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retryer.go
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/
retryer.go
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package aws
import (
"time"
"github.com/aws/aws-sdk-go/aws/client"
"github.com/aws/aws-sdk-go/aws/request"
)
const (
metadataService = "ec2metadata"
maxMetadataServiceRetries = 8
)
type clampedRetryer struct {
client.DefaultRetryer
maxRetryInterval time.Duration
}
func NewClampedRetryer(maxRetries int, maxRetryInterval time.Duration) request.Retryer {
return clampedRetryer{
DefaultRetryer: client.DefaultRetryer{NumMaxRetries: maxRetries},
maxRetryInterval: maxRetryInterval,
}
}
func (retryer clampedRetryer) ShouldRetry(r *request.Request) bool {
if r.ClientInfo.ServiceName == metadataService {
return r.RetryCount < maxMetadataServiceRetries
}
return retryer.DefaultRetryer.ShouldRetry(r)
}
func (retryer clampedRetryer) RetryRules(r *request.Request) time.Duration {
baseInterval := retryer.DefaultRetryer.RetryRules(r)
if baseInterval < retryer.maxRetryInterval {
return baseInterval
}
return retryer.maxRetryInterval
}