[SPARK-23391] It may lead to overflow for some integer multiplication

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.3.0
• Fix Version/s: 2.2.2, 2.3.0
• Component/s: Spark Core
• Assignee: liuxian
• Reporter: liuxian
• Created: 12/Feb/18 03:24
• Updated: 12/Feb/18 14:53
• Resolved: 12/Feb/18 14:53

Description

In the getBlockData,blockId.reduceId is the Int type, when it is greater than 2^28, blockId.reduceId*8 will overflow.

In the decompress0, len and  unitSize are  Int type, so len * unitSize may lead to  overflow

 

 

Issue Links

• relates to: SPARK-23358 When the number of partitions is greater than 2^28, it will result in an error result
• links to: [Github] Pull Request #20581 (10110346)