TransferReplica()

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

Status TransferReplica(const TransferReplicaRequest& request)

Request Syntax

auto request = TransferReplicaRequest()
    .WithDatabaseName(db_name)
    .WithCollectionName(collection_name)
    .WithSourceGroup(source_group)
    .WithTargetGroup(target_group)
    .WithNumReplicas(num);

REQUEST METHODS:

• WithDatabaseName(const std::string& db_name)

  Sets the database name in which the collection is created.

• WithCollectionName(const std::string& collection_name)

  Sets the name of the collection.

• WithSourceGroup(const std::string& source_group)

  Set the name of the source resource group.

• WithTargetGroup(const std::string& target_group)

  Set the name of the target resource group.

• WithNumReplicas(int64_t num)

  Set the number of replicas to transfer.

RETURNS:

Status

Check status.IsOk() to confirm success.

EXCEPTIONS:

• StatusCode

  Check status.Code() and status.Message() for error details.

Example

#include "milvus/MilvusClientV2.h"
auto client = milvus::MilvusClientV2::Create();

milvus::ConnectParam connect_param{"http://localhost:19530", "root:Milvus"};
auto status = client->Connect(connect_param);
if (!status.IsOk()) {
    std::cout << status.Message() << std::endl;
}

status = client->TransferReplica(
    milvus::TransferReplicaRequest()
        .WithCollectionName("my_collection")
        .WithSourceGroup("source_group")
        .WithTargetGroup("target_group")
        .WithNumReplicas(1));
if (!status.IsOk()) {
    std::cout << status.Message() << std::endl;
}