On Sat, Jul 2, 2016 at 10:52 AM, Nick Fisk <friskyfisk10@xxxxxxxxxxxxxx> wrote: > Hi, hope someone can help me here. > > I'm exporting some XFS fs's to ESX via NFS with the sync option enabled. I'm > seeing really heavy fragmentation when multiple VM's are copied onto the > share at the same time. I'm also seeing kmem_alloc failures, which is > probably the biggest problem as this effectively takes everything down. > The same thing happens with MySQL's InnoDB files if O_DIRECT is in use. The kmem_alloc failure taking everything down is most likely a result of you calling xfs_bmap on these files and does not happen during normal use. I've had the same experience some time ago. _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
