riotpiaole
173a4935ab
The default "longhorn" StorageClass requests 3 replicas, but the homelab cluster currently has only 2 schedulable nodes, so the 3rd replica could never be scheduled and volumes stayed permanently degraded. Adds longhorn-kafka (numberOfReplicas: 2) and reduces broker PVC size so 3 broker volumes' replicas fit within each node's remaining Longhorn scheduling headroom. Revert to "longhorn" once a 3rd node joins.
26 lines
880 B
YAML
26 lines
880 B
YAML
clusterName: kmsvc
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namespace: sqs
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nodePool:
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replicas: 3
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storage:
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class: longhorn-kafka
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# Longhorn's per-node scheduling budget on the current 2-node cluster has
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# only ~36Gi of headroom left (other PVCs already reserve the rest), and
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# each node hosts one replica of all 3 broker volumes -- so 3 * sizeGi
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# must fit in that headroom. Revisit once the 3rd node joins.
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sizeGi: 10
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resources:
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memory: 5Gi
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cpu: "2"
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heapOpts: "-Xms2g -Xmx2g"
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# design.md §7: 2 of 3 pods land on talos-cp-1 today; a 3rd physical node
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# is planned later. Anti-affinity keeps the scheduler spreading pods as
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# evenly as the current node count allows, and will auto-rebalance once
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# the new node joins — no replica/quorum change needed at that point.
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antiAffinityTopologyKey: kubernetes.io/hostname
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kafka:
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replicationFactor: 3
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minInsyncReplicas: 2
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