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如何解决Red Hat Enterprise Linux中内存不足(OOM)终止程序的问题?

Solution In Progress - Updated -

Issue

  • 内存不足(OOM)终止程序守护进程正在终止活动进程。
  • Red Hat OpenStack Platform 节点上的服务正在随机死亡。
  • Red Hat OpenStack Platform 节点上的内存使用率似乎很高。
  • Red Hat OpenStack Platform 节点上的可用内存似乎较低。
  • 在日志中有一个 Out of memory: Kill process 43805 (keystone-all) score 249 or sacrifice child 提示:
[Wed Aug 31 16:36:42 2016] Out of memory: Kill process 43805 (keystone-all) score 249 or sacrifice child
[Wed Aug 31 16:36:42 2016] Killed process 43805 (keystone-all) total-vm:4446352kB, anon-rss:4053140kB, file-rss:68kB
[Wed Aug 31 16:56:25 2016] keystone-all invoked oom-killer: gfp_mask=0x280da, order=0, oom_score_adj=0
[Wed Aug 31 16:56:25 2016] keystone-all cpuset=/ mems_allowed=0
[Wed Aug 31 16:56:25 2016] CPU: 2 PID: 88196 Comm: keystone-all Not tainted 3.10.0-327.13.1.el7.x86_64 #1

Environment

  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 6
  • Red Hat OpenStack Platform 9.0
  • Red Hat OpenStack Platform 8.0
  • Red Hat OpenStack Platform 7.0

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