feat(diskless): add managed replicas testing infrastructure and partition reassignment#505
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For diskless topics, partition reassignment now completes immediately without the staged process (addingReplicas/removingReplicas). Since data is stored in object storage rather than local disk, there is nothing to sync between replicas. Changes: - Skip setting targetRemoving/targetAdding for diskless topics - Use target replicas directly instead of merged replica list - Update tests to expect immediate completion (no ongoing reassignment)
Add ManagedReplicasCluster test class to InklessClusterTest with: - 2-broker cluster with rack assignments (az1, az2) - createDisklessTopicWithManagedReplicas: verifies RF=2, rack-aware placement (one replica per rack), ISR correctness, produce/consume - produceAndConsumeWithClientAZ: tests AZ-aware routing via client ID - nonDisklessTopicDoesNotGetManagedReplicas: verifies non-diskless topics are not affected by managed replicas
Add docker compose overlay for testing diskless managed replicas: - docker-compose.managed-replicas.yml: 2-broker cluster with rack assignments (az1, az2) enabling diskless.managed.rf.enable - README.md: complete test procedure for verifying RF=2, produce/consume, AZ-aware routing via client ID, and prometheus metrics - Makefile: add managed-replicas target
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Completing Diskless managed-replicas feature:
Details
Controller: Immediate Partition Reassignment
Integration Tests
Docker Demo
Test plan