mirror of
https://github.com/chrislusf/seaweedfs
synced 2024-05-09 04:50:47 +02:00
86 lines
2 KiB
Go
86 lines
2 KiB
Go
package main
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import (
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"flag"
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"fmt"
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"github.com/chrislusf/seaweedfs/weed/glog"
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"github.com/chrislusf/seaweedfs/weed/pb"
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"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
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"google.golang.org/grpc"
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"strconv"
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"time"
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)
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var (
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dir = flag.String("dir", "/tmp", "directory to create files")
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n = flag.Int("n", 100, "the number of metadata")
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tailFiler = flag.String("filer", "localhost:8888", "the filer address")
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isWrite = flag.Bool("write", false, "only write")
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writeInterval = flag.Duration("writeInterval", 0, "write interval, e.g., 1s")
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)
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func main() {
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flag.Parse()
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if *isWrite {
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startGenerateMetadata()
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return
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}
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expected := 0
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startSubscribeMetadata(func(event *filer_pb.SubscribeMetadataResponse) error {
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if event.Directory != *dir {
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return nil
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}
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name := event.EventNotification.NewEntry.Name
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glog.V(0).Infof("=> %s ts:%+v", name, time.Unix(0, event.TsNs))
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id := name[4:]
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if x, err := strconv.Atoi(id); err == nil {
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if x != expected {
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return fmt.Errorf("Expected file%d Actual %s\n", expected, name)
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}
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expected++
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} else {
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return err
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}
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time.Sleep(10 * time.Millisecond)
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return nil
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})
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}
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func startGenerateMetadata() {
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pb.WithFilerClient(false, pb.ServerAddress(*tailFiler), grpc.WithInsecure(), func(client filer_pb.SeaweedFilerClient) error {
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for i := 0; i < *n; i++ {
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name := fmt.Sprintf("file%d", i)
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glog.V(0).Infof("write %s/%s", *dir, name)
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if err := filer_pb.CreateEntry(client, &filer_pb.CreateEntryRequest{
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Directory: *dir,
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Entry: &filer_pb.Entry{
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Name: name,
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},
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}); err != nil {
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fmt.Printf("create entry %s: %v\n", name, err)
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return err
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}
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if *writeInterval > 0 {
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time.Sleep(*writeInterval)
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}
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}
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return nil
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})
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}
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func startSubscribeMetadata(eachEntryFunc func(event *filer_pb.SubscribeMetadataResponse) error) {
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tailErr := pb.FollowMetadata(pb.ServerAddress(*tailFiler), grpc.WithInsecure(), "tail", 0, *dir, nil, 0, 0, 0, eachEntryFunc, pb.TrivialOnError)
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if tailErr != nil {
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fmt.Printf("tail %s: %v\n", *tailFiler, tailErr)
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}
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}
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