I wonder if your fresh install uses different mount options. Eg nfs 4 while
the old install used version 3?

I have an old exports on my server so I expect it uses 3. Did you convert
your exports?
Op 16 nov. 2011 12:35 schreef "Vagelis Nonas" <email address hidden>
het volgende:

> I have made a fresh install of the diskless machine with the latest
> ubuntu (11.10) and the problem has gone away.
>
> However, now that you mentioned about big files I noticed in the old
> diskless file system (ubuntu 10.10) there are many hidden .nfsxxxxxxxxxx
> files some of them quite big. I suppose they are left overs....
>
> Here are a few examples (the size appears before the date):
> 115351481 16252 -rw-r--r--   1 root     root     16642048 Feb 26  2011
> /mnt1/ubuntu/var/cache/apt/.nfs0000000002a50011000000e2
> 115351436 16792 -rw-r--r--   1 root     root     17236093 Sep 11 15:57
> /mnt1/ubuntu/var/cache/apt/.nfs0000000006e01f8c00000063
> 115351478 16020 -rw-r--r--   1 root     root     16404288 Dec 20  2010
> /mnt1/ubuntu/var/cache/apt/.nfs000000000057c00900000032
> 115351480 16208 -rw-r--r--   1 root     root     16594500 Feb 16  2011
> /mnt1/ubuntu/var/cache/apt/.nfs0000000002a5001200000036
> 115351483 16704 -rw-r--r--   1 root     root     17102785 May  5  2011
> /mnt1/ubuntu/var/cache/apt/.nfs0000000002a5004d00000032
> 115351460 16824 -rw-r--r--   1 root     root     17283067 Oct 22 07:45
> /mnt1/ubuntu/var/cache/apt/.nfs0000000006e01fa40000009d
> 115351839 16820 -rw-r--r--   1 root     root     17284552 Oct 13 07:26
> /mnt1/ubuntu/var/cache/apt/.nfs0000000006e0211f0000001b
> 115351479 16152 -rw-r--r--   1 root     root     16536128 Feb  2  2011
> /mnt1/ubuntu/var/cache/apt/.nfs0000000002a5000f00000026
> 115351470 16804 -rw-r--r--   1 root     root     17258153 Sep 17 07:51
> /mnt1/ubuntu/var/cache/apt/.nfs0000000006e01fae000000bd
> 115351755 16820 -rw-r--r--   1 root     root     17261588 Oct  5 07:33
> /mnt1/ubuntu/var/cache/apt/.nfs0000000006e020cb00000019
> 115351482 16380 -rw-r--r--   1 root     root     16769594 Apr 22  2011
> /mnt1/ubuntu/var/cache/apt/.nfs0000000002a5004c0000001b
> 115352738    4 -rw-r--r--   1 root     root         1681 Feb  2  2011
> /mnt1/ubuntu/etc/.nfs0000000006e024a200000026
> 115353070 2097156 -rw-r--r--   1 root     root     2147483648 Mar 18  2011
> /mnt1/ubuntu/etc/.nfs00000000001b807b00000028
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/879334
>
> Title:
>  nfsd from nfs-kernel-server very slow and system load from 25%-100%
>  from nfsd
>
> Status in “nfs-utils” package in Ubuntu:
>  Confirmed
>
> Bug description:
>  I have a diskless ubuntu 10.10 machine which I boot regularly using
>  pxe-boot from another ubuntu machine where I have the root filesystem
>  of the diskless machine exported over nfs.
>
>  I set it up about a year ago using 10.10. In the mean while the server
>  machine got upgraded to 11.04 and as of yesterday to 11.10.
>
>  After the upgrade to 11.10 the diskless machine is dead slow (most of
>  the times it wont even boot completely) and the load on the server
>  machine is high (25%-100% as shown from top). If in the middle of the
>  diskless computer booting I do a restart of the nfs server, the client
>  computer proceeds with the boot a bit more and then it gets stuck
>  again. I have to restart and nfs-server 3-4 times in order to get the
>  gdm login screen at the client machine
>
>  ProblemType: Bug
>  DistroRelease: Ubuntu 11.10
>  Package: nfs-kernel-server 1:1.2.4-1ubuntu2
>  ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
>  Uname: Linux 3.0.0-12-generic i686
>  ApportVersion: 1.23-0ubuntu3
>  Architecture: i386
>  Date: Fri Oct 21 12:53:02 2011
>  ProcEnviron:
>   LANG=en_US.UTF-8
>   SHELL=/bin/bash
>  SourcePackage: nfs-utils
>  UpgradeStatus: Upgraded to oneiric on 2011-10-20 (1 days ago)
>
> To manage notifications about this bug go to:
>
> https://bugs.launchpad.net/ubuntu/+source/nfs-utils/+bug/879334/+subscriptions
>