;;
"user@spark.apache.org";
Subject: RE: Spark SQL udf(ScalaUdf) is very slow
This is a very interesting issue, the root reason for the lower performance
probably is, in Scala UDF, Spark SQL converts the data type from internal
representation to Scala representation via Scala r
the
improvement soon.
From: zzcclp [mailto:441586...@qq.com]
Sent: Monday, March 23, 2015 5:10 PM
To: user@spark.apache.org
Subject: Spark SQL udf(ScalaUdf) is very slow
My test env: 1. Spark version is 1.3.0 2. 3 node per 80G/20C 3. read 250G
parquet files from hdfs Test case: 1. register "
?*
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