[IMPALA-7100] [DOCS] extend hardware requirements to have consistent backend memory

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: Impala 2.13.0, Impala 3.1.0
• Component/s: Docs
• Epic Color: ghx-label-6
• Assignee: Alexandra Rodoni
• Reporter: Balazs Jeszenszky
• Created: 31/May/18 07:51
• Updated: 06/Jun/18 00:41
• Resolved: 05/Jun/18 20:54

Description

A single impala executor with a lower memory limit than the rest can easily become a bottleneck and lead to suboptimal performance. We should mention having consistent memory allocations across backends.

Note that this does not apply to coordinator-only nodes.