File size: 2,184 Bytes
95d599c | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 | // _ _
// __ _____ __ ___ ___ __ _| |_ ___
// \ \ /\ / / _ \/ _` \ \ / / |/ _` | __/ _ \
// \ V V / __/ (_| |\ V /| | (_| | || __/
// \_/\_/ \___|\__,_| \_/ |_|\__,_|\__\___|
//
// Copyright © 2016 - 2025 Weaviate B.V. All rights reserved.
//
// CONTACT: hello@weaviate.io
//
package replication
import (
"errors"
"fmt"
"github.com/weaviate/weaviate/cluster/proto/api"
"github.com/weaviate/weaviate/cluster/schema"
)
var (
ErrAlreadyExists = errors.New("already exists")
ErrNodeNotFound = errors.New("node not found")
ErrClassNotFound = errors.New("class not found")
ErrShardNotFound = errors.New("shard not found")
)
// ValidateReplicationReplicateShard validates that c is valid given the current state of the schema read using schemaReader
func ValidateReplicationReplicateShard(schemaReader schema.SchemaReader, c *api.ReplicationReplicateShardRequest) error {
if c.Uuid == "" {
return fmt.Errorf("uuid is required: %w", ErrBadRequest)
}
if c.SourceNode == c.TargetNode {
return fmt.Errorf("source and target node are the same: %w", ErrBadRequest)
}
classInfo := schemaReader.ClassInfo(c.SourceCollection)
// ClassInfo doesn't return an error, so the only way to know if the class exist is to check if the Exists
// boolean is not set to default value
if !classInfo.Exists {
return fmt.Errorf("collection %s does not exists: %w", c.SourceCollection, ErrClassNotFound)
}
// Ensure source shard replica exists and target replica doesn't already exist
nodes, err := schemaReader.ShardReplicas(c.SourceCollection, c.SourceShard)
if err != nil {
return err
}
var foundSource bool
var foundTarget bool
for _, n := range nodes {
if n == c.SourceNode {
foundSource = true
}
if n == c.TargetNode {
foundTarget = true
}
}
if !foundSource {
return fmt.Errorf("could not find shard %s for collection %s on source node %s: %w", c.SourceShard, c.SourceCollection, c.SourceNode, ErrNodeNotFound)
}
if foundTarget {
return fmt.Errorf("shard %s already exist for collection %s on target node %s: %w", c.SourceShard, c.SourceCollection, c.SourceNode, ErrAlreadyExists)
}
return nil
}
|