[IMPALA-3469] Increase runtime filter minimum size to 1MB

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Impala 2.5.0
• Fix Version/s: Impala 2.6.0
• Component/s: Backend
• Labels: runtime-filters
• Target Version: Impala 2.6.0
• Assignee: Henry Robinson
• Reporter: Henry Robinson
• Created: 02/May/16 19:43
• Updated: 12/May/16 22:38
• Resolved: 12/May/16 22:38

Description

We should consider increasing the minimum bloom filter size to 1MB if there isn't any measured performance loss by doing so. This would help mitigate the situation where an estimate is too small, and so the filter is undersized (e.g. IMPALA-3466).