1. pstree -pl 进程树
sh: pstree: 未找到命令yum install -y psmisc
2. stress 安装(done)
sudo yum install -y epel-release
sudo yum install -y stress
3. cpuset limit(done)
Ubuntu14背锅
{"level":"info","msg":"set cgroup proc failed write /sys/fs/cgroup/cpuset/ddocker-cgroup/tasks: no space left on device","time":"2021-07-25T16:33:09+08:00"}
4. 打开/proc/self/mountinfo只有首次有效(done)
第二次就会出现如下的错误{"level":"warning","msg":"open /proc/self/mountinfo: no such file or directory","time":"2021-07-25T21:11:39+08:00"}
解决:从ubuntu1404更换到debian10
5. pivot_root 系统调用似乎没有生效(done)
解决:从ubuntu1404更换到debian10
6. pivotRoot 调用报错(debian10)
{"level":"warning","msg":"func[pivotRoot] syscall.PivotRoot error: invalid argument","time":"2021-08-07T16:01:34+08:00"}
7. go tool compile: open /dev/null: no such file or directory
mknod /dev/null c 1 3
为什么?这是啥?
8. mount: unknown filesystem type ‘aufs’
aufs已经过时了,最新的使用overlay,具体overlay的优势再总结
查看支持的文件系统类型cat /proc/filesystems
overlay挂载方式mount -t overlay overlay -o lowerdir=./lower,upperdir=./upper,workdir=./work ./merged