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Systemd 表现出高 cpu 和负载以及大量挂载

Solution In Progress - Updated -

Issue

  • 我们看到 systemd 消耗 30-100% 的 cpu
  • 我们看到很高的 systemd cpu ,我们的系统负载超过 5
  • Pod 需要很长时间才能启动
  • 我们的服务器上的/proc/1/mountinfo中有大量挂载(超过 1000 个)
  • 我们有大量运行 secret、卷和配置映射的容器

Environment

  • Red Hat Enterprise Linux (RHEL)
    • 7
    • 8
  • Red Hat Enterprise Linux Core OS (RHCOS)
    • 8
  • OpenShift Container Platform(OCP)
    • 3
    • 4

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