回复：saving DF to HDFS in parquet format very slow in SparkSQL app

Tue, 09 Aug 2016 02:28:44 -0700 

maybe this problem is not so easy to understand, so I attached my full code.
Hope this could help in solving the problem.

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Thanks&Best regards!
San.Luo

----- 原始邮件 -----
发件人：<luohui20...@sina.com>
收件人："user" <user@spark.apache.org>
主题：saving DF to HDFS in parquet format very slow in SparkSQL app
日期：2016年08月09日 15点34分

hi there:    I got a problem in saving a DF to HDFS as parquet format very 
slow. And I attached a pic which shows a lot of time is spent in getting 
result.the code is 
:streamingData.write.mode(SaveMode.Overwrite).parquet("/data/streamingData")
I don't quite understand why my app is so slow in getting the result. I tried 
to access my HDFS while the app is running slow , HDFS is ok.
Any idea will be appreciated.


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Thanks&amp;Best regards!
San.Luo

Attachment: DataExtractor.scala
Description: Binary data

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