[HIVE-18318] LLAP record reader should check interrupt even when not blocking

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.0.0
• Assignee: Sergey Shelukhin
• Reporter: Sergey Shelukhin
• Created: 19/Dec/17 21:58
• Updated: 22/May/18 23:12
• Resolved: 21/Dec/17 03:22

Description

Hive operators don't check interrupts, and may not do blocking operations.
LLAP record reader only blocks in IO is slower than processing; so, if IO is fast enough, it will not ever block (at least not interruptibly, the sync w/IO on the object does not check interrupts), and thus never catch interrupts.
So, the task would be impossible to terminate.