[Linux-cluster] NFS configuration question

[Birger Wathne]

Eric Kerin wrote:

> On Tue, 2005-07-12 at 03:09 +0200, Birger Wathne wrote:
> 
>>I did a make install and service rgmanager stop/start.
>>
>>Now, status checks seem to work. After exportfs -r all file systems 
>>eventually reappear.
>>
> 
> 
> Good to hear that fixed the monitoring for you.
> 

Do you want the bad news as well?

The > 14 character long export path bug is still there in the FC4 branch.
If the exported path is > 14 characters it will always fail status check and 
get reexported. This is because exportfs breaks lines after the exported 
path if it is long. I think exportfs shouldn't do this, but I guess the 
cluster software will have to work around it.

The line that fails is:
exportfs | grep -q "^${OCF_RESKEY_path}\ .*${OCF_RESKEY_target}"

A proper fix would be a filter to remove the offending line breaks. My quick 
and dirty (and far less portable) fix is to use this instead:

grep -q "^${OCF_RESKEY_path}[   ]*${OCF_RESKEY_target}(" /var/lib/nfs/etab

Note that my code is a little bit more restrictive. It makes shure the 
target matches exactly, while the existing code will match if 
${OFC_RESKEY_target} is a prefix, won't it? In other words, if you look for 
an unqualified target and there is an export to a fully qualified host with 
the same hostname (but possibly in a different domain... hard to tell) the 
existing code will match. I guess there should be a '$' at the end of the 
regexp.

Should I bugzilla this, or will you take it? I don't remember my user, but I 
think I created one. Perhaps it's simply birger. :-)

-- 
birger