1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
package server
import (
"errors"
odysseus "github.com/odysseus/odysseus-protocol/gen/proto/go/base/v1"
omanager "github.com/odysseus/odysseus-protocol/gen/proto/go/nodemanager/v1"
log "github.com/sirupsen/logrus"
"sync"
"time"
)
type dispatchTask struct {
worker *Worker
task *odysseus.TaskContent
status TaskStatus
ack chan interface{}
errCh chan error
mux sync.Mutex
result chan *omanager.SubmitTaskResult
}
func newDispatchTask(w *Worker, task *odysseus.TaskContent) *dispatchTask {
return &dispatchTask{
worker: w,
task: task,
status: TASK_CREATE,
ack: make(chan interface{}, 1),
errCh: make(chan error, 1),
result: make(chan *omanager.SubmitTaskResult, 1),
}
}
func (d *dispatchTask) dispatched(errCh chan error, wm *WorkerManager) {
tm := time.NewTicker(time.Second * 5)
defer tm.Stop()
d.setStatus(TASK_WAIT_ACK)
select {
case ackMsg, ok := <-d.ack:
if !ok {
d.errCh <- errors.New("ack channel closed")
} else {
msg := ackMsg.(*omanager.SubmitTaskAck)
log.WithFields(log.Fields{
"canExecute": msg.CanExecute,
"task-id": msg.TaskId,
"bootup-time": msg.BootUpTime,
"queue-time": msg.QueueWaitTime,
"execute-time": msg.ExecuteTime,
}).Debug("got ack message")
if !msg.CanExecute {
d.errCh <- errors.New("worker can't execute task")
} else {
d.setStatus(TASK_ACKED)
d.errCh <- nil
}
}
case <-tm.C:
d.errCh <- errors.New("ack timeout")
case err := <-errCh:
d.errCh <- err
}
if d.status == TASK_ACKED {
// wait timeout or got result
d.finalize(wm)
}
return
}
func (d *dispatchTask) setAck(msg *omanager.SubmitTaskAck) {
select {
case d.ack <- msg:
default:
}
}
func (d *dispatchTask) setResult(result *omanager.SubmitTaskResult) {
select {
case d.result <- result:
default:
}
}
func (d *dispatchTask) setStatus(status TaskStatus) {
d.mux.Lock()
d.status = status
d.mux.Unlock()
}
func (d *dispatchTask) finalize(wm *WorkerManager) {
maxExec := d.task.TaskMaxExecTime
if maxExec <= 0 {
maxExec = 300 // set default to 5min.
}
l := log.WithField("task-id", d.task.TaskId)
ticker := time.NewTicker(time.Second * time.Duration(maxExec))
defer ticker.Stop()
var result *omanager.SubmitTaskResult
select {
case <-ticker.C:
l.WithField("worker", d.worker.workerAddr).Info("task timeout")
d.setStatus(TASK_TIMEOUT)
result = &omanager.SubmitTaskResult{
TaskId: d.task.TaskId,
IsSuccessed: false,
TaskExecuteDuration: uint64(maxExec * 1000 * 1000), // 微秒
TaskExecuteError: ErrExecuteTimeout.Error(),
}
case r := <-d.result:
l.WithField("worker", d.worker.workerAddr).Info("task finished")
d.setStatus(TASK_FINISHED)
result = r
}
task := d.task
if task.TaskKind != odysseus.TaskKind_StandardTask && d.worker.online == true {
_ = wm.AddWorkerSingle(d.worker)
}
_, err := wm.taskResult(d.worker, task, result)
if err != nil {
log.WithError(err).Error("task result failed")
}
if task.TaskKind != odysseus.TaskKind_StandardTask {
wm.Payment(task)
}
}