我们的 GKE 集群开始显示连接性代理错误:
connection read failure" err="read tcp 172.16.51.22:49332->172.16.51.8:10250: use of closed network connection" connectionID=1
和
conn write failure" err="write tcp 172.16.51.22:49332->172.16.51.8:10250: use of closed network connection" connectionID=1
和
could not read stream" err="rpc error: code = Unavailable desc = closing transport due to: connection error: desc = \"error reading from server: EOF\", received prior goaway: code: ENHANCE_YOUR_CALM, debug data: \"too_many_pings\
这些错误每 5 分钟出现一次,并且最后一个错误有时不会出现。
我们尝试将 GKE 集群更新到版本 1.22.6-gke.300,但没有帮助。
那么问题来了,我们该如何消除这个错误?或者说导致错误的原因是什么?