It helps if you have an empty CellServDB. That way you won't have a bunch
of cells in /afs and you can still go to cells that have correct DNS
records when you need to.



On Mon, Dec 10, 2012 at 10:10 PM, Troy Benjegerdes <ho...@hozed.org> wrote:

> This seems to be a common cause of pain for people using AFS,
> and I think its a user-interface experience that drives people
> away.
>
> You install AFS, and then all of a sudden you go do something
> and your user-interface just hangs. You have not idea what
> triggered it, you just associate 'crappy non-responsive computer'
> with this AFS thing.
>
> Is there any reasonable way we can provide a global /afs namespace,
> while still retaining good performance (i.e. under 100ms response
> time when file managers to into /afs/*/)?
>
> We can talk about client misconfiguration, or bad DNS , or bad
> network, or whatever, but the buck's got to stop somewhere. How
> can we provide fast response and still indicate somehow (with
> an AFS manager app/system tray???) that some servers may be
> inaccessible, slow, or misconfigured, but still not block when
> file managers go look at things??
>
> There should be a checkbox for "Yes, make me wait for responses
> from servers in cell XXX, and give me an indication who you're
> waiting for", otherwise non-local cells should probably just
> return whatever data they have, or just ENOTCONN
>
> On Mon, Dec 10, 2012 at 03:50:05PM -0500, Jeffrey Altman wrote:
> > -fakestat provides no benefits if the application is going to read the
> contents of the volume root directory referenced by a mount point.
>  -fakestat works by generating fake stat info for the mount point target
> instead of reading the actual data belonging to the target which might
> require a volume location database lookup in addition to the file server
> fetch status RPC.  There might even need to be DNS queries to find the
> locations of the VLDB servers in the foreign cell.
> >
> > Jeffrey Altman
> >
> >
> > On Dec 10, 2012, at 1:22 PM, jukka.tuomi...@finndesign.fi wrote:
> >
> > >
> > > Hmmm... Strange things happened. After several hang-ups, being more
> > > patient they turned into time-outs, until... even nautilus could get
> > > through! First I thought that initiating nautilus from the command
> line -
> > > as part of strace command - did something, but then I could browse (in
> > > veeeery slow motion) directly within nautilus.
> > >
> > > Now it seems more likely that eventhough fakestat does its thing within
> > > the local cell (or is otherwise just faster), the same thing isn't
> > > happening with the foreign cells (or it is just too slow). Once the dir
> > > content is displayed, nautilus continues to dig deeper into subdirs on
> the
> > > background, adding the number of items one-by-one. So it seems it
> hasn't
> > > scanned all-of-all before displaying the content!?
> > >
> > > Should fakestat-all instead of fakestat solve this situation? How
> exactly
> > > should I tweak the configuration to have it started on boot, and how
> can I
> > > verify that it is on?
> > >
> > > br, jukka
> > >
> > >
> > >
> > >> On Sun, Dec 9, 2012 at 3:37 PM,  <jukka.tuomi...@finndesign.fi>
> wrote:
> > >>>
> > >>> By "own-path" I mean local cell as opposed to foreign one.
> > >>
> > >> Oh, this may not be the same issue then. On my computer I see the GUI
> > >> freezes happening for my local cell.
> > >>
> > >> You can try running nautilus through strace or gdb to see what
> > >> specifically is hanging:
> > >>
> > >> $ strace /usr/bin/nautilus
> > >>
> > >> You probably want to ensure no other Nautilus processes are running
> > >> before you do that (ps -A | grep nautilus).
> > >>
> > >> It's possible Wireshark or tcpdump might tell you more as well. I
> > >> would start by sniffing on the ports for DNS, Kerberos, and AFS:
> > >>
> > >> $ tcpdump "port 53 and port 88 and portrange 7000-7005"
> > >>
> > >> (or use that filter in Wireshark)
> > >>
> > >> - Ken
> > >> _______________________________________________
> > >> OpenAFS-info mailing list
> > >> OpenAFS-info@openafs.org
> > >> https://lists.openafs.org/mailman/listinfo/openafs-info
> > >
> > >
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> >
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