mirror of
https://github.com/chrislusf/seaweedfs
synced 2024-05-06 19:40:51 +02:00
76 lines
1.4 KiB
Go
76 lines
1.4 KiB
Go
package main
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import (
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"flag"
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"fmt"
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"io"
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"log"
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"os"
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"google.golang.org/protobuf/proto"
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"github.com/seaweedfs/seaweedfs/weed/filer"
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"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
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"github.com/seaweedfs/seaweedfs/weed/util"
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)
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var (
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logdataFile = flag.String("logdata", "", "log data file saved under "+filer.SystemLogDir)
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)
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func main() {
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flag.Parse()
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dst, err := os.OpenFile(*logdataFile, os.O_RDONLY, 0644)
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if err != nil {
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log.Fatalf("failed to open %s: %v", *logdataFile, err)
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}
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defer dst.Close()
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err = walkLogEntryFile(dst)
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if err != nil {
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log.Fatalf("failed to visit %s: %v", *logdataFile, err)
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}
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}
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func walkLogEntryFile(dst *os.File) error {
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sizeBuf := make([]byte, 4)
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for {
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if n, err := dst.Read(sizeBuf); n != 4 {
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if err == io.EOF {
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return nil
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}
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return err
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}
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size := util.BytesToUint32(sizeBuf)
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data := make([]byte, int(size))
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if n, err := dst.Read(data); n != len(data) {
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return err
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}
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logEntry := &filer_pb.LogEntry{}
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err := proto.Unmarshal(data, logEntry)
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if err != nil {
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log.Printf("unexpected unmarshal filer_pb.LogEntry: %v", err)
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return nil
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}
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event := &filer_pb.SubscribeMetadataResponse{}
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err = proto.Unmarshal(logEntry.Data, event)
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if err != nil {
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log.Printf("unexpected unmarshal filer_pb.SubscribeMetadataResponse: %v", err)
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return nil
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}
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fmt.Printf("event: %+v\n", event)
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}
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}
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