[PIG-4149] Rounding issue in FindQuantiles

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.14.0
• Component/s: impl
• Hadoop Flags: Reviewed
• Assignee: Daniel Dai
• Reporter: Daniel Dai
• Created: 02/Sep/14 06:19
• Updated: 21/Nov/14 05:58
• Resolved: 04/Sep/14 00:00

Description

In FindQuantiles, Pig calculates an integer toSkip inside sample, and skip "toSkip" sample records to find the next boundary. However, toSkip should not be an integer, this will cause rounding issue and all the remainder will goes to the last partition.