从Kubernetes禁用透明的大页面

本文介绍了从Kubernetes禁用透明的大页面的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我通过Kubernetes部署Redis容器并收到以下警告:

I deploy Redis container via Kubernetes and get the following warning:

是否可以通过Kubernetes禁用THP?也许通过初始化容器?

Is it possible to disable THP via Kubernetes? Perhaps via init-containers?

推荐答案

是的，使用init容器非常简单:

Yes, with init-containers it's quite straightforward:

apiVersion: v1
kind: Pod
metadata:
  name: thp-test
spec:
  restartPolicy: Never
  terminationGracePeriodSeconds: 1
  volumes:
    - name: host-sys
      hostPath:
        path: /sys
  initContainers:
    - name: disable-thp
      image: busybox
      volumeMounts:
        - name: host-sys
          mountPath: /host-sys
      command: ["sh", "-c", "echo never >/host-sys/kernel/mm/transparent_hugepage/enabled"]
  containers:
    - name: busybox
      image: busybox
      command: ["cat", "/sys/kernel/mm/transparent_hugepage/enabled"]

$ ssh THATNODE cat /sys/kernel/mm/transparent_hugepage/enabled
always [madvise] never
$ kubectl create -f thp-test.yaml
pod "thp-test" created
$ kubectl logs thp-test
always madvise [never]
$ kubectl delete pod thp-test
pod "thp-test" deleted
$ ssh THATNODE cat /sys/kernel/mm/transparent_hugepage/enabled
always madvise [never]

这篇关于从Kubernetes禁用透明的大页面的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！