问题还原：
最近的docker容器经常被kill掉，k8s中该节点的pod也被驱赶。
解决方法：
使用以下命令查看被kill的所有进程
dmesg | grep -i -B100 'killed process'
查看到pod被驱赶的原因：
[3899860.525793] Out of memory: Kill process 64058 (nvidia-device-p) score 999 or sacrifice child [3899860.526961] Killed process 64058 (nvidia-device-p) total-vm:126548kB, anon-rss:2080kB, file-rss:0kB, shmem-rss:0kB
查看到docker容器被kill 的原因：
[3899859.737598] Out of memory: Kill process 27562 (jupyter-noteboo) score 1000 or sacrifice child [3899859.738640] Killed process 27562 (jupyter-noteboo) total-vm:215864kB, anon-rss:45928kB, file-rss:0kB, shmem-rss:0kB
查看内存使用情况
tilyp@tilyp:~$ free -h
total used free shared buff/cache available
Mem: 251G 96G 114G 2.5M 41G 153G
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