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Bump default burst limit for discovery client to 300

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Signed-off-by: Alper Rifat Ulucinar <ulucinar@users.noreply.github.com>

Kubernetes-commit: 534427f5d3134189f49e6811a7642b86cf92c55a
This commit is contained in:
Alper Rifat Ulucinar 2022-03-30 11:19:41 +03:00 committed by Kubernetes Publisher
parent b2097e607c
commit ed7d154cc2
1 changed files with 7 additions and 2 deletions
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9
discovery/discovery_client.go
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@ -52,6 +52,9 @@ const (
// defaultTimeout is the maximum amount of time per request when no timeout has been set on a RESTClient.
// Defaults to 32s in order to have a distinguishable length of time, relative to other timeouts that exist.
defaultTimeout = 32 * time.Second
// defaultBurst is the default burst to be used with the discovery client's token bucket rate limiter
defaultBurst = 300
)
// DiscoveryInterface holds the methods that discover server-supported API groups,
@ -456,12 +459,14 @@ func setDiscoveryDefaults(config *restclient.Config) error {
if config.Timeout == 0 {
config.Timeout = defaultTimeout
}
if config.Burst == 0 && config.QPS < 100 {
// if a burst limit is not already configured and
// an avg. rate of `defaultBurst` qps is not already configured
if config.Burst == 0 && config.QPS < defaultBurst {
// discovery is expected to be bursty, increase the default burst
// to accommodate looking up resource info for many API groups.
// matches burst set by ConfigFlags#ToDiscoveryClient().
// see https://issue.k8s.io/86149
config.Burst = 100
config.Burst = defaultBurst
}
codec := runtime.NoopEncoder{Decoder: scheme.Codecs.UniversalDecoder()}
config.NegotiatedSerializer = serializer.NegotiatedSerializerWrapper(runtime.SerializerInfo{Serializer: codec})