Creating UDF and UDAF for Impala


 Installing the UDF Development Package

The output will be like below code.

[cloudera@quickstart impala-udf-samples-master]$ cmake .
— The C compiler identification is GNU 4.4.7
— The CXX compiler identification is GNU 4.4.7
— Check for working C compiler: /usr/bin/cc
— Check for working C compiler: /usr/bin/cc — works
— Detecting C compiler ABI info
— Detecting C compiler ABI info – done
— Check for working CXX compiler: /usr/bin/c++
— Check for working CXX compiler: /usr/bin/c++ — works
— Detecting CXX compiler ABI info
— Detecting CXX compiler ABI info – done
— Configuring done
— Generating done
— Build files have been written to: /home/cloudera/Downloads/impala-udf-samples-master

Upload  Library Files To Hdfs

  • UDF

  • UDAF

Create UDF&UDAF Functions

  • UDF

  • UDAF

 

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