In hive, can a php custom reducer include another php file? -


let me explain actual problem using simple dummy problem. input: 1 2 3 4

output : 1 4 9 16

i write custom reducer process.php read every line , square numbers. square function readily available in other file lets utils.php can not require_once('utils.php') in process.php

hive query : 

from (   select num1, num2 input )aa select transform(num1, num2) using 'process.php' num1,num2   ;

i have tried doing on amazon aws infrastructure. no success. there no documentation this. appreciated. thanks.

i answering own question found fix problem. "require_once" indeed allowed in reducer script there catch.

let me name files clarity ...
reducer script : reducer.php
required file : utils.php

case 1: reducer.php , utils.php in same folder
require_once('utils.php') works.

case 2: reducer.php , utils.php in different folder
lets paths a/reducer.php , a/b/utils.php again, require_once('utils.php') works. require_once('b/utils.php') not needed, in fact require_once('b/utils.php') doesn't work.
reason: files added via 'add file' end in same directory on mapper/reducer.


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