Enable NFS logging

[colearendt]

I do not know a whole lot about NFS, but wanted to see if there is an easy way to enable NFS logging for debug purposes when things are not behaving well. I am struggling to use the rpcdebug -m nfsd all suggested elsewhere on the web since the container does not have syslog running. Further, redirecting output from mountd or nfsd seemed to be ineffective.

Ideally, this logging (when configured) would go to stdout

[dajianderichang]

跟踪一下
目前我的方式是：
rpcdebug -m nfsd -s all
然后在容器内查看
dmesg