Kashif Faraz 71b133f3ff

Add RoundRobinServerSelector to speed up segment assignments (#13367) ...

Segment assignments can take very long due to the strategy cost computation
for a large number of segments. This commit allows segment assignments to be
done in a round-robin fashion within a tier. Only segment balancing takes cost-based
decisions to move segments around.

Changes
- Add dynamic config `useRoundRobinSegmentAssignment` with default value false
- Add `RoundRobinServerSelector`. This does not implement the `BalancerStrategy`
as it does not conform to that contract and may also be used in conjunction with a
strategy (round-robin for `RunRules` and a cost strategy for `BalanceSegments`)
- Drops are still cost-based even when round-robin assignment is enabled.

2022-11-16 20:05:17 +05:30

..

src

Add RoundRobinServerSelector to speed up segment assignments (#13367)

2022-11-16 20:05:17 +05:30

pom.xml

Druid Catalog basics (#13165)

2022-11-12 15:30:22 -08:00