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// _ _
// __ _____ __ ___ ___ __ _| |_ ___
// \ \ /\ / / _ \/ _` \ \ / / |/ _` | __/ _ \
// \ V V / __/ (_| |\ V /| | (_| | || __/
// \_/\_/ \___|\__,_| \_/ |_|\__,_|\__\___|
//
// Copyright © 2016 - 2024 Weaviate B.V. All rights reserved.
//
// CONTACT: [email protected]
//
package replica
import (
"fmt"
"github.com/weaviate/weaviate/entities/models"
"github.com/weaviate/weaviate/entities/replication"
)
type nodeCounter interface {
NodeCount() int
}
func ValidateConfig(class *models.Class, globalCfg replication.GlobalConfig) error {
if class.ReplicationConfig == nil {
class.ReplicationConfig = &models.ReplicationConfig{Factor: int64(globalCfg.MinimumFactor)}
return nil
}
if class.ReplicationConfig.Factor > 0 && class.ReplicationConfig.Factor < int64(globalCfg.MinimumFactor) {
return fmt.Errorf("invalid replication factor: setup requires a minimum replication factor of %d: got %d",
globalCfg.MinimumFactor, class.ReplicationConfig.Factor)
}
if class.ReplicationConfig.Factor < 1 {
class.ReplicationConfig.Factor = int64(globalCfg.MinimumFactor)
}
return nil
}
func ValidateConfigUpdate(old, updated *models.Class, nodeCounter nodeCounter) error {
// This is not possible if schema is being updated via by a client.
// But for a test object that wasn't created by a client, it is.
if old.ReplicationConfig == nil {
old.ReplicationConfig = &models.ReplicationConfig{Factor: 1}
}
if updated.ReplicationConfig == nil {
updated.ReplicationConfig = &models.ReplicationConfig{Factor: 1}
}
if old.ReplicationConfig.Factor != updated.ReplicationConfig.Factor {
nc := nodeCounter.NodeCount()
if int(updated.ReplicationConfig.Factor) > nc {
return fmt.Errorf("cannot scale to %d replicas, cluster has only %d nodes",
updated.ReplicationConfig.Factor, nc)
}
}
return nil
}
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