On Fri, 2011-08-19 at 16:01 -0700, Kelsey Cummings wrote: > I'm looking for some suggestions as to where to look next with an odd > nfs file locking problem with linux clients (RHEL6) and a netapp server. > FSC is enabled on these. > > The rather simple example code and output says it all. It works as > expected when a single process is run, when a second proccess is started > it works for a while and then something breaks and we start seeing it > take multiples of 30 seconds for the lock request to succeed. The more > proccess that are run, the more likely it is to occur as well as if a > proccess is started on a second client. > > When the issue is exhibiting itself, the netaps' lock status display the > granted and waiting locks as expected(?). Does the netapp filer have multiple NICs? There is a known bug with that in which the filer sends GRANTED calls from the wrong IP address: see the description at http://now.netapp.com/NOW/cgi-bin/bol?Type=Detail&Display=237430 Cheers Trond -- Trond Myklebust Linux NFS client maintainer NetApp Trond.Myklebust@xxxxxxxxxx www.netapp.com -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
