[HIVE-16864] add validation to stream position search in LLAP IO

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.3.0, 2.4.0, 3.0.0
• Assignee: Sergey Shelukhin
• Reporter: Prasanth Jayachandran
• Created: 09/Jun/17 01:56
• Updated: 22/May/18 23:59
• Resolved: 19/Jun/17 20:50

Description

There's a TODO there to add the checks. We've seen some issues before where incorrect ranges lead to obscure errors after this method returns a bad result due to absence of validity checks; we also see one now.
Adding the checks.