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Old 08-22-2011, 06:46 PM
"Dr. Michael J. Chudobiak"
 
Default gnome-shell + nfsv4 = problems?!

Hi all,

I've been testing F15/gnome-shell on my desktop, and it works great...
except when I install it on a second user's desktop, everything slows to
a crawl, sometimes freezing the shells altogether. I can tell when
another gnome-shell system is in use, because mine freezes!

All users have nfsv4-mounted home folders on an F15 server. The systems
are acting like network problems are happening. If I Ctrl+F2 to a text
console, the local system is responsive, but directory listings of
remote folders are sluggish.

I don't see useful info in the logs.

However, ifconfig DOES show dropped RX packets on both systems, as well
as the server. All systems use the e1000e driver.

The systems are connected through a variety of switches, so I don't
think it is a switch issue. The F14 systems seem to work OK.

Anybody heard of something similar?

- Mike



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Old 08-22-2011, 07:20 PM
Tom Horsley
 
Default gnome-shell + nfsv4 = problems?!

On Mon, 22 Aug 2011 14:46:55 -0400
Dr. Michael J. Chudobiak wrote:

> Anybody heard of something similar?

I'm surprised you are merely slow. I can't get gnome to come
up at all on an NFS mounted home. I've always suspected the
annoying gnome filesystem bilge and the special fuse filesystem
mountpoint it tries to put in ~.
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Old 08-22-2011, 07:25 PM
"Dr. Michael J. Chudobiak"
 
Default gnome-shell + nfsv4 = problems?!

On 08/22/2011 03:20 PM, Tom Horsley wrote:
>> Anybody heard of something similar?
>
> I'm surprised you are merely slow. I can't get gnome to come
> up at all on an NFS mounted home. I've always suspected the
> annoying gnome filesystem bilge and the special fuse filesystem
> mountpoint it tries to put in ~.

Any bug reports on NFS issues?

- Mike
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Old 08-22-2011, 07:48 PM
Tom Horsley
 
Default gnome-shell + nfsv4 = problems?!

On Mon, 22 Aug 2011 15:25:56 -0400
Dr. Michael J. Chudobiak wrote:

> Any bug reports on NFS issues?

I've never made any bug reports since I don't actually need to use
it that way, I've just noticed the probably when I accidentally
signed on as the wrong user sometimes.

A bit of searching shows this:
https://bugzilla.gnome.org/show_bug.cgi?id=596176
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Old 08-22-2011, 07:56 PM
"Dr. Michael J. Chudobiak"
 
Default gnome-shell + nfsv4 = problems?!

On 08/22/2011 03:48 PM, Tom Horsley wrote:
>> Any bug reports on NFS issues?
>
> I've never made any bug reports since I don't actually need to use
> it that way, I've just noticed the probably when I accidentally
> signed on as the wrong user sometimes.
>
> A bit of searching shows this:
> https://bugzilla.gnome.org/show_bug.cgi?id=596176

I have "no_root_squash" on the nfsv4 server, so it isn't that bug... but
thanks for the pointer anyway.

- Mike

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Old 08-23-2011, 01:09 PM
"Dr. Michael J. Chudobiak"
 
Default gnome-shell + nfsv4 = problems?!

> I've been testing F15/gnome-shell on my desktop, and it works great...
> except when I install it on a second user's desktop, everything slows to
> a crawl, sometimes freezing the shells altogether. I can tell when
> another gnome-shell system is in use, because mine freezes!
>
> All users have nfsv4-mounted home folders on an F15 server. The systems
> are acting like network problems are happening. If I Ctrl+F2 to a text
> console, the local system is responsive, but directory listings of
> remote folders are sluggish.
>
> I don't see useful info in the logs.

Well now I do:

Aug 22 15:16:55 xena kernel: [ 9303.608663] nfs4_reclaim_open_state:
Lock reclaim failed!
Aug 22 15:17:05 xena kernel: [ 9313.465224] nfs4_reclaim_open_state:
Lock reclaim failed!
Aug 22 15:17:05 xena kernel: [ 9313.466475] NFS: v4 server returned a
bad sequence-id error on an unconfirmed sequence ffff8801539f1420!
Aug 22 15:17:05 xena kernel: [ 9313.467178] nfs4_reclaim_open_state:
unhandled error -10026. Zeroing state
Aug 22 15:17:05 xena kernel: [ 9313.467800] NFS: v4 server returned a
bad sequence-id error on an unconfirmed sequence ffff8801129c3e20!
Aug 22 15:17:05 xena kernel: [ 9313.468429] nfs4_reclaim_open_state:
unhandled error -10026. Zeroing state
Aug 22 15:17:05 xena kernel: [ 9313.469037] NFS: v4 server returned a
bad sequence-id error on an unconfirmed sequence ffff8801129c2420!
Aug 22 15:17:05 xena kernel: [ 9313.469663] nfs4_reclaim_open_state:
unhandled error -10026. Zeroing state
Aug 22 15:17:05 xena kernel: [ 9313.470814] nfs4_reclaim_open_state:
unhandled error -10026. Zeroing state
Aug 22 15:17:05 xena kernel: [ 9313.471429] nfs4_reclaim_open_state:
unhandled error -10026. Zeroing state

Does that mean anything to anyone?

- Mike
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Old 08-23-2011, 08:38 PM
"Dr. Michael J. Chudobiak"
 
Default gnome-shell + nfsv4 = problems?!

> I've been testing F15/gnome-shell on my desktop, and it works great...
> except when I install it on a second user's desktop, everything slows to
> a crawl, sometimes freezing the shells altogether. I can tell when
> another gnome-shell system is in use, because mine freezes!
>
> All users have nfsv4-mounted home folders on an F15 server. The systems
> are acting like network problems are happening. If I Ctrl+F2 to a text
> console, the local system is responsive, but directory listings of
> remote folders are sluggish.

Maybe I should re-phrase the question...

Does anyone have a working network of multiple simultaneous users
running gnome-shell and firefox, served from home folders on a nfsv4
server (all F15)?

- Mike

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Old 08-24-2011, 07:09 PM
"Dr. Michael J. Chudobiak"
 
Default gnome-shell + nfsv4 = problems?!

On 08/22/2011 02:46 PM, Dr. Michael J. Chudobiak wrote:
> Hi all,
>
> I've been testing F15/gnome-shell on my desktop, and it works great...
> except when I install it on a second user's desktop, everything slows to
> a crawl, sometimes freezing the shells altogether. I can tell when
> another gnome-shell system is in use, because mine freezes!

OK, gnome-shell + firefox + nfsv4 = JUST DOESN'T WORK.

I switched to glusterfs, and with a few tweaks, it rocks! (Tweaks = need
"features/posix-locks" in glusterfsd configs, and do the client mounts
in /etc/rc.d/rc.local, and not in /etc/fstab.)

My firefox freezes are gone. Firefox has stopped losing my authenticated
sessions (cookies.sqlite). The system boots much faster.

I hope this helps others in a similar situation!

- Mike
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