[SPARK-28638] Task summary metrics are wrong when there are running tasks - ASF JIRA

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Details

Type: Bug
Status: Resolved
Priority: Major
Resolution: Fixed
Affects Version/s: 3.0.0
Fix Version/s: 2.4.4, 3.0.0
Component/s: Web UI
Labels:
None

Description

Currently, on requesting summary metrics, cached data are returned if the current number of successful tasks is the same as the cached data.
However, the number of successful tasks is wrong. In `AppStatusStore`, the KVStore is ElementTrackingStore, instead of InMemoryStore. This PR is to fix the class matching.