On Wednesday, June 08, 2011 07:33:45 Benjamin Severs wrote: > On Wednesday, June 08, 2011 06:21:45 AM Michael Moore wrote: > > Hi Benjamin, > > > > I don't have a quick fix, I don't know if others have seen this kind of > > issue before. I've created a ticket in Trac for it: > > https://www.orangefs.org/trac/orangefs/ticket/34 > > > > I'm planning on just copying your setup to recreate the problem. Anything > > special about the contents of the 10GB file or just urandom type data? > > > > Thanks for letting us know about this! > > > > Michael > > There was nothing special about the file. My file was just a repeating > sequence of characters (ex. 200 'A's, followed by 200 'B's, and so on). > > - Benjamin Severs
More information... I believe this issue is caused by some race condition among the directio threads. From my testing, it appears that the corruption stops (or at least hasn't shown up in my testing) if I either switch to using the alt-aio trove method or if I reduce the number of directio threads to 1. Hope this is useful. -- Benjamin Severs _______________________________________________ Pvfs2-developers mailing list [email protected] http://www.beowulf-underground.org/mailman/listinfo/pvfs2-developers
