ExportSnapshot()

This operation exports a snapshot to object storage. The export runs asynchronously — use GetExportSnapshotState() to monitor progress.

func (c *Client) ExportSnapshot(ctx context.Context, opt ExportSnapshotOption, callOptions ...grpc.CallOption) (int64, error)

Request Syntax

option := milvusclient.NewExportSnapshotOption(name, collectionName, targetS3Path).
    WithDbName(dbName).
    WithExternalSpec(externalSpec).
    WithRequestTimeout(timeout)

jobID, err := cli.ExportSnapshot(ctx, option)

PARAMETERS:

• name (string)

  The name of the snapshot to export.

• collectionName (string)

  The name of the collection the snapshot was taken from.

• targetS3Path (string)

  The object storage path where the snapshot data is exported.

BUILDER METHODS:

• NewExportSnapshotOption(name string, collectionName string, targetS3Path string)

  Creates a new option to export a snapshot.

• WithDbName(dbName string)

  Sets the database name for the collection.

• WithExternalSpec(externalSpec string)

  Sets the external storage specification (e.g., custom endpoint credentials) used for the export.

• WithRequestTimeout(timeout time.Duration)

  Sets the timeout for the export request. Default: 120 * time.Second.

RETURN TYPE:

int64, error

RETURNS:

The export job ID on success. Use this ID with GetExportSnapshotState() to track the export progress. Returns an error if the operation fails.

ERROR HANDLING:

• error

  Check err != nil for failure details.

Example

import (
    "context"
    "fmt"

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

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

milvusAddr := "127.0.0.1:19530"

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

defer cli.Close(ctx)

jobID, err := cli.ExportSnapshot(ctx, milvusclient.NewExportSnapshotOption("my_snapshot", "quick_setup", "s3://my-bucket/export/"))
if err != nil {
    // handle error
}

fmt.Printf("Export job started: %d\n", jobID)