWriter.close()
> }
> abortTask()
> throw new SparkException("Task failed while writing rows.", cause)
> {code}
> If markTaskFailed or currentWriter.close throws an exception, we currently lose the original cause. This PR fixes this problem by implementing a utility function Utils.tryWithSafeCatch that suppresses (Throwable.addSuppressed) the exception that are thrown within the catch block and rethrowing the original exception.



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