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Add 'balancedweighted' VM allocation algorithm - #14109

Merged

RosiKyu merged 9 commits into

apache:mainfrom

bhouse-nexthop:weighted-placement

Nov 12, 2026

Merged

Add 'balancedweighted' VM allocation algorithm#14109
RosiKyu merged 9 commits into
apache:mainfrom
bhouse-nexthop:weighted-placement

Commits on Oct 26, 2026
- Add a DAO method to count VMs per host
  bhouse-nexthop
  committed
  4050174
- Track a moving average of real host utilisation
  bhouse-nexthop
  committed
  171127d
- Add 'balancedweighted' VM allocation algorithm
  bhouse-nexthop
  committed
  fdd69dd
- Fix three defects found in review of the weighted scoring
  bhouse-nexthop
  committed
  3ff6cf8
- Address the rest of the weighted scoring review
  bhouse-nexthop
  committed
  3a57e6e
- Address review feedback on the weighted allocation algorithm
  bhouse-nexthop
  committed
  f831f0b
- Hold back hosts with a backlog of VMs still starting
  bhouse-nexthop
  committed
  fc1ffc6
- Rank each candidate host once, however many tags it carries
  bhouse-nexthop
  committed
  5acc477
Commits on Nov 10, 2026
- Let WeightedHostScorer implement HostScoringWeights
  bhouse-nexthop
  committed
  d7b9514