原因分析
内存压力导致磁盘 IO 极高。
解决方案
Kubelet & heapster extremely high disk i/o (reads) · Issue #47928 · kubernetes/kubernetes · GitHub
Reserve Compute Resources for System Daemons | Kubernetes
1)通过处理内存占用高的应用,来环节内存压力;
2)然后,为应用程序增加 CPU、MEM 资源限制;
参考文献
Kubelet & heapster extremely high disk i/o (reads) · Issue #47928 · kubernetes/kubernetes · GitHub
Reserve Compute Resources for System Daemons | Kubernetes