[AMBARI-19737] Add a validation check in HSI about Capacity Scheduler preemption requirements

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.4.2
• Fix Version/s: 2.5.0
• Component/s: ambari-server
• Assignee: Swapan Shridhar
• Reporter: Swapan Shridhar
• Due: 26/Jan/17
• Created: 26/Jan/17 23:44
• Updated: 30/Mar/17 19:47
• Resolved: 27/Jan/17 19:05

Description

Capacity Scheduler preemption is not enabled by default in HDP. Enabling it affects the entire cluster and LLAP is of concern in the bug.

Requirement:

• Add a validation check about CS preemption configuration, while LLAP is not enabled.

Message:

Enabling YARN config 'yarn.resourcemanager.scheduler.monitor.enable' is recommended if enabling LLAP, to ensure it is able to get cluster capacity.

If CS preemption is enabled, no validation check required.

-> Also, uncommenting and fixing the test code in test_stack_advisor::test_validateHiveInteractiveSiteConfigurations().

Issue Links

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