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https://issues.apache.org/jira/browse/SPARK-17493?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15481314#comment-15481314
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Sean Owen commented on SPARK-17493:
-----------------------------------
I don't think this is enough info. What does 'hang' mean here, is there a
reproduction? what do thread dumps show is going on?
> Spark Job hangs while DataFrame writing to HDFS path with parquet mode
> ----------------------------------------------------------------------
>
> Key: SPARK-17493
> URL: https://issues.apache.org/jira/browse/SPARK-17493
> Project: Spark
> Issue Type: Bug
> Components: Input/Output
> Affects Versions: 2.0.0
> Environment: AWS Cluster
> Reporter: Gautam Solanki
>
> While saving a RDD to HDFS path in parquet format with the following
> rddout.write.partitionBy("event_date").mode(org.apache.spark.sql.SaveMode.Append).parquet("hdfs:////tmp//rddout_parquet_full_hdfs1//")
> , the spark job was hanging as the two write tasks with Shuffle Read of size
> 0 could not complete. But, the executors notified the driver about the
> completion of these two tasks.
>
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