[Bug 879334] Re: nfsd from nfs-kernel-server very slow and system load from 25%-100% from nfsd

Wed Nov 16 11:42:46 UTC 2011

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" <879334 at bugs.launchpad.net>
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
>

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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