[SPARK-9467] Specialized accumulators

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.5.0
• Component/s: Spark Core
• Assignee: Shixiong Zhu
• Reporter: Shixiong Zhu
• Created: 30/Jul/15 04:40
• Updated: 07/Aug/15 07:10
• Resolved: 07/Aug/15 07:10

Description

In order for SQL metrics to work better, we'd need to create a subtype of accumulator called LongAccumulator and DoubleAccumulator, that includes specialized methods for updating.

Issue Links

• links to: [Github] Pull Request #7996 (zsxwing)