chen zhuo

I come from apisix-ingress-controller. we have many pod ips, I wanna checking this ips is exists, so i can't using active checker, i use only tcp passive checker. if http...

组织：upyun（又拍云） 地点：中国杭州 联系方式： chzhuo 使用场景：作为k8s容器网关，替换ingress-nginx，少部分业务使用中，稳定后彻底切换

I think jsonparser should not support this. It just need a string without considering where this string from

Can retry timeout be configured? Retry several times, if the limit timeout is exceeded, break the request。

I think we should add a `timeLimitAppender` to writer_handler.go like scrape.go to prevent invalid timestamp https://github.com/prometheus/prometheus/blob/1ea477f4bcd04c580e51711dca346a06421b311c/scrape/scrape.go#L752-L755