package main import ( "context" "errors" "flag" "fmt" "github.com/chrislusf/seaweedfs/weed/operation" "github.com/chrislusf/seaweedfs/weed/pb" "github.com/chrislusf/seaweedfs/weed/pb/volume_server_pb" "github.com/chrislusf/seaweedfs/weed/security" "github.com/chrislusf/seaweedfs/weed/util" "google.golang.org/grpc" "io" ) var ( volumeServer = flag.String("volumeServer", "localhost:8080", "a volume server") volumeId = flag.Int("volumeId", -1, "a volume id to stream read") grpcDialOption grpc.DialOption ) func main() { flag.Parse() util.LoadConfiguration("security", false) grpcDialOption = security.LoadClientTLS(util.GetViper(), "grpc.client") vid := uint32(*volumeId) eachNeedleFunc := func(resp *volume_server_pb.ReadAllNeedlesResponse) error { fmt.Printf("%d,%x%08x %d\n", resp.VolumeId, resp.NeedleId, resp.Cookie, len(resp.NeedleBlob)) return nil } err := operation.WithVolumeServerClient(pb.ServerAddress(*volumeServer), grpcDialOption, func(vs volume_server_pb.VolumeServerClient) error { ctx, cancel := context.WithCancel(context.Background()) defer cancel() copyFileClient, err := vs.ReadAllNeedles(ctx, &volume_server_pb.ReadAllNeedlesRequest{ VolumeIds: []uint32{vid}, }) if err != nil { return err } for { resp, err := copyFileClient.Recv() if errors.Is(err, io.EOF) { break } if err != nil { return err } if err = eachNeedleFunc(resp); err != nil { return err } } return nil }) if err != nil { fmt.Printf("read %s: %v\n", *volumeServer, err) } }