[FLINK-4539] Duplicate/inconsistent logic for physical memory size in classes "Hardware" and "EnvironmentInformation"

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.1.2
• Fix Version/s: 1.2.0
• Component/s: Runtime / Task
• Assignee: Stephan Ewen
• Reporter: Stephan Ewen
• Created: 31/Aug/16 12:04
• Updated: 31/Aug/16 17:03
• Resolved: 31/Aug/16 17:03

Description

Both Hardware and EnvironmentInformation have some logic to determine the size of the physical memory. The EnvironmentInformation class uses that in a heuristic for the maximum heap size.

We should consolidate the logic in the Hardware class and call it from the EnvironmentInformation.