I configured rate-limiting correctly according to the istio tutorial, and it worked. But when I lowered the limit, it seemed that rate-limiting had not changed.Here are all my configuration files. I hope you can give me some help. Thank you very much.
apiVersion: config.istio.io/v1alpha2
kind: handler
metadata:
name: quotahandler
namespace: istio-system
spec:
compiledAdapter: memquota
params:
quotas:
- name: requestcountquota.instance.istio-system
maxAmount: 500
validDuration: 1s
# The first matching override is applied.
# A requestcount instance is checked against override dimensions.
overrides:
# The following override applies to ‘reviews’ regardless
# of the source.
# The following override applies to ‘productpage’ when
# the source is a specific ip address.
- dimensions:
destination: productpage
source: “10.28.11.20”
maxAmount: 500
validDuration: 1s
# The following override applies to ‘productpage’ regardless
# of the source.
- dimensions:
destination: productpage
maxAmount: 500 （Here I increased the number of requests per second.）
validDuration: 1s
At first, I configure it directly.
- dimensions:
Destination: product page
MaxAmount: 1
Valid Duration: 5S
Rate-limiting works well.
When I configure:
- dimensions:
Destination: product page
MaxAmount: 500
ValidDuration: 1s
The request will still return 429 in a short time，configuration (500/s) should be unrestricted at this time.During the test, I visited k8s product page service IP directly, such as curl 10.233.5.240:9080/product page.
I hope you can tell me why. Thank you very much for your answer.