[IMPALA-260] Planner should take into account memory limit when choosing between broadcast or partition join

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Impala 0.7
• Fix Version/s: Impala 1.0
• Assignee: Marcel Kinard
• Reporter: Lenni Kuff
• Created: 16/Apr/13 00:36
• Updated: 22/Apr/13 23:55
• Resolved: 22/Apr/13 23:55

Description

Planner should take into account memory limit (either user specified or max of the machine) when choosing between broadcast or partition join. The thinking is that in some cases a partition join should be favored over a broadcast join if the broadcast join might cause the system to OOM.