*** This bug is a duplicate of bug 879334 ***
https://bugs.launchpad.net/bugs/879334
I have been struggling with the same problem for the last few months,
and accidentally stumbled on a fix that seems to work :
1. On clients set rsize=8192,wsize=8192 in /etc/fstab
I suspect that when multiple clients are writing to the NFS4 server
simultaneously and overloading the network, the TCP network congestion
control only works well for rsize,wsize <= 8192 (the maximum value under
Linux when the code was originally written). For single clients larger
values DO provide a benefit in higher throughput, but evidently there is
some kernel bug triggered when using larger rsize and wsize values under
conditions of network overload.
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1006446
Title:
nfs4 causes enormous load in ubuntu-server making it unusable
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1006446/+subscriptions
--
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
