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>>>>> "Goutham" == Goutham Kurra <[email protected]> writes:
Goutham> I can see that '-f' tries to stop all active rpc tasks to
Goutham> the server, but I guess the reference counts on the mount
Goutham> are not dropped. What would be cool is a 'brute-force'
Goutham> option that kills any process that still holds a reference
Goutham> to the filesystem and then also unmounts it.
A good idea, but there are still things that "kill -9" won't kill, and
people who don't understand why we need it. "Fix the application" they say.
A better idea is that -f goes into the file table, and makes all of
the references duds. When the applications writes, they get an I/O
error, and when they read, they get EOF or I/O error.
Goutham> The problem with using something like fuser is that it will
Goutham> promptly hang on an unreachable server making it useless on
Goutham> nfs filesystems.
Goutham> Any ideas on what to do in this case (i.e, unreachable NFS
Goutham> server, plus a bunch of processes hung on the mount)?
Yes, a shame. Perhaps we can fix fuser as well?
Goutham> I'm uncomfortable using lazy unmounts as I don't have a way
Goutham> of knowing if the filesystem has finally been dropped or
Goutham> not.
For critical stuff, using lazy or soft mounts is not a good idea.
- --
] "Elmo went to the wrong fundraiser" - The Simpson | firewalls [
] Michael Richardson, Xelerance Corporation, Ottawa, ON |net architect[
] [email protected] http://www.sandelman.ottawa.on.ca/mcr/ |device driver[
] panic("Just another Debian GNU/Linux using, kernel hacking, security guy"); [
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