[SPARK-21672] Remove SHS-specific application / attempt data structures - ASF JIRA

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Details

Type: Improvement
Status: Resolved
Priority: Minor
Resolution: Fixed
Affects Version/s: 2.3.0
Fix Version/s: 2.3.0
Component/s: Spark Core
Labels:
None

Description

The SHS has its own view of what applications and attempts look like (ApplicationHistoryInfo and ApplicationAttemptInfo, declared in ApplicationHistoryProvider.scala).

The SHS pages actually use the public API types to represent applications; these types are only used in some internal code paths that should be cleaned up.