/
generate.go
77 lines (69 loc) · 1.56 KB
/
generate.go
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package main
import (
"fmt"
"io"
"math/rand"
"os"
"time"
"github.com/pachyderm/pachyderm/src/client"
"github.com/pachyderm/pachyderm/src/server/pkg/cmdutil"
"github.com/spf13/cobra"
)
func item() string {
return [3]string{"apple", "banana", "orange"}[rand.Intn(3)]
}
func amount() string {
return fmt.Sprintf("%d", rand.Intn(9)+1)
}
func line() string {
return fmt.Sprintf("%s\t%s\n", item(), amount())
}
type reader struct {
lines int
}
func (r *reader) Read(p []byte) (int, error) {
size := 0
for ; r.lines != 0; r.lines-- {
line := line()
if len(line) > len(p[size:]) {
break
}
copy(p[size:], line)
size += len(line)
}
if r.lines == 0 {
return size, io.EOF
}
return size, nil
}
func main() {
var commits int
var lines int
cmd := &cobra.Command{
Use: os.Args[0],
Short: "Generate pfs traffic.",
Long: "Generate pfs traffic.",
Run: cmdutil.RunFixedArgs(0, func(args []string) error {
rand.Seed(time.Now().UnixNano())
client, err := client.NewFromAddress("0.0.0.0:30650")
if err != nil {
return err
}
for i := 0; i < commits; i++ {
if _, err := client.StartCommit("data", "master"); err != nil {
return err
}
if _, err := client.PutFile("data", "master", "sales", &reader{lines}); err != nil {
return err
}
if err := client.FinishCommit("data", "master"); err != nil {
return err
}
}
return nil
}),
}
cmd.Flags().IntVarP(&commits, "commits", "c", 100, "commits to write")
cmd.Flags().IntVarP(&lines, "lines", "l", 100, "lines to write for each commit")
cmd.Execute()
}