Re: RFC: NFS trunking (multiple TCP connections for a mount

2021-06-29 Thread Peter Eriksson
> I don't understand how multiple TCP connections to the same > server IP address will distribute the load across multiple network > interfaces? > I thought that lagg would have handled this? A lagg typically keeps all data in a TCP stream on a specific lagg member (depending on how the lagg i

Re: NFS Mount Hangs

2021-04-08 Thread Peter Eriksson
Hmmm.. We might have run into the same situation here between some Linux (CentOS 7.9.2009) clients and our FreeBSD 12.2 nfs servers this evening when a network switch in between the nfs server and the clients had to be rebooted causing a network partitioning for a number of minutes. Not every

Re: NFS Mount Hangs

2021-03-17 Thread Peter Eriksson
CLOSE_WAIT on the server side usually indicates that the kernel has sent the ACK to the clients FIN (start of a shutdown) packet but hasn’t sent it’s own FIN packet - something that usually happens when the server has read all data queued up from the client and taken what actions it need to shut

Intel ixl lagg boot problem on FreeBSD 12.2 on Dell R730xd

2021-02-19 Thread Peter Eriksson
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=253708 Whenever I try to boot a Dell R730xd server with FreeBSD 12.2-RELEASE-p3 it always locks up on boot - when attempting to enable the second Intel ixl 10G ethernet interface in a lagg (failover) link. Unless I enable verbose boot - then it

Re: how to fix an interesting issue with mountd?

2020-06-02 Thread Peter Eriksson
I once reported that we had a server with many thousands (typically 23000 or so per server) ZFS filesystems (and 300+ snapshots per filesystem) where mountd was 100% busy reading and updating the kernel (and while doing that holding the NFS lock for a very long time) every hour (when we took sna