当服务收到请求但没有可用的Pod时会发生什么? [英] What happens when a service receives a request but has no ready pods?

问题描述

具有连接到一组pod的kubernetes service(类型为ClusterIP)，但是它们目前都没有准备好-请求将如何处理? 会吗:

Having a kubernetes service (of type ClusterIP) connected to a set of pods, but none of them are currently ready - what will happen to the request? Will it:

• 急切地失败
• 超时
• 等待直到准备就绪的Pod可用(或永远(以较早者为准))
• 还有别的吗?

推荐答案

它将超时.

Kube-proxy从健康容器中提取IP地址并将其设置为服务的端点(后端).另外，请注意，所有kube-proxy所做的都是在创建，删除或修改服务时重新编写iptables.

Kube-proxy pulls out the IP addresses from healthy pods and sets as endpoints of the service (backends). Also, note that all kube-proxy does is to re-write the iptables when you create, delete or modify a service.

因此，当您在网络中发送请求时，没有人答复，您的请求将超时.

So, when you send a request within your network and there is no one to reply, your request will timeout.

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