[Linux-cluster] GNBD/GFS question

[mehmet celik]

hi Balagopal, thanx for information..

have a nice day..

>From: Balagopal Pillai <pillai at mathstat.dal.ca>
>Reply-To: linux clustering <linux-cluster at redhat.com>
>To: linux clustering <linux-cluster at redhat.com>
>Subject: RE: [Linux-cluster] GNBD/GFS question
>Date: Sat, 14 Jul 2007 15:45:45 -0300 (ADT)
>
>On Sat, 14 Jul 2007, mehmet celik wrote:
>Hi,
>
>         I have seen this before when i was evaluating gfs, in the scenario
>when a fenced node, when rebooted and is back up, still stays fenced. 
>Please try manual unfencing
>like this. This worked for me -
>gnbd_import -u <node name> -t <gnbd server>
>
>Regards
>Balagopal
>
> >
> > hi james, are you using which the "gnbd_export" parameters ?? if you 
>don't use
> > "-c", you get this error (Cancelled login). Because the device has 
>timeout.
> > you check fence with "gnbd_import -c GNBD_SERVER_NAME" on other nodes...
> >
> > you should use "gnbd_import -s XXXX -t YYYY" on GNBD_SERVER. XXXX is 
>node_name
> > or node_IP. YYYY is gnbd_server_name or gnbd_server_IP.
> >
> > have a nice day..
> >
> > Mehmet CELIK
> > Istanbul/TURKEY
> >
> > >From: James Fait <fait at anl.gov>
> > >Reply-To: linux.clustering at redhat.com,linux clustering
> > ><linux-cluster at redhat.com>
> > >To: linux clustering <linux-cluster at redhat.com>
> > >Subject: [Linux-cluster] GNBD/GFS question
> > >Date: Sat, 14 Jul 2007 13:14:15 -0500
> > >
> > >I have run into the following problem using GNBD/GFS on a 4 node test
> > >cluster I have set up.  I have been testing failure scenarios to make
> > >sure that things will be handled correctly when a node is fenced using
> > >fence_gnbd.
> > >The cluster is a set of 4 dell 1u servers, with dual 1GB network
> > >connections, one to the intranet, and the other to a storage net.  The
> > >cluster communications all happen on the storage net.  Each machine has
> > >a dns name, which is decoded to the hostname for logs, which is the
> > >intranet address. The storage net also has name to ip resolution via 
>the
> > >hosts file, to names of the form cluster*.  Cluster29 is the gnbd 
>server
> > >node, and does not mount the gfs volume at all.  The other three nodes
> > >do mount the gfs volume.
> > >
> > >This is the test that is currently causing the problem.
> > >         I kill the network link for cluster28(com28) using the network
> > >         switch to temporarily disable the link.
> > >
> > >         Cluster28 is fenced successfully. One of the other nodes 
>handles
> > >         the gfs cleanup.
> > >
> > >         The network link is restored.
> > >
> > >         Cluster28 attempts an orderly shutdown, and hangs on umount of
> > >         gfs.  Later, it is power cycled to force reboot.
> > >
> > >         Cluster28 rejoins the cluster, and attempts to mount gfs.  The
> > >         gnbd_import command fails with the error messages:
> > >                 gnbd_recvd: ERROR login refused by the server,
> > >                 quitting : Operation not permitted
> > >                 gnbd_import: ERROR gnbd_recvd failed
> > >
> > >         Cluster29 reports the error:
> > >                 com29 gnbd_serv[4794]: ERROR [gserv.c:468] client
> > >                 cluster28 is banned. Canceling login
> > >
> > >What is happening, and what can I do about it?
> > >
> > >Sincerly
> > >
> > >Jim
> > >--
> > >James Fait, Ph.D.
> > >Beamline Scientist, SER-CAT
> > >APS, building 436B-008
> > >Argonne National Laboratory
> > >9700 S Cass Ave
> > >Argonne, IL 60439
> > >phone 630-252-0644
> > >fax   630-252-0652
> > >email fait at anl.gov
> > >
> > >--
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> > >Linux-cluster at redhat.com
> > >https://www.redhat.com/mailman/listinfo/linux-cluster
> >
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