WeightedRangePartitioner should not check if input is empty if quantile file is
empty
-------------------------------------------------------------------------------------
Key: PIG-1290
URL: https://issues.apache.org/jira/browse/PIG-1290
Project: Pig
Issue Type: Bug
Affects Versions: 0.6.0, 0.7.0
Reporter: Pradeep Kamath
Fix For: 0.7.0
Currently WeightedRangePartitioner checks if the input is also empty if the
quantile file is empty. For this it tries to read the input (which under the
covers will result in creating splits for the input etc). If the input is a
directory with many files, this could result in many calls to the namenode from
each task - this can be avoided.
If the input is non empty and quantile file is empty, then we would error out
anyway (this should be confirmed). Also while fixing this jira we should ensure
that pig can still do order by on empty input.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
