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Update scaling polling interval

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Polls every 100 ms instead of every 50ms for use with a new
faas-netes PR:

https://github.com/openfaas/faas-netes/pull/726

The call is much faster now, so this request should me made
at a lower frequency.

Also adds error handling for URL building in the external
service query code.

Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>
This commit is contained in:
Alex Ellis (OpenFaaS Ltd) 2020-12-10 13:23:56 +00:00 committed by Alex Ellis
parent 3170d97bb5
commit 4ced7cacd0
2 changed files with 5 additions and 3 deletions
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2
gateway/main.go
View File

@ -137,7 +137,7 @@ func main() {
scalingConfig := scaling.ScalingConfig{ scalingConfig := scaling.ScalingConfig{
MaxPollCount: uint(1000), MaxPollCount: uint(1000),
SetScaleRetries: uint(20), SetScaleRetries: uint(20),
FunctionPollInterval: time.Millisecond * 50, FunctionPollInterval: time.Millisecond * 100,
CacheExpiry: time.Second * 5, // freshness of replica values before going stale CacheExpiry: time.Second * 5, // freshness of replica values before going stale
ServiceQuery: externalServiceQuery, ServiceQuery: externalServiceQuery,
} }

6
gateway/plugin/external.go
View File

@ -63,14 +63,16 @@ func (s ExternalServiceQuery) GetReplicas(serviceName, serviceNamespace string)
urlPath := fmt.Sprintf("%ssystem/function/%s?namespace=%s", s.URL.String(), serviceName, serviceNamespace) urlPath := fmt.Sprintf("%ssystem/function/%s?namespace=%s", s.URL.String(), serviceName, serviceNamespace)
req, _ := http.NewRequest(http.MethodGet, urlPath, nil) req, err := http.NewRequest(http.MethodGet, urlPath, nil)
if err != nil {
return emptyServiceQueryResponse, err
}
if s.AuthInjector != nil { if s.AuthInjector != nil {
s.AuthInjector.Inject(req) s.AuthInjector.Inject(req)
} }
res, err := s.ProxyClient.Do(req) res, err := s.ProxyClient.Do(req)
if err != nil { if err != nil {
log.Println(urlPath, err) log.Println(urlPath, err)
} else { } else {