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This operation loads the data of a specific collection into memory.

loadCollection(data): Promise<ResStatus>

Request Syntax

    collection_name: string,
    refresh?: boolean,
    replica_number?: number,
    resource_groups?: string[],
    timeout?: number


  • collection_name (string) -


    The name of a collection.

  • refresh (boolean) -

    Whether to refresh the load status of an already loaded collection.

  • replica_number (number) -

    The number of replicas of the collection to load.

  • resource_groups (string[]) -

    The number of resource groups in the collection to load.

  • timeout (number) -

    The timeout duration for this operation.

    Setting this to None indicates that this operation timeouts when any response returns or error occurs.

RETURNS Promise<ResStatus>

This method returns a promise that resolves to a ResStatus object.

    code: number,
    error_code: string | number,
    reason: string


  • code (number) -

    A code that indicates the operation result. It remains 0 if this operation succeeds.

  • error_code (string | number) -

    An error code that indicates an occurred error. It remains Success if this operation succeeds.

  • reason (string) -

    The reason that indicates the reason for the reported error. It remains an empty string if this operation succeeds.


const milvusClient = new milvusClient(MILUVS_ADDRESS);
 const resStatus = await milvusClient.loadCollection({ collection_name: 'my_collection' });


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