今天我遇到了 docker 的问题，它停止了，我无法启动它
systemctl status docker
● docker.service - Docker Application Container Engine
Loaded: loaded (/usr/lib/systemd/system/docker.service; enabled; vendor preset: disabled)
Active: failed (Result: exit-code) since Tue 2020-01-28 09:59:03 +0330; 1min 51s ago
Docs: https://docs.docker.com
Process: 2327 ExecStart=/usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock (code=exited, status=205/LIMITS)
Main PID: 2327 (code=exited, status=205/LIMITS)
Jan 28 09:59:03 example.com systemd[1]: Starting Docker Application Container Engine...
Jan 28 09:59:03 example.com systemd[1]: docker.service: main process exited, code=exited, status=205/LIMITS
Jan 28 09:59:03 example.com systemd[1]: Stopped Docker Application Container Engine.
Jan 28 09:59:03 example.com systemd[1]: Unit docker.service entered failed state.
Jan 28 09:59:03 example.com systemd[1]: docker.service failed.
我看到了status=205/LIMITS我记得 3 天前我更改了ulimit配置
# /etc/security/limits.d/custom.conf
root soft nofile 1000000
root hard nofile 1000000
* soft nofile 1000000
* hard nofile 1000000
# /etc/sysctl.conf
fs.file-max = 1000000
fs.nr_open = 1000000
在撤消更改docker成功启动后，我将fd增加到100万
这里到底有什么问题？