TransferReplica()

This operation transfers a number of replicas of a collection from one resource group to another.

func (c *Client) TransferReplica(ctx context.Context, opt TransferReplicaOption, callOptions ...grpc.CallOption) error

Request Syntax

option := milvusclient.NewTransferReplicaOption(collectionName, sourceGroup, targetGroup, replicaNum).
    WithDBName(dbName)

err := client.TransferReplica(ctx, option)

PARAMETERS:

• collectionName (string)

  The name of the target collection.

• sourceGroup (string)

  The name of the source resource group.

• targetGroup (string)

  The name of the target resource group.

• replicaNum (int64)

  The number of replicas to transfer.

BUILDER METHODS:

• NewTransferReplicaOption(collectionName, sourceGroup, targetGroup string, replicaNum int64)

  Creates a new option to transfer replicas between resource groups.

• WithDBName(dbName string)

  Specifies the database to use for the operation.

RETURN TYPE:

error

RETURNS:

Returns nil on success, or an error describing what went wrong.

EXCEPTIONS:

• error

  Check err != nil for failure details.

Example

import (
    "context"

    "github.com/milvus-io/milvus/client/v3/milvusclient"
)

ctx, cancel := context.WithCancel(context.Background())
defer cancel()

cli, err := milvusclient.New(ctx, &milvusclient.ClientConfig{
    Address: milvusAddr,
})
if err != nil {
    // handle error
}
defer cli.Close(ctx)

err = cli.TransferReplica(ctx, milvusclient.NewTransferReplicaOption("quick_setup", "rg1", "rg2", 1))
if err != nil {
    // handle error
}