[HIVE-21329] Custom Tez runtime unordered output buffer size depending on operator pipeline

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.0.0-alpha-1
• Component/s: Tez
• Assignee: Jesús Camacho Rodríguez
• Reporter: Jesús Camacho Rodríguez
• Created: 27/Feb/19 01:57
• Updated: 27/Feb/24 22:23
• Resolved: 28/Feb/19 06:24

Description

For instance, if we have a reduce sink operator with no keys followed by a Group By (merge partial), we can decrease the output buffer size since we will only produce a single row.