Re: file leases

["William A.(Andy) Adamson" <andros@citi.umich.edu>]

> William A.(Andy) Adamson wrote:
> > The version 4 nfsd delegation implementation uses leases to co-ordinate 
> > behavior between local, samba, and nfs access.
> 
> Are they working properly?

in the testing that i have done, yes, they work.

> 
> When I share a directory using Samba 3.0.6, sometimes local access to
> a file stalls for a while - on the order of 10 seconds to open a file.

if your open() is blocking (did not specify O_NONBLOCK) then break_lease will 
contact all other processes (samba clients) one at a time, and will not return 
until all have been contacted. this could take a while.

> 
> It is very annoying, and I had to turn off oplocks in order to
> reasonably edit files in a shared directory.  I presume Samba
> implements oplocks using leases, and that is the cause of local access
> stalling.
> 
> I wonder if leases aren't working as they should be, or if Samba isn't
> using them properly.

i haven't run the samba server. 

> 
> -- Jamie
>