package main import ( "flag" "fmt" "io" "log" "os" "github.com/golang/protobuf/proto" "github.com/seaweedfs/seaweedfs/weed/filer" "github.com/seaweedfs/seaweedfs/weed/pb/filer_pb" "github.com/seaweedfs/seaweedfs/weed/util" ) var ( logdataFile = flag.String("logdata", "", "log data file saved under "+filer.SystemLogDir) ) func main() { flag.Parse() dst, err := os.OpenFile(*logdataFile, os.O_RDONLY, 0644) if err != nil { log.Fatalf("failed to open %s: %v", *logdataFile, err) } defer dst.Close() err = walkLogEntryFile(dst) if err != nil { log.Fatalf("failed to visit %s: %v", *logdataFile, err) } } func walkLogEntryFile(dst *os.File) error { sizeBuf := make([]byte, 4) for { if n, err := dst.Read(sizeBuf); n != 4 { if err == io.EOF { return nil } return err } size := util.BytesToUint32(sizeBuf) data := make([]byte, int(size)) if n, err := dst.Read(data); n != len(data) { return err } logEntry := &filer_pb.LogEntry{} err := proto.Unmarshal(data, logEntry) if err != nil { log.Printf("unexpected unmarshal filer_pb.LogEntry: %v", err) return nil } event := &filer_pb.SubscribeMetadataResponse{} err = proto.Unmarshal(logEntry.Data, event) if err != nil { log.Printf("unexpected unmarshal filer_pb.SubscribeMetadataResponse: %v", err) return nil } fmt.Printf("event: %+v\n", event) } }