There are some moderate overhead for Hive UDF. My test shows around 10%-20% slow down than Pig native UDF. I will create a document Jira.
Thanks, Daniel On 9/9/15, 9:27 AM, "Rohini Palaniswamy" <rohini.adi...@gmail.com> wrote: >Daniel, > Not sure you saw this. We will have to document the performance >implications of hive udfs. Does the wrapping/unwrapping cause significant >overhead to impact performance or is it negligible? > >Regards, >Rohini > >On Mon, Jul 27, 2015 at 8:50 AM, Eyal Allweil < >eyal_allw...@yahoo.com.invalid> wrote: > >> Is there any reason not use Hive UDF's in Pig 0.15? >> I'm thinking mostly about performance, but if there are any other >>reasons >> I'd be happy to hear them. >> For example, we have a simple Java implementation of lpad that we use. >> Should we bother keeping it, or can we use the Hive version? >> I posted a question about this on StackOverflow, but it didn't seem to >>get >> anyone's attention. >> Thanks,Eyal >> Using Hive UDF's in Pig >> >> | | >> | | | | | | | | >> | Using Hive UDF's in PigIs there any reason not use Hive UDF's in Pig >> 0.15? I'm thinking mostly about performance, but if there are any other >> reasons I'd be happy to hear them. For example... | >> | | >> | View on stackoverflow.com | Preview by Yahoo | >> | | >> | | >> >> >>