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https://issues.apache.org/jira/browse/SPARK-11328?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14975361#comment-14975361
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Yin Huai commented on SPARK-11328:
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The file already exists error was thrown from [this line |
https://github.com/apache/spark/blob/master/sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/WriterContainer.scala#L237]
when we try to create a record writer.
> Correctly propagate error message in the case of failures when writing parquet
> ------------------------------------------------------------------------------
>
> Key: SPARK-11328
> URL: https://issues.apache.org/jira/browse/SPARK-11328
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Reporter: Yin Huai
>
> When saving data to S3 (e.g. saving to parquet), if there is an error during
> the query execution, the partial file generated by the failed task will be
> uploaded to S3 and the retries of this task will throw file already exist
> error. It is very confusing to users because they may think that file already
> exist error is the error causing the job failure. They can only find the real
> error in the spark ui (in the stage page).
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