How can I execute my UDF paralliazing

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john201
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How can I execute my UDF paralliazing

Post by john201 » Wed Aug 30, 2017 12:04 pm

I wrote a transform udf , and when I use it , I found it is so slowly , and seen like not execute parallizing.
My machine have 8 cores, but when i run my sql with udf, most of the cpu core seems not been runing.

please help.

sKwa
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Re: How can I execute my UDF paralliazing

Post by sKwa » Wed Aug 30, 2017 11:25 pm

Hi!

Not enough info, at least can you describe what it do, type of function (Scalar/Aggregate/Analytic/Transform), language (Python/Java/C++/R)? For example R do not supports parallelization (functions with recursion too). Also it can be a problem in implementation, so source code is also required.

Regards.

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