-
Notifications
You must be signed in to change notification settings - Fork 792
/
retry.go
90 lines (78 loc) · 2.91 KB
/
retry.go
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
// Copyright (c) 2020 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package execution
import (
"math"
"time"
"github.com/uber/cadence/common"
"github.com/uber/cadence/common/backoff"
)
func getBackoffInterval(
now time.Time,
expirationTime time.Time,
currAttempt int32,
maxAttempts int32,
initInterval int32,
maxInterval int32,
backoffCoefficient float64,
failureReason string,
nonRetriableErrors []string,
) time.Duration {
if maxAttempts == 0 && expirationTime.IsZero() {
return backoff.NoBackoff
}
if maxAttempts > 0 && currAttempt >= maxAttempts-1 {
// currAttempt starts from 0.
// MaximumAttempts is the total attempts, including initial (non-retry) attempt.
return backoff.NoBackoff
}
nextInterval := int64(float64(initInterval) * math.Pow(backoffCoefficient, float64(currAttempt)))
if nextInterval <= 0 {
// math.Pow() could overflow
if maxInterval > 0 {
nextInterval = int64(maxInterval)
} else {
return backoff.NoBackoff
}
}
if maxInterval > 0 && nextInterval > int64(maxInterval) {
// cap next interval to MaxInterval
nextInterval = int64(maxInterval)
}
backoffInterval := time.Duration(nextInterval) * time.Second
nextScheduleTime := now.Add(backoffInterval)
if !expirationTime.IsZero() && nextScheduleTime.After(expirationTime) {
return backoff.NoBackoff
}
// make sure we don't retry size exceeded error reasons. Note that FailureReasonFailureDetailsExceedsLimit is retryable.
if failureReason == common.FailureReasonCancelDetailsExceedsLimit ||
failureReason == common.FailureReasonCompleteResultExceedsLimit ||
failureReason == common.FailureReasonHeartbeatExceedsLimit ||
failureReason == common.FailureReasonDecisionBlobSizeExceedsLimit {
return backoff.NoBackoff
}
// check if error is non-retriable
for _, er := range nonRetriableErrors {
if er == failureReason {
return backoff.NoBackoff
}
}
return backoffInterval
}