[HIVE-23901] Overhead of Logger in ColumnStatsMerger damage the performance

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.0.0
• Component/s: Standalone Metastore, Statistics
• Labels: pull-request-available
• Assignee: Yu-Wen Lai
• Reporter: Yu-Wen Lai
• Created: 23/Jul/20 01:08
• Updated: 10/Aug/20 18:52
• Resolved: 10/Aug/20 15:20

Description

When aggregating the column stats for a big partitioned table, we observed a large proportion of time spent in getLogger().  If we declare it as static, the execution time of aggregate can be greatly improved.

Issue Links

• links to: GitHub Pull Request #1301