[YARN-2766] ApplicationHistoryManager is expected to return a sorted list of apps/attempts/containers

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.6.0
• Fix Version/s: 2.7.0, 2.6.1, 3.0.0-alpha1
• Component/s: timelineserver
• Labels: 2.6.1-candidate
• Target Version/s: 2.7.0
• Hadoop Flags: Reviewed
• Assignee: Robert Kanter
• Reporter: Robert Kanter
• Created: 29/Oct/14 04:56
• Updated: 30/Aug/16 01:30
• Resolved: 13/Nov/14 21:55

Description

TestApplicationHistoryClientService.testContainers and TestApplicationHistoryClientService.testApplicationAttempts both fail because the test assertions are assuming a returned Collection is in a certain order. The collection comes from a HashMap, so the order is not guaranteed, plus, according to this page, there are situations where the iteration order of a HashMap will be different between Java 7 and 8.

We should fix the test code to not assume a specific ordering.

Issue Links

• relates to: HADOOP-11090 [Umbrella] Support Java 8 in Hadoop