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asynq/tools/asynqmon/cmd/workers.go
2020-02-22 21:21:55 -08:00

76 lines
1.8 KiB
Go

// Copyright 2020 Kentaro Hibino. All rights reserved.
// Use of this source code is governed by a MIT license
// that can be found in the LICENSE file.
package cmd
import (
"fmt"
"io"
"os"
"sort"
"github.com/go-redis/redis/v7"
"github.com/hibiken/asynq/internal/rdb"
"github.com/spf13/cobra"
"github.com/spf13/viper"
)
// workersCmd represents the workers command
var workersCmd = &cobra.Command{
Use: "workers",
Short: "Shows all running workers information",
Long: `Workers (asynqmon workers) will show all running workers information.
The command shows the follwoing for each worker:
* Process in which the worker is running
* ID of the task worker is processing
* Type of the task worker is processing
* Payload of the task worker is processing
* Queue that the task was pulled from.
* Time the worker started processing the task`,
Args: cobra.NoArgs,
Run: workers,
}
func init() {
rootCmd.AddCommand(workersCmd)
}
func workers(cmd *cobra.Command, args []string) {
r := rdb.NewRDB(redis.NewClient(&redis.Options{
Addr: viper.GetString("uri"),
DB: viper.GetInt("db"),
Password: viper.GetString("password"),
}))
workers, err := r.ListWorkers()
if err != nil {
fmt.Println(err)
os.Exit(1)
}
if len(workers) == 0 {
fmt.Println("No workers")
return
}
// sort by started timestamp or ID.
sort.Slice(workers, func(i, j int) bool {
x, y := workers[i], workers[j]
if x.Started != y.Started {
return x.Started.Before(y.Started)
}
return x.ID.String() < y.ID.String()
})
cols := []string{"Process", "ID", "Type", "Payload", "Queue", "Started"}
printRows := func(w io.Writer, tmpl string) {
for _, wk := range workers {
fmt.Fprintf(w, tmpl,
fmt.Sprintf("%s:%d", wk.Host, wk.PID), wk.ID, wk.Type, wk.Payload, wk.Queue, timeAgo(wk.Started))
}
}
printTable(cols, printRows)
}