FeiYing9 commented on issue #11934:
URL: https://github.com/apache/apisix/issues/11934#issuecomment-2608725491
> I believe the issue is with metric expiration logic.
>
> I was able to reproduce it locally when I set the expiration time to a low
value (like `expire: 10`) and had more than 1 worker process (I tested on 6,
but with more workers, it's easier to reproduce).
>
> Removing metrics expiration configuration resolves duplicates
>
> **Environment**
>
> ```
> APISIX version (run apisix version): 3.11.0
> Operating system (run uname -a): Linux 82435988518b 6.10.14-linuxkit #1
SMP Fri Nov 29 17:22:03 UTC 2024 aarch64 aarch64 aarch64 GNU/Linux
> OpenResty / Nginx version (run openresty -V or nginx -V):
openresty/1.25.3.2
> ```
i config the expiration like this:
```yaml
plugin_attr:
prometheus:
expire: 16
metrics:
http_status:
```
then i refer to this [example
config](https://github.com/apache/apisix/blob/0cb7d9ac8def4a490c8b49b7755a9484f3018eb2/conf/config.yaml.example#L599)
, seem that i make the wrong config of expire, so it's useless?
```yaml
prometheus: # Plugin: prometheus
# metrics: # Create extra labels from nginx variables:
https://nginx.org/en/docs/varindex.html
# http_status:
# expire: 0 # The expiration time after which metrics are removed.
unit: second.
# # 0 means the metrics will not expire
```
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