报错信息如下：
Salt request timed out. The master is not responding. You may need to run your command with `--async` in order to bypass the congested event bus. With `--async`, the CLI tool will print the job id (jid) and exit immediately without listening for responses. You can then use `salt-run jobs.lookup_jid` to look up the results of the job in the job cache later.
CPU一直是非常的高，解决方法是通过 strace -p 7161 跟踪这个pid查出salt再做什么，我这里查出是在lstat一个目录，目录异常，经确认后无用，
删除目录后解决。