[YARN-11482] Fix bug of DRF comparison DominantResourceFairnessComparator2 in fair scheduler

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.4.0, 3.3.6
• Fix Version/s: 3.4.0, 3.3.6
• Component/s: fairscheduler
• Labels: pull-request-available
• Target Version/s: 3.4.0, 3.3.6
• Hadoop Flags: Reviewed
• Assignee: Xiaoqiao He
• Reporter: Xiaoqiao He
• Created: 28/Apr/23 03:22
• Updated: 28/Jan/24 01:00
• Resolved: 29/Apr/23 03:20

Description

DominantResourceFairnessComparator2 was using wrong resource info to get if one queue is needy or not now. We should fix it.

      boolean s1Needy = resourceInfo1[dominant1].getValue() <
          minShareInfo1[dominant1].getValue();
      boolean s2Needy = resourceInfo1[dominant2].getValue() <
          minShareInfo2[dominant2].getValue();

Issue Links

• links to: GitHub Pull Request #5607