[AMBARI-19236] Stackadvisor: incorrect recommendations when only one of two dependencies was changed

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 2.4.0
• Fix Version/s: 2.5.0
• Component/s: ambari-server
• Assignee: Vitaly Brodetskyi
• Reporter: Vitaly Brodetskyi
• Created: 19/Dec/16 14:31
• Updated: 19/Dec/16 17:45
• Resolved: 19/Dec/16 16:05

Description

For example:
'mapreduce.map.memory.mb' depends on 'yarn.scheduler.maximum-allocation-mb' and 'yarn.scheduler.minimum-allocation-mb'.

The case:
'yarn.scheduler.minimum-allocation-mb' was changed, but 'yarn.scheduler.maximum-allocation-mb' not. In this case recommendations will use provided value for the first property and recommended value for the second. 'mapreduce.map.memory.mb' will be recalculated incorrectly.

Expected:
Use the provided values for both properties.

Issue Links

• links to: review request