>>> On Mon, 8 Feb 2010 15:45:41 -0600, Robert Olson <[email protected]> said:
olson> [ ... ] job metadata in an XML file Sounds like that you are trying to implement a distributed Lustre backed queueing system. Good luck. olson> that resides on a Lustre filesystem (I actually just olson> discovered my running system has it on NFS, but I'm olson> seeing an anomaly on Lustre so I'll keep writing). [ olson> ... ] all of which have the fs mounted with the flock olson> option (it falls over immediately without flock). I'm at olson> lustre 1.6.6. That mention of "NFS" here is worrying; if you are accessing a Lustre file via an NFS-Lustre proxy server I suspect you should be looking into NFS, and anyhow it may not be that reliable. olson> What I'm seeing is that, occasionally, the file reads olson> will pick up an empty or partial file. [ ... ] That seems to be the case as locking is supported in 1.6.6: http://lists.lustre.org/pipermail/lustre-discuss/2008-May/007365.html http://lists.lustre.org/pipermail/lustre-discuss/2008-May/007366.html _______________________________________________ Lustre-discuss mailing list [email protected] http://lists.lustre.org/mailman/listinfo/lustre-discuss
