On Mon, Jul 12, 2010 at 10:37:48AM -0500, Igor Chudov wrote: > Hello, > > I would like to apologize in advance if, for any reason, my question > is inappropriate for this mailing list. Please let meknow if that is > the case. > > This seems to be a very odd problem that I have isolated to NFS. > > I have two NFS servers. Server A and server B. They serve unrelated > shares. > > Server A is actually two servers using DRBD to stay in sync. > > I also have a number of NFS clients. > > Both servers worked great up to about last night. > > Somehow, NFS writes became extremely slow over Server A, for all > clients, but not for Server B. > > I have no idea, yet, what changed, but wanted to ask here if anyone > ever had a similar problem (NFS performance going to shit overnight). > > Some data points: > > 1) From any client, reading files over NFS is fast > 2) From any client, writing to NFS on Server A is VERY SLOW > 3) From any client, writing to Samba shares on Server A is fast. > 4) From any client, writing to NFS on Server B is fast. > 5) When logged on to Server A, copying a file from local A filesystem > to itself is fast. How are you measuring those exactly? (E.g. are you including the time to do a sync after writing?) --b. > > IOW, everything is fast, EXCEPT for NFS writes to server A. > > Any ideas what might cause this sudden deterioration of Server A? > > Thank you!!!!!!!!!!! > > i > -- > 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 -- 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
