Re: [Condor-users] problem accessing files on samba

["Matei Stroila" <matei.stroila@xxxxxxxxx>]

On 5/23/07, Todd Tannenbaum <tannenba@xxxxxxxxxxx> wrote:
> Matei Stroila wrote:
> > Dear all,
> >
> > I am using Condor 6.8.4 and a pool of Windows 2003 servers. The
> > executable that I submit needs to load files from a Samba network
> > drive. I followed all the instructions for network file access (
> > run_as_owner, cred server etc). Everything seemed to run fine until I
> > looked at the log files and saw that sometimes the executable cannot
> > load remote files. This seems to happen randomly. The executable
> > processes a bunch of remote files normally and then it cannot load
> > another bunch and so on. Moreover, sometimes, I can no longer login to
> > some of the servers after submitting the jobs, for a couple of minutes
> > or so. Could this be a Condor configuration or a Windows security
> > issue (blocking my account after a threshold number of logins in a
> > period of time)?
>
> Or, another completely wild guess, is there some limit on the number of
> times a user can be logged in on machine X?  Do your machines advertise
> multiple VMs (cpu slots)?

Yes, they do.

> If so, perhaps your job is running fine on
> vm1@foo, then another job starts on vm2@foo logging in as the same user,
> and subsequently vm1@foo stops working correctly?

But they run fine, just that they cannot read files from a network
drive. So my own executable log looks like:

" Processing file //mynetworkdrive/filename1 ...
 Processing file //mynetworkdrive/filename2 ...
 Cannot read file //mynetworkdrive/filename3 ...
 Cannot read file //mynetworkdrive/filename4 ...
 Processing file //mynetworkdrive/filename5 ...
...."

Again, if these files were local, they would be all processed. This
"Cannot read file ..." seems to be random.

Thanks

Matei