[Gluster-devel] Problem with clients that goes down..

[Krishna Srinivas]

Guido,
I have replied you in the other thread...let us continue
with Antonio's problem on this thread..
Krishna

On Mon, Apr 21, 2008 at 5:04 PM, Guido Smit <guido at comlog.nl> wrote:
> Krishna,
>
>  The problem Antonio describes looks like the same problem I and Daniel
> described.
>
>  Unplugging one of the servers makes the whole cluster hang. I'm also still
> trying to figure
>  out what the problem exactly is. I've tried it without the unify
> translator, but on my cluster,
>  there is still a problem with the rest of the clients. They are not
> blocked, but I get a message that
>  the mountpoint is not connected (transport endpoint is not connected).
>
>
>
>
>
>
>
>
>  Krishna Srinivas wrote:
>
> > Hi Antonio,
> >
> > Excuse us, somehow your issue was not responded to.
> >
> > If I understand correctly, you are facing two problems:
> > 1) plugging out the cable on one client will make other clients hang
> > 2) the timeout value you specify in spec file does not reflect
> >   in the actual timeout you see when you access glusterfs.
> >
> > Is that correct? I have lost track of your setup details. Searching mail
> > archives did not give me the exact picture. Can you give the setup
> > details with config files? And also the tests?
> >
> > Surely the problem you are facing should be fixed.
> >
> > Regards
> > Krishna
> >
> >
> > On Mon, Apr 21, 2008 at 3:58 PM, Antonio González
> > <antonio.gonzalez at libera.net> wrote:
> >
> >
> > > Hello all,
> > >
> > >
> > >
> > >  I have made a lot of tests over GlusterFS to verify his viability. I
> wrote
> > >  at this list one or two weeks ago asking about an issue with clients
> that
> > >  goes down and causes problems with other clients that can not access to
> the
> > >  Gluster file system.
> > >
> > >
> > >
> > >  Are the developers of GlusterFS noticed about this issue?  I think that
> is a
> > >  serious problem and I need an answer to advice or not the use of
> GlusterFS
> > >  in a project.
> > >
> > >
> > >
> > >  I proved this issue over several scenarios (AFR/unify at server side,
> client
> > >  side, without AFR…), and I think that the problem is the unify
> translator.
> > >  I made a test with one server and two clients. Without unify translator
> > >  works fine, a client who goes down while reads or copy a file, don't
> affect
> > >  other clients. With the unify translator, if a client who reads/writes
> file
> > >  goes down causes the problem (other clients that tries an "ls" command
> are
> > >  blocked).
> > >
> > >
> > >
> > >  I made a test with two servers (without AFR, unify at client side), I
> have
> > >  localized files in each server, I try to block one server and access to
> a
> > >  file in the other server (cp command). I can see that the access to
> this
> > >  server (no blocked) is in function of the timeout option. If I don't
> set
> > >  timeout, the client takes 2 or 3 minutes and not finishes the command.
> If I
> > >  set a timeout of 20 sec the client takes 32 sec and finishes the
> command.
> > >  For a timeout of 40 s. the client takes 60 sec approximately.
> > >
> > >
> > >
> > >
> > >
> > >  I would like to know at least if this problem is recognized by the
> > >  developers of Gluster. They know which is problem?  They working to
> solve
> > >  it? .
> > >
> > >
> > >
> > >  Thanks,
> > >
> > >  _______________________________________________
> > >  Gluster-devel mailing list
> > >  Gluster-devel at nongnu.org
> > >  http://lists.nongnu.org/mailman/listinfo/gluster-devel
> > >
> > >
> > >
> >
> >
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> >
> >
> >
> >
>
>  --
>  Met vriendelijke groet,
>
>  Guido Smit
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>
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