8056b702ba
* feat(balance): add replica placement validation for volume moves When the volume balance detection proposes moving a volume, validate that the move does not violate the volume's replication policy (e.g., ReplicaPlacement=010 requires replicas on different racks). If the preferred destination violates the policy, fall back to score-based planning; if that also violates, skip the volume entirely. - Add ReplicaLocation type and VolumeReplicaMap to ClusterInfo - Build replica map from all volumes before collection filtering - Port placement validation logic from command_volume_fix_replication.go - Thread replica map through collectVolumeMetrics call chain - Add IsGoodMove check in createBalanceTask before destination use * address PR review: extract validation closure, add defensive checks - Extract validateMove closure to eliminate duplicated ReplicaLocation construction and IsGoodMove calls - Add defensive check for empty replica map entries (len(replicas) == 0) - Add bounds check for int-to-byte cast on ExpectedReplicas (0-255) * address nitpick: rp test helper accepts *testing.T and fails on error Prevents silent failures from typos in replica placement codes. * address review: add composite replica placement tests (011, 110) Test multi-constraint placement policies where both rack and DC rules must be satisfied simultaneously. * address review: use struct keys instead of string concatenation Replace string-concatenated map keys with typed rackKey/nodeKey structs to eliminate allocations and avoid ambiguity if IDs contain spaces. * address review: simplify bounds check, log fallback error, guard source - Remove unreachable ExpectedReplicas < 0 branch (outer condition already guarantees > 0), fold bounds check into single condition - Log error from planBalanceDestination in replica validation fallback - Return false from IsGoodMove when sourceNodeID not found in existing replicas (inconsistent cluster state) * address review: use slices.Contains instead of hand-rolled helpers Replace isAmongDC and isAmongRack with slices.Contains from the standard library, reducing boilerplate.
29 KiB
29 KiB